Intent intent = new Intent();
intent.setAction(GlobalValues.TIMER_ACTION_REPEATING);
PendingIntent sender = PendingIntent.getBroadcast(context, 0, intent, 0);
AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarm.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 5 * 1000, 3 * 1000, sender);

setRepeating(int type,long startTime,long intervalTime,PendingIntent pi)

setInexactRepeating(int type,long startTime,long intervalTime,PendingIntent pi)

//获得系统提供的AlarmManager服务的对象
AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
//Intent设置要启动的组件，这里启动广播
Intent myIntent = new Intent();
myIntent.setAction(GlobalValues.TIMER_ACTION);
//PendingIntent对象设置动作,启动的是Activity还是Service,或广播!
PendingIntent sender = PendingIntent.getBroadcast(context, 0, myIntent,0);
//注册闹钟
alarm.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 5 * 1000, sender);

set(int type,long startTime,PendingIntent pi)

Intent myIntent = new Intent();
myIntent.setAction(GlobalValues.TIMER_ACTION);
//myIntent.setAction(GlobalValues.TIMER_ACTION_REPEATING);
PendingIntent sender = PendingIntent.getBroadcast(context, 0, myIntent,0);
AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarm.cancel(sender);

 //给每个闹钟设置不同ID防止覆盖
int alarmId = SharedPreUtils.getInteger(context, "alarm_id", 0);
SharedPreUtils.setInteger(context, "alarm_id", ++alarmId);
PendingIntent sender = PendingIntent.getBroadcast(context, alarmId, myIntent, 0);

public class AlarmReceiver extends BroadcastReceiver {
 private NotificationManager m_notificationMgr = null;
 private static final int NOTIFICATION_FLAG = 3;
 @Override
 public void onReceive(Context context, Intent intent) {
  m_notificationMgr = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVIC
  if (intent.getAction().equals(GlobalValues.TIMER_ACTION_REPEATING)) {
   Log.e("alarm_receiver", "周期闹钟");
  } else if (intent.getAction().equals(GlobalValues.TIMER_ACTION)) {
   Log.e("alarm_receiver", "定时闹钟");
      Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.logo);
   Intent intent1 = new Intent(context, WriteDiaryActivity.class);
   PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent1, 0);
   Notification notify = new Notification.Builder(context)
     .setSmallIcon(R.drawable.logo) // 设置状态栏中的小图片，尺寸一般建议在24×24
     .setLargeIcon(bitmap) // 这里也可以设置大图标
     .setTicker("亲情日历") // 设置显示的提示文字
     .setContentTitle("亲情日历") // 设置显示的标题
     .setContentText("您有日记提醒哦") // 消息的详细内容
     .setContentIntent(pendingIntent) // 关联PendingIntent
     .setNumber(1) // 在TextView的右方显示的数字，可以在外部定义一个变量，点击累加setNumber(count),这时显示的和
     .getNotification(); // 需要注意build()是在API level16及之后增加的，在API11中可以使用getNotificatin()来
   notify.flags |= Notification.FLAG_AUTO_CANCEL;
   NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIF
   manager.notify(NOTIFICATION_FLAG, notify);
   bitmap.recycle(); //回收bitmap
  }
 }
}

<!--闹钟接收广播-->
<receiver android:name=".util.service.AlarmReceiver">
 <intent-filter>
  <action android:name="com.e_eduspace.TIMER_ACTION_REPEATING" />
  <action android:name="com.e_eduspace.TIMER_ACTION" />
 </intent-filter>
</receiver>

public class GlobalValues {
 // 周期性的闹钟
 public final static String TIMER_ACTION_REPEATING = "com.e_eduspace.TIMER_ACTION_REPEATING";
 // 定时闹钟
 public final static String TIMER_ACTION = "com.e_eduspace.TIMER_ACTION";
}

package com.e_eduspace.familycalendar.util;

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

import com.prolificinteractive.materialcalendarview.CalendarDay;

/**
 * 闹钟定时工具类
 *
 * @author xulei
 * @time 2016/12/13 10:03
 */

public class AlarmTimer {

 /**
  * 设置周期性闹钟
  *
  * @param context
  * @param firstTime
  * @param cycTime
  * @param action
  * @param AlarmManagerType 闹钟的类型，常用的有5个值：AlarmManager.ELAPSED_REALTIME、
  *       AlarmManager.ELAPSED_REALTIME_WAKEUP、AlarmManager.RTC、
  *       AlarmManager.RTC_WAKEUP、AlarmManager.POWER_OFF_WAKEUP
  */
 public static void setRepeatingAlarmTimer(Context context, long firstTime,
            long cycTime, String action, int AlarmManagerType) {
  Intent myIntent = new Intent();
  myIntent.setAction(action);
  PendingIntent sender = PendingIntent.getBroadcast(context, 0, myIntent, 0);
  AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
  alarm.setRepeating(AlarmManagerType, firstTime, cycTime, sender);
  //param1：闹钟类型，param1：闹钟首次执行时间，param1：闹钟两次执行的间隔时间，param1：闹钟响应动作。
 }

 /**
  * 设置定时闹钟
  *
  * @param context
  * @param cycTime
  * @param action
  * @param AlarmManagerType 闹钟的类型，常用的有5个值：AlarmManager.ELAPSED_REALTIME、
  *       AlarmManager.ELAPSED_REALTIME_WAKEUP、AlarmManager.RTC、
  *       AlarmManager.RTC_WAKEUP、AlarmManager.POWER_OFF_WAKEUP
  */
 public static void setAlarmTimer(Context context, long cycTime,
          String action, int AlarmManagerType, CalendarDay date) {
  Intent myIntent = new Intent();
  //传递定时日期
  myIntent.putExtra("date", date);
  myIntent.setAction(action);
  //给每个闹钟设置不同ID防止覆盖
  int alarmId = SharedPreUtils.getInteger(context, "alarm_id", 0);
  SharedPreUtils.setInteger(context, "alarm_id", ++alarmId);
  PendingIntent sender = PendingIntent.getBroadcast(context, alarmId, myIntent, 0);
  AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
  alarm.set(AlarmManagerType, cycTime, sender);
 }

 /**
  * 取消闹钟
  *
  * @param context
  * @param action
  */
 public static void cancelAlarmTimer(Context context, String action) {
  Intent myIntent = new Intent();
  myIntent.setAction(action);
  PendingIntent sender = PendingIntent.getBroadcast(context, 0, myIntent,0);
  AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
  alarm.cancel(sender);
 }
}