I have a singleInstance Activity and a Fragment which I instantiate in the onCreate() method and add into a FrameLayout container into the layout of the activity. The activity does nothing except printing out the logs. I am using the android-support-v4 lib and android 2.3.3.
I observed a strange lifecycle behavior with this setting and I wonder if you might help me to explain this. I will provide the logs for the lifecycles: First call of the activity: 07-07 15:12:17.990 V/FragActivity( 2358): onCreate >> com.test.fragmentlife.FragActivity@44f98778 07-07 15:12:21.010 V/FragActivity( 2358): onCreate << 07-07 15:12:21.020 V/LayoutFragment( 2358): onAttach > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:24.021 V/LayoutFragment( 2358): onAttach < 07-07 15:12:24.021 V/LayoutFragment( 2358): onCreate > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:27.020 V/LayoutFragment( 2358): onCreate < 07-07 15:12:27.020 V/LayoutFragment( 2358): onCreateView > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:30.022 V/LayoutFragment( 2358): onCreateView < 07-07 15:12:30.030 V/LayoutFragment( 2358): onActivityCreated > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:33.030 V/LayoutFragment( 2358): onActivityCreated < 07-07 15:12:33.030 V/LayoutFragment( 2358): onStart > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:36.030 V/LayoutFragment( 2358): onStart < 07-07 15:12:36.040 V/FragActivity( 2358): onStart > com.test.fragmentlife.FragActivity@44f98778 07-07 15:12:39.041 V/FragActivity( 2358): onStart < 07-07 15:12:39.041 V/LayoutFragment( 2358): onStop > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:42.040 V/LayoutFragment( 2358): onStop < 07-07 15:12:42.040 V/FragActivity( 2358): onResume > com.test.fragmentlife.FragActivity@44f98778 07-07 15:12:45.041 V/FragActivity( 2358): onResume < 07-07 15:12:45.041 V/LayoutFragment( 2358): onStart > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:48.040 V/LayoutFragment( 2358): onStart < 07-07 15:12:48.040 V/LayoutFragment( 2358): onResume > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:12:51.042 V/LayoutFragment( 2358): onResume < First question: why is the onStop() method of the fragment during the creation of the activity? The Fragment displays fine on the screen. After that I restart the activity by firing an intent, causing the onNewIntent() lidecycle method of the activity. 07-07 15:13:17.220 V/LayoutFragment( 2358): onPause > LayoutFragment{44f467c8 #0 id=0x7f070000} 07-07 15:13:20.220 V/LayoutFragment( 2358): onPause < 07-07 15:13:20.230 V/FragActivity( 2358): onPause > com.test.fragmentlife.FragActivity@44f98778 07-07 15:13:23.231 V/FragActivity( 2358): onPause < 07-07 15:13:23.231 V/FragActivity( 2358): onNewIntent > com.test.fragmentlife.FragActivity@44f98778 07-07 15:13:26.231 V/FragActivity( 2358): onNewIntent < 07-07 15:13:26.231 V/FragActivity( 2358): onResume > com.test.fragmentlife.FragActivity@44f98778 07-07 15:13:29.230 V/FragActivity( 2358): onResume < Second question: why is the onResume() method of the fragment not called? It is still visible on the screen. As far as i know activity and lifecycle methods should go hand in hand... After that i restart the activity a second time: 07-07 15:13:42.140 V/FragActivity( 2358): onPause > com.test.fragmentlife.FragActivity@44f98778 07-07 15:13:45.143 V/FragActivity( 2358): onPause < 07-07 15:13:45.143 V/FragActivity( 2358): onNewIntent > com.test.fragmentlife.FragActivity@44f98778 07-07 15:13:48.144 V/FragActivity( 2358): onNewIntent < 07-07 15:13:48.150 V/FragActivity( 2358): onResume > com.test.fragmentlife.FragActivity@44f98778 07-07 15:13:51.151 V/FragActivity( 2358): onResume < Now the lifecycle methods of the fragmen are not triggered at all.. how is that? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en