To make Pop Memo work, you have to allow Quick Memo to draw over other applications. If this permission is not given, nothing will happen when you tap the Pop Memo icon. The menu for enabling drawing over other applications is hard to find. This is how to do it. Go to Settings > Apps. Select *any* app that requires permissions (Quick Memo is not one of these). Try to change any permission. You will be blocked from doing so, and you will get that maddening message 'Screen overlay detected' -- the worst feature of recent Android builds. Tap on 'Open settings' and you will go straight to the 'Draw over other apps' menu. Tap on Quick Memo and move the slider to allow it to draw over other apps. Pop Memo will now work.
(By the way, the only way to change the general permissions of apps and avoid the 'Screen overlay detected' message is to start the phone in safe mode. Long press the on/off button, then long press 'Power off' and you will be given this choice.)
12-05-2017 04:16 PM