/*
 *  Copyright (c)  2017.  wugian
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

package com.xgimi.gimicinema.poll;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.SystemClock;

/**
 * after android 5.+ AlarmManager spacing interval is 1 min
 */
public class PollingUtils {
    //开启轮询服务
    public static void startPollingService(Context context, int seconds, Class<?> cls, String action) {
        //获取AlarmManager系统服务
        AlarmManager manager = (AlarmManager) context
                .getSystemService(Context.ALARM_SERVICE);
                                                                                                                                                                                                                                       
        //包装需要执行Service的Intent
        Intent intent = new Intent(context, cls);
        intent.setAction(action);
        PendingIntent pendingIntent = PendingIntent.getService(context, 0,
                intent, PendingIntent.FLAG_UPDATE_CURRENT);
                                                                                                                                                                                                                                       
        //触发服务的起始时间
        long triggerAtTime = SystemClock.elapsedRealtime();
                                                                                                                                                                                                                                       
        //使用AlarmManger的setRepeating方法设置定期执行的时间间隔（seconds秒）和需要执行的Service
        manager.setRepeating(AlarmManager.ELAPSED_REALTIME, triggerAtTime,
                seconds * 1000, pendingIntent);
    }
    //停止轮询服务
    public static void stopPollingService(Context context, Class<?> cls,String action) {
        AlarmManager manager = (AlarmManager) context
                .getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent(context, cls);
        intent.setAction(action);
        PendingIntent pendingIntent = PendingIntent.getService(context, 0,
                intent, PendingIntent.FLAG_UPDATE_CURRENT);
        //取消正在执行的服务
        manager.cancel(pendingIntent);
    }
}