DART

flutter delay

Future.delayed(Duration(milliseconds: 100), () {
  // Do something
});

flutter delay

Timer(Duration(seconds: 5), () {
  print(" This line is execute after 5 seconds");
});

dart timer delay

Timer(Duration(seconds: 3), () {
  print("Yeah, this line is printed after 3 second");
});

// repeatedly :
Timer.periodic(Duration(seconds: 5), (timer) {
  print(DateTime.now());
});

dart delay

In Async Code
	await Future.delayed(Duration(seconds: 1));
    
In Sync Code

  import 'dart:io';
  sleep(Duration(seconds:1));

timer.delay flutter

Future.delayed(Duration(milliseconds: 100), () {
  After milliseconds of 100 
you will write function it will executes
});

delay in flutter

// just to delay 500 miliSeconds
await Future.delayed(const Duration(milliseconds: 500));

Delay in flutter

Future.delayed(Duration(seconds: 2), () { // <-- Delay here
  setState(() {
    _isLoading = false; // <-- Code run after delay
  });
});