我有一個簡單的應用程序,您可以在textview中輸入文本,然後按提交併顯示另一個活動中的文本。然而,當我按下提交,給我的消息「不幸發送已停止」我看了SO上的其他線程,但Unfortunately myfirstproject stopped working error in java似乎是最接近的,他們說檢查LogCat文件,並且它出現了多個錯誤:不幸Project_Name已停止
07-11 19:38:01.925: E/Trace(729): error opening trace file: No such file or directory (2)
07-11 19:38:05.815: I/Choreographer(729): Skipped 451 frames! The application may be doing too much work on its main thread.
07-11 19:38:06.009: D/gralloc_goldfish(729): Emulator without GPU emulation detected.
07-11 19:38:35.046: I/Choreographer(729): Skipped 45 frames! The application may be doing too much work on its main thread.
07-11 19:38:41.427: D/AndroidRuntime(729): Shutting down VM
07-11 19:38:41.435: W/dalvikvm(729): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
07-11 19:38:41.585: E/AndroidRuntime(729): FATAL EXCEPTION: main
07-11 19:38:41.585: E/AndroidRuntime(729): java.lang.IllegalStateException: Could not execute method of the activity
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View$1.onClick(View.java:3591)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View.performClick(View.java:4084)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View$PerformClick.run(View.java:16966)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.os.Handler.handleCallback(Handler.java:615)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.os.Handler.dispatchMessage(Handler.java:92)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.os.Looper.loop(Looper.java:137)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.ActivityThread.main(ActivityThread.java:4745)
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invokeNative(Native Method)
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invoke(Method.java:511)
07-11 19:38:41.585: E/AndroidRuntime(729): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
07-11 19:38:41.585: E/AndroidRuntime(729): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
07-11 19:38:41.585: E/AndroidRuntime(729): at dalvik.system.NativeStart.main(Native Method)
07-11 19:38:41.585: E/AndroidRuntime(729): Caused by: java.lang.reflect.InvocationTargetException
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invokeNative(Native Method)
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invoke(Method.java:511)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View$1.onClick(View.java:3586)
07-11 19:38:41.585: E/AndroidRuntime(729): ... 11 more
07-11 19:38:41.585: E/AndroidRuntime(729): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.point/com.point.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1541)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1416)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivityForResult(Activity.java:3351)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivityForResult(Activity.java:3312)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivity(Activity.java:3522)
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivity(Activity.java:3490)
07-11 19:38:41.585: E/AndroidRuntime(729): at com.point.MainActivity.sendMessage(MainActivity.java:34)
07-11 19:38:41.585: E/AndroidRuntime(729): ... 14 more
07-11 19:43:41.995: I/Process(729): Sending signal. PID: 729 SIG: 9
SO上的鏈接還提到了一些關於不創建TextView和NULL的鏈接。
有人可以幫助我嗎?
我如何當場指出,這是所有的錯誤項問題? – 2012-07-11 21:05:01
第一個會導致所有其他錯誤,正如你所看到的,首先拋出ActivityNotFoundException,然後拋出InvocationTargetException錯誤,因爲它試圖調用一個不存在的Activity,等等...... – 2012-07-11 21:08:36
這是一個堆棧跟蹤,所以在「堆棧」這個詞的背景下思考,從底部開始,找到第一個例外。在這種情況下,它會爲您解決問題,但如果沒有,那麼從第一個異常開始,向下看第一行引用您的代碼文件(例如com.point.MainActivity)的第一行並查看它在什麼路線上引用(MainActivity.java:34)。您的錯誤將從該行代碼中拋出。 – kcoppock 2012-07-11 21:10:27