Android系統消息推送

現在好多應用都接入了推送功能，市面上也有很多關於推送的第三方，例如極光等等，那麼我們需求不大，接入極光會造成很大的資源浪費，下面我們來看下利用android服務進行本地推送消息，

1.註冊一個Service

package com.baofoo.manshenghuo.ui.Service;

import android.annotation.TargetApi;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.IBinder;
import com.baofoo.manshenghuo.MainActivity;
import com.baofoo.manshenghuo.R;
import java.util.Calendar;

/**
 * Created by 70883 on 2017/8/10.
 */
public class PushSmsService extends Service {
    private NotificationManager manager;
    private PendingIntent pi;
    private MyThread myThread;
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
         return null;
         }

    @Override
    public void onCreate() {
        myThread = new MyThread();
        myThread.start();
        super.onCreate();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
    }
            @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
            private void notification() {
                // 獲取系統的通知管理器  
                manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
                Intent intent = new Intent(getApplicationContext(),
                        MainActivity.class);
                pi = PendingIntent.getActivity(getApplicationContext(), 0, intent, 0);
                Notification notification = new Notification.Builder(getApplicationContext())
                        .setAutoCancel(true)
                        .setContentText("工作在忙,也要吃飯哦")
                        .setContentIntent(pi)
                        .setSmallIcon(R.mipmap.ic_icon)
                        .setWhen(System.currentTimeMillis())
                        .build();
                notification.defaults = Notification.DEFAULT_ALL; // 使用默認設置，比如鈴聲、震動、閃燈  
                 notification.flags = Notification.FLAG_AUTO_CANCEL; // 但用戶點擊消息後，消息自動在通知欄自動消失  
                notification.flags |= Notification.FLAG_NO_CLEAR;// 點擊通知欄的刪除，消息不會依然不會被刪除  
                manager.notify(0, notification);
            }
    private class  MyThread  extends Thread{
        private Calendar  c ;
        @Override
        public void run() {
            while (true){
                c = Calendar.getInstance();
                if(c.get(Calendar.HOUR_OF_DAY) == 15){
                        try {
                            notification();
                            sleep(1000*60*60);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                }
            }

        }
    }
}

2.在AndroidMan中註冊

<service android:name=".ui.Service.PushSmsService"></service>  

3.由於我是需要全局應用就在Application中進行啓動了

 public void startService() {
        Intent intent = new Intent(this, PushSmsService.class);
        // 啓動服務
        startService(intent);
    }

4.也可以配合服務端使用，定時推送消息