如何自定义 Flutters 中的复选框、单选按钮和 Rang 滑块? [英] How to customize the checkboxes, radio buttons and Rang slider in Flutters?
本文介绍了如何自定义 Flutters 中的复选框、单选按钮和 Rang 滑块?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
大家好，我正在使用 Buttons 来自定义按钮，但我没有找到接近预期设计的方法.基本上，我想自定义 1) 灰色背景和黑色复选标记的多个复选框 2) 灰色的 RangeSlider 非活动栏 3) 黑色单选按钮，我想取消全选，我知道在单选按钮中用户不能取消选择所有按钮，但我想取消选择所有有或没有单选按钮(任何不同的方式也可以)4) 与第 3 点相同，但方形框带有灰色背景和黑色复选标记.我附上了我的代码和预期设计的屏幕截图，并粘贴了我的代码.请大家帮助我接近预期的设计，请随时发表评论以获得任何清晰.提前致谢.我想要什么 我的预期设计 我的结果 UI主文件
Hello Folks I am playing with Buttons to customize the buttons but I didn't find a way to approach the expected design. basically, I wanted to customize the 1) Multiple checkBoxes with Grey color Background and Black color Check Mark 2) RangeSlider Inactive bar with Grey color 3) Radio Button with black Color and I Want to unselect all, I understand that in Radio Button user cant Unselect all the buttons but I Want to unselect all with or without Radio Buttons(any different way is also fine) 4) same as 3rd point but Square Box with Grey color Background and Black color Check Mark. I attached a screenshot of my code and Expected design and also pasted my code. Please guys Help me to approach Expected Design, Please feel free to do comments for any clarity. Thanks in Advance. What I want My expected Design My Result UI Main File
import 'package:filters2/filter_screen.dart';
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Dialog',
home: HomePage(),
);
}
}
class HomePage extends StatefulWidget {
const HomePage({Key? key}) : super(key: key);
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Filters'),
),
body: Center(
child: FlatButton(
onPressed: (){
filterBottomSheet();
},
color: Colors.green,
padding: EdgeInsets.fromLTRB(15, 15, 15, 15),
child: Text('Filters',style: TextStyle(fontSize: 16,color: Colors.white),),
),
),
);
}
filterBottomSheet(){
showModalBottomSheet(
context: context,
isScrollControlled: true,
isDismissible: true,
builder: (BuildContext context){
return Filters();
}
);
}
}
过滤器类
import 'package:filters2/Fruit_model_class.dart';
import 'package:filters2/color_model_class.dart';
import 'package:filters2/mobile_model_class.dart';
import 'package:flutter/material.dart';
class Filters extends StatefulWidget {
@override
_FiltersState createState() => _FiltersState();
}
class _FiltersState extends State<Filters> {
/*--------MobileList-multiple checklist-------*/
List<MobileList> availableMobiles = [
MobileList(id: 0, companyName: "Google", model: "Pixel 6 Pro"),
MobileList(id: 1, companyName: "Apple", model: "Iphone Xr"),
MobileList(id: 2, companyName: "Xiaomi", model: "Redmi note 10"),
];
List<MobileList> selectedMobiles = [];
/*------Price Range Selection-RangeSlider--------*/
RangeValues _currentRangeValues = const RangeValues(40000, 80000);
int minPrice = 20000;
int maxPrice = 90000;
/*Radio--fruits*/
String radioItem1 = 'Mango';
int fruitGroupId = 0;
List<FruitsList> fList = [
FruitsList(id: 0, name: "Mango",),
FruitsList(id: 1, name: "Apple",),
FruitsList(id: 2, name: "Banana",),
FruitsList(id: 3, name: "Cherry",),
];
/*Radio--Colors*/
String radioItem2 = 'Red';
int? colorGroupId ;
List<ColorsList> cList = [
ColorsList(id: 0, name: "Blue",),
ColorsList(id: 1, name: "Red",),
ColorsList(id: 2, name: "Green",),
ColorsList(id: 3, name: "Yellow",),
];
@override
Widget build(BuildContext context) {
return Container(
height: MediaQuery.of(context).size.height * 0.85,
decoration: BoxDecoration(
//olor: Colors.red,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
topRight: Radius.circular(10),
)
),
child: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
SizedBox(height: 10,),
Container(
child: Text("Filter",style: TextStyle(color: Colors.black, fontSize: 24,fontWeight: FontWeight.bold),),
),
SizedBox(height: 10,),
Container(
child: Text("Select Mobiles (multiple selection)",style: TextStyle(color: Colors.black, fontSize: 20,fontWeight: FontWeight.bold),),
),
SizedBox(height: 10,),
Divider(),
Container(
child: Row(
children: [
Expanded(
flex:1,
child: ListView.builder(
shrinkWrap: true,
itemCount: availableMobiles.length,
itemBuilder: (context, playerIndex){
return CheckboxListTile(
controlAffinity: ListTileControlAffinity.trailing,
contentPadding: EdgeInsets.zero,
title:Text(availableMobiles[playerIndex].companyName),
value: selectedMobiles.contains(availableMobiles[playerIndex]),
onChanged: (value) {
if(selectedMobiles.contains(availableMobiles[playerIndex])){
selectedMobiles.remove(availableMobiles[playerIndex]);
}
else {
selectedMobiles.add(availableMobiles[playerIndex]);
}
setState(() {
});
}
);
}
),
),
Expanded(
flex: 2,
child:Container(
color: Colors.white ,
) ),
],
),
),
SizedBox(height: 10,),
Divider(),
Container(
child: Text("Year",style: TextStyle(color: Colors.black, fontSize: 20,fontWeight: FontWeight.bold),),
),
SizedBox(height: 10,),
Divider(),
Container(
child: Row(
//mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Align(
alignment: Alignment.centerLeft,
child: Text("20000",style: TextStyle(color: Colors.black, fontSize: 20)),
),
Expanded(
child: RangeSlider(
values: _currentRangeValues,
min: minPrice.toDouble(),
max: maxPrice.toDouble(),
divisions: maxPrice - minPrice,
activeColor: Colors.black,
labels: RangeLabels(
_currentRangeValues.start.round().toString(),
_currentRangeValues.end.round().toString(),
),
onChanged: (RangeValues values) {
setState(() {
_currentRangeValues = values;
});
},
),
),
Align(
alignment: Alignment.centerRight,
child: Text("90000",style: TextStyle(color: Colors.black, fontSize: 20))),
],
),
),
SizedBox(height: 10,),
Divider(),
Container(
child: Row(
children: [
Expanded(
flex: 1,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text("Fruits (Single selection)",style: TextStyle(color: Colors.black, fontSize: 20,fontWeight: FontWeight.bold),),
Column(
children:
fList.map((data) => RadioListTile(
controlAffinity: ListTileControlAffinity.trailing,
contentPadding: EdgeInsets.zero,
title: Text("${data.name}"),
groupValue: fruitGroupId,
value: data.id,
onChanged: (val){
setState(() {
radioItem1 = data.name;
fruitGroupId = data.id;
});
},
)).toList(),
),
],
),
),
Expanded(
flex:2,
child: Container(
//width: 5,
color: Colors.white,
)),
],
),
),
Container(
child: Row(
children: [
Expanded(
flex: 1,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text("Colors",style: TextStyle(color: Colors.black, fontSize: 20,fontWeight: FontWeight.bold),),
Column(
children:
cList.map((colorData) => RadioListTile(
controlAffinity: ListTileControlAffinity.trailing,
contentPadding: EdgeInsets.zero,
title: Text("${colorData.name}"),
groupValue: colorGroupId,
value: colorData.id,
onChanged: (val){
setState(() {
radioItem2 = colorData.name;
colorGroupId = colorData.id;
});
},
)).toList(),
),
],
),
),
Expanded(
flex: 2,
child:Container(
color: Colors.white ,
) ),
],
),
),
],
),
),
);
}
}
mobile_model_class
class MobileList {
int id;
String companyName;
String model;
MobileList({required this.id, required this.companyName, required this.model});
}
Fruit_model_class
class MobileList {
int id;
String companyName;
String model;
MobileList({required this.id, required this.companyName, required this.model});
}
color_model_class
class ColorsList {
String name;
int id;
ColorsList({required this.name,required this.id});
}
推荐答案
你可以使用改变复选框的颜色
To change color of checkbox you can use
Checkbox(
value: isCheck,
checkColor: Colors.black, // change color here
activeColor: Colors.grey,
onChanged: (bool value) {
setState(() {
isCheck = value;
});
}),
改变单选按钮的颜色试试
To change color of radio button try
Theme(
data: ThemeData(
//Change color here
unselectedWidgetColor: Colors.grey,
),
child: Row(
children: <Widget>[
Radio(),
Radio()
],
),
);
这篇关于如何自定义 Flutters 中的复选框、单选按钮和 Rang 滑块?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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