datetime-picker事件穿透問題解決一勞永逸

最近在使用mint-ui做移動端H5開發，遇到個特別噁心的問題：頁面超一屏的時候，ios的datetime-picker在滑動的時候聯動到底層一起滾動，網上說的禁止touchMove事件嘗試了並不管用。最後的解決辦法如下：

1、datetime-picker改用popup加picker替換

2、當popup顯示的時候給body加個class。class加 pointer-events: none;

// html
<div class="index" :class="{popPicker:popTimer.visible}">
        <popup v-model="popTimer.visible" v-if="popTimer.visible" position="bottom" style="width:100%;">
            <div class="picker-toolbar">
                <span class="mint-datetime-action mint-datetime-cancel" @click="popTimer.visible=false">取消</span>
                <span class="mint-datetime-action mint-datetime-confirm" @click="setTimer">確定</span>
            </div>
            <picker :slots="minutes" @change="timerChange"></picker>
        </popup>
</div>
// css
.index.popPicker{
    pointer-events: none;
}
.v-modal,.mint-datetime,.picker-slot-wrapper,.mint-popup{
    pointer-events: all;
}