weui中的picker使用js进行动态绑定数据

<div class="weui-cell">
			    <div class="weui-cell__hd"><label for="time-format" class="weui-label">性别</label></div>
			    <div class="weui-cell__bd">
			        <input class="weui-input " id="appl_sex" name="appl_sex" type="text" value="">
			    </div>
			</div>
  

<div id="box">
      <input type="text" id='camera' value="前置摄像头"/>
</div>

$("#appl_sex").picker({

    title: "请选择",
    cols: [
        {
            textalign: 'center',
            values: ["1",'2']
        }
    ],
    onchange: function(p, v, dv) {
        console.log(p, v, dv);
    },
    onclose: function(p, v, d) {
        console.log("close");
    }
});

$('#appl_sex').change(function () {
    /*选择设备号后,根据当前设备号设置不同的摄像头选项,具体判断逻辑根据具体的项目而定*/
    var val = $("#appl_sex").val();
    if (val == "1") {
         $("#box").empty();
         $("#box").html("<input type='text' id='camera' value='前置摄像头'/>");
         $("#camera").picker({
              title: "请选择摄像头",
              cols: [
                   {
                       textalign: 'center',
                       values: ['前置摄像头']
                   }
              ]
         });
     } else {
         $("#box").empty();
         $("#box").html("<input type='text' id='camera' value='前置摄像头'/>");
         $("#camera").picker({
              title: "请选择摄像头",
              cols: [
                   {
                       textalign: 'center',
                       values: ['前置摄像头', '后置摄像头', '前+后摄像头']
                   }
              ]
         });
     }
});