class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('Circle Progress Indicator Example'), ), body: Center( child:
My Flutter application heats up my MacBook Pro Late 2015 15" whenever I use a Circular Progress Indicator on the Android Emulator (Running Nougat) Steps to Reproduce Use CircleProgressIndicator Widget zoechi added framework f: material design severe: performance labels Aug 3, 2018 zoechi added...
I/flutter (18629): Null check operator used on a null valueI/flutter (18629): #0 _CircularProgressIndicatorPainter.paint (package:flutter/src/material/progress_indicator.dart:607)I/flutter (18629): #1 RenderCustomPaint._paintWithPainter (package:flutter/src/rendering/custom_paint.dart:593)I/flut...
Widget _buildIndicatorPoint(BuildContext context) { return Positioned( top: 34, child: Row( children: [ for (var i = 0; i < categoryPageData.length; i++) Container( width: 5, height: 5, margin: const EdgeInsets.only(right: 5), decoration: BoxDecoration( shape: BoxShape.circle, colo...
drawCircle 画圆 drawOval 画椭圆 drawArc 画圆弧 3. 画笔Paint 现在画布有了,我们最后还缺一个画笔,Flutter提供了Paint类来实现画笔。在Paint中,我们可以配置画笔的各种属性如粗细、颜色、样式等。如: var paint = Paint() //创建一个画笔并配置其属性 ..isAntiAlias = true //是否抗锯齿 ..style = Paint...
AnimatedScale(scale:1+progress*0.3,duration:constDuration(milliseconds:100),child:Text(tabName),), 是不是柳暗花明又一村,很简单就解决了这个问题。 indicator indicator是TabBar中另一个磨人的小妖精,由于indicator的存在,TabBar成了设计师自由发挥的重灾区,可以效果信手拈来,虽然Flutter提供了很完善的接口来给...
参见模板代码你可以试试我的库（capped_progress_indicator），它可以做你想做的事情，和Flutter最初的...
CircleAvatar (circle_avatar.dart) DataTable (data_table.dart) _DropdownMenuItemContainer (dropdown.dart) DropdownMenuItem (dropdown.dart) _DropdownRoutePage (dropdown.dart) DrawerHeader (drawer_header.dart) FlutterLogo (flutter_logo.dart) ...
If the future hasn’t finished loading yet, show a circular progress indicator. Your app now looks like this: Notice that you can still scroll the Cards horizontally. When you scroll up and down, you’ll notice the entire area scrolls! Now that you have the desired scroll behavior, it’...
child:constIcon(Icons.change_circle), ), ); } } Screenshots or Video No response Logs Logs ════════ Exception caught by rendering library ═════════════════════════════════The following _TypeError was thrown during paint():Null check operator ...