错误LOG：
1 12-13 17:05:28.754: E/AndroidRuntime(8344): FATAL EXCEPTION: main 2 12-13 17:05:28.754: E/AndroidRuntime(8344): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. 3 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.view.ViewGroup.addViewInner(ViewGroup.java:3337) 4 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.view.ViewGroup.addView(ViewGroup.java:3208) 5 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.view.ViewGroup.addView(ViewGroup.java:3165) 6 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.view.ViewGroup.addView(ViewGroup.java:3145) 7 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:839) 8 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1032) 9 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.app.BackStackRecord.run(BackStackRecord.java:622) 10 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1382) 11 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.app.FragmentManagerImpl$1.run(FragmentManager.java:426) 12 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.os.Handler.handleCallback(Handler.java:605) 13 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.os.Handler.dispatchMessage(Handler.java:92) 14 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.os.Looper.loop(Looper.java:137) 15 12-13 17:05:28.754: E/AndroidRuntime(8344): at android.app.ActivityThread.main(ActivityThread.java:4424) 16 12-13 17:05:28.754: E/AndroidRuntime(8344): at java.lang.reflect.Method.invokeNative(Native Method) 17 12-13 17:05:28.754: E/AndroidRuntime(8344): at java.lang.reflect.Method.invoke(Method.java:511) 18 12-13 17:05:28.754: E/AndroidRuntime(8344): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787) 19 12-13 17:05:28.754: E/AndroidRuntime(8344): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554) 20 12-13 17:05:28.754: E/AndroidRuntime(8344): at dalvik.system.NativeStart.main(Native Method)