02_启动和销毁Service

在Application关闭后，Service仍然会运行。

 

package com.example.servdemo;



import android.app.Activity;

import android.app.ActionBar;

import android.app.Fragment;

import android.content.Intent;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.Button;

import android.os.Build;



public class MainActivity extends Activity implements OnClickListener {



    private Button btnStartService, btnStopService;

    private Intent serviceIntent;

    

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

 serviceIntent = new Intent(this, EchoService.class);

        

        btnStartService = (Button) findViewById(R.id.btnStartService);

        btnStopService = (Button) findViewById(R.id.btnStopService);

        

 btnStartService.setOnClickListener(this);

        btnStopService.setOnClickListener(this);

    }





    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }





    @Override public void onClick(View v) {

        

        switch (v.getId()) {

        case R.id.btnStartService:

            startService(serviceIntent);

            break;



        case R.id.btnStopService:

            stopService(serviceIntent);

            break; } }







}

package com.example.servdemo;



import android.app.Service;

import android.content.Intent;

import android.os.IBinder;



public class EchoService extends Service {



    @Override

    public IBinder onBind(Intent intent) {

        return null;

    }

    

    @Override

    public void onCreate() {

        // TODO Auto-generated method stub

        System.out.println("Service Start!");

        super.onCreate();

    }

    

    @Override

    public void onDestroy() {

        // TODO Auto-generated method stub

        System.out.println("Service Stop!");

        super.onDestroy();

    }



}