需求是需要每天定时休眠和唤醒，方案是使用AlarmManager和PendingIntent，实现如下：

 /**
     * time 每天几点触发
     */
    fun sendAlarmEveryday(time: Int, action: String,requestCode:Int) {
        val alarmManager = context.getSystemService(Context.ALARM_SERVICE) as AlarmManager
        val mCalendar = Calendar.getInstance(Locale.getDefault())
        mCalendar.timeInMillis = System.currentTimeMillis()
        mCalendar.set(Calendar.HOUR_OF_DAY, time)
        mCalendar.set(Calendar.MINUTE, 20)
        mCalendar.set(Calendar.SECOND, 0)
        mCalendar.set(Calendar.MILLISECOND, 0)

        val intent = Intent()
       // val intent = Intent(QfAdTvApp.app,MyReceiver::class.java)
        intent.action = action
        val pendingIntent = PendingIntent.getBroadcast(QfAdTvApp.app, requestCode, intent, PendingIntent.FLAG_CANCEL_CURRENT)
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, mCalendar.timeInMillis, AlarmManager.INTERVAL_DAY, pendingIntent)//AlarmManager.INTERVAL_DAY
}

实现很简单 就是调用alarmManager的定时重复任务方法，但是运行时却收不到广播，后来把Intent的定义改成val intent = Intent(QfAdTvApp.app,MyReceiver::class.java)才行，action是广播的action。