Distinguish Android onDestroy events -


i'll start saying i've seen activity lifecycle diagram (http://developer.android.com/reference/android/app/activity.html) , thouht understand perfectly.

how andestood if there ondestroy event, there no coming , activity in process of being shut down.

all others involve ability show activity again between oncreate , onstop (both inclusive).

i creating application polls custom bluetooth device measurements result. want connection (bluetooth) kept, want discover if user kills activity (from taskbar killing application) can send 1 more thing device , disconnect socket. understood, can put code in ondestroy. turned out (sony xperia z3 , samsung galaxy s2) ondestroy being executed when user clicks power button, locking screen. when screen unlocked, new activity (that guess) created , oncreate run. , can guess - device disconnected because of code put ondestroy

normal automatic screen off + lock not ondestroy...

so point is: there way distinguish ondestroy destroys activity, , ondestroy recreate same activity afterwards when user unlocks screen? want react really-really ondestroy event

yes there way distinguish ondestroy destroys activity:

@override protected void ondestroy() {     super.ondestroy();     if (isfinishing()) {         // bye-bye     } else {         // i'll     } } 

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