[Android] IllegalStateException: Cannot add header view to list : setAdapter has already been called.
Android アプリ開発にて、ListFragment で setListAdapter した後に addHeaderView や addFooterView を呼び出すと java.lang.IllegalStateException 例外が発生して、アプリがクラッシュしてしまいます。
Android 4 系だと例外は発生しなくて、Android 2.3 系だと例外でクラッシュするみたいです。
Stack Trace
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0 java.lang.RuntimeException: Unable to resume activity {com.example/com.example.activity.MainActivity}:
java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called.
1 at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2124)
2 at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2139)
3 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:961)
4 at android.os.Handler.dispatchMessage(Handler.java:99)
5 at android.os.Looper.loop(Looper.java:123)
6 at android.app.ActivityThread.main(ActivityThread.java:3691)
7 at java.lang.reflect.Method.invokeNative(Native Method)
8 at java.lang.reflect.Method.invoke(Method.java:507)
9 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
10 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
11 at dalvik.system.NativeStart.main(Native Method)
12 Caused by: java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called.
13 at android.widget.ListView.addHeaderView(ListView.java:336)
14 at android.widget.ListView.addHeaderView(ListView.java:359)
15 at com.example.fragment.NewFragment.refreshListView(NewFragment.java:358)
16 at com.example.fragment.NewFragment.onResume(NewFragment.java:143)
17 at android.support.v4.app.Fragment.performResume(Fragment.java:1503)
18 at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947)
19 at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
20 at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1070)
21 at android.support.v4.app.FragmentManagerImpl.dispatchResume(FragmentManager.java:1871)
22 at android.support.v4.app.FragmentActivity.onResumeFragments(FragmentActivity.java:455)
23 at android.support.v4.app.FragmentActivity.onPostResume(FragmentActivity.java:444)
24 at com.actionbarsherlock.app.SherlockFragmentActivity.onPostResume(SherlockFragmentActivity.java:69)
25 at android.app.Activity.performResume(Activity.java:3867)
26 at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2114)
27 ... 10 more
28 java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called.
29 at android.widget.ListView.addHeaderView(ListView.java:336)
30 at android.widget.ListView.addHeaderView(ListView.java:359)
31 at com.example.fragment.NewFragment.refreshListView(NewFragment.java:358)
32 at com.example.fragment.NewFragment.onResume(NewFragment.java:143)
33 at android.support.v4.app.Fragment.performResume(Fragment.java:1503)
34 at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947)
35 at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
36 at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1070)
37 at android.support.v4.app.FragmentManagerImpl.dispatchResume(FragmentManager.java:1871)
38 at android.support.v4.app.FragmentActivity.onResumeFragments(FragmentActivity.java:455)
39 at android.support.v4.app.FragmentActivity.onPostResume(FragmentActivity.java:444)
40 at com.actionbarsherlock.app.SherlockFragmentActivity.onPostResume(SherlockFragmentActivity.java:69)
41 at android.app.Activity.performResume(Activity.java:3867)
42 at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2114)
43 at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2139)
44 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:961)
45 at android.os.Handler.dispatchMessage(Handler.java:99)
46 at android.os.Looper.loop(Looper.java:123)
47 at android.app.ActivityThread.main(ActivityThread.java:3691)
48 at java.lang.reflect.Method.invokeNative(Native Method)
49 at java.lang.reflect.Method.invoke(Method.java:507)
50 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
51 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
52 at dalvik.system.NativeStart.main(Native Method)
正しいコード
// addHeaderView 後に setListAdapter
listView.addHeaderView(headerView);
listView.addFooterView(footerView);
setListAdapter(arrayAdapter);
IllegalStateException でクラッシュするコード
// setListAdapter 後に addHeaderView
setListAdapter(arrayAdapter);
listView.addHeaderView(headerView);
listView.addFooterView(footerView);
必ず setListAdapter する前に、addHeaderView や addFooterView を呼び出すようにしましょう。
[参考]
・Note to self: ListFragment and header views
・android - ListFragment add headerView gives java.lang.IllegalStateException:alled - Stack Overflow
・Android - ListActivity, add Header and Footer view - Stack Overflow
・android - How to add footer view dynamically - Stack Overflow