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I would like to present an AdWords interstitial before the user returns to the previous page. How can I do this when the return button is pressed?
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By tapping the Android back-button (or the "pop" button) each square turns blue, one by one. Only when all squares are blue, tapping the back-button once more will return to the previous screen.
How to Execute when clicking the back button In Flutter? You can override the default back arrow on the AppBarand then specify the value you would like to return to trigger the change of the state when Navigator. pop is called.
To add custom back button in Flutter AppBar You Just need to Use Leading in AppBar and Use IconButton for leading Just like this. To add custom back button in Flutter AppBar You Just need to Use Leading in AppBar and Use IconButton for leading Just like this.
I think you can make use of WillPopScope widget. You can pass a callback function which will be called when the view is about pop. Just do whatever tasks to be completed before pop and then return true.
Example:
Future<bool> _willPopCallback() async { // await showDialog or Show add banners or whatever // then return true; // return true if the route to be popped } //then pass the callback to WillPopScope new WillPopScope(child: new Scaffold(), onWillPop: _willPopCallback) Hope that helps!
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