小程序如何自定义tabbar
如何自定义底部tabbar 组件呢?
index.js 的内容:
Component({
data: {
selected: 0,
color: "#7A7E83",
selectedColor: "#3cc51f",
list: [{
pagePath: "/index/index",
iconPath: "/image/icon_component.png",
selectedIconPath: "/image/icon_component_HL.png",
text: "组件"
}, {
pagePath: "/index/index2",
iconPath: "/image/icon_API.png",
selectedIconPath: "/image/icon_API_HL.png",
text: "接口"
}]
},
attached() {
},
methods: {
switchTab(e) {
const data = e.currentTarget.dataset
const url = data.path
wx.switchTab({url})
this.setData({
selected: data.index
})
}
}
})
index.json的内容:
{
"component": true
}
index.wxml的内容:
<!--miniprogram/custom-tab-bar/index.wxml-->
<cover-view class="tab-bar">
<cover-view class="tab-bar-border"></cover-view>
<cover-view wx:for="{{list}}" wx:key="index" class="tab-bar-item" data-path="{{item.pagePath}}" data-index="{{index}}" bindtap="switchTab">
<cover-image src="{{selected === index ? item.selectedIconPath : item.iconPath}}"></cover-image>
<cover-view style="color: {{selected === index ? selectedColor : color}}">{{item.text}}</cover-view>
</cover-view>
</cover-view>
index.wxss的内容
.tab-bar {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 48px;
background: white;
display: flex;
padding-bottom: env(safe-area-inset-bottom);
}
.tab-bar-border {
background-color: rgba(0, 0, 0, 0.33);
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 1px;
transform: scaleY(0.5);
}
.tab-bar-item {
flex: 1;
text-align: center;
display: flex;
justify-content: center;
align-items: center;
flex-direction: column;
}
.tab-bar-item cover-image {
width: 27px;
height: 27px;
}
.tab-bar-item cover-view {
font-size: 10px;
}
效果: