小程序顶部搜索框怎么实现

这篇文章主要为大家详细介绍了小程序实现搜索框功能，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

小程序顶部搜索框怎么实现

实现效果如下：

具体代码：

1、WXML文件

<!--搜索框 -->
<view class=weui-search-bar>
 <view class=weui-search-bar__form>
 <!--点击之后，出现input框 -->
 <view class=weui-search-bar__box>
  <icon class=weui-icon-search_in-box type=search size=14></icon>
  <input type=text class=weui-search-bar__input placeholder=搜索 value={{inputVal}} focus={{inputShowed}} bindinput=inputTyping />
  <!--输入款字数大于0，则显示清除按钮 -->
  <view class=weui-icon-clear wx:if={{inputVal.length > 0}} bindtap=clearInput>
  <icon type=clear size=14></icon>
  </view>
 </view>
 <!--没点击之前，只是一些文字和图标 -->
 <label class=weui-search-bar__label hidden={{inputShowed}} bindtap=showInput>
  <icon class=weui-icon-search type=search size=14></icon>
  <view class=weui-search-bar__text>搜索</view>
 </label>
 </view>
 <!--动态出现的“取消”键 -->
 <view class=weui-search-bar__cancel-btn hidden={{!inputShowed}} bindtap=hideInput>取消</view>
</view>

2、WXSS文件

.weui-search-bar {
 position: relative;
 padding: 8px 10px;
 display: -webkit-box;
 display: -webkit-flex;
 display: flex;
 box-sizing: border-box;
 background-color: #EFEFF4;
 border-top: 1rpx solid #D7D6DC;
 border-bottom: 1rpx solid #D7D6DC;
  
}
.weui-icon-search {
 margin-right: 8px;
 font-size: inherit;
}
.weui-icon-search_in-box {
 position: absolute;
 left: 10px;
 top: 7px;
}
.weui-search-bar__text {
 display: inline-block;
 font-size: 14px;
 vertical-align: middle;
}
.weui-search-bar__form {
 position: relative;
 -webkit-box-flex: 1;
 -webkit-flex: auto;
   flex: auto;
 border-radius: 5px;
 background: #FFFFFF;
 border: 1rpx solid #E6E6EA;
}
.weui-search-bar__box {
 position: relative;
 padding-left: 30px;
 padding-right: 30px;
 width: 100%;
 box-sizing: border-box;
 z-index: 1;
}
.weui-search-bar__input {
 height: 28px;
 line-height: 28px;
 font-size: 14px;
}
.weui-icon-clear {
 position: absolute;
 top: 0;
 right: 0;
 padding: 7px 8px;
 font-size: 0;
}
.weui-search-bar__label {
 position: absolute;
 top: 0;
 right: 0;
 bottom: 0;
 left: 0;
 z-index: 2;
 border-radius: 3px;
 text-align: center;
 color: #9B9B9B;
 background: #FFFFFF;
 line-height: 28px;
}
.weui-search-bar__cancel-btn {
 margin-left: 10px;
 line-height: 28px;
 color: #09BB07;
 white-space: nowrap;
 font-size: 30rpx;
}

3、JS文件

showInput: function () {
this.setData({
 inputShowed: true
});
},
hideInput: function () {
this.setData({
 inputVal: ,
 inputShowed: false
});
// getList(this);
},
clearInput: function () {
this.setData({
 inputVal: 
});
// getList(this);
},
inputTyping: function (e) {
//搜索数据
// getList(this, e.detail.value);
this.setData({
 inputVal: e.detail.value
});
}

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