How can I make my app usable when device is locked? Like when a timer/alarm goes off, I want it to be possible to access the entire app without unlocking the device.
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If you combine a BroadcastReceiver and an AlarmManger, this should work just fine. – Taslim Oseni May 12 '19 at 10:18
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1Thank you Taslim, that helped me, giving me something valuable search-terms. – arberg May 14 '19 at 16:20
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Here's a different question where the question doesn't really make sense due to permissions, but the accepted answer is exactly what I was looking for. See linked question for details about below code.
Window window = this.getWindow();
window.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
To implement an alarm see Background jobs: AlarmManager
arberg
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