23 服务的创建Demo1

结构

MainActivity.java

package com.qf.day23_service_demo1;

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

public class MainActivity extends Activity {
    //Intent intent;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }

    //启动Service
    public void StartServiceClick(View v){
        Intent intent = new Intent(MainActivity.this, MyService.class);
        intent = new Intent();
        intent.setAction("com.qf.day23_service_demo1.MyService");
        //6.0新特性必须设置
        intent.setPackage(getPackageName());
        intent.putExtra("str", "老家肉饼");
        startService(intent);

    }
    //停止Service
    public void StopSerViceCliclk(View v){
        Intent intent = new Intent(MainActivity.this, MyService.class);
        intent = new Intent();
        intent.setAction("com.qf.day23_service_demo1.MyService");
        stopService(intent);
    }

}

MyService.java

package com.qf.day23_service_demo1;

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

public class MyService extends Service{

    private  static final String TAG ="MyService";

    /**
     * 必须实现的方法   绑定服务时调用的方法
     */
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub

        Log.e(TAG , "===onBind===");
        return null;
    }

    /**
     * 表示服务创建时调用
     */
    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        super.onCreate();
        Log.e(TAG , "===onCreate===");
    }

    /**
     * 通过启动服务 startService() 调用此方法
     * 参数1:启动时传递的对象
     * 参数2:flags  标记
     * 参数3:表示请求的标识
     *
     * 返回值:
     * START_STICKY:粘性的Service    表示被kill掉  尝试重新去启动  如果服务启动成功会调用此方法    intent 的值null
     * START_NOT_STICKY:非粘性Service   表示被kill掉只能通过StartService()再次启动
     * START_REDELIVER_INTENT:表示被Kill掉  系统自动重启改服务  并将Intent传入
     *
     *
     */
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        // TODO Auto-generated method stub

        String str = intent.getStringExtra("str");

        Log.e(TAG , "===onStartCommand==="+str);

        return START_NOT_STICKY;
    }

    /**
     * 解除绑定时 调用此方法
     */
    @Override
    public boolean onUnbind(Intent intent) {
        // TODO Auto-generated method stub
        Log.e(TAG , "===onUnbind===");
        return super.onUnbind(intent);
    }

    /**
     * Service销毁时调用此方法
     */
    @Override
    public void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();

        Log.e(TAG , "===onDestroy===");
    }

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.qf.day23_service_demo1"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.qf.day23_service_demo1.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <!--
        注册service   name="包名.类名"
         -->
        <service android:name=".MyService">
            <intent-filter>
                <action android:name="com.qf.day23_service_demo1.MyService"/>
            </intent-filter>
        </service>
    </application>

</manifest>