Riverpod 没有重建预期的小部件

Question

我正在试用 riverpod。当我尝试 'watch'（就像我对 provider 所做的那样）时，小部件没有更新。如果我返回并返回到此页面，它只会重建并且我会看到更改。

final randomize = Provider((_) => RandomizeChangeNotifier());
...
...
Text(
      ref.watch(randomize).randomNumber?.toString() ??
          'Generate A Random Number',
      style: TextStyle(fontSize: 16),
    )

ChangeNotifier class:

class RandomizeChangeNotifier extends ChangeNotifier {

  final random = Random();
  
  int? _randomNumber;

  get randomNumber => _randomNumber;

  int min = 0;
  int max = 0;

  generateRandomNumber(){

    _randomNumber = min + random.nextInt(max + 1 - min);
    notifyListeners();
  }

}

完整回购 link：https://github.com/Cyberavater/randomizer

Answer 1

final randomize = Provider((_) => RandomizeChangeNotifier());

应该是 ChangeNotiferProvider

final randomize = ChangeNotifierProvider((_) => RandomizeChangeNotifier());

Riverpod 没有重建预期的小部件

Riverpod is not rebulding expected widget

flutter

riverpod