我有一组警报,我需要在重启后保留。我尝试过使用启动接收器,但它们不会重新启动。我不确定我是否理解启动接收器以及如何重新启动所有警报。我已经有一个接收器用于我的通知,但不知道我是否可以使用相同的接收器或者我是否需要新接收器?
有人能指点我任何好的教程或帮助我吗?
干杯
代码:
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);
}
}
NotificationMenu是通知,这就是我使用AlarmManager
的原因答案 0 :(得分:47)
我不确定我是否理解启动接收器以及如何重新启动所有警报。
只需致电您的代码,即可致电setRepeating()
上的AlarmManager
(或其他)。
例如,在this sample project中,PollReceiver
设置为接收BOOT_COMPLETED
。在onReceive()
中,它会重新安排闹钟:
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);
}
}