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POjava.lang.IllegalStateException: Cannot add header view to list Android
 

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  1. POjava.lang.IllegalStateException: Cannot add header view to list Android
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    <p>I have one issues in my application, I am setting header view to <code>listview</code> dynamically but am getting below error, I have two activities , A and B according my condition I am setting header view to <code>listview</code> when I am setting headerview in A activity it works fine but when A activity false my condition and go to B activity there my condition is true then come to A activity i need to add header view there I am getting Error................ I have tried to added onStart(), onResume() methods, but still am getting same error..... how to fix it</p> <p>Java code</p> <pre><code>on Strat() { if (mDrawerList.getHeaderViewsCount()&lt;1) { TextView headerText = new TextView(mContext); headerText.setGravity(Gravity.CENTER); headerText.setTextColor(getResources().getColor(R.color.white_color)); headerText.setPadding(20, 12, 20, 12); headerText.setTextSize(18); headerText.setText(mSessionManager.getUserName()); mDrawerList.addHeaderView(headerText); } adapter = new NavDrawerListAdapter(mContext, navDrawerItems); mDrawerList.setDividerHeight(2); mDrawerList.setAdapter(adapter); adapter.notifyDataSetChanged(); } </code></pre> <p>Error message</p> <pre><code>2-20 15:15:34.799: E/AndroidRuntime(13111): FATAL EXCEPTION: main 12-20 15:15:34.799: E/AndroidRuntime(13111): java.lang.RuntimeException: Unable to resume activity {com.examle.EventListActivity}: java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called. 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2790) 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2819) 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1298) 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.os.Handler.dispatchMessage(Handler.java:99) 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.os.Looper.loop(Looper.java:137) 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.app.ActivityThread.main(ActivityThread.java:5103) 12-20 15:15:34.799: E/AndroidRuntime(13111): at java.lang.reflect.Method.invokeNative(Native Method) 12-20 15:15:34.799: E/AndroidRuntime(13111): at java.lang.reflect.Method.invoke(Method.java:525) 12-20 15:15:34.799: E/AndroidRuntime(13111): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 12-20 15:15:34.799: E/AndroidRuntime(13111): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 12-20 15:15:34.799: E/AndroidRuntime(13111): at dalvik.system.NativeStart.main(Native Method) 12-20 15:15:34.799: E/AndroidRuntime(13111): Caused by: java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called. 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.widget.ListView.addHeaderView(ListView.java:258) 12-20 15:15:34.799: E/AndroidRuntime(13111): at android.widget.ListView.addHeaderView(ListView.java:287) </code></pre>
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    1. USvenu
    1. USvenu
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      1. POjava.lang.IllegalStateException: Cannot add header view to list Android
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      1. VTApproveEditSuggestion
    1. CO`Cannot add header view to list -- setAdapter has already been called.` That's mean .... well you have to add header first and then setAdapter to view ;]
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      1. POjava.lang.IllegalStateException: Cannot add header view to list Android
      1. USGooziec
    2. CObefor setting adapter i am addeding header view
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      1. POjava.lang.IllegalStateException: Cannot add header view to list Android
      1. USvenu
    3. COIt does not seem to be. You may be accessing a `ListView` that is already setup. Show us a little more part of the relevant code.
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      1. POjava.lang.IllegalStateException: Cannot add header view to list Android
      1. USRajesh
 

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