any more comment on this ? On 22 juil, 11:00, Guian <[email protected]> wrote: > but I'm not adding twice the same fragment in one fragment > transaction. > > here is what happens : > > 1) launch app > => call to "onTabSelected" => add my fragment with this piece of > code: > > if(!fragmentsToAdd.isAdded()) > ft.add( R.id.parent, fragmentsToAdd, "myFragment"); > > 2) pressing the Back button > => we are leaving the app (I guess in 'pause' state) > > 3) launching my app again > => new call to "onTabSelected" > => myfragment.isAdded() return false whereas I already added it > once. > ( because mActivity = null in myfragment and I don't understand why) > > => IllegalStateException: Fragment already added > > why des mActivity is null a this step ? is the fragment automaticly > destroyed or removed when pausing/stoping the app ? > > On 22 juil, 02:44, Dianne Hackborn <[email protected]> wrote: > > > > > > > > > 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "Android Developers" group. > > > To post to this group, send email to [email protected] > > > To unsubscribe from this group, send email to > > > [email protected] > > > For more options, visit this group at > > >http://groups.google.com/group/android-developers?hl=en > > > -- > > Dianne Hackborn > > Android framework engineer > > [email protected] > > > 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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