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04-13 12:59:37.501: W/dalvikvm(1228): threadid=1: thread exiting with uncaught exception (group=0xb3aa4ba8)
04-13 12:59:37.511: E/AndroidRuntime(1228): FATAL EXCEPTION: main
04-13 12:59:37.511: E/AndroidRuntime(1228): Process: com.example.sudu, PID: 1228
04-13 12:59:37.511: E/AndroidRuntime(1228): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.sudu/com.example.sudu.SuDu}: java.lang.NullPointerException
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.ActivityThread.access$800(ActivityThread.java:135)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.os.Handler.dispatchMessage(Handler.java:102)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.os.Looper.loop(Looper.java:136)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.ActivityThread.main(ActivityThread.java:5017)
04-13 12:59:37.511: E/AndroidRuntime(1228): at java.lang.reflect.Method.invokeNative(Native Method)
04-13 12:59:37.511: E/AndroidRuntime(1228): at java.lang.reflect.Method.invoke(Method.java:515)
04-13 12:59:37.511: E/AndroidRuntime(1228): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
04-13 12:59:37.511: E/AndroidRuntime(1228): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
04-13 12:59:37.511: E/AndroidRuntime(1228): at dalvik.system.NativeStart.main(Native Method)
04-13 12:59:37.511: E/AndroidRuntime(1228): Caused by: java.lang.NullPointerException
04-13 12:59:37.511: E/AndroidRuntime(1228): at com.example.sudu.SuDu.onCreate(SuDu.java:27)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.Activity.performCreate(Activity.java:5231)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
04-13 12:59:37.511: E/AndroidRuntime(1228): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
04-13 12:59:37.511: E/AndroidRuntime(1228): ... 11 more
04-13 12:59:47.431: I/Process(1228): Sending signal. PID: 1228 SIG: 9
就是这个