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?

Solution

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

Comments

[William Gatto Filho]

The alert, inputs, and everything else is ok. I only need to wake the phone at a desired time(this time is on me and is ok too).

[Ling Vu]

Please specify your problem and give a minimal reproducible example.

[William Gatto Filho]

Hey Ling...sorry but I can't...but It works like this I have an alarm time set by someone and it must show an Alert dialog when the time is come. I can't find something to run in the background till timeNow and alarm time aer the same and wake the screen with the alert and its functions