didChaneDependencies 不工作/颤振

Question

这是我尝试使用 didChaneDependencies 的屏幕之一的代码：

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:shop/screens/cart_screen.dart';

import '../widgets/products_grid.dart';
import '../widgets/badge.dart';
import '../widgets/app_drawer.dart';

import '../providers/products.dart';
import '../providers/cart.dart';

enum FilterOptions {
  Favorites,
  All,
}

class ProductsOverviewScreen extends StatefulWidget {
  @override
  _ProductsOverviewScreenState createState() => _ProductsOverviewScreenState();
}

class _ProductsOverviewScreenState extends State<ProductsOverviewScreen> {
  var _showOnlyFavorite = false;
  var _isInit = true;
  @override
  void initState() {
    print('initState');
    super.initState();
  }
@override
  void didChaneDependencies() {
 print('didChaneDependencies');
    super.didChangeDependencies();
  }

问题是它没有启动。编译器使用以下消息突出显示它：

The method doesn't override an inherited method. Try updating this class to match the superclass, or removing the override annotation.

我确实尝试删除 @override ，但这并没有解决问题，我看不到 print('didChaneDependencies'); 在调试器中。

Answer 1

修复函数名称的拼写问题，您在 didChangeDependencies 函数名称

中缺少一个 G

  @override
  void didChangeDependencies() { 
   ....

didChaneDependencies 不工作/颤振

didChaneDependencies not working / flutter

overriding

flutter