我目前正在Flutter开发一个Android应用程序。我如何添加一个圆形按钮?
当前回答
圆边颜色容器:
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10),
border: Border.all(color: Colors.red),
),
child: Text("Some Text"),
)
其他回答
更新
由于左侧按钮现在已弃用,请使用右侧按钮。
Deprecated --> Recommended
RaisedButton --> ElevatedButton
OutlineButton --> OutlinedButton
FlatButton --> TextButton
ElevatedButton
Using StadiumBorder ElevatedButton( onPressed: () {}, child: Text('Button'), style: ElevatedButton.styleFrom(shape: StadiumBorder()), ) Using RoundedRectangleBorder ElevatedButton( onPressed: () {}, child: Text('Button'), style: ElevatedButton.styleFrom( shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(12), // <-- Radius ), ), ) Using CircleBorder ElevatedButton( onPressed: () {}, child: Text('Button'), style: ElevatedButton.styleFrom( shape: CircleBorder(), padding: EdgeInsets.all(24), ), ) Using BeveledRectangleBorder ElevatedButton( onPressed: () {}, child: Text('Button'), style: ElevatedButton.styleFrom( shape: BeveledRectangleBorder( borderRadius: BorderRadius.circular(12) ), ), )
OutlinedButton
Using StadiumBorder OutlinedButton( onPressed: () {}, child: Text('Button'), style: OutlinedButton.styleFrom( shape: StadiumBorder(), ), ) Using RoundedRectangleBorder OutlinedButton( onPressed: () {}, child: Text('Button'), style: OutlinedButton.styleFrom( shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(12), ), ), ) Using CircleBorder: OutlinedButton( onPressed: () {}, child: Text('Button'), style: OutlinedButton.styleFrom( shape: CircleBorder(), padding: EdgeInsets.all(24), ), ) Using BeveledRectangleBorder OutlinedButton( onPressed: () {}, child: Text('Button'), style: OutlinedButton.styleFrom( shape: BeveledRectangleBorder( borderRadius: BorderRadius.circular(12), ), ), )
TextButton
TextButton也类似于ElevatedButton和OutlinedButton,但是,你只能看到按钮按下的形状。
您可以简单地使用RaisedButton
Padding(
padding: EdgeInsets.only(left: 150.0, right: 0.0),
child: RaisedButton(
textColor: Colors.white,
color: Colors.black,
child: Text("Search"),
onPressed: () {},
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0),
),
),
)
输出:
更多信息:RSCoder
在容器小部件中包装一个TextButton,如下所示:
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(5),
border: Border.all(color: Colors.black),
),
child: TextButton(
onPressed: () {
// To do
},
child: Text("Go to Change Language Screen "),
),
)
还有另一种方法来做到这一点-只是使用FloatingActionButton适当的圆形按钮。
Scaffold(
appBar: AppBar(
title: const Text('Floating Action Button'),
),
body: const Center(child: Text('Press the button below!')),
floatingActionButton: FloatingActionButton(
onPressed: () {
// Add your onPressed code here!
},
backgroundColor: Colors.green,
child: const Icon(Icons.navigation),
),
)
下面是解决问题的代码。你只需要在盒子装饰中取一个有边界半径的简单容器。
new Container(
alignment: Alignment.center,
decoration: BoxDecoration(
borderRadius: BorderRadius.all(Radius.circular(15.0)),
color: Colors.blue,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Padding(
padding: const EdgeInsets.all(10.0),
child: new Text(
"Next",
style: new TextStyle(
fontWeight: FontWeight.w500,
color: Colors.white,
fontSize: 15.0,
),
),
),
],
),
),