是否允许将服务嵌套到应用程序中？

Question

我有我的应用程序做它的应用程序的东西（保持记录，处理单例等），我有一个嵌套的服务，将处理套接字连接。我以前在自己的课堂上有过这项服务，但是由于我提高了效率，我认为将它移入应用程序是一个好主意。我更新清单：

<service android:name="com.arm.core.ArmApplication$IOService"/> 

我认为这是声明嵌套服务的正确方法，但我得到一个InstantiationException。服务需要是静态还是我不允许将服务嵌套到另一个类中？

04-15 14:11:53.167: ERROR/AndroidRuntime(18379): FATAL EXCEPTION: main 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379): java.lang.RuntimeException: Unable to instantiate service com.android.appion.arm.core.AppionApplication$IOService: java.lang.InstantiationException: com.android.appion.arm.core.AppionApplication$IOService 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at android.app.ActivityThread.handleCreateService(ActivityThread.java:3102) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at android.app.ActivityThread.access$3300(ActivityThread.java:135) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2202) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at android.os.Looper.loop(Looper.java:144) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at android.app.ActivityThread.main(ActivityThread.java:4937) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at java.lang.reflect.Method.invoke(Method.java:521) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at dalvik.system.NativeStart.main(Native Method) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379): Caused by: java.lang.InstantiationException: com.android.appion.arm.core.AppionApplication$IOService 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at java.lang.Class.newInstanceImpl(Native Method) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at java.lang.Class.newInstance(Class.java:1429) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  at android.app.ActivityThread.handleCreateService(ActivityThread.java:3099) 
04-15 14:11:53.167: ERROR/AndroidRuntime(18379):  ... 10 more 

Answer 1

您必须具有默认构造函数。所以是的，将其声明为静态或将其放入它自己的类中。