无法更改TextField边框颜色

时间：2018-05-01 19:09:46

标签： dart flutter

我正在尝试使用TextField更改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。

Screenshot

10 个答案:

答案 0 :(得分：21)

由于默认主题设置在屏幕上，因此没有改变。

因此，只需使用 new ThemeData（）

包装TextField，即可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)),
          ),
        ));

enter image description here

答案 1 :(得分：20)

执行此操作的新方法是像这样使用enabledBorder：

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

答案 2 :(得分：9)

更改primaryColor和primaryColorDark颜色的代码不会更改边框的颜色，只有在点按颜色后才会保持黑色

必须更改的属性为hintColor

BorderSide不应该用于此，您需要更改主题。

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，请使用以下内容包围小部件： / p> 

new Theme(
  data: new ThemeData(
    hintColor: Colors.yellow
  ),
  child: ...
)

以下是代码和gif：

请注意，如果我们将primaryColor颜色定义为黑色，则点按小部件会选择黑色

但要更改小部件内的标签和文字，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

enter image description here 

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)),
              )
            )
          ],
        ),
      )
    );
  }
}

答案 3 :(得分：4)

最好，最有效的解决方案是在主类中添加主题，并像这样添加输入修饰。 

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

答案 4 :(得分：1)

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。它们是：

  1. disabledBorder：启用设置为false时被激活
  2. enabledBorder：启用设置为true时激活（默认情况下，TextField的enabled属性为true）
  3. errorBorder：在出现某些错误（即验证失败）时被激活
  4. focusedBorder：当我们单击/关注TextField时被激活。
  5. focusedErrorBorder：在出现错误且当前我们专注于该TextField时被激活。

下面是一个代码段：

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,
),

disabledBorder：

disabledBorder

enabledBorder：

enabledBorder

focusedBorder：

focusedBorder

errorBorder：

errorBorder

errorFocusedBorder：

errorFocusedBorder

希望它对您有帮助。

答案 5 :(得分：1)

/*
 * Assuming your form contains these:
    <input name="first_name">
    <input name="last_name">
    <input name="middle_initial">
 */

$name_search = array(
    'relation' => 'AND',
);

// * okay, this still uses 3 clauses, but it always would be just 3 clauses
foreach ( array( 'first_name', 'last_name', 'middle_initial' ) as $name ) {
    if ( ! empty( $_POST[ $name ] ) ) {
        $name_search[ $name ] = array(
            'key'     => '_full_name',
            'value'   => sanitize_text_field( $_POST[ $name ] ),
            'compare' => 'LIKE',
        );
    }
}

$args['meta_query']['name_search'] = $name_search;

答案 6 :(得分：0)

我们尝试了带有粘贴代码段的自定义搜索框。这段代码可用于Flutter中的所有TextFiled装饰。希望此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)))),
          ),
        ),
        ),
      ),

答案 7 :(得分：0)

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,
                              ),

答案 8 :(得分：-1)

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

答案 9 :(得分：-1)

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),
                ),
              ),
            ),
          ),
<块引用>

稍后谢谢我:)

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