Flutter-设置SearchDelegate的搜索提示样式 [英] Flutter - Set search hint style of SearchDelegate

问题描述

看看Flutter的源代码，我可以看到只能使用 theme.inputDecorationTheme.hintStyle 进行推断，有什么方法可以简单地将其传递给构造函数吗?

Looking at Flutter's source code I can see that this can only be inferred using theme.inputDecorationTheme.hintStyle, is there any way to simply pass it to the constructor?

编辑:目前无法执行此操作，只能覆盖 appBarTheme 方法.我关闭线程，因为这似乎是实现它的唯一方法.

EDIT: currently there's no way to do it but only to override the appBarTheme method. I close the thread since this seems to be the only way to achieve it.

推荐答案

有一种方法可以对此进行覆盖

There's a method that you can override for that

  @override
  ThemeData appBarTheme(BuildContext context) {
    assert(context != null);
    final ThemeData theme = Theme.of(context);
    assert(theme != null);
    return theme.copyWith(
      inputDecorationTheme: theme.inputDecorationTheme.copyWith(
        hintStyle: ..., // <=() here
      ),
    );
  }

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