Initial commit

uview-plus/components/u-index-anchor/indexAnchor.js

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+/*
+ * @Author       : LQ
+ * @Description  :
+ * @version      : 1.0
+ * @Date         : 2021-08-20 16:44:21
+ * @LastAuthor   : LQ
+ * @lastTime     : 2021-08-20 17:13:15
+ * @FilePath     : /u-view2.0/uview-ui/libs/config/props/indexAnchor.js
+ */
+export default {
+    // indexAnchor 组件
+    indexAnchor: {
+        text: '',
+        color: '#606266',
+        size: 14,
+        bgColor: '#dedede',
+        height: 32
+    }
+}

uview-plus/components/u-index-anchor/props.js

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+import { defineMixin } from '../../libs/vue'
+import defProps from '../../libs/config/props.js'
+export const props = defineMixin({
+    props: {
+        // 列表锚点文本内容
+        text: {
+            type: [String, Number],
+            default: () => defProps.indexAnchor.text
+        },
+        // 列表锚点文字颜色
+        color: {
+            type: String,
+            default: () => defProps.indexAnchor.color
+        },
+        // 列表锚点文字大小，单位默认px
+        size: {
+            type: [String, Number],
+            default: () => defProps.indexAnchor.size
+        },
+        // 列表锚点背景颜色
+        bgColor: {
+            type: String,
+            default: () => defProps.indexAnchor.bgColor
+        },
+        // 列表锚点高度，单位默认px
+        height: {
+            type: [String, Number],
+            default: () => defProps.indexAnchor.height
+        }
+    }
+})

uview-plus/components/u-index-anchor/u-index-anchor.vue

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+<template>
+	<!-- #ifdef APP-NVUE -->
+	<header>
+	<!-- #endif -->
+	<view
+	    class="u-index-anchor u-border-bottom"
+		:ref="`u-index-anchor-${text}`"
+	    :style="{
+			height: addUnit(height),
+			backgroundColor: bgColor
+		}"
+	>
+		<text
+		    class="u-index-anchor__text"
+		    :style="{
+				fontSize: addUnit(size),
+				color: color
+			}"
+		>{{ text }}</text>
+	</view>
+	<!-- #ifdef APP-NVUE -->
+	</header>
+	<!-- #endif -->
+</template>
+
+<script>
+	import { props } from './props';
+	import { mpMixin } from '../../libs/mixin/mpMixin';
+	import { mixin } from '../../libs/mixin/mixin';
+	import { addUnit, $parent, error } from '../../libs/function/index';
+	// #ifdef APP-NVUE
+	const dom = uni.requireNativePlugin('dom')
+	// #endif
+	/**
+	 * IndexAnchor 列表锚点
+	 * @description 
+	 * @tutorial https://uview-plus.jiangruyi.com/components/indexList.html
+	 * @property {String | Number}	text	列表锚点文本内容
+	 * @property {String}			color	列表锚点文字颜色 ( 默认 '#606266' )
+	 * @property {String | Number}	size	列表锚点文字大小，单位默认px ( 默认 14 )
+	 * @property {String}			bgColor	列表锚点背景颜色 ( 默认 '#dedede' )
+	 * @property {String | Number}	height	列表锚点高度，单位默认px ( 默认 32 )
+	 * @example <u-index-anchor :text="indexList[index]"></u-index-anchor>
+	 */
+	export default {
+		name: 'u-index-anchor',
+		mixins: [mpMixin, mixin, props],
+		data() {
+			return {
+			}
+		},
+		mounted() {
+			this.init()
+		},
+		methods: {
+			addUnit,
+			init() {
+				// 此处会活动父组件实例，并赋值给实例的parent属性
+				const indexList = $parent.call(this, 'u-index-list')
+				if (!indexList) { 
+					return error('u-index-anchor必须要搭配u-index-list组件使用')
+				}
+				// 将当前实例放入到u-index-list中
+				indexList.anchors.push(this)
+				const indexListItem = $parent.call(this, 'u-index-item')
+				// #ifndef APP-NVUE
+				// 只有在非nvue下，u-index-anchor才是嵌套在u-index-item中的
+				if (!indexListItem) {
+					return error('u-index-anchor必须要搭配u-index-item组件使用')
+				}
+				// 设置u-index-item的id为anchor的text标识符，因为非nvue下滚动列表需要依赖scroll-view滚动到元素的特性
+				indexListItem.id = this.text.charCodeAt(0)
+				// #endif
+			}
+		},
+	}
+</script>
+
+<style lang="scss" scoped>
+	@import "../../libs/css/components.scss";
+
+	.u-index-anchor {
+		position: sticky;
+		top: 0;
+		@include flex;
+		align-items: center;
+		padding-left: 15px;
+		z-index: 1;
+
+		&__text {
+			@include flex;
+			align-items: center;
+		}
+	}
+</style>