我有，你输入文本的TextView和preSS提交一份简单的应用程序，它显示在另一个活动的文字。然而，当我preSS提交给我的消息Unfortunently发送已停止我看了看其他的线程上如此，但Unfortunately myfirstproject在java中似乎最接近停止工作的错误，他们说检查LogCat中的文件，并提出了多个错误：

I have a simple app that you enter text into the textview and press submit and it shows the text in another Activity. However, when I press submit, gives me the message "Unfortunently Send Has Stopped" I looked at other threads on SO, but Unfortunately myfirstproject stopped working error in java seems the closest and they said to check the LogCat File, and it came up with more than one error:

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

上也是如此链接说了一些关于未创建的TextView，它可以为空。

The link on SO also said something about not creating the TextView and it being NULL.

有人能帮助我吗？

推荐答案

如果你把一个更好看的错误日志中，您将看到：

If you take a better look at the error log you'll see:

产生的原因：android.content.ActivityNotFoundException：无法找到明确的活动类{com.point / com.point.DisplayMessageActivity};有你在你的Andr​​oidManifest.xml宣布这项活动？

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?

那么，你的 DisplayMessageActivity 中声明的的Andr​​oidManifest.xml 文件？

So, is your DisplayMessageActivity declared in the AndroidManifest.xml file?