You can call System. exit(); to get out of all the acivities.
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How to Implement Double back press to exit in flutter
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A Flutter package that allows Android users to press the back-button twice to close the app.
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“how to handle back button in webview android” Code Answer
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Whatever answers related to “flutter go back to previous screen”
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Just a simple method. Wrap Scaffold with WillPopScope widget . Show activity on this post. In this case when user will tap system back button, onWillPop callback will decide should the screen be popped or not.
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How to Handle Webview Back Button Event in Flutter?
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