Flutter常用的容器类有:Center、Padding、AnimatedPadding、Container、SizedBox、FractionallySizedBox、SizedOverflowBox、OverflowBox、LimtedBox、ConstrainedBox、DecoratedBox、FittedBox、RotateBox、UnconstrainedBox、Transform、Align. 一、Center Center容器用来居中widget 构造函数 const Center({ Key key, double widthFactor, ...
1.使用Padding或Align、Expanded等设置样式。也可以使用Container。1.装饰除此之外。
Expanded 在列的子项之间添加间隙,因此页面顶部和第一行之间有 10% 的“间隙”,两行之间还有 10% 的“间隙” 这感觉不太对,我似乎仅限于 XX% 的填充量,我想尝试避免特定的像素量...,因此无论屏幕大小如何,布局都保持一致 Column( children: [ Expanded(flex: 1, child:Container()),...- 使用空容器...
/// /// /// ## 专业提示: /// /// * [child]应由基本和简单的[Widget]构成,例如[Container]、[Row]和[Column],以避免副作用。 /// /// * 使用一个[Shimmer]来包装[Widget]列表,而不是多个[Shimmer]。 /// @immutable class Shimmer extends StatefulWidget { final Widget child; final ...
( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ const Text( 'You have pushed the button this many times:', ), Observer( builder: (_) => Text( '${_counter.value}', style: const TextStyle(fontSize: 20), )), ], ), ), floatingActionButton: Floating...
Make the encoding of a YamlNode to a String more explicit. #161270 merged Jan 8, 2025 Normalize the translation column of the color matrix. #161109 merged Jan 8, 2025 Rename native_driver to android_{driver_extensions|engine_test} #161263 merged Jan 8, 2025 [Impeller] reland: fi...
1、贝壳找房开源的Bruno，组件很全了：https://bruno.ke.com/ 2、老孟基于 Element 做了一个组件库...
returnCustomScrollView(slivers:[...// 固定高度内容SliverToBoxAdapter(child:Container(height:200,color:Colors.greenAccent,child:constCenter(child:Text('固定高度内容')),),), // tabView 内容SliverToBoxAdapter(child:DefaultTabController(length:3,child:Column(children:[constTabBar(tabs:[Tab(text:'Tab...
// final controller = Get.put(SomeController()); @override Widget build(BuildContext context) { return Container( child: Text(controller.someText.value); ); } } class SomePage extends StatelessWidget { const SomePage({Key? key}) :super(key: key); @override Widget build(BuildContext context...
return new Container( height: 40.0, child: new Center( child: new Text("类型2"), ), color: Colors.blue, ); } else if (index == 14) { return new Container( height: 40.0, child: new Center( child: new Text("类型3"), ), ...