微信小程序如何实现仿淘宝热搜词在搜索框中轮播功能
实现思路
思路比较简单，主要是两点，
1：input处于热搜提示词上层，用z-index实现2：热搜词轮播用swiper实现，方向为vertical3：在input聚焦时获取swiper当前值，设置为placeholder4：将swiper隐藏
代码
已封装成组件
组件代码：
wxss
wxss
.container { width: 100%; height: 80rpx; display: flex; flex-direction: row; justify-content: center; align-items: center; background: #ededed;}.search-container { width: 690rpx; height: 60rpx; display: flex; flex-direction: row; justify-content: flex-start; align-items: center; background: #fff; border-radius: 5rpx;}.swiper_container { margin-left: 15rpx; height: 60rpx; width: 100%; display: flex; flex-direction: row; justify-content: flex-start; align-items: center; position:absolute; z-index:1;}.swiper_item { height: 60rpx; font-size: 26rpx; color: #999; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: flex; flex-direction: row; justify-content: flex-start; align-items: center;}
js
Component({ /** * 组件的属性列表 */ properties: { msgList:{ type:JSON, value: [] } }, /** * 组件的初始数据 */ data: { placeholder:'', currentIndex:0, index:0, isFocus:false, msgList: [], content:'', confirmContent:'' }, ready(){ this.setData({ msgList:this.properties.msgList }) }, /** * 组件的方法列表 */ methods: { changeIndex(e){ this.setData({ index:e.detail.current }) }, focusInput(){ this.setData({ isFocus:true, placeholder:this.data.msgList[this.data.index].title }) }, blurInput(){ if (this.data.content == ""){ this.setData({ isFocus: false, currentIndex: this.data.index, placeholder: '' }) } }, confirm(e){ var confirmContent = '' if(e.detail.value==''){ confirmContent = this.data.placeholder }else{ confirmContent = e.detail.value } this.triggerEvent('search', {confirmContent}) }, inputContent(e){ this.setData({ content: e.detail.value }) } }})
json
{ "component": true, "usingComponents": {}}
页面代码
js
Page({ data: { msgList: [ { title: "朋友圈" }, { title: "文章" }, { title: "公共号" }, { title: "小程序" }, { title: "音乐" }, { title: "表情" }, { title: "订阅号" }] }, search(e){ wx.showToast({ icon:"none", title: "正在搜索"+e.detail.confirmContent, }) }})
wxss