How to Set already running activity, when user clicks on app icon on home screen?

This is what you have to do: I need to resume to the player screen directly. ... and you can do so by following this instructions: How do I save an Android application’s state?

You may want to overrive the onRestart() method - it will be invoked if your Activity has been stopped previously; while it won't if it's the first time it runs (or if it has effectively been killed in the meantime).

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