andriod service 和intentservice

项目地址：https://gitee.com/vita__chaochao/andriod-backend-app

service和intentservice对比

不同点

service需要主动stop 才会销毁，intentservice程序执行完成后会自动销毁

相同点

等待之前的任务完成后，再执行新的任务，所有任务完成后最后销毁。

1.myservice开发

代码

package com.example.myapplication;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.IBinder;
import android.util.Log;

public class MyService extends Service {
    public MyService() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        Log.v("Jason", "MyService onBind");
        return null;
    }
    @Override
    public void onCreate() {
        Log.v("Jason", "MyService onCreate");
        super.onCreate();
    }

    @Override
    public void onStart(Intent intent, int startId) {
        Log.v("Jason", "MyService onStart");
        super.onStart(intent, startId);
    }
    @Override
    public void onDestroy() {
        Log.v("Jason", "MyService onDestroy");
        super.onDestroy();
    }
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        Log.v("Jason", "MyService onStartCommand-----");
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        Log.v("Jason", "MyService onStartCommand after sleep 10 s-----");
        //以下为新增---------------------------------------------
        String CHANNEL_ONE_ID = "com.primedu.cn";
        String CHANNEL_ONE_NAME = "Channel One";
        NotificationChannel notificationChannel = null;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            notificationChannel = new NotificationChannel(CHANNEL_ONE_ID,
                    CHANNEL_ONE_NAME, NotificationManager.IMPORTANCE_HIGH);
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.setShowBadge(true);
            notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
            NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
            manager.createNotificationChannel(notificationChannel);
        }
//--------------------------------------------------------以上为新增

        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE);
        Notification notification = new Notification();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            notification = new Notification.Builder(this).setChannelId(CHANNEL_ONE_ID)
                    .setTicker("Nature")
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setContentTitle("xxxx")
                    .setContentText("setContentText")
                    .setContentIntent(pendingIntent)
                    .getNotification();
        }
        notification.flags |= Notification.FLAG_NO_CLEAR;
        startForeground(1, notification);
// service需要手动stop才会销毁
        stopSelf(startId);

        return super.onStartCommand(intent, flags, startId);
    }
}

配置

 <service android:name=".MyService"
            android:exported="true"
            >

        </service>

2.intentservice开发

代码

package com.example.myapplication;

import android.app.IntentService;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.util.Log;

import java.util.Objects;

public class MyIntentService extends IntentService {

    /**
     * Creates an IntentService.  Invoked by your subclass's constructor.
     *
     * @param name Used to name the worker thread, important only for debugging.
     */
    public MyIntentService(String name) {

        super(name);
        Log.v("Jason", "MyIntentService Creates an IntentService");
    }

    public MyIntentService() {

        super("MyIntentService");
        Log.v("Jason", "MyIntentService Creates an IntentService zero argument constructor");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        assert intent != null;
        Log.v("Jason", "MyIntentService onHandleWork---------,myvar value is:" + Objects.requireNonNull(intent.getExtras()).getString("myvar"));
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        Log.v("Jason", "MyIntentService onHandleWork  after sleep 10s---------" );

        //以下为新增---------------------------------------------
        String CHANNEL_ONE_ID = "com.primedu.cn";
        String CHANNEL_ONE_NAME = "Channel One";
        NotificationChannel notificationChannel = null;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            notificationChannel = new NotificationChannel(CHANNEL_ONE_ID,
                    CHANNEL_ONE_NAME, NotificationManager.IMPORTANCE_HIGH);
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.setShowBadge(true);
            notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
            NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
            manager.createNotificationChannel(notificationChannel);
        }
//--------------------------------------------------------以上为新增

        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE);
        Notification notification = new Notification();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            notification = new Notification.Builder(this).setChannelId(CHANNEL_ONE_ID)
                    .setTicker("Nature")
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setContentTitle("xxxx")
                    .setContentText("setContentText")
                    .setContentIntent(pendingIntent)
                    .getNotification();
        }
        notification.flags |= Notification.FLAG_NO_CLEAR;
        startForeground(1, notification);

    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.v("Jason", "MyIntentService onDestroy");
    }
}

配置

<!--    start forground需要权限-->
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />


<service
            android:name=".MyIntentService"
            android:exported="true">

        </service>

3.adb测试

wulili@wulilideMacBook-Air andriod-backend-app % adb shell am start-foreground-service -n "com.example.myapplication/com.example.myapplication.MyService" -e myvar myvalval
Starting service: Intent { cmp=com.example.myapplication/.MyService (has extras) }
wulili@wulilideMacBook-Air andriod-backend-app % adb shell am start-foreground-service -n "com.example.myapplication/com.example.myapplication.MyService" -e myvar myvalval
Starting service: Intent { cmp=com.example.myapplication/.MyService (has extras) }

destroy（）最后调用一次

wulili@wulilideMacBook-Air andriod-backend-app % adb shell am start-foreground-service -n "com.example.myapplication/com.example.myapplication.MyIntentService" -e myvar myvalval
Starting service: Intent { cmp=com.example.myapplication/.MyIntentService (has extras) }
wulili@wulilideMacBook-Air andriod-backend-app % adb shell am start-foreground-service -n "com.example.myapplication/com.example.myapplication.MyIntentService" -e myvar myvalval
Starting service: Intent { cmp=com.example.myapplication/.MyIntentService (has extras) }
wulili@wulilideMacBook-Air andriod-backend-app % 

destroy（）最后调用一次