1.VUE mint index-list plug-in IOS cannot scroll locally
when scrolling, it will drive the search box down together
<mt-index-list>
<mt-index-section index="A">
<mt-cell title="Aaron"></mt-cell>
<mt-cell title="Alden"></mt-cell>
<mt-cell title="Austin"></mt-cell>
</mt-index-section>
<mt-index-section index="B">
<mt-cell title="Baldwin"></mt-cell>
<mt-cell title="Braden"></mt-cell>
</mt-index-section>
...
</mt-index-list>