ondestroy

I have put some cache cleaning code in onDestroy of my activity but most of the time the code is not executed unless I explicitly finish the activity via finish() . Edit: Just read onDestroy is called only with finish() or if the system is low on resources. So where do I need to put my cache cleaning code? If I put it in onPause() and the user goes back to the app, the cache is cleared. I am actually storing important temporary files in the cache that should not be deleted in onPause . From Android developer documentation : protected void onDestroy () Added in API level 1 Perform any final

onDestroy() is not always called. If called, only part of the code is executed. And most of the time in LogCat I only see the message "gps state on destroy called first". Why is that? protected void onDestroy(){ super.onDestroy(); Log.d("on destroy called", "gps state on destroy called first"); editor.putBoolean("gpsOn", false); Log.d("on destroy called", "gps state on destroy called second"); editor.commit(); Log.d("on destroy called", "gps state on destroy called third"); stopRouteTracking(); Log.d("on destroy called", "gps state on destroy called fourth"); } Chris Take a look at this:

I am using following code in my ListActivity // a separate class in project public class MyActivity extends ListActivity { // some common functions here.. } public class SelectLocation extends MyListActivity { public void onCreate(Bundle savedInstance) { // here..... } @Override protected void onDestroy() { super.onDestroy(); if (adap != null) adap = null; if (list != null) list = null; System.gc(); } } any one guide me why onDestroy method is not called in my code? onDestroy() is called only when system is low on resources(memory, cpu time and so on) and makes a decision to kill your activity