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Hello this is Martez or Corti.



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And in this story all we are going to learn about notification channels in Android 8 Odeo.



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So first let me tell you that if your app targets the Android or your Android 8 you must use notification



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channels in order to actually create notifications for your applications.



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But if you're actually targeting it then versions of Android API less than Android 8 or audio you don't



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have to use Actually you're not allowed to use the notification channel because the notification channel



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is only used for Android 8.



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So if you want to create your own Android application when you want to implement the notification channel



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it's better to differentiate between these API.



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So for example you can create an if statement and say that if the app targets the versions that are



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actually listed and relayed then you can create another notification and other type of notification



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that I teach in the course.



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And if your app targets Android 8 you can create notification channel.



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So if you want to learn how to differentiate between API is an android you can watch the custom view



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application.



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I think this app is actually in the request that section of the course and the last section of the calls



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you can find it there and learn how to differentiate between API is in Android.



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So are in another application of the course I teach how to use and other type of notification that you



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can actually target versions less than and AP Android 8 and learn how to implement that notification.



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So with that said now let's actually continue.



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First of all let me tell you that you need to actually update your Android SDK packages so you just



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need to Android open the Android studio click and configure and here it says STK manager.



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Just click on it.



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So here we have the manager at the bottom it says show package details.



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If I actually select this option we can see the show package details.



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So make sure that you actually update the Android SDK pay packages.



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For example we have this one Android TV so we don't want to use Android TV in our discourse but as you



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can see we have all of these other packages installed on my computer.



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And if it really is the key tools here you can see that we have this Android is the key built tool.



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So if we if we can show package details here at the bottom now we can see if it actually scroll down.



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Here we have all of these as detailed.



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These packages installed Android up twenty six point zero point forty point two actually so this is



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actually the card and it is the build tools if you want to target Android 8 and here we have GPO debugging



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tools so I don't have this one installed on my computer.



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We have Android emulator.



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Android is the key platform tools.



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Make sure to install these packages.



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Android SDK tools Android support love library.



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We have deep debugging tools.



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We have this one Google Play a fixed extension of a licensing library.



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Google Play services and we have this Google word driver and here you can see this.



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And Intel X 86 emulator accelerator the hag's.



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And so if you or your computer has an Intel CPQ you can actually install this package and we have this



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one support repository so forth is actually for this package support repository you can install the



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constraint play out for android.



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We have a solver for constraints lay out because the constraints they are actually the new you need



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to actually install these packages because we are going to actually also use the constraints they have



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in this application.



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So if we have this android support repository it is very important and Google repository and nautically



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can apply if you want to install the packages.



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OK.



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So I went to the can can.



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So let's click on Start in your Android studio project the application name is going to be notification



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channel and notification channel.



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So I just say See and here we have the company domain the product location.



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So just to recap next here are let's here because we want to actually only target and rate AP Android



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8 and we do not want to differentiate between versions of and with the Android operating system we just



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use Android eight point zero as the minimum SDK and we just click on next choose MT activity next and



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for the activity name just don't change anything here.



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Just click on finish.



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So let's wait a little bit here.



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So now that a project is created Let's close this dialogue here.



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Now on the left hand side we have this and view let's open this folder app and let's open this race



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folder.



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Let's lay out for that and double click and this activity underline made that example you're going to



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design the user interface here first.



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So we have this hello overload takes you at the center just selected and then press on delete key on



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your keyboard.



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Now you're going to actually say that we have an 80 text inside or kind of straitly.



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So inside this palette section discrete context.



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And in order to find it it takes the first one is takes you and the others here.



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For example we have a plain text password text password.



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These are 80 texts or in other words text fields that we can enter a value.



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OK but this takes view is not a text field it's just a taste really it's just a label.



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If you are on are you a symbol of her.



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So for these other components for example you can see if you have the time we have that date for example



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you can enter the time that if you can enter the date date you can enter the number only number.



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All we have this one a number assigned.



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Only the signed numbers so what's what is the sign number the signed number is actually the positive



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and negative numbers.



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And we have the unsigned number that actually only accepts the positive numbers.



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So in this case you're going to learn more about these kinds of differentiations in Android If we have



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the number decimal only this.



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Does it it takes only accepts the simple numbers autocomplete X and Monte autocomplete XP which I actually



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teach more about this one.



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These ones are later in this course.



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But for now we're going to use the plain text.



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So just select it and drag it here into this constraint.



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And here you can see that we have this component through Section discount punch through section has



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a constraint laid out inside this constraint lay out.



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We have this edit text right.



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So now I put this edit text here and I can see that some constraints at the left hand side and the right



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hand side.



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I actually created the reason that it has created these constraints for me is that this option here



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is iconic and see that it says auto connect feature of the constraint.



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This feature is now on turned on and you can see that these constraints are created automatically for



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me if you don't want these constraints created for you which you just need to turn off this feature.



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So here you can see that we have the left constraint and the right right.



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So let's create a constraint to the top to the bottom edge of this tool bar OK.



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And now let's select this text and let's say that we have the ID is going to be EDT EDT.



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What's movie watch movie and the person on your keyboard.



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And for the text you can't just delete the text or actually did it to the text value of these text attributes.



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We have this hint attribute and here you can see enter and name of movie.



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So here we can see that I actually enter this hardcoded value it is not recommended to use hardcoded



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values you can create a strange resource here inside this radius folder inside a string that exemplified.



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And then you just need to refer to the name of that string resource.



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But here are because we use it in later discourse you're going to learn about this feature or in the



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previous application you have learned how to use string strings that I am a find.



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We're not going to use it.



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But if you want to you can do that.



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And it is recommended to use the strings resources so let's person precedented Janet Hubert.



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So here is the text.



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Let's also just put dot dot dot.



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So now is more meaningful.



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Now we are going to actually say let's look at a bottom here.



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Inside are constantly out.



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So inside this pulse section just click on all and then the spot to strike it here below.



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This takes you and here you can see that the left constraint and the right hand strike is created.



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Let's create a constraint to the bottom edge of this editrix so you can see this little circle.



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This green color this green circle that is actually pulsating.



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Let's create a connection to the bottom edge of this.



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It takes here.



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Now the connection is created you can see that this little circle here is now red that is pulsating.



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So now let's select this spot in 40 already we can say between BT and votes movie and then present and



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future on your keyboard and for the ticks you can say post notification post notification



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for movie



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and then precedented here on your keyboard.



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Post notification for movie.



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And here let's add another button.



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So just write this posting here.



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Do this part and your That's created a connection to the body image of this.



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But in here it is post notification for a movie and then select a spot in for the OED.



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They've in here between settings billions movie movie settings and then precedented on your keyboard.



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And for the text to typing here sittings for movie notification for movie notification



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and then person enter key on your keyboard.



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So now that we have these buttons and this text here we can go ahead and enter the codes that are required



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in order to create a notification or notification Channel for Android 8.



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So now let's see how we can do that.



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So first of all we need to open the Android view here at the left hand side and we have this job folder



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open it and we have this first package right.



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Right click on this package here new and then click on Java class.



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So for the name of the class we are going to say notification notification handler.



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So we're are going to create a handler for the notification that the notification channel that you are



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going to create and here you can see that it has a visibility Popbitch modifiers non-thought just don't



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add anything here.



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Make sure the package is this is the value that you actually specified for the package of your application.



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So if you're just right click and this package is going to automatically put this package here.



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In other words you don't have to change anything.



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Just name the class district technology.



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So here it is our class that's DoubleClick and establish order to make this area wider.



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Now this class must extend from the context context of wrapper class.



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So let's see what is this context wrapper in Android documentation.



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So here it is our documentation you can search in Google context wrapper or you can just enter this



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you are a developer and right dot com slash defense slash Android slash content slash context wrapper



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that ASTM it.



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So here you can see that this class directly extends from the context class.



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So the context wrapper class is actually the context.



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Right.



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And here it says proxying implementation of context that simply delegates all of its calls to another



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context can be subclassed to modify behavior without changing the original context.



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So first let's see what is context.



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So I just opened another tap here for you and I searched for what is context in Android.



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We have this line here in stack overflow.



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So I just click on this link here.



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What is context that Android.



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And I'm going to just scroll down here so here it is the accepted answer.



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It says putting it simply as this name suggests it's the context of current state of the application



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or object.



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It lists newly created objects understand what has been going on.



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Typically you Corlett to get information regarding another part of your program.



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This is really important.



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You just cut the context to get information regarding another part of our program.



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It is you can get the context but if by invoking the application context context Meffert get base context



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Meffert or it's then in a class that extends from the context such as the application activity service



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and intense service class we use context to access the features outside of our activity.



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So in this case you want to use the notification channel.



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That's why we use context here.



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You want to access some other features that are actually outside of our activity.



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So if you're going to use the context wrapper class which is a subclass of the context class.



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So let's open our Android studio here to consider our class notification handler class extends from



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the context wrapper but it's sooner or later and it says there is no default constructor available in



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Android that content that context wrapper so we need to create a constructor inside this class.



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So first we need to say that it is public the name of the constructor must be as the name as the name



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of the class.



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So notification handler and I just put a pair of practice's here.



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This constructor is going to accept an argument of type context.



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So we're going to create a create a parameter here.



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So what's the difference between plie here and argument.



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The argument is the actual value that we passed to some effort by the parameter is when you actually



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declare a prime it'll for you for your method.



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OK.



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So whenever For example later when we actually call this constructor we want to pass an argument of



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tokens context.



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It is called argument but when we want to create it we are going to say if we have a plummet here of



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type context for this method it's so that's the difference between an argument and a prime actor in



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Android.



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So inside is constructor we can say that need to call the super constructor super and to pass the context.



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That's it.



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So now inside is class if you're going to create some instance variables.



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So the first instance variable that we are going to create inside our class is going to be of type notification



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manager.



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So we're going to say private notification manager notification manager and the name is going to be



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a notification manager semicolon.



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Now we're going to create another instance variable but this time this instance variable is going to



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be public because we want to use this instance variable from another class main activity.



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So we're trying to say public static final.



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So as you can see this is actually a constant.



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This is not a regular variable.



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This is a constant.



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And when it is created it it cannot be changed.



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They do it and it is initialized it cannot be changed later.



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So public static final and the name of this variable here is going to be watching movies so whenever



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you create a constant in Android.



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Make sure to actually make it uppercase instead of a lowercase.



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So all of these letters all of the letters of the name of this constant should be uppercase I'm going



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to say Vought underline movie Bodyline and notification channel notification other live chat on other



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line ID so there is that I actually chose this last name is that I wanted this to be actually meaningful



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for you.



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So if you're creating your own idea you don't have to actually choose our name like this one.



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You can just choose a short short shorter name but I just want to make it more meaningful for you.



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So I'm gonna choose this name and as you can see here I didn't specify the data type of this constant



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so that is fine and we need to specify the type which is actually strange.



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And I put two codes here.



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And as the value I'm going to say watch a movie notification noti fixation channel semicolon.



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So let's actually say create a new line here.



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Now this is the idea about notification and right now when it is specify a name for it for notification



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Channel and this name is going to be visible to the user.



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OK.



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00:19:15,500 --> 00:19:25,960

So again it is actually the public static final strange and here I'm going to say what movie notification



230

00:19:25,960 --> 00:19:28,320

name so I'm going to copy this name here.



231

00:19:29,210 --> 00:19:30,480

And I'm going to put it here.



232

00:19:30,690 --> 00:19:38,670

And instead of ID I'm going to say name assignment operator and as the as the value we're going to say



233

00:19:38,860 --> 00:19:41,300

watch movie notification.



234

00:19:41,370 --> 00:19:46,620

So here we said watch movie notification channel ID as the value here we need to pack if you need to



235

00:19:46,620 --> 00:19:53,010

add ID here to the value of this constant here watch moving notification channel ID.



236

00:19:53,400 --> 00:19:58,860

And if you're trying to copy disvalue here and we will be able to paste it here as the value of this



237

00:19:58,860 --> 00:20:03,030

constant And we are instead of the we are going to say nay.



238

00:20:03,660 --> 00:20:09,980

So make sure that these two values are actually different because this is our ID and this is the name.



239

00:20:10,320 --> 00:20:12,050

So we just put a semicolon here.



240

00:20:13,080 --> 00:20:21,230

Now that we have this instance is actually created inside our class we can go ahead and create a method



241

00:20:21,300 --> 00:20:24,270

in order to create the notification channels.



242

00:20:24,570 --> 00:20:32,100

But here instead of actually using these long winded values for example we can actually use only the



243

00:20:32,160 --> 00:20:34,170

first letter of each word.



244

00:20:34,170 --> 00:20:46,380

So for watch moving notification channel Id say W M What movie notification channel ID right or for



245

00:20:46,380 --> 00:20:53,430

this video here again we can see viage movie notification channel name.



246

00:20:53,490 --> 00:20:57,720

So as the last name we just put the whole word here.



247

00:20:57,750 --> 00:20:58,990

So its much more better.



248

00:20:59,190 --> 00:21:06,270

And it can be more Beder if you want to show this value with its name to the user because it is actually



249

00:21:06,270 --> 00:21:09,400

a user visible value.



250

00:21:09,540 --> 00:21:16,350

So let's scroll down here after this structure that we created inside this notification handler class.



251

00:21:16,590 --> 00:21:23,610

Are going to create a method and lets say that this method is actually Puplick because we are going



252

00:21:23,610 --> 00:21:26,590

to use this method from our main activity class.



253

00:21:26,610 --> 00:21:34,320

So we are meant to stay private and return type of this if it is void the name of this method is going



254

00:21:34,320 --> 00:21:40,820

to be create notification notification channel.



255

00:21:40,880 --> 00:21:46,060

And then I just put a pair of this year let's open and close this method by using these curly braces.



256

00:21:46,070 --> 00:21:52,400

So first thing inside is create notification channel Meffert we are going to create an object of type



257

00:21:52,490 --> 00:21:53,830

notification channel.



258

00:21:54,050 --> 00:22:01,140

So we going to see notification channel and the name is going to be notification channel assignment



259

00:22:01,140 --> 00:22:05,160

operator new notification channel object.



260

00:22:05,190 --> 00:22:11,340

So here we are creating a notification Tennent object and we are assigning get to this variable name



261

00:22:11,430 --> 00:22:12,950

as notification channel.



262

00:22:13,260 --> 00:22:19,650

So new ratifications are here we need to pass some arguments first we need to pass the ID.



263

00:22:19,860 --> 00:22:25,920

So I'm going to just type in your ID and it's going to find our constants here so we need to actually



264

00:22:27,180 --> 00:22:31,020

name it as watch movie notification channel.



265

00:22:31,020 --> 00:22:40,070

So the first one here is the ID come to and now you need to pass the name the name here is watch movie



266

00:22:40,070 --> 00:22:41,410

notification channel name.



267

00:22:41,420 --> 00:22:43,200

So the second one is name.



268

00:22:43,640 --> 00:22:49,160

Or we can actually just delete the idea and just with the name here comma that create a new line so



269

00:22:49,160 --> 00:22:50,740

that we can see what's going on here.



270

00:22:50,750 --> 00:22:56,870

So we passed the OED as the first document the second argument is the name and the final argument is



271

00:22:56,900 --> 00:22:58,420

going to be the importance.



272

00:22:58,430 --> 00:23:05,420

So the importance attribute is going to specify the priority of notification.



273

00:23:05,450 --> 00:23:08,070

So I'll talk more about this feature later.



274

00:23:08,150 --> 00:23:14,200

For now we need to refer first we need to refer to our notification manager instance variable.



275

00:23:14,390 --> 00:23:19,400

I notice that we haven't still initialized this variable going to initialize it later.



276

00:23:19,400 --> 00:23:25,670

Just for now just referred to our instance variable notification manager dot and here I'm going to type



277

00:23:25,670 --> 00:23:26,060

in here.



278

00:23:26,090 --> 00:23:32,240

Importance just like in here hit importance with a capital letter is we have importance high importance



279

00:23:32,240 --> 00:23:36,210

low max default mean non unspecified.



280

00:23:36,250 --> 00:23:37,700

For now let's choose default.



281

00:23:37,700 --> 00:23:43,780

I'll talk more about these other values for now just choose importance underline default.



282

00:23:43,850 --> 00:23:46,160

So let me create a new line here.



283

00:23:46,450 --> 00:23:50,070

And finally we need to put a semicolon at the end of our statement.



284

00:23:50,080 --> 00:23:54,420

So now we need to specify the attributes of what modification to.



285

00:23:54,640 --> 00:23:58,950

So I'm going to paste some lines of code here so as you can see these are the lines of code that I pasted



286

00:23:58,960 --> 00:23:59,890

here.



287

00:23:59,920 --> 00:24:07,090

First of all we actually specifying the Enable lights of the notification channel and we pass the value



288

00:24:07,090 --> 00:24:09,010

true to this method.



289

00:24:09,100 --> 00:24:13,290

So let me hold down the comment on my keyboard and then click on this method here.



290

00:24:13,330 --> 00:24:18,340

If you are using a Windows you just need to hold down the control on your keyboard and then click on



291

00:24:18,340 --> 00:24:19,380

this method.



292

00:24:19,780 --> 00:24:24,820

So here it is the main thread and here it is the documentation of this method and if you cannot access



293

00:24:24,820 --> 00:24:30,370

the documentation of this method you can easily just search for this method in Google in order to find



294

00:24:30,400 --> 00:24:32,250

the on line documentation.



295

00:24:32,560 --> 00:24:40,300

So here it says sets whether ratifications posted through this channel should display notification lights



296

00:24:40,660 --> 00:24:43,850

on devices that support this feature.



297

00:24:44,050 --> 00:24:48,380

OK so it is going to specify the notification lights.



298

00:24:48,400 --> 00:24:57,370

Let me actually close this one here and now we have this method so we have this one set light color



299

00:24:57,370 --> 00:24:58,590

color of that red.



300

00:24:58,780 --> 00:25:01,110

So it's actually self-explanatory.



301

00:25:01,480 --> 00:25:04,320

And here we have the set show badge.



302

00:25:04,330 --> 00:25:06,270

True we passed the value of this method.



303

00:25:06,370 --> 00:25:09,690

Let me actually take you to the documentation of this.



304

00:25:09,730 --> 00:25:18,460

It says sets or the ratifications posted to this channel can appear as application icon badges.



305

00:25:19,300 --> 00:25:21,280

In a launcher.



306

00:25:21,310 --> 00:25:26,450

OK so you can actually specify an icon for your notification.



307

00:25:26,690 --> 00:25:28,670

So let's close this file.



308

00:25:28,690 --> 00:25:30,750

So we passed the body of truth to this method.



309

00:25:30,760 --> 00:25:34,860

Here we have this method not an internal data set.



310

00:25:34,910 --> 00:25:41,400

Lock screen visibility notification that visibility public if asked Is this a valid reason.



311

00:25:41,410 --> 00:25:44,050

So let's take a look at this the documentation of this.



312

00:25:44,070 --> 00:25:52,930

If it is sets whether notification is posted to this channel appear on the luckiest screen or not and



313

00:25:52,930 --> 00:25:58,280

if so whether they appear in the data for.



314

00:25:58,630 --> 00:26:06,160

So here this Smurfette sets like a screen visibility is going to specify whether you can show this notification



315

00:26:06,490 --> 00:26:09,730

on the screen or not.



316

00:26:09,730 --> 00:26:11,080

So let's close this file.



317

00:26:11,380 --> 00:26:15,470

And finally we have get notification manager Meffert.



318

00:26:15,610 --> 00:26:18,720

So we haven't still called created the Smurfette.



319

00:26:18,850 --> 00:26:22,620

But here we are just calling the Smurfette in order to get the notification manager.



320

00:26:22,640 --> 00:26:28,420

Remember I told you that we haven't still initialized our notification manager instance variable.



321

00:26:28,660 --> 00:26:31,940

So here are inside this method that we are going to create later.



322

00:26:32,050 --> 00:26:37,960

We are going to initialize our notification manager and we are going to return the initialized notification



323

00:26:37,960 --> 00:26:39,780

manager object from this method.



324

00:26:40,060 --> 00:26:47,600

So it is gets much a manager that create notification channel and we just passed the notification channel.



325

00:26:47,650 --> 00:26:48,920

Object to this method.



326

00:26:49,210 --> 00:26:54,090

So after the end in curly brace of this create notification Tanel Mefford.



327

00:26:54,400 --> 00:27:00,760

Let's create a method here but here I notice that I actually declare to dismiss it as private.



328

00:27:00,790 --> 00:27:05,870

It should be public because the main activity class is going to access this method later.



329

00:27:05,950 --> 00:27:11,830

So public Woit creates a notification channel and hear it before the ending curly brace or what class



330

00:27:12,280 --> 00:27:14,040

I am going to say private.



331

00:27:14,050 --> 00:27:19,230

So now we can actually declare or dismiss it as private void or private.



332

00:27:19,230 --> 00:27:26,890

Our notification manager you need to specify the tenth value for my friend gets notification manager



333

00:27:27,190 --> 00:27:32,560

get a manager or a pair of prentices so that it's open and close this method by using the curly braces



334

00:27:33,730 --> 00:27:40,530

and inside this method we can say that if the notification manager rowdier it but that we created above



335

00:27:40,920 --> 00:27:47,460

is actually no and it is not initialized then we can open and close this if statement by using these



336

00:27:47,460 --> 00:27:51,900

curly braces we can say notification manager assignment operator.



337

00:27:52,030 --> 00:28:01,780

So we need to cast this object to our notification manager object say Get system service context that



338

00:28:02,440 --> 00:28:04,730

notification service semicolons.



339

00:28:04,790 --> 00:28:12,060

So remember I told you that by using the context class we can access the features outside of our activity.



340

00:28:12,070 --> 00:28:18,040

So here it is one example you can access the notification service by using the context select and create



341

00:28:18,100 --> 00:28:20,440

a new line so that he can see what's going on here.



342

00:28:20,470 --> 00:28:25,960

So now in this way we can initialize our notification manager opti after the end in Crilley place of



343

00:28:25,960 --> 00:28:27,200

this if statement.



344

00:28:27,250 --> 00:28:33,570

We can't just say in return notification manager vacation manager.



345

00:28:33,570 --> 00:28:40,390

So now whenever we actually call this method not get notification manager we can get the initialized



346

00:28:40,450 --> 00:28:43,580

up of up notification manager.



347

00:28:43,710 --> 00:28:53,500

OK now here it's time to create the actual notification object that you're going to post to the user's



348

00:28:53,500 --> 00:28:54,560

device.



349

00:28:54,880 --> 00:28:57,500

So if you need to create an error method for that.



350

00:28:57,910 --> 00:29:03,430

So before the ending brace of our notification handler class you are going to say Puplick.



351

00:29:03,430 --> 00:29:07,580

Again this method is public because we are going to use it later from another class.



352

00:29:07,810 --> 00:29:17,660

Public notification dot builder notification that builder This is the type and the name of them if it



353

00:29:17,660 --> 00:29:29,690

is going to be create and return watch movie notification watch movie notification and put pair apparent



354

00:29:29,680 --> 00:29:30,930

Apprentice's here.



355

00:29:32,300 --> 00:29:35,630

And we need to specify some parameters for this method.



356

00:29:35,960 --> 00:29:43,270

So it is going to be of types three and the first one is going to be three title text comma.



357

00:29:43,450 --> 00:29:44,300

Strange.



358

00:29:45,120 --> 00:29:46,150

Body Text.



359

00:29:46,320 --> 00:29:48,690

The name is but it is the name of this parameter.



360

00:29:48,930 --> 00:29:52,580

So let me create a new line here so that you can see what's going on here.



361

00:29:52,590 --> 00:29:54,060

So these are the parameters.



362

00:29:54,180 --> 00:29:57,500

This story in the title text string by the text.



363

00:29:57,720 --> 00:30:00,750

Let's open and close this method by using these curly braces.



364

00:30:00,750 --> 00:30:07,610

We can say return new We're going to create a new object of type notification that build there.



365

00:30:07,830 --> 00:30:14,640

So notification that builder Now we to some arguments the first one is the actually the context so we



366

00:30:14,640 --> 00:30:18,260

can say good application context in order to get the context.



367

00:30:18,260 --> 00:30:21,400

Comma I meant to pass the channel ID.



368

00:30:21,420 --> 00:30:22,670

That is strange.



369

00:30:22,890 --> 00:30:25,750

So we already created our channel ID.



370

00:30:25,920 --> 00:30:31,980

So the name is a watch movie notification channel ID so we can pass that value here.



371

00:30:31,980 --> 00:30:38,670

Watch movie notification channel ID.



372

00:30:38,790 --> 00:30:39,960

So here it is the ID.



373

00:30:39,960 --> 00:30:46,460

So here let me create a new line after this come or we can create a new line and we can see that we



374

00:30:46,460 --> 00:30:49,840

are actually creating a new object type notification that builder.



375

00:30:49,980 --> 00:30:57,780

Here are the arguments that we passed to the constructor get application context watch movie notification



376

00:30:57,780 --> 00:30:58,810

channel ID.



377

00:30:58,890 --> 00:31:00,540

So lets see what we are going to do next.



378

00:31:00,570 --> 00:31:03,020

So here is the object right.



379

00:31:03,260 --> 00:31:05,850

The new and here it is the whole object.



380

00:31:05,970 --> 00:31:14,160

And here we can call a method on this object like calling it an invaluable or a method maybe.



381

00:31:14,280 --> 00:31:18,590

So we can say that sits.



382

00:31:18,680 --> 00:31:19,460

So here it is.



383

00:31:19,520 --> 00:31:20,470

Here in Memphis.



384

00:31:20,470 --> 00:31:26,040

So for example we have set small icon set auto cancels set content text.



385

00:31:26,210 --> 00:31:32,840

We have the title text or we have the sets content title actually.



386

00:31:33,230 --> 00:31:33,980

So here we are.



387

00:31:34,010 --> 00:31:38,000

We call this method and we passed the title text to dismiss it.



388

00:31:38,630 --> 00:31:50,090

And that can create a new line and say that set content sits content to text so if you have the content



389

00:31:50,090 --> 00:31:57,680

title that be called before and B have the content text so the text is going to be body text to be passed



390

00:31:57,730 --> 00:32:01,200

to put the text that is again on the line.



391

00:32:01,210 --> 00:32:08,600

We can also specify an icon for our notification so we can say that set smile icon.



392

00:32:08,770 --> 00:32:14,620

So we haven't actually created an icon for notification but now I am going to show you how you can do



393

00:32:14,620 --> 00:32:14,830

that.



394

00:32:14,820 --> 00:32:16,820

So let's open the Android view.



395

00:32:17,080 --> 00:32:21,910

And if you want to know how to open the Android you just need to at the top you just need to click on



396

00:32:21,910 --> 00:32:26,770

view to Windows and then project or you can use the shortcut.



397

00:32:26,770 --> 00:32:30,200

So for Mac it is a command to one.



398

00:32:30,670 --> 00:32:33,910

So here we have this arrest folder.



399

00:32:34,000 --> 00:32:40,060

So we just need to right click on the rest folder here and we can go to New and then click on image



400

00:32:40,170 --> 00:32:43,260

asset or you can actually create a vector asset.



401

00:32:43,270 --> 00:32:45,790

But here we are going to create an image asset.



402

00:32:46,420 --> 00:32:49,540

And here we have this icon type.



403

00:32:49,540 --> 00:32:51,930

Click on this little triangle here.



404

00:32:52,550 --> 00:32:56,270

So are going to specify the type of the icon that we are going to create.



405

00:32:56,290 --> 00:32:58,240

We have the lantern icons.



406

00:32:58,240 --> 00:33:02,910

We have the action bar and tap icons and we have the notification icons.



407

00:33:02,940 --> 00:33:05,370

So just click on it and here it is.



408

00:33:05,400 --> 00:33:06,250

It is the name.



409

00:33:06,530 --> 00:33:08,490

So for the name just typing here.



410

00:33:08,560 --> 00:33:11,330

Watch underly movie.



411

00:33:11,350 --> 00:33:12,670

And we have that as a type.



412

00:33:12,670 --> 00:33:17,120

We have the image clipart the text so just choose clip art.



413

00:33:17,380 --> 00:33:21,490

And we have the clip so just click on these little Android image these clipart.



414

00:33:21,490 --> 00:33:26,550

So here this window is open for you so that you can choose an icon in say the search area.



415

00:33:26,560 --> 00:33:36,320

Just search for movie or watch or maybe movie.



416

00:33:36,330 --> 00:33:42,360

So here we have for example this one local movie movie two in box so we can actually choose this one



417

00:33:42,450 --> 00:33:43,740

movie right.



418

00:33:43,750 --> 00:33:46,530

Or movie Creation or some other icons.



419

00:33:46,540 --> 00:33:53,180

So just search for a specific icon that is actually related to your notification I just click on OK.



420

00:33:53,340 --> 00:33:54,690

Now it's 3 am.



421

00:33:54,700 --> 00:33:55,140

No.



422

00:33:55,150 --> 00:33:57,680

If you want to you can specify some attributes here.



423

00:33:57,690 --> 00:34:01,740

I just am just going to leave it as default and I'm just going to click on next.



424

00:34:01,750 --> 00:34:09,530

As you can see here it is going to create some variations of the icon we have x x HTP.



425

00:34:09,790 --> 00:34:16,150

So this icon is going to be used for more now actually high quality resolutions devices.



426

00:34:16,150 --> 00:34:19,340

We have a switch the CPI HTP and NDP.



427

00:34:19,480 --> 00:34:25,380

So these are the icons that are going to be created and your app according to the device that your appearance



428

00:34:25,450 --> 00:34:32,980

on is going to actually take automatically the specific icon that is actually suitable for that device



429

00:34:33,370 --> 00:34:35,000

and just click on x.



430

00:34:35,020 --> 00:34:40,150

So here again you can see that it's going to actually specify the location that your icon is going to



431

00:34:40,150 --> 00:34:42,380

be saved inside the tribal folder.



432

00:34:42,730 --> 00:34:46,170

And here just don't change anything just click on the image.



433

00:34:46,270 --> 00:34:52,540

Now inside destroy Bill folder we have our motto watch underline movie the P.A. we have four images



434

00:34:52,950 --> 00:34:56,870

STPI and x and x x x.



435

00:34:57,160 --> 00:35:05,470

So inside the practices of these sets smart I can MFL it because they are taught bell that watch underline



436

00:35:05,470 --> 00:35:06,170

movie.



437

00:35:06,540 --> 00:35:06,890

OK.



438

00:35:06,910 --> 00:35:10,530

So let me double click on the step in order to make this area wider.



439

00:35:10,870 --> 00:35:16,520

And the next attribute that we want to specify is that sets or to cancel.



440

00:35:16,990 --> 00:35:19,930

And we want to pass the truth to the Smurfette.



441

00:35:19,960 --> 00:35:25,320

So here let's click on the set of the handsome effort in order to see the documentation of this if it



442

00:35:25,330 --> 00:35:32,030

says make this if a notification automatically dismissed when the user touches it.



443

00:35:32,140 --> 00:35:34,620

So we just pass the value true to the Smurfette.



444

00:35:34,770 --> 00:35:36,090

Let me close this file.



445

00:35:37,490 --> 00:35:40,530

And if you want to you can specify some other attributes.



446

00:35:40,610 --> 00:35:43,700

So you just need to put that in here.



447

00:35:43,700 --> 00:35:46,680

For example we have some other attributes or methods.



448

00:35:46,940 --> 00:35:51,430

For example we have an action you can add an action to this.



449

00:35:51,920 --> 00:35:57,460

But if vacation add extras add person extend such actions.



450

00:35:57,710 --> 00:36:07,260

We have set badge icon typeset category so lots of for example set color set colorized set content intent.



451

00:36:07,280 --> 00:36:15,830

So in order to see how this fits works you need to actually search for these methods in Google or in



452

00:36:15,830 --> 00:36:21,350

order to find them in for example in stack overflow which is a great Web site if you want to find solutions



453

00:36:21,350 --> 00:36:22,960

for your apps.



454

00:36:23,180 --> 00:36:28,560

Or you can just read the documentation and you don't have to read always read the documentation.



455

00:36:28,760 --> 00:36:33,960

But for example I'm going to show you an example for example set action right.



456

00:36:33,970 --> 00:36:38,470

For example set action for our notification.



457

00:36:38,480 --> 00:36:40,270

So we need to open the Google.



458

00:36:40,490 --> 00:36:42,080

So let me open the web browser.



459

00:36:42,080 --> 00:36:47,550

So here inside the search area we can't say set action.



460

00:36:47,820 --> 00:36:48,310

OK.



461

00:36:48,560 --> 00:36:50,980

Notification not the fixation.



462

00:36:50,990 --> 00:36:56,420

So you just need to put some important keywords inside the search area notification and right.



463

00:36:56,630 --> 00:36:57,330

That's it.



464

00:36:57,330 --> 00:36:59,510

I just to a person on my keyboard.



465

00:36:59,810 --> 00:37:06,770

So here we have a stack overflow post and we here we have the official word and documentation notification



466

00:37:06,770 --> 00:37:07,720

that builder.



467

00:37:07,970 --> 00:37:09,050

So I'm just going to click on it.



468

00:37:09,050 --> 00:37:15,030

So here it is the android documentation and inside its documentation I'm going to search for a method.



469

00:37:15,260 --> 00:37:20,190

So I'm just going to hold down the command on my keyboard and then press on the leader on my keyboard.



470

00:37:20,390 --> 00:37:25,370

And if you are using a Windows machine you just need to hold down the control key on your keyboard and



471

00:37:25,370 --> 00:37:27,600

then present the letter F key on your keyboard.



472

00:37:27,830 --> 00:37:31,490

So I'm going to search for a method set actions.



473

00:37:31,760 --> 00:37:33,240

So take a look at this Meffert.



474

00:37:33,290 --> 00:37:39,440

It has altered the complete list of actions attached to this notification.



475

00:37:39,890 --> 00:37:47,200

So by using the Smurfette we can actually alter the actions but in order to alter the action first you



476

00:37:47,240 --> 00:37:50,320

need to add an action to your notification.



477

00:37:50,480 --> 00:37:56,060

So if I actually scroll to the top here you can see it's public if it's the first one is an action and



478

00:37:56,060 --> 00:37:59,900

this action exits and accepts some arguments.



479

00:37:59,900 --> 00:38:06,350

The icon which is of the integer char sequence which is actually the title it is actually the same to



480

00:38:06,440 --> 00:38:08,200

the string data type.



481

00:38:08,360 --> 00:38:11,930

And we have the pending intent intent this method.



482

00:38:11,930 --> 00:38:19,170

It is actually deprecated in API level 23 and it says use an action action.



483

00:38:19,190 --> 00:38:25,760

So if we have this method of action that accepts notification that action action and an action to this



484

00:38:25,760 --> 00:38:26,300

notification.



485

00:38:26,300 --> 00:38:28,130

So I'm just going to click on this Mefford.



486

00:38:28,430 --> 00:38:34,400

So here it says notification that builder at action it is an action to these notifications actions are



487

00:38:34,400 --> 00:38:40,320

typically displayed by the system as a button Aitcheson to the notification content.



488

00:38:40,520 --> 00:38:42,350

Every action must have an icon.



489

00:38:42,380 --> 00:38:49,930

So notice that it says must have an icon first to be square and matching the holo dark action bar visuals.



490

00:38:49,940 --> 00:38:57,290

So it is actually a hint or for you or me or actually a tip for you so that you can actually specify



491

00:38:57,290 --> 00:39:05,090

the design of your app and it has a textual label and appending intent or notification in its expanded



492

00:39:05,090 --> 00:39:10,460

form can display up to free actions from left to right in order.



493

00:39:10,460 --> 00:39:17,900

The other added actions will not be displayed when the notification is collapsed however so be sure



494

00:39:18,170 --> 00:39:23,900

that any essential functions may be accessed by the user in some other way.



495

00:39:23,900 --> 00:39:29,230

For example in the activity pointed to by content intent.



496

00:39:29,480 --> 00:39:31,230

So here it is the method.



497

00:39:31,670 --> 00:39:36,670

And lets actually click on this pending content and see what is this pending intent.



498

00:39:36,710 --> 00:39:41,170

So you can I should read the documentation of this pending intent and see what is the spending intent.



499

00:39:41,490 --> 00:39:46,300

And by the way in the next story only the next application that we are going to build in this course



500

00:39:46,670 --> 00:39:51,470

we are going to learn more about pending intent and how to add an action to our identifications.



501

00:39:51,680 --> 00:39:57,160

But for this notification channel I'm just going to show you how it is implemented for Android.



502

00:39:57,200 --> 00:40:00,420

So now let's go back to android studio here.



503

00:40:00,650 --> 00:40:09,050

So it's enough for these attributes again if you want to you can specify some other actions or for example



504

00:40:09,050 --> 00:40:13,940

attributes for your ratification but for our application it's you know finally we just put a semicolon



505

00:40:13,940 --> 00:40:20,760

at the end of our statement said although he has said and done so let me add these spaces here.



506

00:40:20,840 --> 00:40:27,860

And the final method that we are going to create inside our notification handler class is called notify



507

00:40:27,860 --> 00:40:29,020

the user.



508

00:40:29,270 --> 00:40:36,020

So after the end in curly brace of our Meffert create and return watch moving notification I am going



509

00:40:36,020 --> 00:40:45,880

to say again Voyt notify notified the user and then pull up her refracts this year we are going to specify



510

00:40:46,140 --> 00:40:54,690

some parameters what this method the first trimester is going to be of type integer so int ID karma



511

00:40:55,580 --> 00:41:04,710

or can say notification ID it's more meaningful notification Id come up notification that builder notification



512

00:41:04,710 --> 00:41:11,120

that builder and here the name is going to be notification builder situation.



513

00:41:12,410 --> 00:41:12,930

BUILDER.



514

00:41:12,950 --> 00:41:16,350

So just open and close the Smurfit by using these curly braces.



515

00:41:16,730 --> 00:41:18,520

Let's create a new line here.



516

00:41:20,150 --> 00:41:21,660

So now inside is Smurfette.



517

00:41:21,710 --> 00:41:31,470

So inside this method we are going to say get notification manager that notify notify.



518

00:41:31,480 --> 00:41:33,720

So first we need to pass the ID.



519

00:41:33,880 --> 00:41:42,030

We have the ID here we say notification Id come on and we need to pass the actual notification optics.



520

00:41:42,210 --> 00:41:44,970

So we have the notification builder here.



521

00:41:45,330 --> 00:41:47,160

So we say notification



522

00:41:49,970 --> 00:41:53,040

dot dot dot.



523

00:41:53,580 --> 00:42:00,030

So there reason we say notification builder here you are referring to the argument that built this build



524

00:42:00,030 --> 00:42:03,150

Meffert is going to return an object of type notification.



525

00:42:03,180 --> 00:42:09,420

So it's very important that we call the Budiman fit and this notification builder and we are going to



526

00:42:09,420 --> 00:42:14,100

see how it is implemented and how we can use this method in order to notify the user.



527

00:42:14,220 --> 00:42:17,910

But for now we need to implement this method like this.



528

00:42:17,910 --> 00:42:24,620

Now I think our class is done notification handler is actually finished now we need to go into that



529

00:42:24,670 --> 00:42:27,120

into the main activity class.



530

00:42:27,120 --> 00:42:29,450

So lets go and say this man I think the class here.



531

00:42:29,460 --> 00:42:32,030

So lets first run the application



532

00:42:34,850 --> 00:42:37,880

and here you can see that the app is running on the simulator.



533

00:42:38,030 --> 00:42:42,910

So we have an edit text here and we have two buttons right.



534

00:42:42,920 --> 00:42:47,360

First let's create an ID takes inside our main activity class.



535

00:42:47,360 --> 00:42:55,120

So lets say that we have private text and the name is going to be EDT.



536

00:42:55,220 --> 00:42:58,080

Watch movie semicolon.



537

00:42:58,510 --> 00:43:04,920

So now we need to go inside and create Meffert and we can say it it imma watch movie assignment operator.



538

00:43:05,050 --> 00:43:10,090

So here we don't cast to and edit text objects anymore.



539

00:43:10,420 --> 00:43:15,150

Before we had to manually just put up refractors and say edit text right.



540

00:43:15,190 --> 00:43:16,880

This is not necessary anymore.



541

00:43:16,900 --> 00:43:27,190

In the newest version of Android studio we can just say find the ID artist Id that EDT to watch movie



542

00:43:27,430 --> 00:43:29,260

semicolon OK.



543

00:43:29,590 --> 00:43:35,960

We also have two buttons post notification for movie and settings for movie notification.



544

00:43:36,220 --> 00:43:42,400

So we don't have to create a variable for a pattern and then initialize are valuable because we just



545

00:43:42,400 --> 00:43:48,860

want to make these buttons just listeners for the users clicks or taps.



546

00:43:49,090 --> 00:43:55,880

So we just say inside this and create method we just say find the way Id are that Id dot between.



547

00:43:56,170 --> 00:44:03,610

So for example we have this a billion watch movie that sets on click listener and we just pass the context



548

00:44:03,610 --> 00:44:07,070

which is this main activity that this.



549

00:44:07,600 --> 00:44:11,460

And we also have this one sentence for movie notification.



550

00:44:11,470 --> 00:44:25,440

So again we say find we will find the ID are taught ID dots between movie settings that set on click



551

00:44:25,440 --> 00:44:30,030

listener main activity that's this.



552

00:44:30,420 --> 00:44:39,810

And finally this main activity class must implement the IView dot on a quick lesson or interface and



553

00:44:39,960 --> 00:44:45,700

inside the class we need to override the on if it.



554

00:44:45,770 --> 00:44:47,300

So now the error is gone.



555

00:44:47,300 --> 00:44:50,140

And inside is actually effect let's create a switch statement.



556

00:44:50,150 --> 00:44:59,450

And let's switch between the values of the ID of the of view argument that is actually clicked inside



557

00:44:59,450 --> 00:45:00,620

the switch statement.



558

00:45:00,620 --> 00:45:11,420

We can we can have case that ID that PTEN watch movie Colan break and we have case on that idea that



559

00:45:11,600 --> 00:45:15,570

PTEN movie settings Colan break.



560

00:45:15,790 --> 00:45:22,450

OK so now we need to create some instance variables inside our main activity class.



561

00:45:22,520 --> 00:45:31,700

So let me create a comment ins and outs of variables Swon is going to be private and the name is going



562

00:45:31,700 --> 00:45:33,870

to be notification handler.



563

00:45:34,010 --> 00:45:39,770

So it is actually offtake notification handler handler and the name is that a vacation handler cynical.



564

00:45:39,770 --> 00:45:42,250

So this is the class that we created ourselves.



565

00:45:42,370 --> 00:45:48,950

When it going inside is uncreate Mefford and initialize this notification handler so assignment operator



566

00:45:49,400 --> 00:45:56,850

new notification handler and we need to pass the context which is going to be main activity that this



567

00:45:57,200 --> 00:45:58,880

OK semicolon.



568

00:45:59,370 --> 00:46:06,780

We also need to create an ID for the not reputation that we want to post to the users device.



569

00:46:06,780 --> 00:46:10,950

Notice that inside this notification handler class let me open it.



570

00:46:11,160 --> 00:46:13,620

We have an ID for that channel.



571

00:46:13,850 --> 00:46:14,630

OK.



572

00:46:14,940 --> 00:46:19,850

But inside the main activity class we want to have an ID for the notification.



573

00:46:20,130 --> 00:46:25,710

So if you are going to have two kinds of IDS the first kind is for that channel which is called Channel



574

00:46:25,710 --> 00:46:26,560

ID.



575

00:46:26,580 --> 00:46:29,890

The second one is notification ID.



576

00:46:29,940 --> 00:46:41,820

So inside its main activity class here I am going to say private static final INT and the name is going



577

00:46:41,820 --> 00:46:52,550

to be watch movie for each other like movie underline notification underline ID.



578

00:46:52,830 --> 00:46:58,070

OK not a challenge Id is the notification ID assignment operator.



579

00:46:58,060 --> 00:47:00,980

So it is like teacher and it must be a unique value.



580

00:47:01,000 --> 00:47:04,330

So just pass the value of 1000 to this constant.



581

00:47:04,330 --> 00:47:09,700

It doesn't really matter what value you assign to this constant but it must be unique.



582

00:47:09,700 --> 00:47:11,490

It has to be a unique value.



583

00:47:11,500 --> 00:47:20,620

Now we need to create a method called Post notification to users device and also inside this main activity



584

00:47:20,620 --> 00:47:30,010

class before the end in place of our main analytical s.a.a to say private voit and the name is going



585

00:47:30,010 --> 00:47:38,660

to be post notification to use your device and then put a pair of practices here so you know you're



586

00:47:38,750 --> 00:47:42,540

going to specify some parameters for this method.



587

00:47:42,950 --> 00:47:54,990

The first one is going to be in and the name is going to be notification I.D. notification ID comma



588

00:47:55,110 --> 00:48:02,120

and the second parameter is going to be off the strange and the name is going to be title text.



589

00:48:02,220 --> 00:48:08,690

So just open and close this method by using these curly braces inside the Smurfette to create a switch.



590

00:48:08,700 --> 00:48:16,400

They can switch and switch notification ID so just open and close the switch statements by using these



591

00:48:16,400 --> 00:48:17,310

curly braces.



592

00:48:17,570 --> 00:48:26,700

And we a case and as you can see inside this class we created an ID name as a watch moving notification



593

00:48:26,700 --> 00:48:27,380

ID.



594

00:48:27,750 --> 00:48:33,810

So we were going to see such moving notification Id call and if the ID of notification is watch moving



595

00:48:33,810 --> 00:48:37,790

notification ID then we can't say so before this.



596

00:48:37,790 --> 00:48:44,010

So it's they meant inside this post notification to use a device we need to create a local variable



597

00:48:44,700 --> 00:48:47,870

as a type a notification that builder.



598

00:48:48,090 --> 00:48:54,680

So they've been here notification that builder and the name is going to be notification there.



599

00:48:55,140 --> 00:49:00,240

And then initially we are going to assign the value gnarl to these local but semicolon.



600

00:49:00,840 --> 00:49:05,320

So we say case watch moving notification Id break.



601

00:49:05,400 --> 00:49:11,100

So let's go inside this case and let's say we just need to refer to our notification law litigation



602

00:49:11,100 --> 00:49:15,340

builder local variable and we're going to initialize it in this way.



603

00:49:15,450 --> 00:49:22,740

We have a variable on an instance variable named as notification handler right inside our main activity



604

00:49:22,740 --> 00:49:26,840

class here and we initialized it inside our uncreate method.



605

00:49:27,060 --> 00:49:36,010

So we're meant to refer to this notification handler instance variable not create and return watch moving



606

00:49:36,010 --> 00:49:40,870

notification so that we create a new line so that we can see what's going on here.



607

00:49:41,170 --> 00:49:45,370

So we need to pass some arguments to disprove it.



608

00:49:45,370 --> 00:49:52,300

Let me call this method again so that you can see what are the arguments that we're going to pass this.



609

00:49:52,540 --> 00:49:58,430

The first one is the title text and the second argument is going to be body text.



610

00:49:58,450 --> 00:50:02,650

So the for the title text we can say hateful text.



611

00:50:02,650 --> 00:50:09,400

So we already are dismembered posts santification to use a device has applied picture of type string



612

00:50:09,400 --> 00:50:13,130

and his name is title text so we just passed the title text to the Smurfette.



613

00:50:13,170 --> 00:50:14,450

Come on.



614

00:50:14,890 --> 00:50:16,560

And we have the body text.



615

00:50:16,600 --> 00:50:23,170

So the politics can be anything we can say for example of watch movie or this is a great movie.



616

00:50:23,170 --> 00:50:32,050

This is a great movie you can put whatever values that you want here.



617

00:50:32,080 --> 00:50:34,100

So just put a semicolon at the end of your statement.



618

00:50:34,160 --> 00:50:37,730

So after these suits they spent here.



619

00:50:37,790 --> 00:50:39,120

We have this ending.



620

00:50:39,140 --> 00:50:41,210

This is the end in curly brace of the sweet statement.



621

00:50:41,270 --> 00:50:47,790

After this any curly brace I am still inside this post notification to use a device Meffert and going



622

00:50:47,850 --> 00:50:59,090

to create to create an if statement so if notification builder is not equal to Knol or an invalid value



623

00:51:00,110 --> 00:51:01,410

this is not right.



624

00:51:01,410 --> 00:51:09,600

If it is not equal to all and this is actually the notification builder has a valid value then we can



625

00:51:09,600 --> 00:51:17,460

notify the user then we can say notification handler I am referring to my instance variable notification



626

00:51:17,460 --> 00:51:21,480

handler that notify the user.



627

00:51:21,690 --> 00:51:24,110

So we need to pass some arguments to this method.



628

00:51:24,330 --> 00:51:27,430

The first one is going to be the notification by D.



629

00:51:27,510 --> 00:51:32,340

So I want to say watch movie notification ID so it is capitalized.



630

00:51:32,340 --> 00:51:34,630

Watch movie notification Id come on.



631

00:51:35,040 --> 00:51:37,910

And finally 10:22 notification bill there.



632

00:51:38,220 --> 00:51:43,830

So we just passed the notification bill that we created inside site is post notification to user device



633

00:51:44,310 --> 00:51:45,170

Mefford.



634

00:51:45,610 --> 00:51:51,430

OK so this is the implementation of our post notification to use the device method.



635

00:51:51,450 --> 00:51:54,240

So here let me show you the emulator.



636

00:51:54,240 --> 00:51:59,370

So for example the use type something inside type something inside is added text.



637

00:51:59,400 --> 00:52:05,560

For example the name of the movie for example Star Wars right.



638

00:52:06,030 --> 00:52:12,950

And here the user clicks or taps on this post notification for movie bottom.



639

00:52:13,050 --> 00:52:16,050

You want something to happen so let's go back to the studio.



640

00:52:16,530 --> 00:52:23,640

And so does Uncle Smurfette in this case a statement or the idea that between the watch movie case we're



641

00:52:23,700 --> 00:52:28,130

going to say post notification to use their device.



642

00:52:28,130 --> 00:52:29,620

We're calling this method.



643

00:52:29,610 --> 00:52:32,170

So first we need to pass the notification ID.



644

00:52:32,520 --> 00:52:38,790

We already created the notification device moving notification Id come on and we need to pass this the



645

00:52:38,880 --> 00:52:40,160

total text.



646

00:52:40,350 --> 00:52:46,540

So we want the title IX to be the text of the text so we just refer to our editrix object.



647

00:52:46,560 --> 00:52:52,510

EDT provides movie that get mixed dots.



648

00:52:52,530 --> 00:52:57,930

This is very important to think Mini-Cooper converted to a string value because they get text Leffert



649

00:52:58,710 --> 00:53:01,560

returns an object of type editable.



650

00:53:01,560 --> 00:53:07,350

So if you want to learn more about this you can actually take a look at the documentation or you can



651

00:53:07,350 --> 00:53:11,590

just click on this get text message hold on the comment on your keyboard and then click on this get



652

00:53:11,630 --> 00:53:12,610

text Meffert.



653

00:53:12,720 --> 00:53:17,080

If youre using a Windows machine you can actually take a look at.



654

00:53:17,160 --> 00:53:21,810

You can hold the control key and then click on this Meffert you know that it actually takes a look at



655

00:53:21,810 --> 00:53:26,590

the implementation of this mephitic and see that the return type of this method is actually editable.



656

00:53:26,790 --> 00:53:28,010

So let me click.



657

00:53:28,120 --> 00:53:29,340

Close this file.



658

00:53:29,700 --> 00:53:31,440

Now let me create a new line here.



659

00:53:31,440 --> 00:53:36,300

So let's run tiap let's run the app and let's see what happens.



660

00:53:36,720 --> 00:53:40,440

Let me show you the emulator so I'm going to enter the name of the movie.



661

00:53:40,740 --> 00:53:47,490

So the name of the movie is for example Star Wars and I'm going to click on this post notification for



662

00:53:47,490 --> 00:53:48,000

the movie.



663

00:53:48,030 --> 00:53:54,660

So as you can see here it doesn't create a notification of for our Android application.



664

00:53:54,660 --> 00:53:57,180

So there is a bug inside our app.



665

00:53:57,360 --> 00:53:57,940

OK.



666

00:53:58,200 --> 00:53:59,540

We need to find the park.



667

00:53:59,910 --> 00:54:01,470

There are two ways to find the park.



668

00:54:01,470 --> 00:54:08,190

You can use the debugging tools or you can actually just simply take a look at your node notification



669

00:54:08,190 --> 00:54:15,110

handler class and say this notification handler class you can see that we have this method in our grey



670

00:54:15,110 --> 00:54:15,960

color.



671

00:54:16,260 --> 00:54:22,160

If I hover over this if it says Meffert create notification channel is never used.



672

00:54:22,170 --> 00:54:27,030

This means that we haven't called this method from anywhere.



673

00:54:27,270 --> 00:54:31,620

We need to call this create artificial channel so that notification channel is created.



674

00:54:31,630 --> 00:54:38,540

Remember I told you that for Android 8 or audio we must create a notification channel.



675

00:54:38,710 --> 00:54:40,130

Otherwise it doesn't.



676

00:54:40,170 --> 00:54:43,860

It's not going to create a notification for the user device.



677

00:54:44,280 --> 00:54:46,400

So we need to call the notification.



678

00:54:46,470 --> 00:54:54,000

Vinita call the Create vacation channel inside a constructor of this notification handler class.



679

00:54:54,180 --> 00:55:02,350

So after calling the super constructor we are going to say create notification turnon that's it.



680

00:55:02,360 --> 00:55:05,510

Now we can run the application.



681

00:55:05,590 --> 00:55:07,080

Let me show you the emulator.



682

00:55:07,240 --> 00:55:12,750

So inside these edits I'm going to just step in here Star Wars.



683

00:55:12,920 --> 00:55:16,570

Now I'm going to click on this post notification for a movie.



684

00:55:16,850 --> 00:55:20,000

As you can see there was a sad.



685

00:55:20,140 --> 00:55:21,810

I think you heard the sound.



686

00:55:21,950 --> 00:55:28,420

And we have the notification here if I show you the notifications you can see that it says Star Wars.



687

00:55:28,550 --> 00:55:31,070

You can see this movie icon.



688

00:55:31,070 --> 00:55:35,190

This is the name of the app and it says this is a great movie.



689

00:55:35,390 --> 00:55:36,460

Right.



690

00:55:36,470 --> 00:55:40,290

So now I want to talk about this one.



691

00:55:40,290 --> 00:55:45,920

These settings for the movie notification if you want to make this one work so that whenever the user



692

00:55:45,920 --> 00:55:54,570

clicks on this button it's going to open up the settings application of the user's device and it's going



693

00:55:54,570 --> 00:56:00,390

to open the settings page for this application for this notification actually.



694

00:56:00,680 --> 00:56:06,390

So each application has a notification settings.



695

00:56:06,620 --> 00:56:08,360

So let me tell you that.



696

00:56:08,480 --> 00:56:14,440

Let me show you the application So for example we have this app in C at right e-filed launch.



697

00:56:14,660 --> 00:56:22,970

Click this app or if I select and hold this up for a moment here as you can see I just alone clicked



698

00:56:23,030 --> 00:56:23,600

this app.



699

00:56:23,690 --> 00:56:28,390

And as you can see it this app actually let all the dialog is opened.



700

00:56:28,400 --> 00:56:30,190

For us it is Star Wars.



701

00:56:30,200 --> 00:56:35,930

This is the great movie notifications if we click on it here if we click on this notifications as you



702

00:56:35,930 --> 00:56:37,250

can see nothing happened.



703

00:56:37,250 --> 00:56:39,190

But it is app info.



704

00:56:39,310 --> 00:56:45,380

If I click on this app info you can see this is our application so you can open your settings application



705

00:56:45,380 --> 00:56:52,220

inside your app inside your device and then click on settings and then click on the apps and then you



706

00:56:52,220 --> 00:56:58,640

can see for example your apps there if we click on a specific application you can see up activity like



707

00:56:58,640 --> 00:57:01,160

this one on Istar for stop.



708

00:57:01,310 --> 00:57:03,440

And here we have app notifications.



709

00:57:03,440 --> 00:57:09,830

If I click on it you can see it is on the notification is on if I actually make this up.



710

00:57:09,970 --> 00:57:15,380

It's going on notifications for this application is going to be off and it's not going to create notifications



711

00:57:15,380 --> 00:57:17,370

for this application.



712

00:57:17,960 --> 00:57:20,780

And here we have the categories right.



713

00:57:20,960 --> 00:57:23,670

Darby You m in C name.



714

00:57:24,050 --> 00:57:29,110

So if I click on it this is the notification channel the category's is the channel.



715

00:57:29,210 --> 00:57:33,990

If I click on this one here you can see the attributes of our channel.



716

00:57:34,100 --> 00:57:40,790

So if we go into this android studio you can see if like when we created the notification turned on



717

00:57:40,790 --> 00:57:43,930

here you can see these attributes that we specify here.



718

00:57:43,930 --> 00:57:47,060

So for example the id the name the importance.



719

00:57:47,180 --> 00:57:51,410

So here you can see that it says the importance is high it make sound.



720

00:57:51,410 --> 00:57:54,140

We have urgent medium low.



721

00:57:54,350 --> 00:58:02,290

So I just use the default so the default is high on it and it does create a sound like select this one



722

00:58:02,360 --> 00:58:11,880

urgent make sound and pop on a screen so that if this one let's go back go back and back.



723

00:58:11,900 --> 00:58:19,040

So let's open our application let's this time just change the name of the movie to for example mask



724

00:58:20,680 --> 00:58:26,530

and let's click on post notification for a movie as you can see the sound and there that a vacation



725

00:58:26,530 --> 00:58:27,520

pops on the screen.



726

00:58:27,580 --> 00:58:30,090

This is a great movie right.



727

00:58:30,190 --> 00:58:32,360

So let's.



728

00:58:32,370 --> 00:58:41,110

So here I created this spot here in order to guide the user directly to the citizens of this specific



729

00:58:41,110 --> 00:58:46,870

notification channel so that the user can actually just easily change the settings.



730

00:58:46,870 --> 00:58:52,480

For example change the importance or whatever that is related to this channel.



731

00:58:52,870 --> 00:58:54,960

But here are there is an exception here.



732

00:58:55,030 --> 00:59:01,790

Here I want to show you that when you code it in notification channels for example here we specified



733

00:59:01,810 --> 00:59:02,070

there.



734

00:59:02,070 --> 00:59:06,340

Watch the importance to be default for this notification.



735

00:59:06,370 --> 00:59:07,160

Right.



736

00:59:07,390 --> 00:59:13,570

But when the app runs and when you create the notification then of which if it actually for example



737

00:59:13,570 --> 00:59:18,430

changed this importance default to importance to low.



738

00:59:18,440 --> 00:59:19,140

So let's change it.



739

00:59:19,130 --> 00:59:24,690

Importance to for example here is not going to affect how our notification of this apple.



740

00:59:24,710 --> 00:59:30,170

So let's run the app because if we changed the settings in say the settings of the notification.



741

00:59:30,170 --> 00:59:37,580

So for example let's give it a name for example against Starforce and ask recomposed not a vacation.



742

00:59:37,620 --> 00:59:40,940

As you can see now this notification pops on the screen.



743

00:59:40,950 --> 00:59:48,720

But here I sit important slow so it doesn't affect how or how our notification works when you change



744

00:59:48,750 --> 00:59:50,630

the settings inside the settings.



745

00:59:50,640 --> 00:59:58,160

Activity of this notification that specific settings is what matters here.



746

00:59:58,340 --> 00:59:59,380

OK.



747

00:59:59,970 --> 1:00:05,370

When you change the code it doesn't affect it because the user has already changed the settings of the



748

1:00:05,370 --> 1:00:08,250

notification inside the settings application.



749

1:00:08,250 --> 1:00:15,900

So here we want to create a way for the user to access the notifications directly by just clicking on



750

1:00:15,900 --> 1:00:16,610

the spot.



751

1:00:17,010 --> 1:00:21,990

Let's scoot into our Android studio and let's go inside the main activity class and let's see how we



752

1:00:21,990 --> 1:00:22,950

can do that.



753

1:00:22,970 --> 1:00:23,300

OK.



754

1:00:23,310 --> 1:00:25,260

So inside is main activity class.



755

1:00:25,260 --> 1:00:26,700

Let's scroll down here.



756

1:00:26,730 --> 1:00:30,860

So before the end in curly brace our main activity class we are going to create a method.



757

1:00:31,110 --> 1:00:37,680

So it is going to be private and that the return type is going to be void in name is going to be open



758

1:00:38,370 --> 1:00:46,340

notification notification settings.



759

1:00:46,430 --> 1:00:51,710

What movie channel.



760

1:00:51,920 --> 1:00:57,620

So let's put up pair of here and let's provide a privater of types 3:47.



761

1:00:57,690 --> 1:01:09,020

So it is going to be a tape strange and the name is going to be watch movie channel.



762

1:01:09,230 --> 1:01:12,890

So let's open and close this method by using these curly braces.



763

1:01:13,550 --> 1:01:19,700

So here first we need to create an intense object so intent and the name is going to be set Henning's



764

1:01:20,150 --> 1:01:30,360

intent assignment operator new intent to specify the type of the settings activity that we want to open.



765

1:01:30,380 --> 1:01:34,730

We want to open the notification settings for the watch movie channel.



766

1:01:34,760 --> 1:01:35,440

Right.



767

1:01:35,510 --> 1:01:46,430

So we're going to say cities with capital S dot on here we need to specify the type of the activity



768

1:01:46,850 --> 1:01:49,380

settings the activity that we want to open.



769

1:01:49,400 --> 1:01:53,720

The name is action.



770

1:01:53,880 --> 1:02:01,230

So I'm going to just type it he had manually action underly channel action on the line



771

1:02:04,190 --> 1:02:07,500

channel notification settings.



772

1:02:07,850 --> 1:02:10,570

So this is the type of activity that we want to open.



773

1:02:10,730 --> 1:02:12,940

Action channel notification settings.



774

1:02:13,100 --> 1:02:22,510

But we must specify that we want to open the notification channel of the watch movie actually channel.



775

1:02:22,670 --> 1:02:27,210

So if we are going to specify some extras for this intent.



776

1:02:27,420 --> 1:02:34,560

So first we're going to send the package the package name of our application to this intent because



777

1:02:34,560 --> 1:02:41,550

you want to specify that this is our application and we want to open the notification channel for our



778

1:02:41,550 --> 1:02:42,660

own application.



779

1:02:42,870 --> 1:02:48,400

So we are going to say setting's intent that puts extra.



780

1:02:48,550 --> 1:02:57,880

And here we need to specify the name or the key into say sittings with capital as that extra package



781

1:02:58,540 --> 1:03:04,490

come on and we need to send the value into past the actual value.



782

1:03:04,510 --> 1:03:07,240

So if you're going to just say just package any



783

1:03:10,350 --> 1:03:20,820

package simply call the Vini to send and other extras going to the settings intent that put extra sittings



784

1:03:22,000 --> 1:03:26,690

settings that extra channel Id come on.



785

1:03:26,710 --> 1:03:33,130

So here we already created a prime meter for this watch movie channel ID.



786

1:03:33,160 --> 1:03:37,440

So let's change the name of this primetime to watch movie channel ID.



787

1:03:37,780 --> 1:03:42,210

And then here we just need to pass it as an argument to this put extra effort.



788

1:03:42,220 --> 1:03:52,180

So we just say watch movie channel ID and then we are going to actually say start activity and we just



789

1:03:52,180 --> 1:03:53,600

passed the internet settings.



790

1:03:53,740 --> 1:03:54,840

Intent OK.



791

1:03:55,150 --> 1:04:01,210

So now we need to scroll through it so you can see that these are created if you already created an



792

1:04:01,240 --> 1:04:06,550

unexpected close enough for this PTEN movie City movie settings button and inside this enclave we have



793

1:04:06,550 --> 1:04:09,300

a case for this one for this between movie settings.



794

1:04:09,310 --> 1:04:15,700

So we are going to just call this Meffert open notification settings for watch movie channel and we



795

1:04:15,700 --> 1:04:17,260

just need to pass the ID.



796

1:04:17,290 --> 1:04:22,390

The ID is notification handlers so we are referring to this question handler class.



797

1:04:22,570 --> 1:04:30,850

And if you remember this notification handler class we actually declared this ID as static.



798

1:04:30,850 --> 1:04:31,160

Right.



799

1:04:31,180 --> 1:04:39,430

This means that by just accessing the notification class we can access this constant because it is public



800

1:04:39,490 --> 1:04:40,580

static.



801

1:04:40,900 --> 1:04:45,020

So it is a class variable or a constant thats going to say this may not have the class.



802

1:04:45,280 --> 1:04:51,190

And here we say notification handler that I just got a token here ID and here it is the watch moving



803

1:04:51,190 --> 1:04:53,160

notification channel ID.



804

1:04:53,320 --> 1:04:57,270

So let me create a new line here so that we can see what's going on here.



805

1:04:57,460 --> 1:05:01,350

Let's run the app and let's see what's going to happen.



806

1:05:01,420 --> 1:05:03,630

So we just need to enter the name of the movie.



807

1:05:03,640 --> 1:05:10,620

So we just see Star Wars and here I'm going to first I'm going to test that positive action for movie



808

1:05:10,630 --> 1:05:11,460

works.



809

1:05:11,740 --> 1:05:12,760

So it works.



810

1:05:12,760 --> 1:05:17,630

You can see literally kind of settings for a movie for movie notification.



811

1:05:17,630 --> 1:05:21,050

And here it is the settings for this application.



812

1:05:21,090 --> 1:05:24,470

Here it is the name it is on importance.



813

1:05:24,490 --> 1:05:30,660

We have urgent high medium low and we have a vibrate.



814

1:05:30,820 --> 1:05:33,210

We have advanced notification.



815

1:05:33,700 --> 1:05:34,380

So that's it.



816

1:05:34,420 --> 1:05:37,170

Our application works fine and perfectly.



817

1:05:37,570 --> 1:05:43,390

So I think that's enough for the story all in in the next application the next tutorial we're going



818

1:05:43,390 --> 1:05:47,470

to start creating another app about notifications.



819

1:05:47,470 --> 1:05:54,540

But this time our application is going to target versions before the Android 8 or Orio.



820

1:05:55,030 --> 1:05:57,800

And you're going to see how it is implemented.



821

1:05:58,090 --> 1:06:04,330

And again if you want to create your own application inside your app you should differentiate between



822

1:06:04,750 --> 1:06:10,640

the Android API eyes before Android 8 and the Android 8 or above.



823

1:06:10,930 --> 1:06:17,530

If you want to learn about a differentiating API using Android you can actually take a look at the some



824

1:06:17,530 --> 1:06:19,960

of the applications that you have created in this course.



825

1:06:19,990 --> 1:06:27,970

The one that I remember now is the floating view application that I actually uploaded into the section.



826

1:06:28,030 --> 1:06:33,770

I think the last section of the course the name of the section is requested apps.



827

1:06:33,820 --> 1:06:35,850

So thank you very much for watching.



828

1:06:35,860 --> 1:06:41,320

If you have any questions about these concepts that I've taught you so far please post a discussion



829

1:06:41,320 --> 1:06:44,690

in the course and then I will do my best to answer all of your questions.



830

1:06:44,950 --> 1:06:47,650

And I look forward to seeing you in the next tutorial.