<t-tab-bar value="{{value}}" bindchange="onChange" theme="tag" split="{{false}}">
<t-tab-bar-item
wx:for="{{list}}"
wx:key="index"
value="{{item.value}}"
icon="{{item.icon}}"
ariaLabel="{{item.ariaLabel}}"
></t-tab-bar-item>
</t-tab-bar>