Android跨进程调用示例

客官°小女子只卖身不卖艺 2022-05-19 23:14 193阅读 0赞

1.首先创建服务类,需要继承Service类

package com.ex888.niubi.serv;
    
    import java.io.File;
    import java.io.IOException;
    
    import com.ex888.niubi.MainActivity;
    import com.ex888.niubi.function.MusicInterface.Stub;
    
    import android.R;
    import android.app.Service;
    import android.content.Intent;
    import android.media.MediaPlayer;
    import android.os.Environment;
    import android.os.IBinder;
    import android.os.RemoteException;
    import android.util.Log;
    import android.widget.Toast;
    
    public class MyService extends Service {
    	private MediaPlayer mediaPlayer = new MediaPlayer();
    	@Override
    	public IBinder onBind(Intent intent) {
    		// TODO Auto-generated method stub
    		//mediaPlayer.create(this, R.raw.);
    		return new MyBinder();
    	}
    	
    	class MyBinder extends Stub{
    
    		@Override
    		public void bofangyinyue(String path) throws RemoteException {
    			// TODO Auto-generated method stub
    			bofang(path);
    		}
    
    		
    		
    	}
    	
    	@Override
    	public void onCreate() {
    		// TODO Auto-generated method stub
    		super.onCreate();
    		Log.w("服务", "服务开始启动了");
    	}
    
    	@Override
    	public void onDestroy() {
    		// TODO Auto-generated method stub
    		super.onDestroy();
    		Log.w("服务", "服务结束了");
    	}
    	
    	public void bofang(String path){
    		Log.e("播放", "播放的音乐为："+path);
    	}	
    }

2.需要在清单文件注册动作

3.定义接口类  Android帮我们写好了  只需要调用  后缀名改为.aidl

interface MusicInterface {
    	void bofangyinyue(String path);
    }

4.必须将接口类的包连类一起复制到跨进程的项目中  包名类名都不能修改 不然会报bug

5.跨进程项目的MainActivity

package com.exa45.niubi;
    
    
    
    import com.ex888.niubi.function.MusicInterface;
    import com.ex888.niubi.function.MusicInterface.Stub;
    
    import android.os.Bundle;
    import android.os.IBinder;
    import android.app.Activity;
    import android.content.ComponentName;
    import android.content.Intent;
    import android.content.ServiceConnection;
    import android.view.Menu;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    import android.widget.EditText;
    
    public class MainActivity extends Activity implements OnClickListener{
    	private Button btnstart, btnstop, btn_zt;
    	private EditText et1;
    	private MusicInterface mif;
    	private Intent intent;
    	private MyConn myConn;
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.activity_main);
    		btnstart = (Button) findViewById(R.id.btn_start);
    		btnstop = (Button) findViewById(R.id.btn_stop);
    		btn_zt = (Button) findViewById(R.id.btn_zt);
    		et1 = (EditText) findViewById(R.id.et1);
    		
    		btnstart.setOnClickListener(this);
    		btnstop.setOnClickListener(this);
    		btn_zt.setOnClickListener(this);
    		
    		myConn = new MyConn();
    		intent = new Intent("com.xx.ooo");
    		startService(intent);
    		bindService(intent,myConn , BIND_AUTO_CREATE);
    	}
    	
    	class MyConn implements ServiceConnection{
    
    		@Override
    		public void onServiceConnected(ComponentName name, IBinder service) {
    			// TODO Auto-generated method stub
    			mif = Stub.asInterface(service);
    		}
    
    		@Override
    		public void onServiceDisconnected(ComponentName name) {
    			// TODO Auto-generated method stub
    			
    		}
    		
    	}
    	@Override
    	protected void onDestroy() {
    		// TODO Auto-generated method stub
    		super.onDestroy();
    		if (myConn != null) {
    			unbindService(myConn);
    		}
    		if (intent != null) {
    			stopService(intent);
    		}
    	}
    	@Override
    	public void onClick(View v) {
    		// TODO Auto-generated method stub
    		switch (v.getId()) {
    		case R.id.btn_start:
    			String ms = et1.getText().toString();
    			if (mif != null) {
    				try {
    					mif.bofangyinyue(ms);
    				} catch (Exception e) {
    					// TODO: handle exception
    				}
    			}
    			
    			break;
    
    		default:
    			break;
    		}
    	}
    
    	
    
    }