Android 实现一个Service应用

最新推荐文章于 2025-03-04 20:05:15 发布

Wynston

最新推荐文章于 2025-03-04 20:05:15 发布

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分类专栏： Android 文章标签： service android ui eclipse adt

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本文介绍如何在Android应用中创建并使用Service。通过Eclipse IDE搭建界面，并提供了完整的Activity和服务代码示例，演示了如何启动、停止及绑定服务。

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紧接着前面的那篇博客继续加上代码实现一个service
利用eclipse制作界面新版的ADT支持直接拖动，很方便的设计自己的UI

[img]http://dl.iteye.com/upload/attachment/599609/648c589b-7990-3d56-85b4-f5a946a53571.jpg[/img]

首先定义一个Activity

package com.houyewei.myservice;

import android.app.Activity;
import android.app.Service;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

/*
 * @author:Wynston Hou
 * @email : 
 */

public class MainActivity extends Activity {
	private Button startBtn, stopBtn, bindBtn, unbindBtn;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		// 设置Activity的界面的布局
		setContentView(R.layout.main);
		// 通过findViewByid
		startBtn = (Button) findViewById(R.id.startButton01);
		stopBtn = (Button) findViewById(R.id.stopButton02);
		bindBtn = (Button) findViewById(R.id.bindButton03);
		unbindBtn = (Button) findViewById(R.id.unbindButton04);
		// 添加监听
		startBtn.setOnClickListener(startlistener);
		stopBtn.setOnClickListener(stoplistener);
		bindBtn.setOnClickListener(bindlistener);
		unbindBtn.setOnClickListener(unbindlistener);

	};

	private OnClickListener startlistener = new OnClickListener() {
		@Override
		public void onClick(View v) {
			Intent intent = new Intent();
			intent.setAction("com.houyewei.myservice.action.MY_SERVICE");
			startService(intent);

		}
	};
	private OnClickListener stoplistener = new OnClickListener() {
		@Override
		public void onClick(View v) {
			Intent intent = new Intent();
			intent.setAction("com.houyewei.myservice.action.MY_SERVICE");
			stopService(intent);
		}
	};

	private ServiceConnection conn = new ServiceConnection() {
		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			Log.i("SERVICE", "连接成功");
			Toast.makeText(MainActivity.this, "断开连接", Toast.LENGTH_LONG).show();

		}

		@Override
		public void onServiceDisconnected(ComponentName name) {
			// TODO Auto-generated method stub

		}

	};

	private OnClickListener bindlistener = new OnClickListener() {
		@Override
		public void onClick(View v) {
			Intent intent = new Intent();
			intent.setAction("com.houyewei.myservice.action.MY_SERVICE");
			bindService(intent, conn, Service.BIND_AUTO_CREATE);

		}
	};
	private OnClickListener unbindlistener = new OnClickListener() {
		public void onClick(View v) {
			Intent intent = new Intent();
			intent.setAction("com.houyewei.myservice.action.MY_SERVICE");
			unbindService(conn);

		}
	};

}

一下是service中的内容

package com.houyewei.myservice;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;

public class MyService extends Service {
	public IBinder onBind(Intent intent) {
		Log.i("SERVICE", "onBInd...................");
		Toast.makeText(MyService.this, "onBInd.........", Toast.LENGTH_LONG)
				.show();
		return null;

	}

	public void onCreate() {
		Log.i("SERVICE", "onCreate........");
		Toast.makeText(MyService.this, "onCreatehaha ........",
				Toast.LENGTH_LONG).show();

	}

	public void onStart(Intent intent, int startId) {
		Log.i("SERVICE", "onStartoing..............");
		Toast.makeText(MyService.this, "onStart....哈哈", Toast.LENGTH_LONG)
				.show();
	}

	public void onDestory() {
		Log.i("SERVICE", "Ondestory.........");
		Toast.makeText(MyService.this, "OnDestory。。。。。hhaha", Toast.LENGTH_LONG)
				.show();

	}

}

在AndroidManifest中定义Service 和Activity

运行结果

[img]http://dl.iteye.com/upload/attachment/599611/69bd3732-7384-3d0f-b01c-4433b6f2b6c4.jpg[/img]

[img]http://dl.iteye.com/upload/attachment/599613/4ddcc85b-a478-3f78-9126-aaf3d6c752ff.jpg[/img]