如何在 Flutter MaterialApp 中檢測 iOS 向后滑動手勢？

Question

我想檢測用戶何時在我的 iOS 應用程序中使用向后滑動手勢。 我該怎么做？

我創建了 CupertinoPageRoute，希望它能以某種方式與它一起工作......

    return MaterialApp(
        initialRoute: AllProductsScreen.id,

        onGenerateRoute: (RouteSettings settings) {
          switch (settings.name) {
            case AllProductsScreen.id:
              return CupertinoPageRoute(
                  builder: (_) => AllProductsScreen(), settings: settings);
            case ProductScreen.id:
              return CupertinoPageRoute(
                  builder: (_) => ProductScreen(), settings: settings);
            case FavoritesScreen.id:
              return CupertinoPageRoute(
                  builder: (_) => FavoritesScreen(), settings: settings);
            default:
              return CupertinoPageRoute(
                  builder: (_) => AllProductsScreen(), settings: settings);
          }
        },
      );

Answer 1

您可以使用onWillPop庫中的onWillPop 。

@override
Widget build(BuildContext context) {
  return ConditionalWillPopScope(
    child: _MyScreenContent(),
    onWillPop: _onWillPop,
    shouldAddCallbacks: _hasChanges,
  );
}