picker组件在ios端调试时选项太长自动换行并占用index的问题

手机型号：12pro
系统：IOS14.3（iphone7同系统显示正常。。。。）

安卓h5端正常，选项超出部分有省略号

ios端自动换行了，而且切换选项后换行部分会占用一个index导致第二列数据改变

<template>  
    <view>  
        <picker class="live-titlewrap"  mode="multiSelector" :range="chooserang" range-key="alt" :value="choosetype" @columnchange="columnTap">picker测试</picker>  
    </view>  
</template>  

<script>  
    export default {  
        data() {  
            return {  
                choose:[   //摄像头选择栏数据  
                    {  
                        id:'1',  
                        alt:'南区南区南区南区',  
                        child:[  
                            {  
                                id:'11',  
                                alt:'机房',  
                                child:[  
                                    {  
                                        id:'111',  
                                        alt:'#117',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#118',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#119',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#117',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#117',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#118',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#119',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#117',  
                                    }  
                                ]  
                            },  
                            {  
                                id:'11',  
                                alt:'机房2',  
                                child:[  
                                    {  
                                        id:'111',  
                                        alt:'#117',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#118',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#119',  
                                    },  
                                    {  
                                        id:'111',  
                                        alt:'#117',  
                                    }  
                                ]  
                            }  
                        ]  
                    },  
                    {  
                        id:'2',  
                        alt:'北区',  
                        child:[  
                            {  
                                id:'21',  
                                alt:'作业区',  
                                child:[  
                                    {  
                                        id:'211',  
                                        alt:'#907',  
                                    },  
                                    {  
                                        id:'211',  
                                        alt:'#9027',  
                                    }  
                                ]  
                            },  
                            {  
                                id:'21',  
                                alt:'作业',  
                                child:[  
                                    {  
                                        id:'211',  
                                        alt:'#90',  
                                    }  
                                ]  
                            }  
                        ]  
                    },  
                    {  
                        id:'33',  
                        alt:'西区',  
                        child:[  
                            {  
                                id:'31',  
                                alt:'机房',  
                                child:[  
                                    {  
                                        id:'311',  
                                        alt:'#17',  
                                    },  
                                    {  
                                        id:'312',  
                                        alt:'#18',  
                                    }  
                                ]  
                            }  
                        ]  
                    },  
                ],  
                choosetype:[0,0,0],   //摄像头选中index  
                chooserang:[]  ////摄像头势类型  
            };  
        },  
        onLoad() {  
            var that = this  

            //摄像头选择框rang数据初始化  
            var chooserang1 = []  
            var chooserang2 = []  
            var chooserang3 = []  
            for(let f in that.choose){  
                chooserang1[f] = {  
                    id:that.choose[f].id,  
                    alt:that.choose[f].alt  
                }  
            }  
            for(let s in that.choose[that.choosetype[0]].child){  
                chooserang2[s] = {  
                    id:that.choose[that.choosetype[0]].child[s].id,  
                    alt:that.choose[that.choosetype[0]].child[s].alt  
                }  
            }  
            for(let t in that.choose[that.choosetype[0]].child[that.choosetype[1]].child){  
                chooserang3[t] = {  
                    id:that.choose[that.choosetype[0]].child[that.choosetype[1]].child[t].id,  
                    alt:that.choose[that.choosetype[0]].child[that.choosetype[1]].child[t].alt  
                }  
            }  
            that.chooserang[0] = chooserang1  
            that.chooserang[1] = chooserang2  
            that.chooserang[2] = chooserang3  
        },  
        methods:{  
            columnTap(e){  
                // console.log(e)  
                var that = this  
                var num = e.detail.column  
                var typearr = that.choosetype  
                typearr[num] = e.detail.value  
                for(let i=num+1;i<typearr.length;i++){  
                    typearr[i] = 0  
                }  

                var chooserang2 = []  
                var chooserang3 = []  
                for(let s in that.choose[typearr[0]].child){  
                    chooserang2[s] = {  
                        id:that.choose[typearr[0]].child[s].id,  
                        alt:that.choose[typearr[0]].child[s].alt  
                    }  
                }  
                for(let t in that.choose[typearr[0]].child[typearr[1]].child){  
                    chooserang3[t] = {  
                        id:that.choose[typearr[0]].child[typearr[1]].child[t].id,  
                        alt:that.choose[typearr[0]].child[typearr[1]].child[t].alt  
                    }  
                }  
                that.chooserang.splice(1,1,chooserang2)  
                that.chooserang.splice(2,1,chooserang3)  

            },  
        }  
    }  
</script>  

<style lang="less">  

</style>