$select<TValue> method
Widget
$select<TValue>(
- ValueListenable<
TValue> valueListenable, { - required ValueWidgetBuilder<
TValue> ? selector(- TValue
- Widget? child,
绑定到指定 ValueListenable 当值发生变化时, 使用 selector
选择器中提供的构建方法构建 Widget
child
用于向构建方法中传入 Widget
Implementation
Widget $select<TValue>(ValueListenable<TValue> valueListenable,
{required ValueWidgetBuilder<TValue>? Function(TValue) selector,
Widget? child}) =>
$build<TValue>(valueListenable,
builder: (context, value, child) =>
(selector(value) ?? _)(context, value, child));