service例子

分享一下学习的安卓视频的关于service的例子，希望能帮助大家学习！

 

先编写FirstService：

 

package mars.service1;

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

public class FirstService extends Service {

	@Override
	public IBinder onBind(Intent intent) {
		// TODO Auto-generated method stub
		System.out.println("Service onBind");
		return null;
	}

	//当创建一个Servcie对象之后，会首先调用这个函数
	@Override
	public void onCreate() {
		// TODO Auto-generated method stub
		super.onCreate();
		System.out.println("Service onCreate");
	}

	@Override
	public int onStartCommand(Intent intent, int flags, int startId) {
		// TODO Auto-generated method stub
		System.out.println("flags--->" + flags);
		System.out.println("startId--->" + startId);
		System.out.println("Service onStartCommand");
		return START_NOT_STICKY;
	}

	@Override
	public void onDestroy() {
		// TODO Auto-generated method stubo
		System.out.println("Service onDestory");
		super.onDestroy();
	}
}

 

 

接下来是Activity代码：

 

package mars.service1;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class TestActivity extends Activity {
	/** Called when the activity is first created. */
	private Button startServiceButton = null;
	private Button stopServiceButton = null;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		startServiceButton = (Button) findViewById(R.id.startService);
		startServiceButton.setOnClickListener(new StartServiceListener());
		stopServiceButton = (Button) findViewById(R.id.stopService);
		stopServiceButton.setOnClickListener(new StopServiceListener());
		System.out.println("Activity onCreate");
	}

	class StartServiceListener implements OnClickListener {
		@Override
		public void onClick(View v) {
			Intent intent = new Intent();
			intent.setClass(TestActivity.this, FirstService.class);
			startService(intent);
		}
	}

	class StopServiceListener implements OnClickListener {
		@Override
		public void onClick(View v) {
			Intent intent = new Intent();
			intent.setClass(TestActivity.this, FirstService.class);
			stopService(intent);
		}
	}
}

 

另外还要注意AndroidManifest.xml：

 

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="mars.service1"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".TestActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
		<service android:name=".FirstService"></service>
    </application>
    <uses-sdk android:minSdkVersion="7" />

</manifest>