title: Android Activity management
body: <p>I have one question in mind for <strong>activity management</strong>. Suppose I have 4 activities say for example A1,A2,A3,A4. Now A1 have one button which start activity A2. A2 have 2 buttons which start  either A3 or A4, A3 have  2 buttons which start activity  A4 and A1. A4 have 3 buttons to sart activity A1,A2,A3 I do not use finish method in any of this activity. So now user click any of the activity any of the button than check the activity ,that is this already in back ground? If yes than this activity would not generate new instance and start activity which is <strong>already in background</strong>. otherwise it create new insistence. </p>