自定义一个控件，真机运行没错，模拟器报错，何解？
12-19 01:44:54.300: E/AndroidRuntime(1075): Uncaught handler: thread main exiting due to uncaught exception
12-19 01:44:54.350: E/AndroidRuntime(1075): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.StickHeaderText/com.example.StickHeaderText.MainActivity}: java.lang.ClassNotFoundException: com.example.StickHeaderText.MainActivity in loader dalvik.system.PathClassLoader@43d0b9f8
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2417)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.app.ActivityThread.access$2200(ActivityThread.java:119)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.os.Handler.dispatchMessage(Handler.java:99)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.os.Looper.loop(Looper.java:123)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.app.ActivityThread.main(ActivityThread.java:4363)
12-19 01:44:54.350: E/AndroidRuntime(1075): at java.lang.reflect.Method.invokeNative(Native Method)
12-19 01:44:54.350: E/AndroidRuntime(1075): at java.lang.reflect.Method.invoke(Method.java:521)
12-19 01:44:54.350: E/AndroidRuntime(1075): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
12-19 01:44:54.350: E/AndroidRuntime(1075): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
12-19 01:44:54.350: E/AndroidRuntime(1075): at dalvik.system.NativeStart.main(Native Method)
12-19 01:44:54.350: E/AndroidRuntime(1075): Caused by: java.lang.ClassNotFoundException: com.example.StickHeaderText.MainActivity in loader dalvik.system.PathClassLoader@43d0b9f8
12-19 01:44:54.350: E/AndroidRuntime(1075): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
12-19 01:44:54.350: E/AndroidRuntime(1075): at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
12-19 01:44:54.350: E/AndroidRuntime(1075): at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
12-19 01:44:54.350: E/AndroidRuntime(1075): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2409)
12-19 01:44:54.350: E/AndroidRuntime(1075): ... 11 more
[解决办法]
你在模拟器上面测试之后不是为了在真机上面运行吗？现在不是已经实现目的了吗？那个原因有可能是因为模拟器没有那个对应的什么什么东东！
[解决办法]
Caused by: java.lang.ClassNotFoundException: com.example.StickHeaderText.MainActivity in loader dalvik.system.PathClassLoader@43d0b9f8
从这句异常可以看出你使用的那个类在真机上的android版本是有的，而在模拟器上的那个版本没有（你真机版本比模拟器高），不知道你听明白没，你在模拟器上创建一个与你真机版本一致的模拟器试下就知道是不是这个问题了。希望能帮到你。
[解决办法]
