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POnested fragment + FragmentStatePagerAdapter
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copied!<p>I'm trying to use a Fragment(parent fragment) with a View-Pager using the FragmentStatePagerAdapter (because dynamically adding fragments) having videos fetched from the you-tube in different pages of the view pager. when you-tube video is clicked in the view pager fragment(nested fragment) then the parent fragment is replaced by the another fragment which play the corresponding you-tube videos. </p> <p>I am able to move back and forth between the 2 fragment(fragment containing view-pager and fragment containing you-tube player). but after some back and forth movement my app crashes due to <strong>stackoverflow error</strong> </p> <p>After searching various blogs and post in stack overflow i find out my nested fragment is not popped from the back stack. I already tried the solution like -</p> <pre><code>public void onBackPressed() { if (!fragment.getChildFragmentManager().popBackStackImmediate()) { finish(); } } } </code></pre> <p>where fragment is the fragment containing the view-pager but app still crashes.</p> <p>Below is my crash report and related code </p> <p><strong>Crash Report</strong> - </p> <p>07-05 16:49:24.033: E/ACRA(32192): org.pckg.name fatal error : null 07-05 16:49:24.033: E/ACRA(32192): java.lang.StackOverflowError 07-05 16:49:24.033: E/ACRA(32192): at android.text.TextLine.handleText(TextLine.java:747) 07-05 16:49:24.033: E/ACRA(32192): at android.text.TextLine.handleRun(TextLine.java:898) 07-05 16:49:24.033: E/ACRA(32192): at android.text.TextLine.measureRun(TextLine.java:414) 07-05 16:49:24.033: E/ACRA(32192): at android.text.TextLine.measure(TextLine.java:293) 07-05 16:49:24.033: E/ACRA(32192): at android.text.TextLine.metrics(TextLine.java:267) 07-05 16:49:24.033: E/ACRA(32192): at android.text.Layout.getLineExtent(Layout.java:977) 07-05 16:49:24.033: E/ACRA(32192): at android.text.Layout.drawText(Layout.java:329) 07-05 16:49:24.033: E/ACRA(32192): at android.text.Layout.draw(Layout.java:205) 07-05 16:49:24.033: E/ACRA(32192): at android.text.BoringLayout.draw(BoringLayout.java:400) 07-05 16:49:24.033: E/ACRA(32192): at android.widget.TextView.onDraw(TextView.java:5030) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13712) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12650) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.widget.AbsListView.dispatchDraw(AbsListView.java:2327) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13715) 07-05 16:49:24.033: E/ACRA(32192): at android.widget.AbsListView.draw(AbsListView.java:3653) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12650) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13715) 07-05 16:49:24.033: E/ACRA(32192): at android.support.v4.view.ViewPager.draw(ViewPager.java:2153) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12650) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13715) 07-05 16:49:24.033: E/ACRA(32192): at android.widget.FrameLayout.draw(FrameLayout.java:467) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12650) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12694) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.draw(View.java:13428) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.drawChild(ViewGroup.java:2928) 07-05 16:49:24.033: E/ACRA(32192): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2797) 07-05 16:49:24.033: E/ACRA(32192): at android.view.View.getDisplayList(View.java:12648)</p> <p><strong>Code</strong> - Parent Fragment onCreate() method - </p> <pre><code>public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.d(TAG, "video detail frag onCreate"); Log.d(TAG, "bundle of onCreate = " + savedInstanceState); if(savedInstanceState == null){ gPageList = getFragments(); ArrayList<String> pageTitle = generatePageTitle(); gDetailPagerAdapter = new CustomPagerAdapter(getChildFragmentManager(), gPageList, pageTitle); }else{ isCategoryTabAdded = savedInstanceState.getBoolean("isCategoryTabAdded"); isSearchTabAdded = savedInstanceState.getBoolean("isSearchTabAdded"); } } </code></pre> <p><strong>viewpager fragment onItemClick() code</strong> - </p> <pre><code>public void onItemClick(AdapterView<?> adapterView, View view, int position, long arg3) { if (gVideoList != null) { FragmentManager fragManager = getParentFragment().getChildFragmentManager(); FragmentTransaction fragTrans = fragManager.beginTransaction(); Fragment uTubeVideoFrag = FragmentYouTubeVideoPlayer.newInstance( position, gVideoList.get(position).gVideoId); fragTrans.replace(R.id.content_frame, uTubeVideoFrag); fragTrans.addToBackStack(null); fragTrans.commit(); } } </code></pre>

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