Android 7.0 添加自定义service

Android  7.0 添加service,首先在指定路径下新建,frameworks/base/core/java/android/app/customized/ICustomizedService.aidl和

frameworks/base/core/java/android/app/customized/CustomizedManager.java

package android.app.customized;
 
interface ICustomizedService{
    void shutDown();
}

package android.app.customized;
 
import android.util.Log;
import android.content.Context;
import android.content.Intent;
import android.os.Binder;
import android.os.RemoteException;
import android.provider.Settings;
import java.io.IOException;
import android.os.ServiceManager;
import android.os.IBinder;
import java.util.List;
import android.app.ActivityManager;
import android.graphics.Bitmap;
 
 
public class CustomizedManager{
    private static final String TAG="CustomizedManager";
    private static final boolean DBG=true;
    
    private static ICustomizedService mService;
    private final Context mContext;
 
 
    public CustomizedManager(Context context){
        mContext = context;
        mService = ICustomizedService.Stub.asInterface(
                ServiceManager.getService("customized"));
    }
    private static ICustomizedService getService(){
        if (mService != null) {
            return mService;
        }
        
        IBinder b = ServiceManager.getService("customized");
        if(b==null){
	    System.out.println("IBinder is null");	
	}else{
	    System.out.println("IBinder is not null");
	}
 
        mService = ICustomizedService.Stub.asInterface(b);
        if(mService==null){
	    System.out.println("mService is null");	
	}else{
	    System.out.println("mService is not null");
	}
        return mService;
    }
 
    public void shutDown(){
	    ICustomizedService service = getService();
        try {
            service.shutDown();
        } catch (RemoteException e) {}
    } 
 
}

在如下路径创建frameworks/base/services/core/java/com/android/server/customized/CustomizedService.java

package com.android.server.customized;
 
import android.os.IBinder;
import android.os.ServiceManager;
import android.content.Context;
import android.content.Intent;
import android.os.Binder;
import android.app.customized.ICustomizedService;
import android.content.BroadcastReceiver;
 
 

public class CustomizedService extends ICustomizedService.Stub {
    private static final String TAG = "CustomizedService ";
    private Context mContext;

    public static class Lifecycle extends SystemService {
        private CustomizedService mService;

       public Lifecycle(Context context) {
            super(context);
        }

        @Override
        public void onStart() {
            mService = new CustomizedService (getContext());
            publishBinderService(Context.CUSTOMIZED, mService);
        }

       @Override
        public void onBootPhase(int phase) {
        }

        @Override
        public void onUnlockUser(int userHandle) {
        }
    }

    public CustomizedService (Context context) {
       mContext = context;
   }

    /**
     *  1 add interface shutDown()
     */ 
    public void shutDown () {
       sentControl("custom_shutdown", "null",true);
    }

    private void sentControl(String action, String key, boolean iscontrol) {
       long jh = Binder.clearCallingIdentity();
       Intent i = new Intent();
       i.setAction(action);
       if (iscontrol) {
           i.putExtra(key, true);
       } else {
           i.putExtra(key, false);
       }
       mContext.sendBroadcast(i);
       sentControl (action,iscontrol);
       Binder.restoreCallingIdentity(jh);
    }

    private void sentControl(String action, boolean iscontrol) {
       long jh = Binder.clearCallingIdentity();
       int key;
       if (iscontrol) {
           key = 0;
       } else {
           key = 1;
      }
       Log.i ("custom",",action "+ action + ";   key"+key);   
       Settings.Secure.putInt(mContext.getContentResolver(),action,key);
      Binder.restoreCallingIdentity(jh);
  }


}
 

 修改te文件,首先修改system/sepolicy/service.te

type custom_service, app_api_service, system_server_service, service_manager_type;

 修改system/sepolicy/service_contexts

customized_service                                   u:object_r:custom_service:s0

 在frameworks/base/Android.mk 将AIDL文件添加进去

LOCAL_SRC_FILES += \
 core/java/android/app/customized/ICustomizedService.aidl \

 在frameworks/base/core/java/android/app/SystemServiceRegistry.java中注册service

import android.app.customized.CustomizedManager;    //记得import CustomizedManager
import android.app.customized.ICustomizedManager;
 
registerService(Context.CUSTOMIZED, CustomizedService.class,
       new CachedServiceFetcher<CustomizedManager>() {
           @Override
            public CustomizedManager createService(ContextImpl ctx) {          
                return new CustomizedManager(ctx);
            }});

 在frameworks/base/services/java/com/android/server/SystemServer.java中将service添加进去

 import com.android.server.customized.CustomizedService; //不要忘记import service
 
 private static final String CUSTOM_SERVICE_CLASS =
            "com.android.server.customized.customizedService$Lifecycle"; //记得声明Lifecycle

traceBeginAndSlog("StartCustomizedService");
try {
	mSystemServiceManager.startService(CUSTOM_SERVICE_CLASS);
} catch (Throwable e) {
    reportWtf("startingCustomizedService", e);
}
    Trace.traceEnd(Trace.TRACE_TAG_SYSTEM_SERVER);

在frameworks/base/preloaded-classes中将自定义的service stub添加进来

android.app.customized.CustomizedManager
android.app.customized.ICustomizedService$Stub
android.app.customized.ICustomizedService$Stub$Proxy

 在/frameworks/base/core/java/android/content/Context.java中定义

public static final String CUSTOMIZED = "customized";
 
  /** @hide */
    @StringDef({
           CUSTOMIZED,  //添加到StringDef中
     })

最后在frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java中接收广播

filter.addAction("com.customized.reboot"); //将广播添加到filter 
 
 
if(intent.getAction.equals("custom_shutdown"))  mWindowManagerFuncs.shutdown(false);

 然后编译一下,service就可以启动了~~~