MyServiceUtil.java code is as follows:
package org.lxh.demo;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
public class MyServiceUtil extends Service {//继承Service类
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
System.out.println("***Service onCreate()");
}
@Override
public void onDestroy() {
System.out.println("***Service onDestory()");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
System.out.println("***Service onStart()-->Intent=" + intent
+ ",startId=" + startId);
return Service.START_CONTINUATION_MASK;//继续执行Service
}
}
main.xml code is as follows:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/start"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="启动Service" />
<Button
android:id="@+id/stop"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="停止Service" />
</LinearLayout>
java code as follows:
package org.lxh.demo;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class Hello extends Activity {
private Button start = null;
private Button stop = null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); // 生命周期方法
super.setContentView(R.layout.main); // 设置要使用的布局管理器
this.start = (Button) super.findViewById(R.id.start);
this.stop = (Button) super.findViewById(R.id.stop);
this.start.setOnClickListener(new StartOnClickListener());
this.stop.setOnClickListener(new StopOnClickListener());
}
private class StartOnClickListener implements OnClickListener {
public void onClick(View arg0) {
Hello.this
.startService(new Intent(Hello.this, MyServiceUtil.class));
}
}
private class StopOnClickListener implements OnClickListener {
public void onClick(View arg0) {
Hello.this.stopService(new Intent(Hello.this, MyServiceUtil.class));
}
}
}
We need to configure permissions:
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="org.lxh.demo"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />
<application
android:icon="@drawable/icon"
android:label="@string/app_name">
<activity
android:name=".Hello"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<strong><span style="color:#ff0000;"><service android:name=".MyServiceUtil"></service></span></strong>
</application>
</manifest>
Run the examples are as follows:
(1) for the first time Click "Start service" button
03-18 09: 58: 00.058: the I / System.out (692): *** Service the onCreate ()
03-18 09: 58: 00.058: the I /System.out(692): *** the onStart-Service () -> the Intent the Intent = {= org.lxh.demo CMP / .MyServiceUtil}, startID =. 1
(2) was repeated click "start-Service"
03-18 10 : 06: 06.227: the I / the System.out (727): *** the onStart-service () -> the Intent the Intent = {= org.lxh.demo CMP / .MyServiceUtil}, startID 2 =
(. 3) click "end service "
03-18 10: 06: 10.647: the I / System.out (727): *** Service onDestory ()
Open a running program can be seen: