近日需求,設計稿如圖markdown
要實現一個特殊的底部導航欄,採用官方提供的自定義tabbar組件,添加底部tab頁面,切換圖片閃屏。xss
解決採用swiper輪播圖+自定義組件函數
<view class="jtab-bar">
<view class="jtab-bar-item" wx:for="{{list}}" wx:key="index" data-index="{{index}}" bindtap="switchTab">
<image wx:if="{{item.type === 'image'}}" class="jcover-img-bigicon"
src="{{selected === index ? item.iconSelect : item.icon}}"></image>
<view class="jtab-text" wx:else style="color: {{selected === index ? selectedColor : color}}">{{item.text}}</view>
</view>
</view>
複製代碼
Component({
data: {
selected: 0,
color: "#999999",
selectedColor: "#032F82",
list: [
{
type: 'text',
text: "首頁"
},
{
type: 'image',
icon: '../../image/icon_map.png',
iconSelect: '../../image/icon_map_select.png',
text: ''
},
{
type: 'text',
text: "個人"
}]
},
attached() {
},
methods: {
switchTab(e) {
const data = e.currentTarget.dataset
this.setData({selected: data.index})
this.triggerEvent("setTab", data.index)
}
}
})
複製代碼
.jtab-bar {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 100rpx;
background: white;
display: flex;
align-items: center;
padding-bottom: env(safe-area-inset-bottom);
box-shadow: 0px -2rpx 2rpx rgba(153, 153, 153, 0.1);
}
.jtab-bar-item {
text-align: center;
flex: 1;
height: 100rpx;
}
.jtab-bar-item .jtab-text {
height: 100rpx;
line-height: 100rpx;
}
.jcover-img-bigicon {
position: fixed;
bottom: 0rpx;
width: 210rpx;
height: 128rpx;
padding-bottom: env(safe-area-inset-bottom);
margin: 0 auto;
right: 0;
left: 0;
}
複製代碼
使用的兩張圖片:flex
<view>
<swiper class="jswipper-block" current="{{currentTab}}" duration="{{100}}">
<block wx:for="{{background}}" wx:key="*this">
<swiper-item catchtouchmove="swipperStop">
<view class="swiper-item {{item}}">{{item}}</view>
</swiper-item>
</block>
</swiper>
<jtabbar bindsetTab="setTabbar"/>
</view>
複製代碼
這裏使用catchtouchmove="swipperStop" swipperStop是個空函數來處理,禁止手動滑動this
.jswipper-block {
height: calc(100vh - 170rpx);
background: #F7F8F9;
}
複製代碼
/**
* 頁面的初始數據
*/
data: {
background: ['demo-text-1', 'demo-text-2', 'demo-text-3'],
currentTab: 0
},
setTabbar({detail}) {
this.setData({currentTab: detail})
},
// 輪播圖 禁止手動滑動 catchtouchmove="swipperStop"
swipperStop(){
},
複製代碼
暫完。spa