Android的AlarmManager重启后 [英] Android AlarmManager after reboot

问题描述

我有一组，我需要不断地重启后报警。我使用已经试过上启动接收器，但他们会不会重新开始。我不知道如果我理解引导接收器，以及如何重新启动所有报警。我已经有一个接收器，我的通知，但不知道我是否可以使用相同的接收器，或者如果我需要一个新的吗？

任何人都可以点我的任何好的教程或帮助我吗？

干杯

code：

 数据库处理器DB =新的数据库处理器（本）;
    名单＆LT; UAlarm＆GT;报警= db.getAllAlarms（）;
    AlarmManager AM =（AlarmManager）getSystemService（Context.ALARM_SERVICE）;
    对于（UAlarm UA：报警）{
        字符串程序= ua.getTitle（）;
        字符串的startTime = ua.getStart（）;
        串endTime的= ua.getEnd（）;
        串nowPlaying = ua.getChannel（）;
        db.addAlarm（新UAlarm（计划的startTime，endTime的，nowPlaying，））;
        最后UAlarm UT =新UAlarm（）;
        ut.setTitle（节目）;
        ut.setStart（startTime时）;
        ut.setEnd（endTime的）;
        ut.setChannel（nowPlaying）;
        ut.setId（db.getLastEntered（））;
        的String [] BLA = startTime.split（：）;
        INT小时=的Integer.parseInt（BLA [0] .trim（））;
        INT分钟=的Integer.parseInt（BLA [1] .trim（））;
        分钟 -  = 2;
        日历CAL = Calendar.getInstance（）;
        cal.set（Calendar.HOUR_OF_DAY，小时）;
        cal.set（Calendar.MINUTE，分钟）;
        意图int​​enta =新的意图（这一点，NotificationMenu.class）;
        字符串名称=程序;
        intenta.putExtra（姓名，名）;
        intenta.putExtra（ID，db.getLastEntered（））;
          PendingIntent pendingIntent = PendingIntent.getBroadcast（这一点，ua.getId（）
            intenta，PendingIntent.FLAG_CANCEL_CURRENT）;
          am.set（AlarmManager.RTC_WAKEUP，
            cal.getTimeInMillis（），pendingIntent）;
    }
}
 

与NotificationMenu被通知，这就是为什么我使用AlarmManager

解决方案

  

我不知道如果我理解引导接收器，以及如何重新启动所有报警。

刚刚打电话给你的code调用 setRepeating（）（或其他）的 AlarmManager 。

例如，在此示例项目， PollReceiver 设置为接收 BOOT_COMPLETED 。在的onReceive（），它重新安排报警：

 包com.commonsware.android.schedsvc;

进口android.app.AlarmManager;
进口android.app.PendingIntent;
进口android.content.BroadcastReceiver;
进口android.content.Context;
进口android.content.Intent;
进口android.os.SystemClock;

公共类PollReceiver扩展的BroadcastReceiver {
  私有静态最终诠释周期= 5000;

  @覆盖
  公共无效的onReceive（上下文ctxt，意图我）{
    scheduleAlarms（ctxt）;
  }

  静态无效scheduleAlarms（上下文ctxt）{
    AlarmManager经理=
        （AlarmManager）ctxt.getSystemService（Context.ALARM_SERVICE）;
    意图I =新的意图（ctxt，ScheduledService.class）;
    PendingIntent圆周率= PendingIntent.getService（ctxt，0，I，0）;

    mgr.setRepeating（AlarmManager.ELAPSED_REALTIME，
                     SystemClock.elapsedRealtime（）+周期，周期，PI）;
  }
}
 

I have a set of alarms that I need to keep after reboot. I've tried using on an boot receiver but they won't start again. I'm not sure if I understand the boot receiver and how to then restart all the alarms. I already have one receiver for my notifications, but don't know whether I can use the same receiver or if I need a new one?

Could anyone point me to any good tutorials or help me out?

Cheers

Code :

    DatabaseHandler db = new DatabaseHandler(this);  
    List<UAlarm> alarms = db.getAllAlarms();        
    AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);  
    for (UAlarm ua : alarms) {  
        String programme = ua.getTitle();  
        String startTime = ua.getStart();  
        String endTime = ua.getEnd();  
        String nowPlaying = ua.getChannel();  
        db.addAlarm(new UAlarm(programme, startTime, endTime, nowPlaying, ""));  
        final UAlarm ut = new UAlarm();  
        ut.setTitle(programme);  
        ut.setStart(startTime);  
        ut.setEnd(endTime);  
        ut.setChannel(nowPlaying);  
        ut.setId(db.getLastEntered());  
        String [] bla = startTime.split(":");  
        int hour = Integer.parseInt(bla[0].trim());  
        int minute = Integer.parseInt(bla[1].trim());  
        minute -= 2;  
        Calendar cal = Calendar.getInstance();  
        cal.set(Calendar.HOUR_OF_DAY, hour);  
        cal.set(Calendar.MINUTE, minute);  
        Intent intenta = new Intent(this, NotificationMenu.class);  
        String name = programme;  
        intenta.putExtra("name", name);  
        intenta.putExtra("id", db.getLastEntered());  
          PendingIntent pendingIntent = PendingIntent.getBroadcast(this, ua.getId(),  
            intenta, PendingIntent.FLAG_CANCEL_CURRENT);  
          am.set(AlarmManager.RTC_WAKEUP,  
            cal.getTimeInMillis(), pendingIntent);      
    }  
}  

with NotificationMenu being the notifications, which is why I'm using the AlarmManager

解决方案

I'm not sure if I understand the boot receiver and how to then restart all the alarms.

Just call your code to call setRepeating() (or whatever) on AlarmManager.

For example, in this sample project, PollReceiver is set to receive BOOT_COMPLETED. In onReceive(), it reschedules the alarms:

package com.commonsware.android.schedsvc;

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

public class PollReceiver extends BroadcastReceiver {
  private static final int PERIOD=5000;

  @Override
  public void onReceive(Context ctxt, Intent i) {
    scheduleAlarms(ctxt);
  }

  static void scheduleAlarms(Context ctxt) {
    AlarmManager mgr=
        (AlarmManager)ctxt.getSystemService(Context.ALARM_SERVICE);
    Intent i=new Intent(ctxt, ScheduledService.class);
    PendingIntent pi=PendingIntent.getService(ctxt, 0, i, 0);

    mgr.setRepeating(AlarmManager.ELAPSED_REALTIME,
                     SystemClock.elapsedRealtime() + PERIOD, PERIOD, pi);
  }
}

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