그래서 튜토리얼 # 12를 통해 모든 것이 잘 작동합니다.튜토리얼 # 13에서 EmPubLite 앱이 깨졌습니다.
04-10 15:59:26.510: E/Trace(704): error opening trace file: No such file or directory (2)
04-10 15:59:27.491: D/AndroidRuntime(704): Shutting down VM
04-10 15:59:27.491: W/dalvikvm(704): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
04-10 15:59:27.500: E/AndroidRuntime(704): FATAL EXCEPTION: main
04-10 15:59:27.500: E/AndroidRuntime(704): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.commonsware.empublite/com.commonsware.empublite.EmPubLiteActivity}: java.lang.NullPointerException
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.ActivityThread.access$600(ActivityThread.java:130)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.os.Handler.dispatchMessage(Handler.java:99)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.os.Looper.loop(Looper.java:137)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.ActivityThread.main(ActivityThread.java:4745)
04-10 15:59:27.500: E/AndroidRuntime(704): at java.lang.reflect.Method.invokeNative(Native Method)
04-10 15:59:27.500: E/AndroidRuntime(704): at java.lang.reflect.Method.invoke(Method.java:511)
04-10 15:59:27.500: E/AndroidRuntime(704): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
04-10 15:59:27.500: E/AndroidRuntime(704): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
04-10 15:59:27.500: E/AndroidRuntime(704): at dalvik.system.NativeStart.main(Native Method)
04-10 15:59:27.500: E/AndroidRuntime(704): Caused by: java.lang.NullPointerException
04-10 15:59:27.500: E/AndroidRuntime(704): at com.commonsware.empublite.ModelFragment.executeAsyncTask(ModelFragment.java:51)
04-10 15:59:27.500: E/AndroidRuntime(704): at com.commonsware.empublite.ModelFragment.deliverModel(ModelFragment.java:38)
04-10 15:59:27.500: E/AndroidRuntime(704): at com.commonsware.empublite.ModelFragment.onActivityCreated(ModelFragment.java:29)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:891)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1080)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:622)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1416)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:505)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1163)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.Activity.performStart(Activity.java:5018)
04-10 15:59:27.500: E/AndroidRuntime(704): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2032)
04-10 15:59:27.500: E/AndroidRuntime(704): ... 11 more
내가이 일 것을 마지막 점까지했던 코드를 주석 처리하려고했으나 그하셨습니까 : 그럼 마지막-읽기 위치 및 응용 프로그램 충돌을 복원/저장을위한 튜토리얼 # 13에 이동하려고 효과가없는 것 같습니다. 나는이 스택 추적을 읽는 방법을 잘 모른다. 이 문제를 해결하려면 어떻게해야합니까?
감사합니다.
아 예. 복사 및 붙여 넣기 작업이 잘못되었습니다. 감사! – Ceres