onSaveInstanceState方法的錯誤

Question

對於其中一個用戶（摩托羅拉motorola XT1068），我得到onSaveInstanceState異常。我正在使用ACRA進行崩潰報告。 下面是完整的堆棧跟蹤：

java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState 
at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1438) 
at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1456) 
at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:634) 
at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:613) 
at android.support.v4.app.FragmentTabHost.onAttachedToWindow(FragmentTabHost.java:282) 
at android.view.View.dispatchAttachedToWindow(View.java:13424) 
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2709) 
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2716) 
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2716) 
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2716) 
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1315) 
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1077) 
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5884) 
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) 
at android.view.Choreographer.doCallbacks(Choreographer.java:580) 
at android.view.Choreographer.doFrame(Choreographer.java:550) 
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) 
at android.os.Handler.handleCallback(Handler.java:739) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5312) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696) 

但無處我的應用程序源代碼中提到的，這纔是我使用的方法savedinstance唯一的地方。

@Override 
    public void onSaveInstanceState(Bundle outState) { 
     super.onSaveInstanceState(outState); 
     outState.putBundle("CONFIG", (savedState != null) ? savedState : saveState()); 
    } 
private Bundle saveState() { 
     Bundle state = new Bundle(); 
     state.putCharSequence("SUCCESS", result.getText()); 
     state.putCharSequence("FAILURE", error.getText()); 
     return state; 
    } 

那麼這裏有什麼問題呢？

編輯：

這裏是ViewPagerAdapter代碼從活動

public class ViewPagerAdapter extends FragmentPagerAdapter { 

    private final int PAGES = 3; 
    private FragmentManager mFragmentManager; 
    private Context mContext; 
    private String[] title = new String[]{"Frag1", 
      "Frag2", "Frag3"}; 

    public ViewPagerAdapter(FragmentManager fm, Context context) { 
     super(fm); 
     mContext = context; 
    } 

    @Override 
    public Fragment getItem(int position) { 

     switch (position) { 
      case 0: 
       return new Fragment1(); 
      case 1: 
       return new Fragment2(); 
      case 2: 
       return new Fragment3(); 
      default: 
       throw new IllegalArgumentException(
         "The item position should be less or equal to:" + PAGES); 
     } 
    } 

    @Override 
    public int getCount() { 
     return PAGES; 
    } 

    @Override 
    public int getItemPosition(Object object) { 
     return POSITION_NONE; 
    } 

    @Override 
    public CharSequence getPageTitle(int position) { 
     return title[position]; 
    } 
} 

呼叫

viewPageAdapter = new ViewPagerAdapter(getSupportFragmentManager(), getApplicationContext()); 

Answer 1

呼叫末尾的超級方法。

@Override 
public void onSaveInstanceState(Bundle outState) { 
    outState.putBundle("CONFIG", (savedState != null) ? savedState : saveState()); 
    super.onSaveInstanceState(outState); 
}