无法更改 TextField 边框颜色

Question

我正在尝试使用BorderSide更改我的TextField边框的颜色，但它不起作用。

这是我下面的代码。

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。

Answer 1

这样做的新方法是使用enabledBorder像这样：

new TextField(
  decoration: new InputDecoration(
    enabledBorder: const OutlineInputBorder(
      borderSide: const BorderSide(color: Colors.grey, width: 0.0),
    ),
    focusedBorder: ...
    border: ...
  ),
)

Answer 2

由于设置到屏幕的默认主题，这不会改变。

因此，只需通过用new ThemeData()包装 TextField 来为您正在绘制的小部件更改它们

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)),
          ),
        ));

Answer 3

好吧，我真的不知道为什么分配给边框的颜色不起作用。 但是您可以使用文本字段的其他边框属性来控制边框颜色。 他们是：

1. disabledBorder：当 enabled 设置为 false 时被激活
2. enabledBorder：当 enabled 设置为 true 时激活（默认情况下 TextField 的 enabled 属性为 true）
3. errorBorder：在出现错误时激活（即验证失败）
4. focusedBorder：当我们单击/聚焦于 TextField 时被激活。
5. focusedErrorBorder：在出现错误时激活，我们当前专注于该 TextField。

下面给出了一个代码片段：

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,
),

禁用边框：

---

启用边框：

重点边框：

错误边界：

errorFocusedBorder:

希望对你有帮助。

Answer 4

更改primaryColor和primaryColorDark颜色的代码不会更改边框的颜色，只有在点击颜色后才保持黑色

必须改变的属性是hintColor

BorderSide不应该用于此，您需要更改 Theme。

要使红色默认将主题放在MaterialApp(theme: ...)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，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，它会被选择为黑色

但是要更改小部件内部的标签和文本，我们需要将主题设置为InputDecorationTheme

以黄色开头的小部件具有自己的主题，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)),
              )
            )
          ],
        ),
      )
    );
  }
}

Answer 5

enabledBorder: OutlineInputBorder(
  borderRadius: BorderRadius.circular(10.0),
  borderSide: BorderSide(color: Colors.red)
),

Answer 6

最好和最有效的解决方案是在你的主类中添加主题并添加这样的输入装饰。

theme: ThemeData(
    inputDecorationTheme: InputDecorationTheme(
        border: OutlineInputBorder(
           borderSide: BorderSide(color: Colors.pink)
        )
    ),
)

Answer 7

TextField(
  decoration: InputDecoration(
    border: OutlineInputBorder(
      borderRadius: BorderRadius.all(Radius.circular(4.0)),
      borderSide: BorderSide(width: 1.0),
    ),
    enabledBorder: OutlineInputBorder(
      borderSide: BorderSide(color: Colors.grey),
    ),
    focusedBorder: OutlineInputBorder(
      borderSide: BorderSide(color: Colors.blueGrey),
    ),
    errorBorder: OutlineInputBorder(
      borderSide: BorderSide(color: Colors.redAccent),
    ),
    focusedErrorBorder: OutlineInputBorder(
      borderSide: BorderSide(color: Colors.orangeAccent),
    ),
    disabledBorder: OutlineInputBorder(
      borderSide: BorderSide(color: Colors.white),
    ),
    contentPadding: EdgeInsets.all(10.0),
    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),
  ),
),

Answer 8

1. 在你的 lib 文件中

2. 创建一个名为colors的文件夹。

3. 在colors文件夹中创建一个 dart 文件并将其命名为color 。

4. 将此代码粘贴在其中

   const MaterialColor primaryOrange = MaterialColor( _orangePrimaryValue, <int, Color>{ 50: Color(0xFFFF9480), 100: Color(0xFFFF9480), 200: Color(0xFFFF9480), 300: Color(0xFFFF9480), 400: Color(0xFFFF9480), 500: Color(0xFFFF9480), 600: Color(0xFFFF9480), 700: Color(0xFFFF9480), 800: Color(0xFFFF9480), 900: Color(0xFFFF9480), }, ); const int _orangePrimaryValue = 0xFFFF9480;

5. 转到您的main.dart文件并将此代码放在您的主题中

   theme:ThemeData( primarySwatch: primaryOrange, ),

6. 像这样import 'colors/colors.dart'在main.dart导入color文件夹；

Answer 9

border: OutlineInputBorder(borderSide: BorderSide(color: CustomColors.primaryColor),),

Answer 10

我们已尝试使用粘贴的代码段自定义搜索框。 这段代码对 Flutter 中的所有TextFiled装饰都很有用。 希望这个片段对其他人有帮助。

Container(
        margin: EdgeInsets.fromLTRB(0.0, 10.0, 0.0, 10.0),
        child:  new Theme(
          data: new ThemeData(
           hintColor: Colors.white,
            primaryColor: Colors.white,
            primaryColorDark: Colors.white,
          ),
          child:Padding(
          padding: EdgeInsets.all(10.0),
          child: TextField(
            style: TextStyle(color: Colors.white),
            onChanged: (value) {
              filterSearchResults(value);
            },
            controller: editingController,
            decoration: InputDecoration(
                labelText: "Search",
                hintText: "Search",
                prefixIcon: Icon(Icons.search,color: Colors.white,),
                enabled: true,
                enabledBorder: OutlineInputBorder(
                  borderSide: BorderSide(color: Colors.white),
                    borderRadius: BorderRadius.all(Radius.circular(25.0))),
                border: OutlineInputBorder(
                    borderSide: const BorderSide(color: Colors.white, width: 0.0),
                    borderRadius: BorderRadius.all(Radius.circular(25.0)))),
          ),
        ),
        ),
      ),

Answer 11

您可以将此代码用于底部工作表以及普通文本字段：

class TextFieldForDropDown extends StatelessWidget {
      final String title;
      final String hintText;
      final TextEditingController textEditingController;
      bool isPassword;
      final Function onTap;
      final bool enable;
      TextFieldForDropDown({this.title, this.hintText, this.textEditingController, this.isPassword = false, this.onTap, this.enable});
      @override
      Widget build(BuildContext context) {
    
        var titleTextStyle = TextStyle(
          color: Color(0xff9098C8),
          fontSize: 12,
          fontWeight: FontWeight.w400,
          fontFamily: "Muli",
        );
    
        var textFieldTextStyle = TextStyle(
          color: Colors.white,
          fontSize: 14,
          fontWeight: FontWeight.w400,
          fontFamily: "Muli",
        );
    
        var borderSides = OutlineInputBorder(borderSide: new BorderSide(color: Color(0xff38406B)));
        var borderSides1 = OutlineInputBorder(borderSide: new BorderSide(color: Color(0xffdae4ff)));
    
        return InkWell(
          onTap: onTap,
          child: Container(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(this.title, style: titleTextStyle),
                SizedBox(height: 8),
                TextFormField(
                  enabled: enable,
                  // onTap: onTap,
                  obscureText: isPassword,
                  style: textFieldTextStyle,
                  decoration: InputDecoration(
                    contentPadding: EdgeInsets.symmetric(horizontal: 8, vertical: 8),
                    hintText: this.hintText,
                    hintStyle: titleTextStyle,
                    border: textEditingController.text != "" ? borderSides1 :borderSides,
                    enabledBorder:  textEditingController.text != "" ? borderSides1 :borderSides,
                    disabledBorder: textEditingController.text != "" ? borderSides1 :borderSides,
                    focusedBorder: OutlineInputBorder(borderSide: new BorderSide(color: Color(0xffdae4ff))),
                  ),
                  controller: textEditingController,
                )
              ],
            ),
          ),
        );
      }
    }

并像这样使用：

TextFieldForDropDown(
                                title: 'Phone Number*',
                                hintText: '+123-22-223-00',
                                textEditingController: viewModel.phoneController,
                              ),

Answer 12

Padding(
            padding: EdgeInsets.symmetric(vertical: 10, horizontal: 40),
            child: TextField(
              cursorColor: Color.fromRGBO(25, 118, 218, 1),
              decoration: new InputDecoration(
                border: new OutlineInputBorder(
                  borderSide:
                      new BorderSide(color: Color.fromRGBO(25, 118, 218, 1)),
                ),
                focusedBorder: new OutlineInputBorder(
                  borderSide:
                      new BorderSide(color: Color.fromRGBO(25, 118, 218, 1)),
                ),
                labelText: "Edit Phone",
                labelStyle: TextStyle(
                  color: Colors.grey,
                ),
                prefixIcon: const Icon(
                  Icons.phone_outlined,
                  color: Color.fromRGBO(25, 118, 218, 1),
                ),
              ),
            ),
          ),

晚点再谢我 ：）