android aidl通讯两个APP之间的应用

一：数据提供端代码（数据提供APP）

1.java代码：Service

package com.example.remoteaidi;

import com.example.remoteaidi.aidl.StudentAidl;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;

public class StudentService extends Service {
	private String[] studentNo = {"王1","2","王3","王4","王月4","宋6"};
	
	private IBinder binder = new StudentQueryBinder();
	@Override
	public IBinder onBind(Intent intent) {
		return binder;
	}
	
	class StudentQueryBinder extends StudentAidl.Stub {

		@Override
		public String getStudent(int no) throws RemoteException {
			int l = studentNo.length;
			if(l<0) {
				no = 0;
			}
			if(no>=l) {
				no = l - 1;
			}
			return studentNo[no];
		}
		
	}
	

}

aidl文件

package com.example.remoteaidi.aidl;

interface StudentAidl {
	String getStudent(int no);
}

清单文件

二：请求端代码

package com.example.aidlclient;

import com.example.remoteaidi.aidl.StudentAidl;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {

	private ServiceConnectionImpl sci ;
	private StudentAidl student;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Intent intent = new Intent();	
		intent.setAction("student.query");
		sci = new ServiceConnectionImpl();
		bindService(intent, sci, BIND_AUTO_CREATE);
	}
	
	public void queryOnClick(View v) {
		EditText et_no_text = (EditText) findViewById(R.id.et_no_text);
		String no = et_no_text.getText().toString();
		String sname;
		try {
			sname = student.getStudent(new Integer(no));
			TextView tv_no = (TextView) findViewById(R.id.tv_no);
			tv_no.setText(sname);
		} catch (NumberFormatException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (RemoteException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
	}
	
	class ServiceConnectionImpl implements ServiceConnection {

		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			student = StudentAidl.Stub.asInterface(service);
		}

		@Override
		public void onServiceDisconnected(ComponentName name) {
			student = null;
		}
		
	}
	
	@Override
	protected void onDestroy() {
		// TODO Auto-generated method stub
		super.onDestroy();
		if(sci != null) {
			unbindService(sci);
		}
	}

	

}

aidl文件与上一个aidl文件相同

package com.example.remoteaidi.aidl;

interface StudentAidl {
	String getStudent(int no);
}

布局文件

清单文件