Android 带有背景形状和后退按钮的自定义工具栏
我正在制作带有背景形状的自定义工具栏,但我的后退按钮正在与文本正确对齐Android 带有背景形状和后退按钮的自定义工具栏,android,dart,flutter,Android,Dart,Flutter,我正在制作带有背景形状的自定义工具栏,但我的后退按钮正在与文本正确对齐 Widget _toolBar(String headerText){ return Container( decoration: BoxDecoration( color: MyColors.greenHeader, borderRadius: new BorderRadius.only(
Widget _toolBar(String headerText){
return Container(
decoration: BoxDecoration(
color: MyColors.greenHeader,
borderRadius: new BorderRadius.only(
bottomLeft: const Radius.circular(15.0),
bottomRight: const Radius.circular(15.0))
),
child:Center(child: Stack(
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Expanded(
flex: 1,
child:Text(headerText,
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontSize: 18.0,
)
),),
],),
Row(
mainAxisAlignment: MainAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Flexible(
flex: 1,
child:IconButton(
icon: new Icon(Icons.arrow_back_ios),
color: Colors.white,
onPressed: (){},
)
),
],),
],
),)
);
}
您可以尝试将文本和图标按钮小部件居中
你可以这样试试
appBar: PreferredSize(
preferredSize: Size(null, 100),
child: Container(
width: MediaQuery.of(context).size.width,
height: 100,
child: ClipRRect(
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(15),
bottomRight: Radius.circular(15)
),
child: Container(
color: Colors.green,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Icon(Icons.navigate_before,size: 40,),
Text("Center",style: TextStyle(fontSize: 30),),
Icon(Icons.navigate_before,color: Colors.transparent,),
],
),
),
),
),
),
能否添加用于调用_toolBar的代码?@diegoveloper查看我的更新代码。您是否尝试将两行的crossAxisAlignment设置为crossAxisAlignment.center?仍然无效
Stack(
children: <Widget>[
Center(
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Expanded(
flex: 1,
child: Text(headerText,
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontSize: 18.0,
)),
),
],
),
),
Center(
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Flexible(
flex: 1,
child: IconButton(
icon: new Icon(Icons.arrow_back_ios),
color: Colors.white,
onPressed: () {},
)),
],
),
),
],
),
appBar: PreferredSize(
preferredSize: Size(null, 100),
child: Container(
width: MediaQuery.of(context).size.width,
height: 100,
child: ClipRRect(
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(15),
bottomRight: Radius.circular(15)
),
child: Container(
color: Colors.green,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Icon(Icons.navigate_before,size: 40,),
Text("Center",style: TextStyle(fontSize: 30),),
Icon(Icons.navigate_before,color: Colors.transparent,),
],
),
),
),
),
),