小程序顶部navbar(非Slider)

wxml(该导航栏的实现原理是当你要显示哪个view在最前端的时候隐藏其他的view):

<!-- 顶部navbar导航栏 -->
<view class="navbar">
<text wx:for="{{navbar}}" data-index="{{index}}"
class="item{{currentIndex==index?'active':''}}"
bindtap="navbarTab" wx:key="unique">{{item}}</text>
</view>
<view hidden="{{currentIndex!==0}}" class='box'>
<text>我是第一个view</text>
</view>
<view hidden="{{currentIndex!==1}}" class='box'>
<text>我是第一个view</text>
</view>
<view hidden="{{currentIndex!==2}}" class='box'>
<text>我是第一个view</text>
</view>

js(根据不同的需求,data里面navbar的值和个数可以按需修改):

Page({
data: {
navbar: ["进行中", "成功", "失败"],
currentIndex: 0,
status: false,
},
// navbar切换
navbarTab: function (e) {
this.setData({
currentIndex: e.currentTarget.dataset.index
});
}
})

wxss(因为navbar的高度为70rpx,故box的margin-top需为70rpx):

.navbar {
display: flex;
width: 100%;
flex-direction: row;
line-height: 70rpx;
overflow: auto;
position: fixed;
top: 0;
}
.navbar .item {
flex: auto;
font-size: 30rpx;
text-align: center;
background: #fff;
color: #888;
}
.navbar .item.active {
color: #09bb07;
position: relative;
}
.navbar .item.active::after {
content: "";
display: block;
position: absolute;
height: 4rpx;
bottom: 0;
left: 0;
right: 0;
background: #09bb07;
}
.navbar:after {
content: " ";
position: absolute;
left: 0;
bottom: 0;
right: 0;
height: 1px;
border-bottom: 1rpx solid #e5e5e5;
color: #e5e5e5;
}
.box {
margin-top: 70rpx;
background-color: #f8f8f8;
padding: 0;
justify-content: space-between;
box-sizing: border-box;
flex-direction: column;
display: flex;
}
posted @ 2018-11-02 10:33  linwene  阅读(1147)  评论(0编辑  收藏  举报