您好,我想使用 Flutter 为我的文本悬停颜色。但我不知道怎么办。谁能告诉我该怎么做?这是我的代码......
Text(
"Lorem ipsum dolor sit amet,\n consectetur adipiscing elit.",
style: TextStyle(
color: Colors.white,
fontSize: 10,
fontFamily: 'Poppins',
)),
Run Code Online (Sandbox Code Playgroud) flutter flutter-dependencies flutter-layout flutter-animation flutter-web
下面是我的代码:
我面临的问题=>第一个按钮也更新第二个按钮状态。
但它应该以不同的方式工作:
首先仅使用第一个,
第二个仅使用第二个
我只想实现第二个按钮的状态独立于其他按钮我需要更新什么谢谢,任何建议对我来说都会很棒
class _LinearProgressBar extends State<LinearProgressBar> {
bool loadingLinear = false;
bool loadingCircular = false;
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text("CheckBox and Radio Button Stateful"),
),
body: Center(
child: Column(
children: [
Container(
child: loadingLinear
? const LinearProgressIndicator()
: const Text("Click to download "),
),
//Here is my first button which reflects the second button state as well
ElevatedButton(
style: ElevatedButton.styleFrom(
primary: Colors.red, …Run Code Online (Sandbox Code Playgroud) 有人知道如何在颤动中创建年龄范围滑块吗?一个具有两个输入值的滑块。有点像Tinder必须选择最小和最大年龄。具有两个输入字段的滑块
帮帮我伙计们我是刚接触开发的新手我试图让这种类型的布局在这里是我想要的布局但我得到这个布局
看看布局是这里这是我的代码朋友请帮助我的朋友我已经开始了扑动的发展最近家伙我曾尝试过装箱和扩展课程以及
Home.dart
class HomeScreen extends StatefulWidget {
@override
State<StatefulWidget> createState() {
HomeScreen_Page homecreatestate() => HomeScreen_Page();
return homecreatestate();
}
}
class HomeScreen_Page extends State<HomeScreen> {
@override
Widget build(BuildContext context) {
// TODO: implement build
return new MaterialApp(
home: new Scaffold(
appBar: new AppBar(
title: new Text('Home'),
backgroundColor: primarycolor,
),
drawer: new Drawer(
child: new ListView(
children: <Widget>[
new UserAccountsDrawerHeader(
accountName: new Text('Ayub Baba'),
accountEmail: new Text('ayubbabants@gmail.com'),
currentAccountPicture: new CircleAvatar(
child: new Text(
'A',
style: new TextStyle(fontSize: 20.0, …Run Code Online (Sandbox Code Playgroud) 我想知道在Flutter中是否有模仿iOS Xcode约束的好方法,即将视图居中放置在另一个视图内(例如,垂直放置),并提供一个乘数,以使它不完全居中(沿着视图的50%向下居中)父视图),则定位为下降30%或下降70%或类似水平。
(而不是使用屏幕顶部的固定边距,我想将标题视图向下“浮动”屏幕高度的20%...)
我有以下代码:
class _MyHomePageState extends State {
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return new Scaffold(
body: new Column(
children: [
new Container(
color: JBTheme.colorGreenBrand,
height: 130.0, …Run Code Online (Sandbox Code Playgroud) 我想更改活动的bottomnavigationbar项目的图标,即,如果选择了该项目,则该图标将被填充,如果未选择,它将显示轮廓。 
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(
'Flutter Demo'
),
),
body: Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Text(
'Hell World!'
)
],
)
);
}
}
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为什么文字Hell World只能水平居中,而不是我所指定的垂直CrossAxisAligment。
是否因为这样:问题