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无依赖的省-市-区三级联动选择器 https://licong96.github.io/work/lc-city-selector/index.html

HTML 8.00% JavaScript 55.90% CSS 36.10%

lc-city-selector's Introduction

省-市-区三级联动城市选择器


效果

演示地址:https://licong96.github.io/work/lc-city-selector/index.html

效果

无依赖

纯js手写,不依赖任何插件,用在移动端比较好,你如果非要用在PC端,我也拦不住你。

安装

npm安装或者cnpm:

    npm install lc-city-selector --save

yarn安装:

    yarn add lc-city-selector

使用

    import LcCity from 'lc-city-selector';

    var City = new LcCity();    // 创建实例化对象
    City.show();    // 执行show方法

confirm

回调函数,可以在里面拿到选中的地区

    import LcCity from 'lc-city-selector';
    var City = new LcCity({
        confirm: function (data) {
            console.log(data);  // data就是选中的地区,一个拼接好的字符串
        }
    });
    
    ----------
    如果你不想用回调的方式
    可以用`City.getSelect()`方法直接获取当前选中的地区

数据回填

如果你已经有了数据,想要回填进去,可以加一个data参数,但是要注意它的格式

    import LcCity from 'lc-city-selector';
    var City = new LcCity({
        data: {
            province: '江西省',
            city    : '南昌市',
            district: '青山湖区',
        }
    });
    
    注意:键要相同,值要完整,省、市、区这几个字不要省略

参数

参数 类型 说明 默认值
data Object 需要回填的数据
confirm Function 触发确定按钮,返回选中的地区
cancel Function 触发取消按钮,没有返回值

API

  1. show(),打开选择器
  2. close(),关闭选择器
  3. getSelect(),获取当前选中的区域,已拼接成了一个字符串
  4. getSelectObj(),获取当前选中的区域,返回的是一个对象

电脑端需要注意

虽然样式上已经做了兼容,但是选择器的位置有偏移,所以在电脑上打开需要传入一个元素,我会把元素距离屏幕的位置,赋值给选择器,让选择器和元素凑在一起

    import LcCity from 'lc-city-selector';

    var City = new LcCity();    // 创建实例化对象
    
    // 假设有一个id为input的元素,点击它来打开选择器
    
    var oInput =  document.getElementById('input');
    
    oInput.addEventListener('click', function() {
      City.show(this);  // 这里的this指向的是oInput
    });

欢迎提出建议和问题,我会第一时间处理

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