elementui 遇到问题 el-select搜索框在ipad下无法唤出虚拟键盘

<template>
    <el-select
        ref="select"
        @focus="clear"
        @hook:mounted="clear"
        @visible-change="clear"
    >
    </el-select>
</template>
<script>
    export default {
        methods: {
            clear(async) {
                this.$nextTick(() => {
			        if (!async) {
			          // ios 手机有延迟问题
			          setTimeout(() => {
			            const { select } = this.$refs
			            const input = select.$el.querySelector('.el-input__inner')
			            input.removeAttribute('readonly')
			          }, 200)
			        }
			     })
            }
        }
    }
</script>```