有点小问题,但在分析堆栈跟踪我正确地认为堆栈跟踪中的第一个或最顶端的项目是最新的? 而在我的情况是'performDestroyActivity'的原因或崩溃的结果?Android:USB断开连接导致应用程序崩溃
调试我的崩溃原因的下一步应该是什么?
这是我BugSense报告
java.lang.RuntimeException: Unable to destroy activity {ca.foo.awesomeapp/ca.foo.awesomeapp.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3497)
at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3515)
at android.app.ActivityThread.access$1400(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1249)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.NullPointerException
at com.wiley.wroxaccessories.WroxAccessory.disconnect(WroxAccessory.java:79)
at ca.foo.awesomeapp.MainActivity.onDestroy(MainActivity.java:179)
at android.app.Activity.performDestroy(Activity.java:5403)
at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1117)
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3484)
... 11 more
向我们展示您的活动中的onDestroy方法。 onDestroy(MainActivity.java:179)是问题出在你的活动中的地方。无论disconnect()方法调用是什么导致你的空指针。只需在堆栈轨迹中稍微查看一下即可看到。 – dymmeh