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POI got "addView(View) is not supported in AdapterView" error when use Fragment
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  1. POI got "addView(View) is not supported in AdapterView" error when use Fragment
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    copied!<p>This is not the same situation with <a href="https://stackoverflow.com/questions/4576219">Logcat error: &quot;addView(View, LayoutParams) is not supported in AdapterView&quot; in a ListView</a></p> <p>I start a Fragment in ActivityA:</p> <pre><code>FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.replace(R.id.frag_a, new FragmentA()); ft.commit(); </code></pre> <p>There is a ListView in FragmentA's layout, when the ListView's item is clicked, it will replace R.id.frag_a with another fragment, code like these:</p> <pre><code>FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.replace(R.id.frag_a, new FragmentB); ft.commit(); </code></pre> <p>And FragmentA's onCreateView method:</p> <pre><code>public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreateView(inflater, container, savedInstanceState); View tview = inflater.inflate(R.layout.frag_list_a, container, false); mListView = (ListView) tView.findViewById(R.id.listview1); return tview; } </code></pre> <p>FragmentB's onCreateView:</p> <pre><code>public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreateView(inflater, container, savedInstanceState); if (container != null) { System.out.println("+++ container: " + container.getClass().getName()); } View view = inflater.inflate(R.layout.frag_content_a, null, false); System.out.println("+++ view: " + view.getClass().getName()); return view; } </code></pre> <p>the problem is, when I click the item in FragmentA's ListView, Exception throwed:</p> <pre><code>ERROR/AndroidRuntime(321): java.lang.UnsupportedOperationException: addView(View) is not supported in AdapterView at android.widget.AdapterView.addView(AdapterView.java:435) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:848) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1041) at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:616) at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1359) at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:411) at android.os.Handler.handleCallback(Handler.java:587) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:123) at android.app.ActivityThread.main(ActivityThread.java:4627) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:521) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>I checked the implement of FragmentManagerImpl, when the Fragment is create by code (not from layout), it will add the fragment's view into mContainer:</p> <pre><code>if (!f.mFromLayout) { ViewGroup container = null; if (f.mContainerId != 0) { container = (ViewGroup)mActivity.findViewById(f.mContainerId); if (container == null &amp;&amp; !f.mRestored) { throw new IllegalArgumentException("No view found for id 0x" + Integer.toHexString(f.mContainerId) + " for fragment " + f); } } f.mContainer = container; f.mView = f.onCreateView(f.getLayoutInflater(f.mSavedFragmentState), container, f.mSavedFragmentState); if (f.mView != null) { f.mView.setSaveFromParentEnabled(false); if (container != null) { Animator anim = loadAnimator(f, transit, true, transitionStyle); if (anim != null) { anim.setTarget(f.mView); anim.start(); } container.addView(f.mView); } if (f.mHidden) f.mView.setVisibility(View.GONE); f.onViewCreated(f.mView, f.mSavedFragmentState); } } </code></pre> <p>I print out the container in FragmentB's onCreateView method, It's FragmentA's ListView. Since ListView extends AdapterView, and AdapterView's addView throw UnsupportedOperationException directly, this is why the exception occur.</p> <p>But I just do not know how to fix it. Appreciate your help.</p>
 

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