AIDL传输简单数据类型示例

• 定义一个AIDL接口（扩展名.aidl）：

package com.example.aidlservice;

 interface ICat {
	String getColor();
	double getWeigth();
	
}

•  定义一个service

public class AidlService extends Service {
	private String color;
	private double weight;
	private CatBinder catBinder;
	Timer timer = new Timer();
	String[] colors = new String[]{"红色","白色","黑色"};
	@Override
	public IBinder onBind(Intent arg0) {
		return catBinder;
	}
	
	public class CatBinder extends Stub{

		@Override
		public String getColor() throws RemoteException {
			return color;
		}

		@Override
		public double getWeigth() throws RemoteException {
			return weight;
		}
	}
	
	@Override
	public void onCreate() {
		super.onCreate();
		catBinder = new CatBinder();
		timer.schedule(new TimerTask() {
			@Override
			public void run() {
				int rand = (int)(Math.random()*3);
				color = colors[rand];
				weight = Math.random()*100;
				
			}
		}, 0, 800);
	}
	
	@Override
	public void onDestroy() {
		// TODO Auto-generated method stub
		super.onDestroy();
		timer.cancel();
	}

}

 

• Manifest文件

 <service android:name=".AidlService">
            <intent-filter >
                <action android:name="com.example.aidlservice.AIDL_SERVICE"/>
            </intent-filter>
        </service>

 

这样，远程调用的servcie就定义好了，在开发工具中，是单独的一个项目哦，然后生成apk，安装。

 

• Activity调用，要新建一个工程，然后将aidl文件复制到新的项目中。
• activity代码：

public class AIDLActivity extends Activity {
	ICat catService;
	TextView tView;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activitylist);
		Button button4 = (Button) this.findViewById(R.id.activitylistbutton4);
		tView = (TextView) this.findViewById(R.id.tvw);
		Intent intent = new Intent();
		intent.setAction("com.example.aidlservice.AIDL_SERVICE");
		bindService(intent, connection, Service.BIND_AUTO_CREATE);
		button4.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				
				try {
					tView.setText(catService.getColor()+"----"+catService.getWeigth());
				} catch (RemoteException e) {
					e.printStackTrace();
				}
				Toast.makeText(AIDLActivity.this, "服务已经启动", Toast.LENGTH_LONG).show();
			}
		});
	}
	
	@Override
	protected void onStart() {
		super.onStart();
	}
	private ServiceConnection connection = new ServiceConnection() {
		
		@Override
		public void onServiceDisconnected(ComponentName name) {
			System.err.println("service is unconnected");
		}
		
		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			//System.err.println(ICat==null);
			catService = ICat.Stub.asInterface(service) ;
			
			System.err.println("service is connected");
			
		}
	};
	
	protected void onDestroy() {
		super.onDestroy();
		unbindService(connection);
	};
}