活动按钮状态流转

unpackage/dist/build/mp-weixin/pagesMall/refund/apply.wxml

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+<view class="container" style="{{'--theme-color:'+(themeColor)+';'}}"><title-bar vue-id="6306b1aa-1" showBack="{{true}}" title="申请退款" bind:__l="__l"></title-bar><block wx:if="{{loadEnd}}"><view class="container-main"><view class="main-column"><view class="column-title">退款原因</view><view class="column-list"><block wx:for="{{reasonList}}" wx:for-item="item" wx:for-index="index" wx:key="index"><view data-event-opts="{{[['tap',[['changeReason',[index]]]]]}}" class="list-item flex align-items-center" bindtap="__e"><view class="{{['item-radio',(selectReason==index)?'active':'']}}"><block wx:if="{{selectReason==index}}"><image src="/static/tick.png" mode="aspectFill"></image></block></view><view class="item-label">{{item.name}}</view></view></block></view></view><view class="main-column"><view class="column-title">退款描述</view><view class="column-content"><textarea class="input" placeholder="请填写您的退款描述，200字以内" placeholder-class="placeholder" data-event-opts="{{[['input',[['__set_model',['$0','refund_content','$event',[]],['formData']]]]]}}" value="{{formData.refund_content}}" bindinput="__e"></textarea></view></view><view class="main-footer"><view data-event-opts="{{[['tap',[['handleSubmit']]]]}}" class="footer-btn" bindtap="__e">提交退款申请</view><view class="safe-padding"></view></view></view></block></view>