Question

我的应用是使用MaterialApp作为根窗口小部件而构建的。在此材料应用程序中，我添加了一个主题，如下所示：

MaterialApp(
  theme: myTheme,
  home: MyHomePage(),
  ...
)

final ThemeData myTheme = _buildTheme();

ThemeData _buildTheme() {
  final ThemeData base = ThemeData.light();
  return base.copyWith(
    ...
      textTheme: _buildMyTextTheme(base.textTheme),
      primaryTextTheme: _buildMyTextTheme(base.primaryTextTheme),
      accentTextTheme: _buildMyTextTheme(base.accentTextTheme),
      pageTransitionsTheme: PageTransitionsTheme(builders: {
        TargetPlatform.iOS: CupertinoPageTransitionsBuilder(),
      }));
}

TextTheme _buildMyTextTheme(TextTheme base) {
  return base
      .copyWith(
        headline:
            base.headline.copyWith(fontSize: 20.0, fontWeight: FontWeight.w500),
        title: base.title.copyWith(fontSize: 18.0, fontWeight: FontWeight.w400),
        subhead:
            base.subhead.copyWith(fontSize: 16.0, fontWeight: FontWeight.w400),
        body1: base.body1.copyWith(fontSize: 14.0, fontWeight: FontWeight.w400),
        body2: base.body2.copyWith(fontSize: 14.0, fontWeight: FontWeight.w500),
        caption: base.caption.copyWith(
          fontWeight: FontWeight.w400,
          fontSize: 12.0,
        ),
      )
      .apply(
        fontFamily: 'myfont',
        displayColor: Colors.black,
        bodyColor: Colors.black,
      );
}

我已经使用Theme.of(context.textTheme在整个应用程序中沿小部件树设置了样式。

例如：到我使用的标题

Text('Title', style:Theme.of(context).textTheme.title),

为我使用的字幕

Text('Title', style:Theme.of(context).textTheme.subhead),

它按预期工作。但是，如果当前平台是ios，那么我想使用CupertinoApp，因为它提供了原生ios的感觉

列表项
通过向后滑动，页面将不可用。滚动四肢会触发iOS风格的弹簧过度滚动。

如何使用相同的文本主题添加CupertionApp？

Answer 1

您可以使用auto myints = torch::Tensor({10, 20, 30, 40, 50, 60, 70}); auto myvector = torch::ones({18}); myvector.slice(0, 4, 7) = myints.slice(0,0,3);小部件包装CupertinoApp：

Theme

将ThemeData用作CupertinoApp的主题

1 个答案: