项目初始化

components/thorui/tui-sticky/tui-sticky.vue

@@ -0,0 +1,166 @@
+<template>
+	<view class="tui-sticky-class" :id="tui_Id">
+		<!--sticky 容器-->
+		<view :style="{height: stickyHeight,background:backgroundColor}" v-if="isFixed"></view>
+		<view :class="{'tui-sticky-fixed':isFixed}" :style="{top:isFixed?stickyTop+'px':'auto'}">
+			<slot name="header"></slot>
+		</view>
+		<!--sticky 容器-->
+		<!--内容-->
+		<slot name="content"></slot>
+	</view>
+</template>
+
+<script>
+	export default {
+		name: "tuiSticky",
+		emits: ['sticky', 'change'],
+		props: {
+			scrollTop: {
+				type: Number
+			},
+			//吸顶时与顶部的距离，单位px
+			stickyTop: {
+				type: [Number, String]
+					// #ifndef H5
+					,
+				default: 0
+					// #endif
+					// #ifdef H5
+					,
+				default: 44
+				// #endif
+			},
+			//是否指定容器，即内容放置插槽content内
+			container: {
+				type: Boolean,
+				default: false
+			},
+			//是否是原生自带header
+			isNativeHeader: {
+				type: Boolean,
+				default: true
+			},
+			//吸顶容器 高度 rpx
+			stickyHeight: {
+				type: String,
+				default: "auto"
+			},
+			//占位容器背景颜色
+			backgroundColor: {
+				type: String,
+				default: "transparent"
+			},
+			//是否重新计算[有异步加载时使用,设置大于0的数]
+			recalc: {
+				type: Number,
+				default: 0
+			},
+			//列表中的索引值
+			index: {
+				type: [Number, String],
+				default: 0
+			}
+		},
+		watch: {
+			scrollTop(newValue, oldValue) {
+				if (this.initialize != 0) {
+					this.updateScrollChange(() => {
+						this.updateStickyChange();
+						this.initialize = 0
+					});
+				} else {
+					this.updateStickyChange();
+				}
+			},
+			recalc(newValue, oldValue) {
+				this.updateScrollChange(() => {
+					this.updateStickyChange();
+					this.initialize = 0;
+				});
+			}
+		},
+		created() {
+			this.initialize = this.recalc
+		},
+		mounted() {
+			this.$nextTick(() => {
+				setTimeout(() => {
+					this.updateScrollChange();
+				}, 50)
+			})
+		},
+		data() {
+			const Id = `tui_${Math.ceil(Math.random() * 10e5).toString(36)}`
+			return {
+				timer: null,
+				top: 0,
+				height: 0,
+				isFixed: false,
+				initialize: 0, //重新初始化
+				tui_Id: Id
+			};
+		},
+		methods: {
+			updateStickyChange() {
+				const top = this.top;
+				const height = this.height;
+				const scrollTop = this.scrollTop
+				let stickyTop = this.stickyTop
+				// #ifdef H5
+				if (this.isNativeHeader) {
+					stickyTop = stickyTop - 44
+					stickyTop = stickyTop < 0 ? 0 : stickyTop
+				}
+				// #endif
+				if (this.container) {
+					this.isFixed = (scrollTop + stickyTop >= top && scrollTop + stickyTop < top + height) ? true : false
+				} else {
+					this.isFixed = scrollTop + stickyTop >= top ? true : false
+				}
+				//是否吸顶
+				this.$emit("sticky", {
+					isFixed: this.isFixed,
+					index: this.index
+				})
+			},
+			updateScrollChange(callback) {
+				if (this.timer) {
+					clearTimeout(this.timer)
+					this.timer = null
+				}
+				this.timer = setTimeout(() => {
+					const selectId = `#${this.tui_Id}`;
+					uni.createSelectorQuery()
+						// #ifndef MP-ALIPAY
+						.in(this)
+						// #endif
+						.select(selectId)
+						.fields({
+							size: true,
+							rect: true
+						}, res => {
+							if (res) {
+								this.top = res.top + (this.scrollTop || 0);
+								this.height = res.height;
+								callback && callback();
+								this.$emit("change", {
+									index: Number(this.index),
+									top: this.top
+								})
+							}
+						}).exec()
+				}, 0)
+			}
+		}
+	}
+</script>
+
+<style scoped>
+	.tui-sticky-fixed {
+		width: 100%;
+		position: fixed;
+		left: 0;
+		z-index: 888;
+	}
+</style>