How to automatically awake the application in flutter?

Question

I am coding an alarm on my own and I would like that the alarm would wake up the phone and show the Alert Dialog. Can someone give me some insight on how to do this please?

Answer 1

You can use android_alarm_maganer to achive what you need. Simply run it every second or so and check if DateTime.now() meets your criteria.

Example:

import 'package:android_alarm_manager/android_alarm_manager.dart';

void checkAlarms() {
  if(DateTime().now == alarm){
   //Do something
  }
}

main() async {
  final int helloAlarmID = 0;
  await AndroidAlarmManager.initialize();
  runApp(...);
  await AndroidAlarmManager.periodic(const Duration(seconds: 1), helloAlarmID, checkAlarms);
}

Then you can run another Activity as described here