微信小程序动态增加组件（以按钮为例）

这里的微信小程序动态加载是以按钮为例，主页面点击不同的按钮进入不同的子页面中，根据主页面的title来动态加载子页面按钮的数量以及值。

效果图：

wxml文件（注意wx:key="item"要写，不然它会有警告）：

<!--pages/plan/plans/plans.wxml-->
<view class="className" style="background-color: rgb(225, 218, 211); height:{{className_height}}px" wx:for="{{array}}" wx:key="item"> 
  <button class="items" id="{{stv.id[index]}}">{{item.name}}</button>
</view>      

这里起关键作用的是wx:for，这里是循环。

/* pages/plan/plans/plans.wxss */
.items { 
  background-color: rosybrown; 
  width:60%;  
}      

// pages/plan/hot/hot.js
 
Page({ 
  data: {
  }, 
  onLoad: function (options) {
    var that = this;
    var arr = new Array();
    if (options.title == "热门") {
      var location1 = { name: "1" };
      var location2 = { name: "2" };
      var location3 = { name: "3" };
      var location4 = { name: "4" };
      var location5 = { name: "5" };
      var location6 = { name: "6" };
      arr.push(location1);
      arr.push(location2);
      arr.push(location3);
      arr.push(location4);
      arr.push(location5);
      arr.push(location6); 
      console.log("OK");
    } else {
      var location1 = { name: "2" };
      var location2 = { name: "4" };
      var location3 = { name: "5" }; 
      arr.push(location1);
      arr.push(location2);
      arr.push(location3);  
    }
    wx.setNavigationBarTitle({title:'创建新计划--'+options.title});
    wx.getSystemInfo({
      success: function (res) {
        that.setData({
          //view
          className_height: res.windowHeight / arr.length,
          //btn
          array: arr,
        })
      }
    }) 
  },
})