uni-swiper-dot.vue
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<template>
<view class="uni-swiper__warp">
<slot />
<view v-if="mode === 'default'" :style="{'bottom':dots.bottom + 'px'}" class="uni-swiper__dots-box" key='default'>
<view v-for="(item,index) in info" :style="{
'width': (index === current? dots.width*2:dots.width ) + 'px','height':dots.width/3 +'px' ,'background-color':index !== current?dots.backgroundColor:dots.selectedBackgroundColor,'border-radius':'0px'}" :key="index" class="uni-swiper__dots-item uni-swiper__dots-bar" />
</view>
<view v-if="mode === 'dot'" :style="{'bottom':dots.bottom + 'px'}" class="uni-swiper__dots-box" key='dot'>
<view v-for="(item,index) in info" :style="{
'width': dots.width + 'px','height':dots.height +'px' ,'background-color':index !== current?dots.backgroundColor:dots.selectedBackgroundColor,'border':index !==current ? dots.border:dots.selectedBorder}" :key="index" class="uni-swiper__dots-item" />
</view>
<view v-if="mode === 'round'" :style="{'bottom':dots.bottom + 'px'}" class="uni-swiper__dots-box" key='round'>
<view v-for="(item,index) in info" :class="[index === current&&'uni-swiper__dots-long']" :style="{
'width':(index === current? dots.width*3:dots.width ) + 'px','height':dots.height +'px' ,'background-color':index !== current?dots.backgroundColor:dots.selectedBackgroundColor,'border':index !==current ? dots.border:dots.selectedBorder}" :key="index" class="uni-swiper__dots-item " />
</view>
<view v-if="mode === 'nav'" key='nav' :style="{'background-color':dotsStyles.backgroundColor,'bottom':'0'}" class="uni-swiper__dots-box uni-swiper__dots-nav">
<text :style="{'color':dotsStyles.color}" class="uni-swiper__dots-nav-item">{{ (current+1)+"/"+info.length +' ' +info[current][field] }}</text>
</view>
<view v-if="mode === 'indexes'" key='indexes' :style="{'bottom':dots.bottom + 'px'}" class="uni-swiper__dots-box">
<view v-for="(item,index) in info" :style="{
'width':dots.width + 'px','height':dots.height +'px' ,'color':index === current?dots.selectedColor:dots.color,'background-color':index !== current?dots.backgroundColor:dots.selectedBackgroundColor,'border':index !==current ? dots.border:dots.selectedBorder}" :key="index" class="uni-swiper__dots-item uni-swiper__dots-indexes"><text class="uni-swiper__dots-indexes-text">{{ index+1 }}</text></view>
</view>
</view>
</template>
<script>
/**
* SwiperDod 轮播图指示点
* @description 自定义轮播图指示点
* @tutorial https://ext.dcloud.net.cn/plugin?id=284
* @property {Number} current 当前指示点索引，必须是通过 `swiper` 的 `change` 事件获取到的 `e.detail.current`
* @property {String} mode = [default|round|nav|indexes] 指示点的类型
* @value defualt 默认指示点
* @value round 圆形指示点
* @value nav 条形指示点
* @value indexes 索引指示点
* @property {String} field mode 为 nav 时，显示的内容字段（mode = nav 时必填）
* @property {String} info 轮播图的数据，通过数组长度决定指示点个数
* @property {Object} dotsStyles 指示点样式
* @event {Function} clickItem 组件触发点击事件时触发，e={currentIndex}
*/
export default {
name: 'UniSwiperDot',
props: {
info: {
type: Array,
default () {
return []
}
},
current: {
type: Number,
default: 0
},
dotsStyles: {
type: Object,
default () {
return {}
}
},
// 类型 ：default(默认) indexes long nav
mode: {
type: String,
default: 'default'
},
// 只在 nav 模式下生效，变量名称
field: {
type: String,
default: ''
}
},
data() {
return {
dots: {
width: 8,
height: 8,
bottom: 10,
color: '#fff',
backgroundColor: 'rgba(0, 0, 0, .3)',
border: '1px rgba(0, 0, 0, .3) solid',
selectedBackgroundColor: '#333',
selectedBorder: '1px rgba(0, 0, 0, .9) solid'
}
}
},
watch: {
dotsStyles(newVal) {
this.dots = Object.assign(this.dots, this.dotsStyles)
},
mode(newVal) {
if (newVal === 'indexes') {
this.dots.width = 20
this.dots.height = 20
} else {
this.dots.width = 8
this.dots.height = 8
}
}
},
created() {
if (this.mode === 'indexes') {
this.dots.width = 20
this.dots.height = 20
}
this.dots = Object.assign(this.dots, this.dotsStyles)
}
}
</script>
<style scoped>
.uni-swiper__warp {
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
flex: 1;
flex-direction: column;
position: relative;
overflow: hidden;
}
.uni-swiper__dots-box {
position: absolute;
bottom: 10px;
left: 0;
right: 0;
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
flex: 1;
flex-direction: row;
justify-content: center;
align-items: center;
}
.uni-swiper__dots-item {
width: 8px;
border-radius: 100px;
margin-left: 6px;
background-color: rgba(0, 0, 0, 0.4);
/* transition: width 0.2s linear; 不要取消注释，不然会不能变色
*/
}
.uni-swiper__dots-item:first-child {
margin: 0;
}
.uni-swiper__dots-default {
border-radius: 100px;
}
.uni-swiper__dots-long {
border-radius: 50px;
}
.uni-swiper__dots-bar {
border-radius: 50px;
}
.uni-swiper__dots-nav {
bottom: 0px;
height: 40px;
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
flex: 1;
flex-direction: row;
justify-content: flex-start;
align-items: center;
background-color: rgba(0, 0, 0, 0.2);
}
.uni-swiper__dots-nav-item {
/* overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap; */
font-size: 14px;
color: #fff;
margin: 0 15px;
}
.uni-swiper__dots-indexes {
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
/* flex: 1;
*/
justify-content: center;
align-items: center;
}
.uni-swiper__dots-indexes-text {
color: #fff;
font-size: 12px;
}
</style>