Android Framework学习笔记 -- 在framework添加system service

在Context.java添加服务名称

//--->frameworks/base/core/java/android/content/Context.java
public static final String A_SERVICE = "a";

@StringDef {
...
A_SERVICE
}

在ServiceServicer注册服务

//--->frameworks/base/services/java/com/android/server/SystemServer.java
private void startOtherServices() {
...
ServiceManager.addService("AService", new AService);
...
}

在ContextImpl.java添加获取服务管理接口

//--->frameworks/base/core/java/android/app/ContextImpl.java
static {
....
registerService(Context.A_SERVICE,AManager.class,
new CachedServiceFetcher<AManager>() {
@Override
public AManager createService(ContextImpl ctx) {
return new AManager(ctx);
}});
}

Service的aidl

interface IAExService {

}

Service 本体

public class AService extends IAService.Stub {

}

Manager

public class AManager {
public AManager(Context context) {

}

static public IAService getService()
{
IBinder b = ServiceManager.getService("notification");
return IAService.Stub.asInterface(b);
}

}