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So let's actually create a toast in the and put unpause Mefford so toast that make text and first of



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all we need to specify the context main activity that this come up.



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And for the second argument we need to specify the text so the text is going to be the excuse me in



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inside the double quotes the ON PAUSE Meffert is called unpause must be with lowercase.



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Oh and for the first argument we need to specify the length.



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So Len for short start show.



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OK.



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And for this is your Mefford.



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Let's actually create again a toast.



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So I'm going to actually copy this line of quote here this tossed here and then I'm going to paste it



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here.



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And for the text I'm going to just type in the and resume Meffert on resume if it is called.



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So analysis around our project here again and see what happens.



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So now as you can see our application is running and the resume effort is called.



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OK.



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So now I want to actually click on dispatch button and it says the unpause method is called.



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So whenever the on Pazz method is called I want to actually save the state of my checkbox or keep whether



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it is checked or or not checked and vent whenever the on resume if it is called or you want to actually



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to retrieve it.



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That's the it's OK whether it is checked or unchecked.



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So how can I do that.



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Inside this unpause method.



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As you can see here I'm going to paste in some lines of code here inside this unpack Smurfette and then



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I'm going to explain to you what's going on here.



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OK.



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So as you can see here these are the lines of code that I actually pasted.



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Instead it is on puzzle method.



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OK.



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So as you can see here in line 55 First of all I created an object he had of type shared preferences



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as you can see.



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So this is the shirt preferences class.



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And this is the name of the object.



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Share preferences.



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Assignment operator get preferences.



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0.



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OK.



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So I want to actually get the preferences so I need to actually call the Smurfette get preferences and



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I need to pass this number zero to the Smurfit in order to get a preference.



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So now I have the preferences in order to save the state of the checkbox OK.



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Preferences and inline 56 as you can see.



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I call this the name of this class share preferences that editor.



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So this time I want to actually create an object of type shirt preferences that editor OK I want to



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edit.



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I want to actually save some state to the memory so shall prove it says that editor editor assignment



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operator.



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And here again are you referred to the name of this object shared preferences that it.



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So now I have an editor.



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OK so now as you can see in 9:57 as you can see here I'll referred to the name of this editor object



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editor that put strange.



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And as you can see here inside this inside the practices of this Smurfette I have two arguments.



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The first one is the key checkbox text value.



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So I want to actually see the text of this or checkbox actually open or application again.



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50 as you can see here.



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Now as you can see when I checked this checkbox I want to actually end up on when the unpause method



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is actually called.



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I want to save this text to them and will be OK.



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The checkbox is checked.



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You want to save this text.



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So here that's why I actually created this line of code here.



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Editor that puts strange.



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I want to actually put this string value in the memory.



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So the key is going to be checkbox under link takes the underlying value.



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So remember that your keys always should be capitalized.



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OK inside the double quotes as you can see here.



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This is going to be a string value right.



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And for the second the argument we are going to actually save the actually the main value OK that the



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string value that you want to save to the memory.



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This is the key and this is the string by the checkbox that gettext that with string.



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So here I am actually getting the text of this checkbox.



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And here I am actually put in get into the putting this value inside the memory shared preferences editor



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that puts strange checkbox takes three new checkbox that get text to a string.



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OK.



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So here I am actually saving this state actually the text of this checkbox to the memory and inline



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58 as you can see here again I referred to the name of this editor object that put Boullion.



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So whenever they use it for example checks this checkbox as you can see now the search box is there



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to check it.



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OK.



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And this means that the value of the tick box is actually true.



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So this is a boolean value right.



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True or false.



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This is true when it's been when it is checked it is true and it is unchecked it is false.



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So I want to actually put this bullion value also inside the memory.



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I want to save this state so editor that put bullion.



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This is going to be the key checkbox value and this is going to be the main value checkbox that is checked.



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Here it is going is going to actually get the checked state of this checkbox.



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And here in line 59 you need to actually call this method instead of climate in order to save these



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values in say the memory the checkbox is checked.



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So now if I actually click on this.



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In here and the unperson if it is called Now these are actually these lines of code for example are



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executed and it's unnaturally safe these values these are the text of the checkbox and the State of



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the checkbox whether it is checked or unchecked and it's and it's going to come.



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That changes OK.



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And unless your afraid for example when the user again open this application and this on a resume if



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it is called locate in this life they want to actually to retrieve those information that is saved inside



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this unpause method.



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So how can I do that.



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So here again I'm going to actually paste in some lines of quote and then I'm going to explain to you



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what's going on here.



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So as you can see here these are the lines of code that I actually pasted here.



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So now I'm going to explain to you what's going on here.



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In-lens 71.



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Again I need to actually access the shared preferences of my application OK shows the preferences inside



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the Android to the Android device.



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I am actually actually accessing that showed preferences.



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And again I am actually calling this Meffert get preferences zero in order to access the shared preferences



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of my device an inline 72 as you can see.



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I created a boolean value of boolean value a bell and the name of this value but is checkbox value.



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OK.



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An assignment operator.



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So here you want to assign a value to this value but right checkbox value share preferences here.



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I am actually filling to the name of this object shared prevented that gets Boullion.



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So I want to get a boolean value right.



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And here as you can see inside the prentices of the Smurfette I have two arguments the first one is



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the key.



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As you can see this key is the same as this key that I actually put here in order to save this boolean



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value right checkbox value.



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And the second one is actually a default value.



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So when the application for example fails to access the shift differences.



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In some cases it can actually put the false value to this checkbox value.



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OK so 99 percent of the time it's going to actually get the value of the checkbox and it's going to



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actually keep this piece of code here.



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This false value.



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But here we need to actually put a default value or a false and in line 73.



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If we have this idea of type String checkbox string value and as you can see here assignment operator



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again I actually work through the name of this object shared preferences that gets stream.



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So you want to get a string value.



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Again as you can see we have this CI.



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So this is the same as Diski.



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In order to get this string value right.



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So a check box takes the value.



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And this is going to be strange a default value.



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So when the application fails to access the show preferences in order to access these values is going



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to assign this value to the text of the checkbox.



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This is my check works right and in line 74.



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Again I referred to the name of this checkbox object here as you can see in our main activity class



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I referred to the name of the checkbox object that said check it.



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So I want to actually specify the state of my checkbox.



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I want to actually determine whether it is going to be checked or not checked checkbox that said checked



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checkbox value as you can see here checkbox that said text checkbox string value as you can see here



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I have this thing value here.



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So it's going to assign these values to these checkbox here.



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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 our application is running on this emulator here.



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So now I want to actually check this checkbox.



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So now as you can see this box is actually checked and the text of the search box is the checkbox is



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checked.



147

00:09:04,290 --> 00:09:07,780

OK so now I want to actually click on this back button here.



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So now the application is actually destroyed from their memory and the unpause Moffit is actually called.



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00:09:13,140 --> 00:09:16,670

And again I want to open this application up for 50.



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And as you can see here this state is actually changed.



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OK.



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And the resume if it is called and we can and we actually retrieved the information the checkbox is



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checked and we can see that the actual checkbox is actually checked.



154

00:09:29,700 --> 00:09:30,670

OK.



155

00:09:31,140 --> 00:09:33,800

And now it's actually unticketed checkbox.



156

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And as you can see this text here Solas again click on this batch button here and it's actually up for



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example close this application in the background.



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And again I want to actually open this application at 50.



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And as you can see here this state is changed.



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The checkbox is not checked.



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And as you can see it is on checked right.



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So hopefully that makes sense.



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And I think that's enough for this tutorial.



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So if you have any questions please post the discussion in the course and then I'll do my best to answer



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all of your questions.



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Thank you very much for watching and I'll see you in the next tutorial.