間接擴展活動

爲了便於使用，我想用某個類擴展一個Android活動，以賦予它額外的功能，然後使用該類的主要活動間接擴展活動

class SuperActivity extends Activity { 
    //Very nice extra functions 
} 

//Class defined in the manifest.xml 
class ApplicationActivity extends SuperActivity { 
    //Start the application 
}

有沒有辦法做到這一點？目前在上述形式的給我一個類未發現異常..

的logcat：

10-08 12:23:28.316: ERROR/AndroidRuntime(678): Uncaught handler: thread main exiting due to uncaught exception 
10-08 12:23:28.336: ERROR/AndroidRuntime(678): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{ntx.app/ntx.app.AppActivity}: java.lang.ClassNotFoundException: ntx.app.AppActivity in loader [email protected] 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2324) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.app.ActivityThread.access$2100(ActivityThread.java:116) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.os.Handler.dispatchMessage(Handler.java:99) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.os.Looper.loop(Looper.java:123) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.app.ActivityThread.main(ActivityThread.java:4203) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at java.lang.reflect.Method.invokeNative(Native Method) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at java.lang.reflect.Method.invoke(Method.java:521) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at dalvik.system.NativeStart.main(Native Method) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678): Caused by: java.lang.ClassNotFoundException: ntx.app.AppActivity in loader [email protected] 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at java.lang.ClassLoader.loadClass(ClassLoader.java:573) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at java.lang.ClassLoader.loadClass(ClassLoader.java:532) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.app.Instrumentation.newActivity(Instrumentation.java:1097) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2316) 
10-08 12:23:28.336: ERROR/AndroidRuntime(678):  ... 11 more

當我讓AppActivity延長android.app.Activity

來源

2009-10-08 Thys

你能從logcat發佈更多的錯誤嗎？ – Intrications 2009-10-08 10:05:10

~~不會發生錯誤解決了這個問題，我添加了一個項目依賴項，但我應該直接添加.jar文件。~~

與依賴關係無關，超類的代碼中有一個未捕獲的異常它。

來源

2009-10-08 11:12:14 Thys

間接擴展活動

回答

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