当span class ="之前点击"时,单击",
我希望它隐藏,然后输入class =" afterplick"显示。
并且显示的输入标签必须集中在聚焦上!
问题是当我尝试使用$ refs.fterclick访问该DOM并给予.focus()时,一个意外的错误表明.focus()不是函数。
如何解决这个问题?谢谢。
var myApp = new Vue({
el: '#app',
data: {
onEdit: false,
msg: 'Something in here',
},
methods: {
switchAndFocus() {
if(!this.onEdit) {
this.onEdit = true;
this.$refs.afterClick.focus();
}
},
},
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.3/vue.min.js"></script>
<div id="app">
<span class="before-click" @click="switchAndFocus()" v-show="!onEdit">{{msg}}</span>
<input type="text" class="after-click" ref="afterClick" :value="msg" v-show="onEdit">
</div>
将焦点事件包含在nexttick中 - 这将推迟焦点事件,直到DOM更新并显示输入。
https://v2.vuejs.org/v2/api/#vue-nexttick
var myApp = new Vue({
el: '#app',
data: {
onEdit: false,
msg: 'Something in here',
},
methods: {
switchAndFocus() {
if(!this.onEdit) {
this.onEdit = true;
this.$nextTick(function(){
this.$refs.afterClick.focus();
});
}
},
},
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.3/vue.min.js"></script>
<div id="app">
<span class="before-click" @click="switchAndFocus()" v-show="!onEdit">{{msg}}</span>
<input type="text" class="after-click" ref="afterClick" :value="msg" v-show="onEdit">
</div>