java - Is there a way to receive broadcast each time any activity is launched? -

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for android developers

my goal saved when activity launched...

for instant there 3 activity launched during last hour, want save database.

of course launch service , check every seconds activity launched use phone battery!

thanks answers.

maybe implement application class, similar singleton method. store data within application every time call new activity.

application : http://developer.android.com/reference/android/app/application.html


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