uuid static method
Generate a random UUID.
Implementation
static String uuid() {
final part1 = _random.nextInt(0xFFFFFFFF).toRadixString(16).padLeft(8, '0');
final part2 = _random.nextInt(0xFFFF).toRadixString(16).padLeft(4, '0');
final part3 = _random.nextInt(0xFFFF).toRadixString(16).padLeft(4, '0');
final part4 = _random.nextInt(0xFFFF).toRadixString(16).padLeft(4, '0');
final part5 = _random
.nextInt(0xFFFFFFFF)
.toRadixString(16)
.padLeft(8, '0'); // Sửa lại đây
return '$part1-$part2-$part3-$part4-$part5';
}