wxapp operation feedback message prompt box: loading

Note:

is about to be deprecated, please use the API wx.showToast

Message prompt box

Sample code:

<view class="body-view">
    <loading hidden="{{hidden}}">
        加载中...
    </loading>
    <button type="default" bindtap="loadingTap">点击弹出loading</button>
</view>

Page({
    data: {
        hidden: true
    },
    loadingTap: function(){
        this.setData({
          hidden: false
        });
        var that = this;
        setTimeout(function(){
          that.setData({
              hidden: true
          });
          that.update();
        }, 3000);
    }
})