I have two activities Activity A and B, Activity A has 3 fragments namely
a1,a2 and a3. a3 is the default selected fragment which shows videos, a2
contains one big textView and a small edittext in it and a1 contains a
listview.
Now On activity A's title bar I have a button, and since it is on title bar
it is visible from all 3 fragments. OnClick of this button I open Activity
B. using Following function.
public void inviteUser() {
if ( getUserType() == ACTIVE ) {
Intent intent = new Intent(this, B.class);
intent.putExtra(Constants.MEETING_ID, (long) session.getSessionId());
intent.putExtra(Constants.INVITE_FROM_SESSION, true);
intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
this.startActivityForResult(intent, RESULT_OK);
} else {
Toast.makeText(this, getString(R.string.strNotAPresenterMsg),
Toast.LENGTH_LONG).show();
}
}
Inside B I call its `setResult(ResultCode) and finish()`. Now I have **two
problems** when I ***start B from Fragments a1 and a2,***
1. B takes too much time before returning back to A (i.e. after pressing
back button or after finishing the work of B), 2. It doesn't show any
dialog after returning until either I navigate to some other fragment or I
rotate the device, once I do that it starts behaving normally and
surprisingly, when I start the activity ***B from fragment a3,*** it
returns immediately and behaves normally.
I have tried overriding all the life cycle methods of these fragments and
put the Log statements inside each method. Pain is that method calling
sequence is normal and same for both the cases. However I notice that
onDestory and onStop of activity B (Child Activity) are never called, when
I start B from a1, a2 and press the back button once B is started.
The doc says that "The visible lifetime of an activity happens between a
call to onStart() until a corresponding call to onStop(). During this time
the user can see the activity on-screen, though it may not be in the
foreground and interacting with the user."
Since onStop() is not guaranteed the activity behaves abnormally when it is
not called.. I also came to know that in HoneyComb+ devices it is always
called. I have tried calling onStop() inside onPause() but that is not
working. What I do now ?
*More Information :-*
1. I have tried changing the flags of the intent but to no gain.
2. I have added falg `android:configChanges="keyboardHidden|orientation"`
for all the activities of my app.
3. Hope I explained the problem, in case any one need any specific part of
the code. please comment.I will edit the question and add that. Help guys!!!
4. I was testing in GingerBread 2.3.6 it was not working but I just checked
that on emulator running JellyBean and it is working fine. Looks like the
issue is related to OS version. Any idea ?
5. One important point of observation is that When in B I press back
button, after few mili seconds the onResume() of Previous Activity and
their fragments are called. But even after that B is on Screen for some
time and that seems like phone hanged for few seconds....
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