【报Bug】uni.createSelectorQuery() 钉钉小程序返回 null

示例代码：

uni.createSelectorQuery()  
    .in(this)  
    .select('#list')  
    .boundingClientRect()  
    .exec(ret => {  
            console.log(ret)  
            this.winOffsetY = ret[0].top  
            this.winHeight = ret[0].height  
            this.itemHeight = this.winHeight / this.lists.length  
})```

操作步骤：

<template>  
    <view class="ray-indexed-list" ref="list" id="list">  
        <scroll-view :scroll-into-view="scrollViewId" class="ray-indexed-list__scroll" scroll-y>  
            <view v-for="(list, idx) in lists" :key="idx" :id="'ray-' + idx">  
                <slot name="item" :itemList="list"></slot>  
            </view>  
        </scroll-view>  
        <view class="ray-indexed-list__menu" @touchstart="touchStart" @touchmove.stop.prevent="touchMove"  
            @touchend="touchEnd" @mousedown.stop="mousedown" @mousemove.stop.prevent="mousemove"  
            @mouseleave.stop="mouseleave">  
            <view v-for="(list, key) in lists" :key="key" class="ray-indexed-list__menu-item"  
                :class="touchmoveIndex == key ? 'ray-indexed-list__menu--active' : ''">  
                <text class="ray-indexed-list__menu-text"  
                    :class="touchmoveIndex == key ? 'ray-indexed-list__menu-text--active' : ''">{{ list.key }}</text>  
            </view>  
        </view>  
        <view v-if="touchmove" class="ray-indexed-list__alert-wrapper">  
            <text class="ray-indexed-list__alert">{{ lists[touchmoveIndex].key }}</text>  
        </view>  
    </view>  
</template>  
<script>  
    import indexedListItem from './uni-indexed-list-item.vue'  
    /**  
     * IndexedList 索引列表  
     * @description 用于展示索引列表  
     * @tutorial https://ext.dcloud.net.cn/plugin?id=375  
     *  @value true 展示模式  
     *  @value false 选择模式  
     * @property {Object} options 索引列表需要的数据对象  
     */  
    export default {  
        name: 'RayIndexedList',  
        components: {  
            indexedListItem  
        },  
        props: {  
            options: {  
                type: Array,  
                default () {  
                    return []  
                }  
            }  
        },  
        data() {  
            return {  
                lists: [],  
                winHeight: 0,  
                itemHeight: 0,  
                winOffsetY: 0,  
                touchmove: false,  
                touchmoveIndex: -1,  
                scrollViewId: '',  
                touchmovable: true,  
                isPC: false  
            }  
        },  
        watch: {  
            options: {  
                handler: function() {  
                    this.setList()  
                },  
                deep: true  
            }  
        },  
        mounted() {  
            // #ifdef H5  
            this.isPC = this.IsPC()  
            // #endif  
            setTimeout(() => {  
                this.setList()  
            }, 50)  
            setTimeout(() => {  
                this.loaded = true  
            }, 300);  
        },  
        methods: {  
            setList() {  
                let index = 0;  
                this.lists = []  
                this.options.forEach((value) => {  
                    if (value.data.length === 0) {  
                        return  
                    }  
                    let items = value.data.map(item => {  
                        let obj = {}  
                        obj['key'] = value.letter  
                        obj['name'] = item  
                        obj['itemIndex'] = index  
                        index++  
                        return obj  
                    })  
                    this.lists.push({  
                        key: value.letter,  
                        items: items,  
                    })  
                })  
                    uni.createSelectorQuery()  
                        .in(this)  
                        .select('#list')  
                        .boundingClientRect()  
                        .exec(ret => {  
                            console.log(ret)  
                            this.winOffsetY = ret[0].top  
                            this.winHeight = ret[0].height  
                            this.itemHeight = this.winHeight / this.lists.length  
                        })  

            },  
            touchStart(e) {  
                this.touchmove = true  
                let pageY = this.isPC ? e.pageY : e.touches[0].pageY  
                let index = Math.floor((pageY - this.winOffsetY) / this.itemHeight)  
                let item = this.lists[index]  
                if (item) {  
                    this.scrollViewId = 'ray-' + index  
                    this.touchmoveIndex = index  
                }  
            },  
            touchMove(e) {  
                let pageY = this.isPC ? e.pageY : e.touches[0].pageY  
                let index = Math.floor((pageY - this.winOffsetY) / this.itemHeight)  
                if (this.touchmoveIndex === index) {  
                    return false  
                }  
                let item = this.lists[index]  
                if (item) {  
                    this.scrollViewId = 'ray-' + index  
                    this.touchmoveIndex = index  
                }  
            },  
            touchEnd() {  
                this.touchmove = false  
                // this.touchmoveIndex = -1  
            },  

            /**  
             * 兼容 PC @tian  
             */  

            mousedown(e) {  
                if (!this.isPC) return  
                this.touchStart(e)  
            },  
            mousemove(e) {  
                if (!this.isPC) return  
                this.touchMove(e)  
            },  
            mouseleave(e) {  
                if (!this.isPC) return  
                this.touchEnd(e)  
            },  

            // #ifdef H5  
            IsPC() {  
                var userAgentInfo = navigator.userAgent;  
                var Agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];  
                var flag = true;  
                for (let v = 0; v < Agents.length - 1; v++) {  
                    if (userAgentInfo.indexOf(Agents[v]) > 0) {  
                        flag = false;  
                        break;  
                    }  
                }  
                return flag;  
            },  
            // #endif  
        }  
    }  
</script>  
<style lang="scss">  
    .ray-indexed-list {  
        position: absolute;  
        left: 0;  
        top: 0;  
        right: 0;  
        bottom: 0;  
        /* #ifndef APP-NVUE */  
        display: flex;  
        /* #endif */  
        flex-direction: row;  
    }  

    .ray-indexed-list__scroll {  
        flex: 1;  
    }  

    .ray-indexed-list__menu {  
        width: 24px;  
        /* #ifndef APP-NVUE */  
        display: flex;  
        /* #endif */  
        flex-direction: column;  
    }  

    .ray-indexed-list__menu-item {  
        /* #ifndef APP-NVUE */  
        display: flex;  
        /* #endif */  
        flex: 1;  
        align-items: center;  
        justify-content: center;  
        /* #ifdef H5 */  
        cursor: pointer;  
        /* #endif */  
    }  

    .ray-indexed-list__menu-text {  
        font-size: 12px;  
        text-align: center;  
        color: #aaa;  
    }  

    .ray-indexed-list__menu--active {  
        // background-color: rgb(200, 200, 200);  
    }  

    .ray-indexed-list__menu--active {}  

    .ray-indexed-list__menu-text--active {  
        border-radius: 16px;  
        width: 16px;  
        height: 16px;  
        line-height: 16px;  
        background-color: #007aff;  
        color: #fff;  
    }  

    .ray-indexed-list__alert-wrapper {  
        position: absolute;  
        left: 0;  
        top: 0;  
        right: 0;  
        bottom: 0;  
        /* #ifndef APP-NVUE */  
        display: flex;  
        /* #endif */  
        flex-direction: row;  
        align-items: center;  
        justify-content: center;  
    }  

    .ray-indexed-list__alert {  
        width: 80px;  
        height: 80px;  
        border-radius: 80px;  
        text-align: center;  
        line-height: 80px;  
        font-size: 35px;  
        color: #fff;  
        background-color: rgba(0, 0, 0, 0.5);  
    }  
</style>

预期结果：

{id: "list", dataset: {…}, left: 0, right: 320, top: 0, …}

实际结果：

null