first commit

components/drag-button/drag-button.vue

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+<template>
+	<view>
+		<view id="_drag_button" class="drag" :style="'left: ' + left + 'px; top:' + top + 'px;'"
+			@touchstart="touchstart" @touchmove.stop.prevent="touchmove" @touchend="touchend"
+			:class="{transition: isDock && !isMove }">
+			<view class="drag-box" @click.stop.prevent="click(videoInfo[0])">
+				<image :src="videoInfo[0].titleImg" mode="aspectFill"></image>
+				<view class="drag-close flex align-center justify-center">
+					<image @click.stop.prevent="clickClose" src="../../static/images/index/closeVideo.png" mode="">
+					</image>
+				</view>
+				<view class="drag-playing">
+					<image src="../../static/images/index/playVideoIcon.png" mode=""></image>
+				</view>
+			</view>
+
+		</view>
+	</view>
+</template>
+
+<script>
+	export default {
+		name: 'drag-button',
+		props: {
+			isDock: {
+				type: Boolean,
+				default: false
+			},
+			existTabBar: {
+				type: Boolean,
+				default: false
+			},
+			videoInfo: {
+				type: Array,
+				default: []
+			}
+		},
+		data() {
+			return {
+				top: 0,
+				left: 0,
+				width: 0,
+				height: 0,
+				offsetWidth: 0,
+				offsetHeight: 0,
+				windowWidth: 0,
+				windowHeight: 0,
+				isMove: true,
+				edge: 16,
+				text: '按钮'
+			}
+		},
+		mounted() {
+			const sys = uni.getSystemInfoSync();
+
+			this.windowWidth = sys.windowWidth;
+			this.windowHeight = sys.windowHeight;
+
+			// #ifdef APP-PLUS
+			this.existTabBar && (this.windowHeight -= 50);
+			// #endif
+			if (sys.windowTop) {
+				this.windowHeight += sys.windowTop;
+			}
+			console.log(sys)
+
+			const query = uni.createSelectorQuery().in(this);
+			query.select('#_drag_button').boundingClientRect(data => {
+				this.width = data.width;
+				this.height = data.height;
+				this.offsetWidth = data.width / 2;
+				this.offsetHeight = data.height / 2;
+				// this.left = this.windowWidth - this.width - this.edge;
+				this.left = this.edge;
+				this.top = this.windowHeight - (2 * this.height) - this.edge;
+			}).exec();
+		},
+		methods: {
+			//关闭
+			clickClose() {
+				this.$emit('clickClose')
+			},
+			//点击封面
+			click(item) {
+				this.$emit('btnClick', item);
+			},
+			touchstart(e) {
+				this.$emit('btnTouchstart');
+			},
+			touchmove(e) {
+				// 单指触摸
+				if (e.touches.length !== 1) {
+					return false;
+				}
+
+				this.isMove = true;
+
+				this.left = e.touches[0].clientX - this.offsetWidth;
+
+				let clientY = e.touches[0].clientY - this.offsetHeight;
+				// #ifdef H5
+				// clientY += this.height;
+				// #endif
+				let edgeBottom = this.windowHeight - this.height - this.edge;
+
+				// 上下触及边界
+				if (clientY < this.edge) {
+					this.top = this.edge;
+				} else if (clientY > edgeBottom) {
+					this.top = edgeBottom;
+				} else {
+					this.top = clientY
+				}
+
+			},
+			touchend(e) {
+				if (this.isDock) {
+					let edgeRigth = this.windowWidth - this.width - this.edge;
+
+					if (this.left < this.windowWidth / 2 - this.offsetWidth) {
+						this.left = this.edge;
+					} else {
+						this.left = edgeRigth;
+					}
+
+				}
+
+				this.isMove = false;
+
+				this.$emit('btnTouchend');
+			},
+		}
+	}
+</script>
+
+<style lang="scss">
+	.drag {
+		width: 150rpx;
+		position: fixed;
+		z-index: 888;
+
+		&.transition {
+			transition: left .3s ease, top .3s ease;
+		}
+
+		.drag-box {
+			width: 100%;
+			position: relative;
+
+			image {
+				width: 100%;
+				height: 200rpx;
+				border-radius: 8rpx;
+			}
+		}
+
+
+		.drag-close {
+			// width: 100%;
+			// margin-top: 10rpx;
+			position: absolute;
+			top: -10rpx;
+			right: -10rpx;
+
+			image {
+				width: 30rpx;
+				height: 30rpx;
+				border-radius: 50%;
+			}
+		}
+
+		.drag-playing {
+			position: absolute;
+			top: 50%;
+			left: 50%;
+			transform: translate(-50%, -50%);
+
+			image {
+				width: 30rpx;
+				height: 34rpx;
+			}
+		}
+	}
+</style>