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First of all I actually created an object of type intent as you can see here.



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So intent intent knew intent and here.



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And when I actually go from this main activity class to this main activity class.



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So when the user clicks on the notification I want to actually move to this main activity.



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OK.



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I can actually specify other activities but for this application I just wanted to show you how to use



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notifications and how to create and manipulate notifications.



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So it is going to be a little bit simple.



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So just a new intent and I want to actually move to this main activity class so here as you can see



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for the first argument I specified this May 9th main activity that this.



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So this is going to be the context and for the second argument I actually specified main activity that



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class.



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So this means that you want to move to this main activity class here.



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OK.



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And in line free.



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I actually created an object of type pain.



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Intent.



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OK.



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So let's actually open our web browser and let's actually go to Android documentation and see what is



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this pending intent.



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So now let's actually open our browser and here in the search bar just typing here pending intent.



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And here as you can see we have this pending intent inside this android that app package just select



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it and click on it.



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So now we are actually guided to this page.



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So as you can see here we have these pending intent class.



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This is actually a public class final class pending intent.



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OK.



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So now here is our description.



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So a description of an intent and target action to perform with it in instances of this class are created



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with good activity.



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This is actually an effort that we are going to use for our notification.



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So here as you can see it says by giving appending intent to another application you are granted get



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the right to perform the operation you have specified as if the other application was yourself.



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OK.



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With the same permissions and identity as such you should be careful about how you build the dependent



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intent almost always the base intent you supply should have the component name explicitly set to one



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of your own components to ensure it is ultimately sent there and nowhere else are pending intent itself



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is simply a reference to a token made maintained by the system described me in the original data used



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to retrieve it.



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This means that even if it's own applications process is kid is killed depended intent itself will remain



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usable from other processes that have been given it.



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If they create an application Leader Reid retrieves the same kind of paper and an intent same operations



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same intent action.



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Or categories and components and same flags it will receive appending intent representing the same token



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if it's if that is still valid and you can call cancel to remove it.



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So now let's actually look at some of the merits of this class.



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So as you can see here these are the public Moffats can sell the scrap contents equals good activities.



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And we have some of the effects of this class.



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So let's go back to our Andrex studio here.



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I want to specify that when the user clicks on the notification I want to update the current main activity.



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OK I want to actually guide the user to the current activity so I need to create this intent.



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OK so pending intent that gets activity this is actually a method that is inside of this class main



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activity that this sort of first argument is going to be the context main activity that this the second



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argument is going to be the request code.



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OK.



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That is that it's going to actually specify that this notification is actually specific only to this



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activity.



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OK.



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So we can have multiple notifications in that application so we use this request code to identify are



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not notifications so this notification has this request code number zero.



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OK.



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And the intent.



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The argument is going to be the intent.



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So to actually if we want to actually move to this activity to this main activity so I put I actually



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assigned this intent here.



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And for the last argument we need to put the spent in intent that flag updates colorant.



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So let's actually go back to what Android documentation again and here let's actually search for.



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So here I just need to hold the Comanche and then person F key on my keyboard.



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So if you are using a Windows machine you need to hold the control key and then present their key on



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your keyboard and then here I just need to type in Flag updates current update current.



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I just need to click on this flight update calendar here and as you can see we have these flight updates



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current and it says that a flag indicating that if they described pending intent already exists then



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keep it but replace its extra state of it in this new intent OK flag indicating.



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So let me actually read it again.



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Flag indicating that if they describe the painting intent already exists then keep hit but replace it's



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extra state with what is in this new intent for use with get activity.



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So as you can see here we are using these activities that activity Meffert here.



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This can be used if you are creating intense but only Dijkstra's change and don't care that any entities



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that received your previous pending intent will be able to learn it with your new extras even if they



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are not explicitly given to it.



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So here because we want to actually only move to our main activity again we can actually use this a



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flash update current and we can actually update some information in our activity.



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Okay.



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And that's the purpose of this flight update current.



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OK.



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He's going to actually keep the same intent as you can see here depending.



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Intent already exists.



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Ok then it's going to actually keep it but replace it throw it data.



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OK.



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So we may have some extra data but this can actually replace those data.



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OK.



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So if we use this flag update current and in line of 57 as you can see I called this builder that said



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content intent pending intent.



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OK.



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So here I am actually setting the content intent on this up here.



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With that said content intent and then intent I passed is pending but opinion intent.



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Object to the Smurfette and in line 59.



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I am actually creating an object of type notification manager.



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OK so notification manager.



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And then the name of this object is notification manager.



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And here I am casting this object to a notification manager object.



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And here I am calling this method get system service notification service.



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So we need to actually get the system serviced notification service.



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It is very important in order to actually create a notification in our application.



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OK.



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So notification service.



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So I am actually getting this notification service and I am assigning to this notification manager that's



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value and in length 60.



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I am calling this notification manager that notify.



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OK.



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And the first argument is going to be detach.



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So I called dispatch notify.



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OK you can call it whatever you want.



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And the second argument is client is going to be the ID of this notification manager.



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So I assign this value one hundred twenty three.



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One two three.



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And you can assign whatever value you want.



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So it is going to be an integer value.



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OK this is going to be the ID and the Fred argument is going to be the builder that built.



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So I referred to the name of this object builder and I called the Smurfit build.



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So now we need to actually Conti's Schoener to vacation Meffert in our unclick if it here.



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So here I can just type in show notification.



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So now let's run our project and see what happens.



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So now as you can see here our application is running on this emulator here.



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So now for the title of the notification I can just type in title and for the text I can just type in



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text.



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OK.



128

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So let's actually click on this button here.



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Notify me so now as you can see we have a notification.



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So let's actually right here.



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And as you can see we have this notification and the title is title and the text is text.



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And we have this icon here.



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OK.



134

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So let's see if we actually click on this notification here.



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Now we are guided again to this activity.



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And as you can see it here the the data is actually updated here as you can see because we are actually



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moving again to this activity.



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So it's going to call the uncreate method here again.



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So now as you can see the data is gone.



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OK.



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So hopefully that makes sense.



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So now as you can see if I actually click on this notify me again here without assigning a value to



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these text fields.



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So if you actually look at the notifications here now as you can see again it's actually created our



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notification here for me but without the title and the text.



146

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So I don't want to allow the application to create a notification without the title and the text.



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So here inside is main activity class.



148

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Inside is Uncle Meffert.



149

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I can actually create an if statement so if it's the content title that get text that to a strange dot



150

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matches and here inside the practices of this matches here matches Mefford I just need to put two double



151

00:09:28,190 --> 00:09:34,250

quotes and this means that if the value of this text here as you can see if the value of this Edhi text



152

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is actually empty.



153

00:09:35,960 --> 00:09:36,680

OK.



154

00:09:36,920 --> 00:09:45,310

And here let me actually create an all logical operator or EDT a content text.



155

00:09:45,320 --> 00:09:49,700

This time I referred to that with this name in it its content text.



156

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Ok that's good text that too strange that matches.



157

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OK.



158

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And here again I need to two double quotes here without assigning any value to these inside these are



159

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two double quotes.



160

00:10:06,640 --> 00:10:11,250

So I just need to open and close this statement by using these curly braces as you can see here.



161

00:10:11,500 --> 00:10:15,170

So let me create a new line here so that you can see this.



162

00:10:15,370 --> 00:10:19,960

This piece of code he had better and now I can just type in return.



163

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And this return here means do not execute this method anymore.



164

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This unclear if it anymore is going to actually break out of the Smurfit break out of the Smurfit.



165

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It's not going to execute this method anymore.



166

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Until we actually click on that button once again.



167

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OK that's the meaning of this router.



168

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It's not going to execute this short notification method.



169

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Here if this expression hit evaluates to true if one of these expressions here evaluates to true it's



170

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going to return and it's going to it's not going to execute this uncle anymore.



171

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I need to actually click on that button again in order to execute this method again.



172

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OK.



173

00:10:56,230 --> 00:10:58,370

So I put this written statement here.



174

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And if if this expression evaluates to true he's going to return and it's not going I should execute



175

00:11:03,040 --> 00:11:04,270

this line I've got here.



176

00:11:04,570 --> 00:11:06,910

So let's run our project again and see what happens.



177

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So now as you can see our application is running on the simulator.



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00:11:10,030 --> 00:11:15,340

So if I actually click on this button here again and now as you can see it's not going to actually create



179

00:11:15,430 --> 00:11:20,030

notification for me because I didn't assign a value to this text.



180

00:11:20,070 --> 00:11:21,890

Eddie texts as you can see here.



181

00:11:21,940 --> 00:11:30,370

So if I actually assign a value for the title and if I don't assign a value for the text of this notification



182

00:11:30,760 --> 00:11:35,830

and if I click on this notify me again here it's not going to create a notification for me because I



183

00:11:35,830 --> 00:11:37,690

use this or operator here.



184

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OK.



185

00:11:38,200 --> 00:11:44,830

I said that if this expression even evaluates to true or if this expression evaluates to true then it's



186

00:11:44,830 --> 00:11:47,930

going to execute this return statement and it's not going to execute.



187

00:11:47,960 --> 00:11:48,900

And I've got here.



188

00:11:49,090 --> 00:11:49,660

OK.



189

00:11:49,870 --> 00:11:56,140

So I need to actually assign a value for the content text and if I notify me and if I actually click



190

00:11:56,140 --> 00:11:59,020

on this notify me button here again.



191

00:11:59,080 --> 00:12:03,030

And as you can see here it actually created this notification for me.



192

00:12:03,070 --> 00:12:03,760

OK.



193

00:12:03,850 --> 00:12:05,100

And if I click on it again.



194

00:12:05,140 --> 00:12:08,840

Now we will be guided to this main activity class here again.



195

00:12:08,890 --> 00:12:14,320

So hopefully that makes sense and I think that's enough for this tutorial.



196

00:12:14,560 --> 00:12:19,990

So here I just wanted to show you how you can actually create on notification later in discourse of



197

00:12:19,990 --> 00:12:25,900

we will be creating a more complex application and we will be using some of these features some of these



198

00:12:25,990 --> 00:12:28,470

notification features in our application.



199

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So for now I just I just want to show you the basics of creating a notification in Android application.



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So thank you very much for watching.



201

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And if you have any questions regarding notification in Android please post the discussion in the course



202

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and then I'll do my best to answer all of your questions.



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Thank you very much for watching and I'll see you in the next year or two earlier.