我试图使用TextField
改变我的BorderSide
边框的颜色,但它不起作用。
这是我的代码。
new TextField(
decoration: new InputDecoration(
border: new OutlineInputBorder(
borderSide: new BorderSide(color: Colors.teal)
),
hintText: 'Tell us about yourself',
helperText: 'Keep it short, this is just a demo.',
labelText: 'Life story',
prefixIcon: const Icon(Icons.person, color: Colors.green,),
prefixText: ' ',
suffixText: 'USD',
suffixStyle: const TextStyle(color: Colors.green)),
)
)
结果截图如下所示。
新的方法是使用这样的enabledBorder
:
new TextField(
decoration: new InputDecoration(
enabledBorder: const OutlineInputBorder(
borderSide: const BorderSide(color: Colors.grey, width: 0.0),
),
focusedBorder: ...
border: ...
),
)
由于默认主题设置为屏幕,因此不会更改。
因此,只需通过使用新的ThemeData()包装TextField来更改您正在绘制的小部件
child: new Theme(
data: new ThemeData(
primaryColor: Colors.redAccent,
primaryColorDark: Colors.red,
),
child: new TextField(
decoration: new InputDecoration(
border: new OutlineInputBorder(
borderSide: new BorderSide(color: Colors.teal)),
hintText: 'Tell us about yourself',
helperText: 'Keep it short, this is just a demo.',
labelText: 'Life story',
prefixIcon: const Icon(
Icons.person,
color: Colors.green,
),
prefixText: ' ',
suffixText: 'USD',
suffixStyle: const TextStyle(color: Colors.green)),
),
));
更改primaryColor
和primaryColorDark
颜色的代码不会改变边框的颜色,只有点击颜色保持黑色
必须更改的属性是hintColor
BorderSide
不应该用于此,你需要改变主题。
要使红色默认将主题放在MaterialApp(theme: ...)
中并更改特定小部件的主题,例如将默认红色更改为小部件的黄色,请使用以下内容围绕小部件:
new Theme(
data: new ThemeData(
hintColor: Colors.yellow
),
child: ...
)
下面是代码和gif:
请注意,如果我们将primaryColor
颜色定义为黑色,则通过点击小部件将其选择为黑色
但是要更改窗口小部件中的标签和文本,我们需要将主题设置为InputDecorationTheme
以黄色开头的小部件有自己的主题,以红色开头的小部件具有使用函数buildTheme()
定义的默认主题
import 'package:flutter/material.dart';
void main() => runApp(new MyApp());
ThemeData buildTheme() {
final ThemeData base = ThemeData();
return base.copyWith(
hintColor: Colors.red,
primaryColor: Colors.black,
inputDecorationTheme: InputDecorationTheme(
hintStyle: TextStyle(
color: Colors.blue,
),
labelStyle: TextStyle(
color: Colors.green,
),
),
);
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
theme: buildTheme(),
home: new HomePage(),
);
}
}
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => new _HomePageState();
}
class _HomePageState extends State<HomePage> {
String xp = '0';
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(),
body: new Container(
padding: new EdgeInsets.only(top: 16.0),
child: new ListView(
children: <Widget>[
new InkWell(
onTap: () {},
child: new Theme(
data: new ThemeData(
hintColor: Colors.yellow
),
child: new TextField(
decoration: new InputDecoration(
border: new OutlineInputBorder(),
hintText: 'Tell us about yourself',
helperText: 'Keep it short, this is just a demo.',
labelText: 'Life story',
prefixIcon: const Icon(Icons.person, color: Colors.green,),
prefixText: ' ',
suffixText: 'USD',
suffixStyle: const TextStyle(color: Colors.green)),
)
)
),
new InkWell(
onTap: () {},
child: new TextField(
decoration: new InputDecoration(
border: new OutlineInputBorder(
borderSide: new BorderSide(color: Colors.teal)
),
hintText: 'Tell us about yourself',
helperText: 'Keep it short, this is just a demo.',
labelText: 'Life story',
prefixIcon: const Icon(Icons.person, color: Colors.green,),
prefixText: ' ',
suffixText: 'USD',
suffixStyle: const TextStyle(color: Colors.green)),
)
)
],
),
)
);
}
}
好吧,我真的不知道为什么分配给边框的颜色不起作用。但您可以使用文本字段的其他边框属性控制边框颜色。他们是:
代码段如下:
TextField(
enabled: false, // to trigger disabledBorder
decoration: InputDecoration(
filled: true,
fillColor: Color(0xFFF2F2F2),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.all(Radius.circular(4)),
borderSide: BorderSide(width: 1,color: Colors.red),
),
disabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.all(Radius.circular(4)),
borderSide: BorderSide(width: 1,color: Colors.orange),
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.all(Radius.circular(4)),
borderSide: BorderSide(width: 1,color: Colors.green),
),
border: OutlineInputBorder(
borderRadius: BorderRadius.all(Radius.circular(4)),
borderSide: BorderSide(width: 1,)
),
errorBorder: OutlineInputBorder(
borderRadius: BorderRadius.all(Radius.circular(4)),
borderSide: BorderSide(width: 1,color: Colors.black)
),
focusedErrorBorder: OutlineInputBorder(
borderRadius: BorderRadius.all(Radius.circular(4)),
borderSide: BorderSide(width: 1,color: Colors.yellowAccent)
),
hintText: "HintText",
hintStyle: TextStyle(fontSize: 16,color: Color(0xFFB3B1B1)),
errorText: snapshot.error,
),
controller: _passwordController,
onChanged: _authenticationFormBloc.onPasswordChanged,
obscureText: false,
),
希望它能帮到你。
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(10.0),
borderSide: BorderSide(color: Colors.red)
),