|
|
<template>
|
|
|
<view class="u-swiper-wrap" :style="{
|
|
|
borderRadius: `${borderRadius}rpx`
|
|
|
}">
|
|
|
<swiper :current="elCurrent" @change="change" @animationfinish="animationfinish" :interval="interval" :circular="circular" :duration="duration" :autoplay="autoplay"
|
|
|
:previous-margin="effect3d ? effect3dPreviousMargin + 'rpx' : '0'" :next-margin="effect3d ? effect3dPreviousMargin + 'rpx' : '0'"
|
|
|
:style="{
|
|
|
height: height + 'rpx',
|
|
|
backgroundColor: bgColor
|
|
|
}">
|
|
|
<swiper-item class="u-swiper-item" v-for="(item, index) in list" :key="index">
|
|
|
<view class="u-list-image-wrap" @tap.stop.prevent="listClick(index)" :class="[uCurrent != index ? 'u-list-scale' : '']" :style="{
|
|
|
borderRadius: `${borderRadius}rpx`,
|
|
|
transform: effect3d && uCurrent != index ? 'scaleY(0.9)' : 'scaleY(1)',
|
|
|
margin: effect3d && uCurrent != index ? '0 20rpx' : 0,
|
|
|
}">
|
|
|
<image class="u-swiper-image" :src="item[name] || item" :mode="imgMode"></image>
|
|
|
<view v-if="title && item.title" class="u-swiper-title u-line-1" :style="[{
|
|
|
'padding-bottom': titlePaddingBottom
|
|
|
}, titleStyle]">
|
|
|
{{ item.title }}
|
|
|
</view>
|
|
|
</view>
|
|
|
</swiper-item>
|
|
|
</swiper>
|
|
|
<view class="u-swiper-indicator" :style="{
|
|
|
top: indicatorPos == 'topLeft' || indicatorPos == 'topCenter' || indicatorPos == 'topRight' ? '12rpx' : 'auto',
|
|
|
bottom: indicatorPos == 'bottomLeft' || indicatorPos == 'bottomCenter' || indicatorPos == 'bottomRight' ? '12rpx' : 'auto',
|
|
|
justifyContent: justifyContent,
|
|
|
padding: `0 ${effect3d ? '74rpx' : '24rpx'}`
|
|
|
}">
|
|
|
<block v-if="mode == 'rect'">
|
|
|
<view class="u-indicator-item-rect" :class="{ 'u-indicator-item-rect-active': index == uCurrent }" v-for="(item, index) in list"
|
|
|
:key="index"></view>
|
|
|
</block>
|
|
|
<block v-if="mode == 'dot'">
|
|
|
<view class="u-indicator-item-dot" :class="{ 'u-indicator-item-dot-active': index == uCurrent }" v-for="(item, index) in list"
|
|
|
:key="index"></view>
|
|
|
</block>
|
|
|
<block v-if="mode == 'round'">
|
|
|
<view class="u-indicator-item-round" :class="{ 'u-indicator-item-round-active': index == uCurrent }" v-for="(item, index) in list"
|
|
|
:key="index"></view>
|
|
|
</block>
|
|
|
<block v-if="mode == 'number'">
|
|
|
<view class="u-indicator-item-number">{{ uCurrent + 1 }}/{{ list.length }}</view>
|
|
|
</block>
|
|
|
</view>
|
|
|
</view>
|
|
|
</template>
|
|
|
|
|
|
<script>
|
|
|
/**
|
|
|
* swiper 轮播图
|
|
|
* @description 该组件一般用于导航轮播，广告展示等场景,可开箱即用
|
|
|
* @tutorial https://www.uviewui.com/components/swiper.html
|
|
|
* @property {Array} list 轮播图数据，见官网"基本使用"说明
|
|
|
* @property {Boolean} title 是否显示标题文字，需要配合list参数，见官网说明（默认false）
|
|
|
* @property {String} mode 指示器模式，见官网说明（默认round）
|
|
|
* @property {String Number} height 轮播图组件高度，单位rpx（默认250）
|
|
|
* @property {String} indicator-pos 指示器的位置（默认bottomCenter）
|
|
|
* @property {Boolean} effect3d 是否开启3D效果（默认false）
|
|
|
* @property {Boolean} autoplay 是否自动播放（默认true）
|
|
|
* @property {String Number} interval 自动轮播时间间隔，单位ms（默认2500）
|
|
|
* @property {Boolean} circular 是否衔接播放，见官网说明（默认true）
|
|
|
* @property {String} bg-color 背景颜色（默认#f3f4f6）
|
|
|
* @property {String Number} border-radius 轮播图圆角值，单位rpx（默认8）
|
|
|
* @property {Object} title-style 自定义标题样式
|
|
|
* @property {String Number} effect3d-previous-margin mode = true模式的情况下，激活项与前后项之间的距离，单位rpx（默认50）
|
|
|
* @property {String} img-mode 图片的裁剪模式，详见image组件裁剪模式（默认aspectFill）
|
|
|
* @event {Function} click 点击轮播图时触发
|
|
|
* @example <u-swiper :list="list" mode="dot" indicator-pos="bottomRight"></u-swiper>
|
|
|
*/
|
|
|
export default {
|
|
|
name: "u-swiper",
|
|
|
props: {
|
|
|
// 轮播图的数据,格式如：[{image: 'xxxx', title: 'xxxx'}，{image: 'yyyy', title: 'yyyy'}]，其中title字段可选
|
|
|
list: {
|
|
|
type: Array,
|
|
|
default () {
|
|
|
return [];
|
|
|
}
|
|
|
},
|
|
|
// 是否显示title标题
|
|
|
title: {
|
|
|
type: Boolean,
|
|
|
default: false
|
|
|
},
|
|
|
// 用户自定义的指示器的样式
|
|
|
indicator: {
|
|
|
type: Object,
|
|
|
default () {
|
|
|
return {};
|
|
|
}
|
|
|
},
|
|
|
// 圆角值
|
|
|
borderRadius: {
|
|
|
type: [Number, String],
|
|
|
default: 8
|
|
|
},
|
|
|
// 隔多久自动切换
|
|
|
interval: {
|
|
|
type: [String, Number],
|
|
|
default: 3000
|
|
|
},
|
|
|
// 指示器的模式，rect|dot|number|round
|
|
|
mode: {
|
|
|
type: String,
|
|
|
default: 'round'
|
|
|
},
|
|
|
// list的高度，单位rpx
|
|
|
height: {
|
|
|
type: [Number, String],
|
|
|
default: 250
|
|
|
},
|
|
|
// 指示器的位置，topLeft|topCenter|topRight|bottomLeft|bottomCenter|bottomRight
|
|
|
indicatorPos: {
|
|
|
type: String,
|
|
|
default: 'bottomCenter'
|
|
|
},
|
|
|
// 是否开启缩放效果
|
|
|
effect3d: {
|
|
|
type: Boolean,
|
|
|
default: false
|
|
|
},
|
|
|
// 3D模式的情况下，激活item与前后item之间的距离，单位rpx
|
|
|
effect3dPreviousMargin: {
|
|
|
type: [Number, String],
|
|
|
default: 50
|
|
|
},
|
|
|
// 是否自动播放
|
|
|
autoplay: {
|
|
|
type: Boolean,
|
|
|
default: true
|
|
|
},
|
|
|
// 自动轮播时间间隔，单位ms
|
|
|
duration: {
|
|
|
type: [Number, String],
|
|
|
default: 500
|
|
|
},
|
|
|
// 是否衔接滑动，即到最后一张时接着滑动，是否自动切换到第一张
|
|
|
circular: {
|
|
|
type: Boolean,
|
|
|
default: true
|
|
|
},
|
|
|
// 图片的裁剪模式
|
|
|
imgMode: {
|
|
|
type: String,
|
|
|
default: 'aspectFill'
|
|
|
},
|
|
|
// 从list数组中读取的图片的属性名
|
|
|
name: {
|
|
|
type: String,
|
|
|
default: 'image'
|
|
|
},
|
|
|
// 背景颜色
|
|
|
bgColor: {
|
|
|
type: String,
|
|
|
default: '#f3f4f6'
|
|
|
},
|
|
|
// 初始化时，默认显示第几项
|
|
|
current: {
|
|
|
type: [Number, String],
|
|
|
default: 0
|
|
|
},
|
|
|
// 标题的样式，对象形式
|
|
|
titleStyle: {
|
|
|
type: Object,
|
|
|
default() {
|
|
|
return {}
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
watch: {
|
|
|
// 如果外部的list发生变化，判断长度是否被修改，如果前后长度不一致，重置uCurrent值，避免溢出
|
|
|
list(nVal, oVal) {
|
|
|
if(nVal.length !== oVal.length) this.uCurrent = 0;
|
|
|
},
|
|
|
// 监听外部current的变化，实时修改内部依赖于此测uCurrent值，如果更新了current，而不是更新uCurrent，
|
|
|
// 就会错乱，因为指示器是依赖于uCurrent的
|
|
|
current(n) {
|
|
|
this.uCurrent = n;
|
|
|
}
|
|
|
},
|
|
|
data() {
|
|
|
return {
|
|
|
uCurrent: this.current // 当前活跃的swiper-item的index
|
|
|
};
|
|
|
},
|
|
|
computed: {
|
|
|
justifyContent() {
|
|
|
if (this.indicatorPos == 'topLeft' || this.indicatorPos == 'bottomLeft') return 'flex-start';
|
|
|
if (this.indicatorPos == 'topCenter' || this.indicatorPos == 'bottomCenter') return 'center';
|
|
|
if (this.indicatorPos == 'topRight' || this.indicatorPos == 'bottomRight') return 'flex-end';
|
|
|
},
|
|
|
titlePaddingBottom() {
|
|
|
let tmp = 0;
|
|
|
if (this.mode == 'none') return '12rpx';
|
|
|
if (['bottomLeft', 'bottomCenter', 'bottomRight'].indexOf(this.indicatorPos) >= 0 && this.mode == 'number') {
|
|
|
tmp = '60rpx';
|
|
|
} else if (['bottomLeft', 'bottomCenter', 'bottomRight'].indexOf(this.indicatorPos) >= 0 && this.mode != 'number') {
|
|
|
tmp = '40rpx';
|
|
|
} else {
|
|
|
tmp = '12rpx';
|
|
|
}
|
|
|
return tmp;
|
|
|
},
|
|
|
// 因为uni的swiper组件的current参数只接受Number类型，这里做一个转换
|
|
|
elCurrent() {
|
|
|
return Number(this.current);
|
|
|
}
|
|
|
},
|
|
|
methods: {
|
|
|
listClick(index) {
|
|
|
this.$emit('click', index);
|
|
|
},
|
|
|
change(e) {
|
|
|
let current = e.detail.current;
|
|
|
this.uCurrent = current;
|
|
|
// 发出change事件，表示当前自动切换的index，从0开始
|
|
|
this.$emit('change', current);
|
|
|
},
|
|
|
// 头条小程序不支持animationfinish事件，改由change事件
|
|
|
// 暂不监听此事件，因为不再给swiper绑定uCurrent属性
|
|
|
animationfinish(e) {
|
|
|
// #ifndef MP-TOUTIAO
|
|
|
// this.uCurrent = e.detail.current;
|
|
|
// #endif
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
</script>
|
|
|
|
|
|
<style lang="scss" scoped>
|
|
|
@import "../../libs/css/style.components.scss";
|
|
|
|
|
|
.u-swiper-wrap {
|
|
|
position: relative;
|
|
|
overflow: hidden;
|
|
|
transform: translateY(0);
|
|
|
}
|
|
|
|
|
|
.u-swiper-image {
|
|
|
width: 100%;
|
|
|
will-change: transform;
|
|
|
height: 100%;
|
|
|
/* #ifndef APP-NVUE */
|
|
|
display: block;
|
|
|
/* #endif */
|
|
|
/* #ifdef H5 */
|
|
|
pointer-events: none;
|
|
|
/* #endif */
|
|
|
}
|
|
|
|
|
|
.u-swiper-indicator {
|
|
|
padding: 0 24rpx;
|
|
|
position: absolute;
|
|
|
@include vue-flex;
|
|
|
width: 100%;
|
|
|
z-index: 1;
|
|
|
}
|
|
|
|
|
|
.u-indicator-item-rect {
|
|
|
width: 26rpx;
|
|
|
height: 8rpx;
|
|
|
margin: 0 6rpx;
|
|
|
transition: all 0.5s;
|
|
|
background-color: rgba(0, 0, 0, 0.3);
|
|
|
}
|
|
|
|
|
|
.u-indicator-item-rect-active {
|
|
|
background-color: rgba(255, 255, 255, 0.8);
|
|
|
}
|
|
|
|
|
|
.u-indicator-item-dot {
|
|
|
width: 14rpx;
|
|
|
height: 14rpx;
|
|
|
margin: 0 6rpx;
|
|
|
border-radius: 20rpx;
|
|
|
transition: all 0.5s;
|
|
|
background-color: rgba(0, 0, 0, 0.3);
|
|
|
}
|
|
|
|
|
|
.u-indicator-item-dot-active {
|
|
|
background-color: rgba(255, 255, 255, 0.8);
|
|
|
}
|
|
|
|
|
|
.u-indicator-item-round {
|
|
|
width: 14rpx;
|
|
|
height: 14rpx;
|
|
|
margin: 0 6rpx;
|
|
|
border-radius: 20rpx;
|
|
|
transition: all 0.5s;
|
|
|
background-color: rgba(0, 0, 0, 0.3);
|
|
|
}
|
|
|
|
|
|
.u-indicator-item-round-active {
|
|
|
width: 34rpx;
|
|
|
background-color: rgba(255, 255, 255, 0.8);
|
|
|
}
|
|
|
|
|
|
.u-indicator-item-number {
|
|
|
padding: 6rpx 16rpx;
|
|
|
line-height: 1;
|
|
|
background-color: rgba(0, 0, 0, 0.3);
|
|
|
border-radius: 100rpx;
|
|
|
font-size: 26rpx;
|
|
|
color: rgba(255, 255, 255, 0.8);
|
|
|
}
|
|
|
|
|
|
.u-list-scale {
|
|
|
transform-origin: center center;
|
|
|
}
|
|
|
|
|
|
.u-list-image-wrap {
|
|
|
width: 100%;
|
|
|
height: 100%;
|
|
|
flex: 1;
|
|
|
transition: all 0.5s;
|
|
|
overflow: hidden;
|
|
|
box-sizing: content-box;
|
|
|
position: relative;
|
|
|
}
|
|
|
|
|
|
.u-swiper-title {
|
|
|
position: absolute;
|
|
|
background-color: rgba(0, 0, 0, 0.3);
|
|
|
bottom: 0;
|
|
|
left: 0;
|
|
|
width: 100%;
|
|
|
font-size: 28rpx;
|
|
|
padding: 12rpx 24rpx;
|
|
|
color: rgba(255, 255, 255, 0.9);
|
|
|
}
|
|
|
|
|
|
.u-swiper-item {
|
|
|
@include vue-flex;
|
|
|
overflow: hidden;
|
|
|
align-items: center;
|
|
|
}
|
|
|
</style>
|