【报Bug】关于focus加载页面无法将自动获取焦点

示例代码：

<template>
<view>
<view class="topBody">
<text class="bar_title">入库</text>
<image @click="goMyshelf" style="width: 30px; height: 30px; position: absolute; right: 10px; top: 32px;"
src="../../../static/main.png" mode="widthFix"></image>
</view>
<view class="classInput">
<text class="classInput_text">指示号</text>
<input class="classInput_input" :focus="isFocusGz" @blur="pointBlurGz" @confirm="searchGzNo" type="text" @input="gzNoInput" :value="gzNo" placeholder="指示号" />
<text class="classInput_input_text2" style="color: red;">箱数：{{countHks}}</text>
</view>
<view class="classInput">
<text class="classInput_text">发行号</text>
<input class="classInput_input" :focus="isFocusFx" @blur="pointBlurFx" @confirm="searchFxNo" type="text" @input="fxNoInput" :value="fxNo" placeholder="发行号" />
<text class="classInput_input_text2">{{wariGaiType == "S" ? "一贯" : wariGaiType == "" ? "" : "非一贯" }}</text>
</view>
<view class="classInput">
<text class="classInput_text">托盘号</text>
<input class="classInput_input" :focus="isFocusTp" @blur="pointBlurTp" type="text" @confirm="searchTpNo" @input="tpNoInput" :value="tpNo" placeholder="托盘号" />
<text class="classInput_input_text2">{{wariGaiMdl}}</text>
</view>
<view class="classInput">
<text class="classInput_text">管理号</text>
<input class="classInput_input" :focus="isFocusGl" @blur="pointBlurGl" type="text" @input="glNoInput" :value="glNo" placeholder="管理号" />
<text class="classInput_input_text2"></text>
</view>
<view class="classInput">
<button type="default" class="ubutton" @click="clickOk">确认</button>
<button type="default" class="ubutton" @click="clickSearch">查询</button>
<button type="default" class="ubutton" @click="clickReset">重置</button>
</view>
<view class="classInput">
<text class="utext">发行号数：{{issueCount}}</text><text class="utext">内装容器数：{{nzCount}}</text>
</view>
<view class="tableContent" :style="{'height': tableHeight +'!important'}">
<view class="tableTitle">
<label class="tableTitleLabelItem" style="background-color:#008577;">管理号</label>
<label class="tableTitleLabelItem" style="background-color:#008577;">托盘号</label>
<label class="tableTitleLabelItem" style="background-color:#008577;">发行号</label>
<label class="tableTitleLabelItem" style="background-color:#008577;">是否一贯</label>
<label class="tableTitleLabelItem" style="background-color:#008577;">内装容器</label>
<label class="tableTitleLabelItem" style="background-color:#008577;">入库状态</label>
</view>
<view v-for="item in list" class="tableConentView">
<label class="tableTitleLabelItem" :style="{'background-color': item['inFlag'] == '入库' ? '#6BCB77 !important' : '#FFD93D !important' }">{{item["Con_Mng_No"]}}</label>
<label class="tableTitleLabelItem" :style="{'background-color': item['inFlag'] == '入库' ? '#6BCB77 !important' : '#FFD93D !important' }">{{item["pac_no"]}}</label>
<label class="tableTitleLabelItem" :style="{'background-color': item['inFlag'] == '入库' ? '#6BCB77 !important' : '#FFD93D !important' }">{{item["issue_no"]}}</label>
<label class="tableTitleLabelItem" :style="{'background-color': item['inFlag'] == '入库' ? '#6BCB77 !important' : '#FFD93D !important' }">{{item["Wari_Gai_Type"]}}</label>
<label class="tableTitleLabelItem" :style="{'background-color': item['inFlag'] == '入库' ? '#6BCB77 !important' : '#FFD93D !important' }">{{item["koso_mdl"]}}</label>
<label class="tableTitleLabelItem" :style="{'background-color': item['inFlag'] == '入库' ? '#6BCB77 !important' : '#FFD93D !important' }">{{item["inFlag"]}}</label>
</view>
</view>
<view v-if="showKeyboard">
<keyboard-listener @keydown="keyboardClick($event)"></keyboard-listener>
</view>
</view>
</template>

<script>
import * as http from '@/common/http.js';
import keyboardListener from '@/components/keyboard-listener/keyboard-listener.vue';
import App from 'App';
export default {
data() {
return {
isFocusGz: true,
isFocusFx: false,
isFocusTp: false,
isFocusGl: false,
isCanSubmit: false,
gzNo:'',
fxNo:'',
tpNo:'',
glNo:'',
issueCount:'',
countHks: '',
wariGaiMdl:'',
wariGaiType:'',
nzCount:'',
list:[],
tableHeight: '300px',
isWariGaiMdl : false,
showKeyboard : true
}
},
onShow()
{
this.showKeyboard = true;
this.clickReset();
},
onHide()
{
this.showKeyboard = false;
},
onLoad()
{
let _this = this;
_this.isFocusGz=false
_this.$nextTick(function() {
_this.isFocusGz = true;
});
uni.getSystemInfo({
success:function(res){
_this.tableHeight = (res.windowHeight - 300) + 'px';
console.log(_this.tableHeight);
}
});
},
methods: {
keyboardClick(e)
{
if(e.keyCode == 13)
{
// this.clickOk();
}
},
pointBlurGz() {
this.isFocusGz = false;
},
pointBlurFx() {
this.isFocusFx = false;
},
pointBlurTp() {
this.isFocusTp = false;
},
pointBlurGl() {
this.isFocusGl = false;
},
gzNoInput(e) {
this.gzNo = e.detail.value;
},
fxNoInput(e) {
this.fxNo = e.detail.value;
},
tpNoInput(e)
{
this.tpNo = e.detail.value;
},
glNoInput(e)
{
this.glNo = e.detail.value;
},

操作步骤：

无

预期结果：

点击登录后光标选中focus为true的input框

实际结果：

第一次登录没有将focus为true的选中光标，切换tabbar菜单后光标又可以正常赋值