Committing a fragment is asynchronous; isAdded() doesn't return true until
the transaction is committed.
On Thu, Jul 21, 2011 at 9:33 AM, Gab <gabriel.del...@gmail.com> wrote:
> I have a same problem, my fragment lost the reference of activity
> after pause/resume...
> I don't understand the fragment's lifecycle.
>
> On 19 juil, 15:10, Guian <guiandou...@gmail.com> wrote:
> > well well ...
> >
> > here is the fix I used :
> >
> > on the creation of my fragment I add a test in fragment.getActivity()
> > is null ...
> >
> > if(testFragment == null || testFragment.getActivity()==null)
> > testFragment = (TestFragment) TestFragment.instantiate(context,
> > "com.mypackage.test.MyFragment");
> >
> > and I recreate a previously build fragment which I think isn't very
> > optimised ...
> >
> > any comment/advise on this is welcome.
> >
> > On 19 juil, 14:31, Guian <guiandou...@gmail.com> wrote:
> >
> > > here is the source code forisAdded:
> >
> > > /**
> > > * Return true if the fragment is currently added to its activity.
> > > */
> > > final public booleanisAdded() {
> > > return mActivity != null && mAdded;
> > > }
> >
> > > indeed ... mActivity is null...
> >
> > > I guess I have to recreate this fragment from scratch since I've lost
> > > its activity owner ?
> > > what cause this reference on mActivity being lost ?
> > > if its the onPause => onResume, what's the point of having a onPause
> > > onResume methods to implement in Fragment, if we have to recreate it
> > > anyway ?
> >
> > > On 19 juil, 12:23, Guian <guiandou...@gmail.com> wrote:
> >
> > > > I've seen thatisAdded() can return false even if the field 'mAdded'
> > > > in the Fragment is true ?
> > > > (seen in the 'Variables' view in eclipse )
> >
> > > > does anybody know why ?
> >
> > > > On 19 juil, 11:46, Guian <guiandou...@gmail.com> wrote:
> >
> > > > > I can't understand how this piece of code :
> >
> > > > > if(!fragmentsToAdd.isAdded())
> > > > > ft.add( R.id.parent, fragmentsToAdd, "myFragment");
> >
> > > > > can lead to this exeption :
> >
> > > > > FATAL EXCEPTION: main
> > > > > java.lang.IllegalStateException: Fragment already added:
> > > > > TestFragment{40856358 #0 id=0x7f060024 "myFragment"}
> > > > > at android.app.BackStackRecord.doAddOp(BackStackRecord.java:322)
> > > > > at android.app.BackStackRecord.add(BackStackRecord.java:316)
> > > > > at com.mypackage.test.MyActivity.onTabSelected(MyActivity.java:164)
> >
> > > > > does the isAdded() function works fine ?
> >
> > > > > ( used with android 3.1, it happens when leaving the app in pause
> > > > > state, then resume it and change Tab from the action bar. )
> >
> > > > > any cu
>
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--
Dianne Hackborn
Android framework engineer
hack...@android.com
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
questions should be posted on public forums, where I and others can see and
answer them.
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