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							- <template>
 
- 	<view class="">
 
- 		<movable-area class="u-swipe-action" :style="{ backgroundColor: bgColor }">
 
- 			<movable-view
 
- 				class="u-swipe-view"
 
- 				@change="change"
 
- 				@touchend="touchend"
 
- 				@touchstart="touchstart"
 
- 				direction="horizontal"
 
- 				:disabled="disabled"
 
- 				:x="moveX"
 
- 				:style="{
 
- 					width: movableViewWidth ? movableViewWidth : '100%'
 
- 				}"
 
- 			>
 
- 				<view
 
- 					class="u-swipe-content"
 
- 					@tap.stop="contentClick"
 
- 				>
 
- 					<slot></slot>
 
- 				</view>
 
- 				<view class="u-swipe-del" v-if="showBtn" @tap.stop="btnClick(index)" :style="[btnStyle(item.style)]" v-for="(item, index) in options" :key="index">
 
- 					<view class="u-btn-text">{{ item.text }}</view>
 
- 				</view>
 
- 			</movable-view>
 
- 		</movable-area>
 
- 	</view>
 
- </template>
 
- <script>
 
- /**
 
-  * swipeAction 左滑单元格
 
-  * @description 该组件一般用于左滑唤出操作菜单的场景,用的最多的是左滑删除操作。
 
-  * @tutorial https://www.uviewui.com/components/swipeAction.html
 
-  * @property {String} bg-color 整个组件背景颜色(默认#ffffff)
 
-  * @property {Array} options 数组形式,可以配置背景颜色和文字
 
-  * @property {String Number} index 标识符,点击时候用于区分点击了哪一个,用v-for循环时的index即可
 
-  * @property {String Number} btn-width 按钮宽度,单位rpx(默认180)
 
-  * @property {Boolean} disabled 是否禁止某个swipeAction滑动(默认false)
 
-  * @property {Boolean} show 打开或者关闭某个组件(默认false)
 
-  * @event {Function} click 点击组件时触发
 
-  * @event {Function} close 组件触发关闭状态时
 
-  * @event {Function} content-click 点击内容时触发
 
-  * @event {Function} open 组件触发打开状态时
 
-  * @example <u-swipe-action btn-text="收藏">...</u-swipe-action>
 
-  */
 
- export default {
 
- 	name: 'u-swipe-action',
 
- 	props: {
 
- 		// index值,用于得知点击删除的是哪个按钮
 
- 		index: {
 
- 			type: [Number, String],
 
- 			default: ''
 
- 		},
 
- 		// 滑动按钮的宽度,单位为rpx
 
- 		btnWidth: {
 
- 			type: [String, Number],
 
- 			default: 180
 
- 		},
 
- 		// 是否禁止某个action滑动
 
- 		disabled: {
 
- 			type: Boolean,
 
- 			default: false
 
- 		},
 
- 		// 打开或者关闭组件
 
- 		show: {
 
- 			type: Boolean,
 
- 			default: false
 
- 		},
 
- 		// 组件背景颜色
 
- 		bgColor: {
 
- 			type: String,
 
- 			default: '#ffffff'
 
- 		},
 
- 		// 是否使手机发生短促震动,目前只在iOS的微信小程序有效(2020-05-06)
 
- 		vibrateShort: {
 
- 			type: Boolean,
 
- 			default: false
 
- 		},
 
- 		// 按钮操作参数
 
- 		options: {
 
- 			type: Array,
 
- 			default() {
 
- 				return [];
 
- 			}
 
- 		}
 
- 	},
 
- 	watch: {
 
- 		show: {
 
- 			immediate: true,
 
- 			handler(nVal, oVal) {
 
- 				if (nVal) {
 
- 					this.open();
 
- 				} else {
 
- 					this.close();
 
- 				}
 
- 			}
 
- 		}
 
- 	},
 
- 	data() {
 
- 		return {
 
- 			moveX: 0, // movable-view元素在x轴上需要移动的目标移动距离,用于展开或收起滑动的按钮
 
- 			scrollX: 0, // movable-view移动过程中产生的change事件中的x轴移动值
 
- 			status: false, // 滑动的状态,表示当前是展开还是关闭按钮的状态
 
- 			movableAreaWidth: 0, // 滑动区域
 
- 			elId: this.$u.guid(), // id,用于通知另外组件关闭时的识别
 
- 			showBtn: false, // 刚开始渲染视图时不显示右边的按钮,避免视图闪动
 
- 		};
 
- 	},
 
- 	computed: {
 
- 		movableViewWidth() {
 
- 			return this.movableAreaWidth + this.allBtnWidth + 'px';
 
- 		},
 
- 		innerBtnWidth() {
 
- 			return uni.upx2px(this.btnWidth);
 
- 		},
 
- 		allBtnWidth() {
 
- 			return uni.upx2px(this.btnWidth) * this.options.length;
 
- 		},
 
- 		btnStyle() {
 
- 			return style => {
 
- 				let css = {};
 
- 				style.width = this.btnWidth + 'rpx';
 
- 				return style;
 
- 			};
 
- 		}
 
- 	},
 
- 	mounted() {
 
- 		this.getActionRect();
 
- 	},
 
- 	methods: {
 
- 		// 点击按钮
 
- 		btnClick(index) {
 
- 			this.status = false;
 
- 			// this.index为点击的几个组件,index为点击某个组件的第几个按钮(options数组的索引)
 
- 			this.$emit('click', this.index, index);
 
- 		},
 
- 		// movable-view元素移动事件
 
- 		change(e) {
 
- 			this.scrollX = e.detail.x;
 
- 		},
 
- 		// 关闭按钮状态
 
- 		close() {
 
- 			this.moveX = 0;
 
- 			this.status = false;
 
- 		},
 
- 		// 打开按钮的状态
 
- 		open() {
 
- 			if (this.disabled) return;
 
- 			this.moveX = -this.allBtnWidth;
 
- 			this.status = true;
 
- 		},
 
- 		// 用户手指离开movable-view元素,停止触摸
 
- 		touchend() {
 
- 			this.moveX = this.scrollX;
 
- 			// 停止触摸时候,判断当前是展开还是关闭状态
 
- 			// 关闭状态
 
- 			// 这一步很重要,需要先给this.moveX一个变化的随机值,否则因为前后设置的为同一个值
 
- 			// props单向数据流的原因,导致movable-view元素不会发生变化,切记,详见文档:
 
- 			// https://uniapp.dcloud.io/use?id=%e5%b8%b8%e8%a7%81%e9%97%ae%e9%a2%98
 
- 			this.$nextTick(function() {
 
- 				if (this.status == false) {
 
- 					// 关闭状态左滑,产生的x轴位移为负值,也就是说滑动的距离大于按钮的四分之一宽度,自动展开按钮
 
- 					if (this.scrollX <= -this.allBtnWidth / 4) {
 
- 						this.moveX = -this.allBtnWidth; // 按钮宽度的负值,即为展开状态movable-view元素左滑的距离
 
- 						this.status = true; // 标志当前为展开状态
 
- 						this.emitOpenEvent();
 
- 						// 产生震动效果
 
- 						if (this.vibrateShort) uni.vibrateShort();
 
- 					} else {
 
- 						this.moveX = 0; // 如果距离没有按钮宽度的四分之一,自动收起
 
- 						this.status = false;
 
- 						this.emitCloseEvent();
 
- 					}
 
- 				} else {
 
- 					// 如果在打开的状态下,右滑动的距离X轴偏移超过按钮的四分之一(负值反过来的四分之三),自动收起按钮
 
- 					if (this.scrollX > (-this.allBtnWidth * 3) / 4) {
 
- 						this.moveX = 0;
 
- 						this.$nextTick(() => {
 
- 							this.moveX = 101;
 
- 						});
 
- 						this.status = false;
 
- 						this.emitCloseEvent();
 
- 					} else {
 
- 						this.moveX = -this.allBtnWidth;
 
- 						this.status = true;
 
- 						this.emitOpenEvent();
 
- 					}
 
- 				}
 
- 			});
 
- 		},
 
- 		emitOpenEvent() {
 
- 			this.$emit('open', this.index);
 
- 		},
 
- 		emitCloseEvent() {
 
- 			this.$emit('close', this.index);
 
- 		},
 
- 		// 开始触摸
 
- 		touchstart() {},
 
- 		getActionRect() {
 
- 			this.$uGetRect('.u-swipe-action').then(res => {
 
- 				this.movableAreaWidth = res.width;
 
- 				// 等视图更新完后,再显示右边的可滑动按钮,防止这些按钮会"闪一下"
 
- 				this.$nextTick(() => {
 
- 					this.showBtn = true;
 
- 				})
 
- 			});
 
- 		},
 
- 		// 点击内容触发事件
 
- 		contentClick() {
 
- 			// 点击内容时,如果当前为打开状态,收起组件
 
- 			if (this.status == true) {
 
- 				this.status = 'close';
 
- 				this.moveX = 0;
 
- 			}
 
- 			this.$emit('content-click', this.index);
 
- 		}
 
- 	}
 
- };
 
- </script>
 
- <style scoped lang="scss">
 
- @import "../../libs/css/style.components.scss";
 
- 	
 
- .u-swipe-action {
 
- 	width: auto;
 
- 	height: initial;
 
- 	position: relative;
 
- 	overflow: hidden;
 
- }
 
- .u-swipe-view {
 
- 	@include vue-flex;
 
- 	height: initial;
 
- 	position: relative;
 
- 	/* 这一句很关键,覆盖默认的绝对定位 */
 
- }
 
- .u-swipe-content {
 
- 	flex: 1;
 
- }
 
- .u-swipe-del {
 
- 	position: relative;
 
- 	font-size: 30rpx;
 
- 	color: #ffffff;
 
- }
 
- .u-btn-text {
 
- 	position: absolute;
 
- 	top: 50%;
 
- 	left: 50%;
 
- 	transform: translate(-50%, -50%);
 
- }
 
- </style>
 
 
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