uniapp输入框input失去焦点，自动获得焦点

<template>
	<view>
		<view class="backgrounds"></view>
		<view class="cdj_img">
			<image style="z-index: 2;" src="../../static/bor.png"></image>
			<textarea style="z-index: -1;" type="text" v-model="text" ref="inputText" autofocus="autofocus" :focus="focus" @blur="poinblur"  class="cdj_input"/>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				text:'',
				focus:true,
			}
		},
		watch: {
			 text(text) {
				if( text.indexOf('\n') != -1 ){ //敲了回车键了
				   var text = this.text;
				   uni.showToast({
				   	icon:"none",
				       title: text,
				       duration: 2000
				   });
				   this.text = "";
				}
			}
		},
		methods: {
			poinblur:function(){
				this.focus = false;
			    this.$nextTick(() => {
				  this.focus = true;
			    });
				
			}
		}
	}
</script>

<style>
	.backgrounds{
		position: absolute;
		width: 100%;
		height: 100%;
		background-color: #f8f8f8;
		z-index: 1;
	}
	.cdj_img{
		position: absolute;
		margin-left: 10%;
		margin-top: 30%;
	}
	.cdj_input{
		position: fixed;
		left: 0;
		top: 0;
		width: 100%;
		height: 100%;
		border:1rpx solid #cfcfcf;
	}
</style>