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205 lines
5.6 KiB
205 lines
5.6 KiB
3 months ago
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<template>
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<view class="u-load-more-wrap" :style="{
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backgroundColor: bgColor,
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marginBottom: marginBottom + 'rpx',
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marginTop: marginTop + 'rpx',
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height: $u.addUnit(height)
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}">
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<u-line color="#d4d4d4" length="50" class="u-line"></u-line>
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<!-- 加载中和没有更多的状态才显示两边的横线 -->
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<view :class="status == 'loadmore' || status == 'nomore' ? 'u-more' : ''" class="u-load-more-inner">
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<view class="u-loadmore-icon-wrap">
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<u-loading class="u-loadmore-icon" :color="iconColor" :mode="iconType == 'circle' ? 'circle' : 'flower'" :show="status == 'loading' && icon"></u-loading>
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</view>
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<!-- 如果没有更多的状态下,显示内容为dot(粗点),加载特定样式 -->
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<view class="u-line-1" :style="[loadTextStyle]" :class="[(status == 'nomore' && isDot == true) ? 'u-dot-text' : 'u-more-text']" @tap="loadMore">
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{{ showText }}
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</view>
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</view>
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<u-line color="#d4d4d4" length="50" class="u-line"></u-line>
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</view>
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</template>
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<script>
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/**
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* loadmore 加载更多
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* @description 此组件一般用于标识页面底部加载数据时的状态。
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* @tutorial https://www.uviewui.com/components/loadMore.html
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* @property {String} status 组件状态(默认loadmore)
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* @property {String} bg-color 组件背景颜色,在页面是非白色时会用到(默认#ffffff)
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* @property {Boolean} icon 加载中时是否显示图标(默认true)
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* @property {String} icon-type 加载中时的图标类型(默认circle)
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* @property {String} icon-color icon-type为circle时有效,加载中的动画图标的颜色(默认#b7b7b7)
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* @property {Boolean} is-dot status为nomore时,内容显示为一个"●"(默认false)
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* @property {String} color 字体颜色(默认#606266)
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* @property {String Number} margin-top 到上一个相邻元素的距离
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* @property {String Number} margin-bottom 到下一个相邻元素的距离
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* @property {Object} load-text 自定义显示的文字,见上方说明示例
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* @event {Function} loadmore status为loadmore时,点击组件会发出此事件
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* @example <u-loadmore :status="status" icon-type="iconType" load-text="loadText" />
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*/
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export default {
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name: "u-loadmore",
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emits: ["loadmore"],
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props: {
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// 组件背景色
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bgColor: {
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type: String,
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default: 'transparent'
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},
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// 是否显示加载中的图标
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icon: {
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type: Boolean,
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default: true
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},
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// 字体大小
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fontSize: {
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type: String,
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default: '28'
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},
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// 字体颜色
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color: {
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type: String,
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default: '#606266'
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},
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// 组件状态,loadmore-加载前的状态,loading-加载中的状态,nomore-没有更多的状态
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status: {
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type: String,
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default: 'loadmore'
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},
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// 加载中状态的图标,flower-花朵状图标,circle-圆圈状图标
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iconType: {
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type: String,
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default: 'circle'
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},
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// 显示的文字
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loadText: {
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type: Object,
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default () {
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return {
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loadmore: '加载更多',
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loading: '正在加载...',
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nomore: '没有更多了'
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}
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}
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},
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// 在“没有更多”状态下,是否显示粗点
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isDot: {
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type: Boolean,
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default: false
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},
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// 加载中显示圆圈动画时,动画的颜色
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iconColor: {
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type: String,
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default: '#b7b7b7'
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},
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// 上边距
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marginTop: {
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type: [String, Number],
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default: 0
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},
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// 下边距
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marginBottom: {
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type: [String, Number],
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default: 0
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},
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// 高度,单位rpx
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height: {
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type: [String, Number],
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default: 'auto'
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}
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},
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data() {
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return {
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// 粗点
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dotText: "●"
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}
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},
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computed: {
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// 加载的文字显示的样式
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loadTextStyle() {
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return {
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color: this.color,
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fontSize: this.fontSize + 'rpx',
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position: 'relative',
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zIndex: 1,
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backgroundColor: this.bgColor,
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// 如果是加载中状态,动画和文字需要距离近一点
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}
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},
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// 加载中圆圈动画的样式
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cricleStyle() {
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return {
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borderColor: `#e5e5e5 #e5e5e5 #e5e5e5 ${this.circleColor}`
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}
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},
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// 加载中花朵动画形式
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// 动画由base64图片生成,暂不支持修改
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flowerStyle() {
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return {
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}
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},
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// 显示的提示文字
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showText() {
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let text = '';
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if(this.status == 'loadmore') text = this.loadText.loadmore;
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else if(this.status == 'loading') text = this.loadText.loading;
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else if(this.status == 'nomore' && this.isDot) text = this.dotText;
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else text = this.loadText.nomore;
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return text;
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}
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},
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methods: {
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loadMore() {
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// 只有在“加载更多”的状态下才发送点击事件,内容不满一屏时无法触发底部上拉事件,所以需要点击来触发
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if(this.status == 'loadmore') this.$emit('loadmore');
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}
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}
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}
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</script>
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<style scoped lang="scss">
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@import "../../libs/css/style.components.scss";
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/* #ifdef MP */
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// 在mp.scss中,赋予了u-line为flex: 1,这里需要一个明确的长度,所以重置掉它
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// 在组件内部,把组件名(u-line)当做选择器,在微信开发工具会提示不合法,但不影响使用
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.u-line {
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flex: none;
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}
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/* #endif */
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.u-load-more-wrap {
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@include vue-flex;
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justify-content: center;
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align-items: center;
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}
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.u-load-more-inner {
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@include vue-flex;
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justify-content: center;
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align-items: center;
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padding: 0 12rpx;
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}
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.u-more {
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position: relative;
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@include vue-flex;
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justify-content: center;
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}
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.u-dot-text {
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font-size: 28rpx;
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}
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.u-loadmore-icon-wrap {
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margin-right: 8rpx;
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}
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.u-loadmore-icon {
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@include vue-flex;
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align-items: center;
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justify-content: center;
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}
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</style>
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