我的活动使用ACTION_IMAGE_CAPTURE意图调用相机。如果相机活动成功返回,我在onActivityResult回调中设置一个标志,并根据标志的值在我的onResume中启动一个片段,以为捕获的图像添加标题。这似乎很好地工作。
我刚刚从“野外”获得了一个堆栈跟踪,抱怨我在onSaveInstanceState被调用后尝试提交片段事务。但是我正在我的onResume方法中进行提交!为什么安卓会抱怨这个?我在AndroidManifest.xml中已经设置了android:configChanges="orientation|keyboardHidden|keyboard|screenSize",因此方向变化不应该触发此操作....
这发生在运行4.0.4的三星Galaxy S3(SGH-i747)上。
以下是堆栈:
java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1314)
at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1325)
at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:548)
at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:532)
at com.Familiar.Android.FamiliarAppV1.AddPhotosActivity2.performFragmentTransition(AddPhotosActivity2.java:278)
at com.Familiar.Android.FamiliarAppV1.AddPhotosActivity2.switchToCaptionsFragment(AddPhotosActivity2.java:438)
at com.Familiar.Android.FamiliarAppV1.AddPhotosActivity2.onResume(AddPhotosActivity2.java:167)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1158)
at android.app.Activity.performResume(Activity.java:4544)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2448)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2486)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1187)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4514)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
at dalvik.system.NativeStart.main(Native Method)
非常感谢您的帮助和智慧。