uni-app:实现列表单选功能

效果图：

核心解析：

一、

<view class="item_all" v-for="(item, index) in info" :key="index">
    <view class='position parameter-info text-over' :class='item.checked?"checked_parameter":""'
					:data-id="item.employee_num" @tap='selectcustomer'>
        <view class="vv_1">{
   
   {item.num_name}}</view>
	</view>
</view>

v-for="(item, index) in info"：将数据进行循环展示

:class='item.checked?"checked_parameter":"" ':表示如果当前行的item.checked为真吗，如果为真执行class="checked_parameter"，如果不为真，就执行class="",也就是判断该行数据是否被选中，选中进行颜色更改

:data-id="item.employee_num"：是在uni-app中使用 v-bind 指令将 data-id 属性绑定到 item.employee_num 这个表达式的值。data-id 是一个自定义属性，可以用于存储某个元素的额外数据。也就是绑定一个值，方便在js中引用

@tap='selectcustomer'：点击事件

 二、

info: [{
        employee_num: 1001,
	    employee_name: '张三',
	    checked: false,
	    num_name: '1001-张三'
	},
	{
		employee_num: 1002,
		employee_name: '李四',
		checked: false,
		num_name: '1002-李四'
	}, {
		employee_num: 1003,
		employee_name: '王五',
		checked: false,
		num_name: '1003-王五'
	}, {
		employee_num: 1004,
		employee_name: '赵六',
		checked: false,
		num_name: '1004-赵六'
	}],
parameterList: ''

在data中定义数据

info（也可以设置为空数组，请求服务器端的数据）

parameterList：定义一个字符串，用于存放被选中数据的行信息

三、

// 参数点击响应事件
selectcustomer: function(e) {
    var this_checked = e.currentTarget.dataset.id //获取对应的条目id
	var parameterList = this.info //获取Json数组
	console.log(this_checked)
	for (var i = 0; i < parameterList.length; i++) {
		if (parameterList[i].employee_num == this_checked) {
			parameterList[i].checked = true; //当前点击的位置为true即选中
			this.parameterList = parameterList[i]
			console.log('参数', this.parameterList)
		} else {
			parameterList[i].checked = false; //其他的位置为false
		}
	}
    this.info = parameterList;
},

var this_checked=e.currentTarget.dataset.id:获取被选中行的:data-id中的值(employee_num)

var parameterList = this.info ：获取全部数组的值info

for (var i = 0; i < parameterList.length; i++) :对info的数据进行循环

if (parameterList[i].employee_num == this_checked) :判断info中的每个employee_num是否有与被选中的行的employee_num相等的

parameterList[i].checked = true; ：将满足条件的info数组中的这行数据中的checked 值设置为true,也就表示这行数据被选中

this.parameterList = parameterList[i] ：也就是将data中定义的parameterList的值设置为数组info中的这行数据

parameterList[i].checked = false; ：不满足的行，需要将checked的值设置为false

 this.info = parameterList; ：更新完数据之后重新定义info数组的值

全部代码：

<template>
	<view>
		<view class="top">
			<view class="search">
				<view class="search_in">
					<!-- 使用代码请更改图片路径 -->
					<image :src="search"></image>
					<input type="text" placeholder="请输入名称" placeholder-style="color:#CCCCCC" @confirm="search" />
				</view>
			</view>
		</view>
		<view class="center">
			<view class="pages_name">
				<view class="li"></view>
				<view class="li2">员工信息</view>
			</view>
		</view>
		<view class="all">
			<view class="item_all" v-for="(item, index) in info" :key="index">
				<view class='position parameter-info text-over' :class='item.checked?"checked_parameter":""'
					:data-id="item.employee_num" @tap='selectcustomer'>
					<view class="vv_1">{
   
   {item.num_name}}</view>
				</view>
			</view>
		</view>
		<view class="button_sure" @tap="sure">
			<view class="sure_text">确认</view>
		</view>
		<!-- 添加按钮 -->
		<image class='img' :src='add' @tap='add'></image>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				search: getApp().globalData.icon + 'index/search.png',
				add: getApp().globalData.icon + 'index/index/add.png',
				info: [{
						employee_num: 1001,
						employee_name: '张三',
						checked: false,
						num_name: '1001-张三'
					},
					{
						employee_num: 1002,
						employee_name: '李四',
						checked: false,
						num_name: '1002-李四'
					}, {
						employee_num: 1003,
						employee_name: '王五',
						checked: false,
						num_name: '1003-王五'
					}, {
						employee_num: 1004,
						employee_name: '赵六',
						checked: false,
						num_name: '1004-赵六'
					}
				],
				parameterList: ''
			}
		},
		methods: {
			// 参数点击响应事件
			selectcustomer: function(e) {
				var this_checked = e.currentTarget.dataset.id //获取对应的条目id
				var parameterList = this.info //获取Json数组
				console.log(this_checked)
				for (var i = 0; i < parameterList.length; i++) {
					if (parameterList[i].employee_num == this_checked) {
						parameterList[i].checked = true; //当前点击的位置为true即选中
						this.parameterList = parameterList[i]
						console.log('参数', this.parameterList)
					} else {
						parameterList[i].checked = false; //其他的位置为false
					}
				}
				this.info = parameterList;
			},
		},
		// onLoad() {
		// 	uni.request({
		// 		url: getApp().globalData.position + 'Produce/select_employee',
		// 		data: {

		// 		},
		// 		header: {
		// 			"Content-Type": "application/x-www-form-urlencoded"
		// 		},
		// 		method: 'POST',
		// 		dataType: 'json',
		// 		success: res => {
		// 			this.info = res.data.all_info
		// 		},
		// 		fail(res) {
		// 			console.log("查询失败") 
		// 		}
		// 	});
		// }
	}
</script>

<style>
	/* 背景色 */
	page {
		background-color: #F0F4F7;
	}

	/* 搜索框 */
	.search {
		display: flex;
		align-items: center;
		justify-content: center;
		height: 60px;
		background-color: #fff;
		/* border:1px solid black; */
		margin-bottom: 5%;
	}

	.search .search_in {
		display: flex;
		align-items: center;
		justify-content: space-between;
		padding: 0 20rpx;
		box-sizing: border-box;
		height: 70rpx;
		width: 90%;
		background-color: #F0F4F7;
		border-radius: 5px;
	}

	.search_in image {
		height: 45rpx;
		width: 50rpx;
		margin-right: 10px;
		/* border:1px solid black; */
	}

	.search input {
		/* border:1px solid black; */
		width: 100%;
	}


	/* 列表 */
	.all {
		margin-bottom: 20%;
	}

	.item_all {
		/* border: 1px solid black; */
		margin-bottom: 3%;
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		width: 100%;
	}

	.position {
		display: flex;
		flex-direction: column;
		justify-content: center;
		height: 80px;
		width: 95%;
		border-radius: 10px;
		background-color: #fff;
		box-shadow: 2px 2px 2px gainsboro;
	}

	.vv_1 {
		margin-left: 5%;
		word-break: break-all;
	}

	/* 选中之后的样式设置 */
	.checked_parameter {
		background: #74bfe7;
		color: #fff;
	}

	.footer button {
		width: 100%;
	}

	/* 标题信息 */
	.center {
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		width: 100%;
		margin-bottom: 3%;
	}

	.pages_name {
		/* border: 1px solid black; */
		width: 95%;
		display: flex;
		align-items: center;
	}

	.li {
		/* border: 1px solid black; */
		width: 15px;
		height: 15px;
		border-radius: 100%;
		background-color: #74bfe7;
	}

	.li2 {
		/* border: 1px solid black; */
		font-size: 110%;
		margin-left: 2%;
	}

	/* 悬浮按钮 */
	.img {
		float: right;
		position: fixed;
		bottom: 10%;
		right: 2%;
		width: 100rpx;
		height: 100rpx;
	}

	/* 确认按钮 */
	.button_sure {
		bottom: 0px;
		position: fixed;
		width: 100%;
		height: 8%;
		background: #74bfe7;
		color: white;
		font-size: 105%;
		display: flex;
		align-items: center;
		justify-content: center;
	}
</style>

扩展：给此界面增加了翻页和模糊查询功能

效果：

前端：

<template>
	<view>
		<view class="top">
			<view class="search">
				<view class="search_in">
					<!-- 使用代码请更改图片路径 -->
					<image :src="search"></image>
					<input type="text" placeholder="请输入员工工号" placeholder-style="color:#CCCCCC" @confirm="search_num" />
				</view>
			</view>
		</view>
		<view class="center">
			<view class="pages_name">
				<view class="li"></view>
				<view class="li2">员工信息</view>
			</view>
		</view>
		<view class="all">
			<view class="item_all" v-for="(item, index) in info" :key="index">
				<view class='position parameter-info text-over' :class='item.checked?"checked_parameter":""'
					:data-id="item.employee_num" @tap='selectcustomer'>
					<view class="vv_1">{
   
   {item.num_name}}</view>
				</view>
			</view>
			<view class="pagination">
				<view class="page-button" @tap="prevPage">上一页</view>
				<view class="page-info">{
   
   { page }}</view>
				<view class="page-info">/</view>
				<view class="page-info">{
   
   { totalPage }}</view>
				<view class="page-button" @tap="nextPage">下一页</view>
			</view>
		</view>
		<view class="button_sure" @tap="sure">
			<view class="sure_text">确认</view>
		</view>
		<!-- 添加按钮 -->
		<image class='img' :src='add' @tap='add'></image>
	</view>
</template>
<script>
	export default {
		data() {
			return {
				search: getApp().globalData.icon + 'index/search.png',
				add: getApp().globalData.icon + 'index/index/add.png',
				info: [],
				parameterList: '',
				like_employee_num: '', //模糊查询的员工工号
				page: 1, // 当前页数
				pageSize: 10, // 每页展示的数据条数
				totalPage: 0, //总页数
			}
		},
		methods: {
			// 参数点击响应事件，单选的实现
			selectcustomer: function(e) {
				var this_checked = e.currentTarget.dataset.id //获取对应的条目id
				var List = this.info //获取Json数组
				// console.log(this_checked)
				for (var i = 0; i < List.length; i++) {
					if (List[i].employee_num == this_checked) {
						List[i].checked = true; //当前点击的位置为true即选中
						this.parameterList = List[i]
						console.log('参数', this.parameterList)
					} else {
						List[i].checked = false; //其他的位置为false
					}
				}
				this.info = List;
			},
			//确认
			sure() {
				if (!this.parameterList) {
					uni.showToast({
						title: '请选择员工',
						icon: 'none'
					})
				} else {
					uni.$emit('isRefresh', this.parameterList)
					uni.navigateBack({
						delta: 1
					})
				}
			},
			//模糊查询
			search_num(event) {
                this.page = 1;//模糊查询默认从首页开始
				this.like_employee_num = event.target.value;
				this.getdata()
			},
			getdata() {
				uni.request({
					url: getApp().globalData.position + 'Produce/select_employee',
					data: {
						like_employee_num: this.like_employee_num,
						page: this.page,
						pageSize: this.pageSize
					},
					header: {
						"Content-Type": "application/x-www-form-urlencoded"
					},
					method: 'POST',
					dataType: 'json',
					success: res => {
						this.info = res.data.all_info
						this.totalPage = Math.ceil(res.data.total / this.pageSize);
					},
					fail(res) {
						console.log("查询失败")
					}
				});
			},
			prevPage() {
			  if (this.page > 1) {
			    this.page--;
			    this.getdata();
			  }
			},
			nextPage() {
			  if (this.page < this.totalPage) {
			    this.page++;
			    this.getdata();
			  }
			},

		},
		onLoad() {
			this.getdata();
		}
	}
</script>

<style>
	.pagination {
		display: flex;
		align-items: center;
		justify-content: left;
		margin-bottom: 20%;
		/* border: 1px solid black; */
	}

	.page-button {
		height: 30px;
		line-height: 30px;
		padding: 0 10px;
		border: 1px solid white;
		border-radius: 5px;
		margin: 0 5px;
		cursor: pointer;
	}

	.page-info {
		font-weight: bold;
	}

	/* 背景色 */
	page {
		background-color: #F0F4F7;
	}

	/* 搜索框 */
	.search {
		display: flex;
		align-items: center;
		justify-content: center;
		height: 120rpx;
		background-color: #fff;
		/* border:1px solid black; */
		margin-bottom: 5%;
	}

	.search .search_in {
		display: flex;
		align-items: center;
		justify-content: space-between;
		padding: 0 20rpx;
		box-sizing: border-box;
		height: 70rpx;
		width: 90%;
		background-color: #F0F4F7;
		border-radius: 10rpx;
	}

	.search_in image {
		height: 45rpx;
		width: 50rpx;
		margin-right: 20rpx;
		/* border:1px solid black; */
	}

	.search input {
		/* border:1px solid black; */
		width: 100%;
	}


	/* 列表 */
	.all {
		margin-bottom: 20%;
		border: 1px solid #F0F4F7;
	}

	.item_all {
		/* border: 1px solid black; */
		margin-bottom: 3%;
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		width: 100%;
	}

	.position {
		display: flex;
		flex-direction: column;
		justify-content: center;
		height: 160rpx;
		width: 95%;
		border-radius: 20rpx;
		background-color: #fff;
		box-shadow: 4rpx 4rpx 4rpx gainsboro;
	}

	.vv_1 {
		margin-left: 5%;
		word-break: break-all;
	}

	/* 选中之后的样式设置 */
	.checked_parameter {
		background: #74bfe7;
		color: #fff;
	}

	.footer button {
		width: 100%;
	}

	/* 标题信息 */
	.center {
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		width: 100%;
		margin-bottom: 3%;
	}

	.pages_name {
		/* border: 1px solid black; */
		width: 95%;
		display: flex;
		align-items: center;
	}

	.li {
		/* border: 1px solid black; */
		width: 30rpx;
		height: 30rpx;
		border-radius: 100%;
		background-color: #74bfe7;
	}

	.li2 {
		/* border: 1px solid black; */
		font-size: 110%;
		margin-left: 2%;
	}

	/* 悬浮按钮 */
	.img {
		float: right;
		position: fixed;
		bottom: 15%;
		right: 2%;
		width: 100rpx;
		height: 100rpx;
	}

	/* 确认按钮 */
	.button_sure {
		bottom: 0rpx;
		position: fixed;
		width: 100%;
		height: 8%;
		background: #74bfe7;
		color: white;
		font-size: 105%;
		display: flex;
		align-items: center;
		justify-content: center;
	}
</style>

后端：

  //查询员工详细信息
  public function select_employee()
  {
    $like_employee_num = input('post.like_employee_num','');//模糊查询的条件
    $page = input('post.page', 1); // 获取当前页数，默认为第一页
    $pageSize = input('post.pageSize', 10); // 获取每页展示的数据条数，默认为10条
    $start = ($page - 1) * $pageSize; // 计算查询的起始位置
    //计算总页数
    $count = Db::table('hr_employees')->where('employee_num', 'like', '%' . $like_employee_num . '%')->count(); // 查询符合条件的总记录数
    $data['total'] = $count; // 将总记录数返回给前端
    //查询数据
    $data['all_info'] = db::table('hr_employees')->where(['employee_num'=>['like', '%' . $like_employee_num . '%']])->limit($start, $pageSize)->select();
    //处理拼接数据和单选所需数据
    for($i=0;$i<count($data['all_info']);$i++){
         $data['all_info'][$i]['num_name'] =  $data['all_info'][$i]['employee_num'] . '-' . $data['all_info'][$i]['employee_name'];
         $data['all_info'][$i]['checked'] =  false;
    }
    //返回值给前端
    echo json_encode($data);
  }