35 lines
843 B
JavaScript
35 lines
843 B
JavaScript
import {
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getCurrentInstance,
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} from 'vue';
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export async function getElRect(elClass, instance,option) {
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instance = instance ? instance : getCurrentInstance();
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const query = uni.createSelectorQuery().in(instance.proxy);
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try{
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const res= await getEle(query,elClass,option)
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return res
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}catch(e){
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console.log(e);
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}
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}
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async function getEle(query,elClass,option){
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return new Promise((resolve, reject)=>{
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query.select('.' + elClass).fields({
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size: true,
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...option
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}, res => {
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// 如果节点尚未生成，res值为null，循环调用执行
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if (!res) {
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return setTimeout(() => {
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getEle(query,elClass,option);
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}, 10);
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}
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resolve(res);
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}).exec();
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})
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}
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export async function getSafeBottomHeight(className, height = 16) {
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const bottomEle = await getElRect(className)
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return bottomEle.height + height
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} |