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
如果你想使用MaterialButton,
=======================================
你可以添加RoundedRectangleBorder,就像这样,
MaterialButton(
onPressed: () {},
minWidth: MediaQuery.of(context).size.width * 0.4,
height: 34,
color: colorWhite,
highlightColor: colorSplash,
splashColor: colorSplash,
visualDensity: VisualDensity.compact,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(4),
side: BorderSide(
color: colorGrey,
width: 0.6,
),
),
child: Text("CANCEL"),
),
其他回答
如果你使用材质应用程序作为你的主小部件,你总是可以使用材质按钮。
Padding(
padding: EdgeInsets.symmetric(vertical: 16.0),
child: Material(
borderRadius: BorderRadius.circular(30.0),//Set this up for rounding corners.
shadowColor: Colors.lightBlueAccent.shade100,
child: MaterialButton(
minWidth: 200.0,
height: 42.0,
onPressed: (){//Actions here//},
color: Colors.lightBlueAccent,
child: Text('Log in', style: TextStyle(color: Colors.white),),
),
),
)
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
RaisedButton(
child: Text("Button"),
onPressed: (){},
shape: RoundedRectangleBorder(borderRadius: new BorderRadius.circular(30.0),
side: BorderSide(color: Colors.red))
)
在Null安全之后,使用ElevatedButton而不是RaisedButton,因为RaisedButton就像文档中说的那样被贬低了。
child: ElevatedButton(
onPressed: () {},
child: const Text('Add item to the list'),
style: ButtonStyle(
backgroundColor:
MaterialStateProperty.all<Color>(Common.buttonColor),
shape: MaterialStateProperty.all<RoundedRectangleBorder>(
RoundedRectangleBorder(
borderRadius: BorderRadius.circular(18.0),
),
),
),
),
Container(
width: yourWidth,
height: yourHeight ,
decoration: BoxDecoration(
borderRadius: radius,
gradient: yourGradient,
border: yourBorder),
child: FlatButton(
onPressed: {} (),
shape: RoundedRectangleBorder(borderRadius: radius),
.......
用同样的半径。