wxmini/pages/piano/detail/detail.wxml

<view>
  <nav-bar bind:goBack="_goBack" nav-bgc-class="ex-nav-bgc-class" nav-title-class="ex-nav-title-class" ex-back-pre="ex-back-pre" navbar-data='{{nvabarData}}'>
  </nav-bar>

  <view class="top_item_public_add">
    <view class="top_item_public" wx:for="{{topList}}" wx:key="key" wx:for-item="item" wx:for-index="index">
      <view bind:tap="clickTopItem" data-index="{{index}}">
        <image class="top_image" mode="heightFix" src="{{item.image}}"></image>
        <view>{{item.name}}</view>
      </view>
    </view>
  </view>

  <view class="setting_public">设置
  </view>

  <view class="bottom_public">
    <text>省电模式</text>
    <view class="bottom_item">
      <image class="bottom_item_image" mode="heightFix" src="./../../../img/min.png"></image>
      <switch color="#6D00FF" checked="{{switch1Checked}}" bindchange="switch1Change" />
    </view>
  </view>
</view>