How to set an alarm to be scheduled at an exact time after all the newest restrictions on Android?

Question

Note: I tried various solutions that are written about here on StackOverflow (example here). Please do not close this without checking if your solution from what you\'ve fou

Answer 1

I am the author of the open source project you have mentioned in your question (simple alarm clock).

I am surprised that using AlarmManager.setAlarmClock did not work for you, because my app does exactly that. The code is in the file AlarmSetter.kt. Here is a snippet:

  val pendingAlarm = Intent(ACTION_FIRED)
                .apply {
                    setClass(mContext, AlarmsReceiver::class.java)
                    putExtra(EXTRA_ID, id)
                    putExtra(EXTRA_TYPE, typeName)
                }
                .let { PendingIntent.getBroadcast(mContext, pendingAlarmRequestCode, it, PendingIntent.FLAG_UPDATE_CURRENT) }

            val pendingShowList = PendingIntent.getActivity(
                    mContext,
                    100500,
                    Intent(mContext, AlarmsListActivity::class.java),
                    PendingIntent.FLAG_UPDATE_CURRENT
            )

            am.setAlarmClock(AlarmManager.AlarmClockInfo(calendar.timeInMillis, pendingShowList), pendingAlarm)

Basically it is nothing special, just make sure that intent has an action and a target class, which is a broadcast receiver in my case.