back + flutter back How to write a double back button pressed to exit app using flutterI'm new to flutter, and I saw many android apps can exit when double press back button. The first time press back button, app shows a toast"press again to exit app". The following second press, app wono | discuss | tweet
+ flutter back How to write a double back button pressed to exit app using flutterI'm new to flutter, and I saw many android apps can exit when double press back button. The first time press back button, app shows a toast"press again to exit app". The following second press, app wono | discuss | tweet