【XFeng安卓开发笔记】四大基本组件——跨应用启动service

package com.xfeng.startservicefromanotherapp;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //启动服务
        startService(new Intent(this,AppService.class));
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        //停止服务
        stopService(new Intent(this,AppService.class));
    }
}

package com.xfeng.startservicefromanotherapp;

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

import java.sql.SQLOutput;

public class AppService extends Service {
    public AppService() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        throw new UnsupportedOperationException("Not yet implemented");
    }

    @Override
    public void onCreate() {
        super.onCreate();

        System.out.println("Service started");
    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        System.out.println("Service destory");
    }
}

package com.xfeng.anotherapp;

import android.content.ComponentName;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private Intent serviceIntent;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        serviceIntent = new Intent();
        //显示intent
        serviceIntent.setComponent(new ComponentName("com.xfeng.startservicefromanotherapp", "com.xfeng.startservicefromanotherapp.AppService"));

        findViewById(R.id.btnStartAppService).setOnClickListener(this);
        findViewById(R.id.btnStopAppService).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.btnStartAppService:

//                Intent i = new Intent();
//                //显示intent
//                i.setComponent(new ComponentName("com.xfeng.startservicefromanotherapp","com.xfeng.startservicefromanotherapp.AppService"));
                startService(serviceIntent);
                break;

            case  R.id.btnStopAppService:
                stopService(serviceIntent);
                break;


        }
    }
}