Fragment IllegalStateException: Can not perform this action after onSaveInstanceState

http://blog.csdn.net/top_code/article/details/12614571

在使用Fragment的FragmentTransaction commit 時候經常會碰到下面的錯誤：

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1. java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState  
2.     at android.support.v4.app.FragmentManagerImpl.checkStateLoss(Unknown Source)  
3.     at android.support.v4.app.FragmentManagerImpl.enqueueAction(Unknown Source)  
4.     at android.support.v4.app.BackStackRecord.commitInternal(Unknown Source)  
5.     at android.support.v4.app.BackStackRecord.commit(Unknown Source)  
6.     at com.yulore.yellowpage.DialLogActivity.a(Unknown Source)  
7.     at com.yulore.yellowpage.fragment.x.handleMessage(Unknown Source)  
8.     at android.os.Handler.dispatchMessage(Handler.java:99)  
9.     at android.os.Looper.loop(Looper.java:137)  
10.     at android.app.ActivityThread.main(ActivityThread.java:4797)  
11.     at java.lang.reflect.Method.invokeNative(Native Method)  
12.     at java.lang.reflect.Method.invoke(Method.java:511)  
13.     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)  
14.     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)  
15.     at dalvik.system.NativeStart.main(Native Method)  

檢視Developer文檔 commit 方法說明

解決辦法

把commit（）方法替換成 commitAllowingStateLoss() 

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1. ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);  
2.         if (this.isFinishing()) {   //判斷Activity是否還存在  
3.             return;  
4.         }  
5.         ft.commitAllowingStateLoss();  
6. //      ft.commit();  

20. 在debug帶有android.support.v4的包時,結果出現下面的錯誤:

  05-10 15:47:09.850: E/AndroidRuntime(12744): java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState

比較完整的stack如下:

1	05 - 10 15 : 47 : 06.470 : W/dalvikvm( 12744 ): threadid= 1 : thread exiting with uncaught exception (group= 0x40a4b1f8 )

2	05 - 10 15 : 47 : 09.850 : E/AndroidRuntime( 12744 ): FATAL EXCEPTION: main

3	05 - 10 15 : 47 : 09.850 : E/AndroidRuntime( 12744 ): java.lang.IllegalStateException: Can not perform  this action after onSaveInstanceState

4	05 - 10 15 : 47 : 09.850 : E/AndroidRuntime( 12744 ):    at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java: 1299 )

5	05 - 10 15 : 47 : 09.850 : E/AndroidRuntime( 12744 ):    at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java: 1310 )

6	05 - 10 15 : 47 : 09.850 : E/AndroidRuntime( 12744 ):    at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java: 541 )

7	05 - 10 15 : 47 : 09.850 : E/AndroidRuntime( 12744 ):    at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java: 525 )

8	05 - 10 15 : 47 : 09.850 : E/AndroidRuntime( 12744 ):    at android.support.v4.app.DialogFragment.show(DialogFragment.java: 123 )

在此處有人也一個有點類似問題:

http://stackoverflow.com/questions/7575921/illegalstateexception-can-not-perform-this-action-after-onsaveinstancestate-h

我看到上面有提到onSaveInstanceState(),于是就重寫了下這個.像上面說的不能調用super.我調用了,而且居然就tmd沒有錯誤提示了..

19.05-10 16:08:43.190: E/AndroidRuntime(14243): java.lang.IllegalStateException: addToBackStack() called after commit()