Android UI How to - Regist and cancel Alarm

Question

We would like to know how to regist and cancel Alarm.
Answer

// w w  w  . j av  a  2s. c  om
import java.util.HashMap;

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

class AlarmHelper {
  public static void registAlarm(Context context, Class<?> target, int code,
      long time, HashMap<String, Object> data) {
    Intent intent = new Intent(context, target);
    for (String key : data.keySet()) {
      intent.removeExtra(key);
      intent.putExtra(key, String.valueOf(data.get(key)));
    }
    PendingIntent sender = PendingIntent.getBroadcast(context, code, intent,
        PendingIntent.FLAG_UPDATE_CURRENT);
    AlarmManager manager = (AlarmManager) context
        .getSystemService(Context.ALARM_SERVICE);
    manager.set(AlarmManager.RTC_WAKEUP, time, sender);
  }
  public static void unRegistAlarm(Context context, int code) {
    Intent intent = new Intent();
    PendingIntent sender = PendingIntent.getBroadcast(context, code, intent, 0);
    AlarmManager manager = (AlarmManager) context
        .getSystemService(Context.ALARM_SERVICE);
    manager.cancel(sender);
  }
}