child: Container( width:200, height:200, clipBehavior: Clip.hardEdge, decoration:constBoxDecoration(color: Colors.green), child: CustomPaint( painter: CustomTextPainter( fontSize:16, lineHeight:1, ), ), ), ), ); } }classCustomTextPainterextendsCustomPainter{finaldoublefontSize;finaldoublelineH...
TextField的高度超出外层Container,导致文本无法居中对齐。 解决办法 1.设置外层Container的高度和TextField的默认高度一样,即Container设置为45 image.png 2.不修改Container的高度,而是给Container设置padding(如果padding比较大,TextField会无法显示全) image.png 3.第三种,给TextField 里面的 decoration 对应的 InputDe...
方案一:直接使用MaterialButton 我们看下MaterialButton中提供了2个属性:minWidth和height,我们直接设置这2个属性的宽度或者高度就可以,如果想宽度占满全屏可以直接设置成double.infinity,如下: MaterialButton( onPressed: (){},child:Text("宽度占满了"),minWidth:double.infinity,height:50.0,color:Colors.green,text...
body: Container( color: Colors.pinkAccent, child: Center( child: Container( color: Colors.yellow, height: height / 2, // half of the screen height size width: width / 2, // half of the screen width size ), ), ), } 效果: LayoutBuilder LayoutBuilder非常灵活。你可以根据父Widget可用的...
(child: ListView.builder(itemCount:60,itemBuilder: (BuildContext context, int index) { returnClipRect(child: BackdropFilter.grouped(filter: ui.ImageFilter.blur(sigmaX:40,sigmaY:40, ),child:Container(color: Colors.black.withOpacity(0.2),height:200,child: constText('Blur item'), ), ), );...
Widgetbuild(BuildContextcontext){returnBackdropGroup(child:ListView.builder(itemCount:60,itemBuilder:(BuildContextcontext,intindex){returnClipRect(child:BackdropFilter.grouped(filter:ui.ImageFilter.blur(sigmaX:40,sigmaY:40,),child:Container(color:Colors.black.withOpacity(0.2),height:200,child:constText...
"),//appbar的title),body:Center(//脚手架的第二个组成是body 给body一个center组件做内容child:Container(height:400.0,width:300.0,//color: Colors.pinkAccent,margin:EdgeInsets.symmetric(horizontal:010.0),decoration:newBoxDecoration(gradient:constLinearGradient(colors:[Colors.lightBlue,Colors.green],begin...
classHomePageextendsStatelessWidget{constHomePage({super.key});@overrideWidgetbuild(BuildContext context){finalsize=MediaQuery.of(context).size;returnContainer(width:300,height:300,color:Colors.red,child:constAlign(alignment:Alignment.center,child:Text("你好 Flutter"),));}} ...
height: 240, fit: BoxFit.cover, ); } } class _SubHeader extends StatelessWidget { const _SubHeader({ Key key, }) : super(key: key); @override Widget build(BuildContext context) { return Container( padding: const EdgeInsets.all(32), ...
draggable_container v1.0.7+2 A Very Smooth Draggable Widget Container. Each children is Draggable, Deletable and Fixable. Support SliverGridDelegate! License: MIT License Platform: android, ios, windows, linux, macos, web Published: 2021-04-03T20:23:04.511923Z Total: 1 w_popup_menu v1.0...