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							- <template>
 
- 	<view class="u-subsection" :style="[subsectionStyle]">
 
- 		<view class="u-item u-line-1" :style="[itemStyle(index)]" @tap="click(index)" :class="[noBorderRight(index), 'u-item-' + index]"
 
- 		 v-for="(item, index) in listInfo" :key="index">
 
- 			<view :style="[textStyle(index)]" class="u-item-text u-line-1">{{ item.name }}</view>
 
- 		</view>
 
- 		<view class="u-item-bg" :style="[itemBarStyle]"></view>
 
- 	</view>
 
- </template>
 
- <script>
 
- 	/**
 
- 	 * subsection 分段器
 
- 	 * @description 该分段器一般用于用户从几个选项中选择某一个的场景
 
- 	 * @tutorial https://www.uviewui.com/components/subsection.html
 
- 	 * @property {Array} list 选项的数组,形式见上方"基本使用"
 
- 	 * @property {String Number} current 初始化时默认选中的选项索引值(默认0)
 
- 	 * @property {String} active-color 激活时的颜色,mode为subsection时固定为白色(默认#303133)
 
- 	 * @property {String} inactive-color 未激活时字体的颜色,mode为subsection时无效(默认#606266)
 
- 	 * @property {String} mode 模式选择,见官网"模式选择"说明(默认button)
 
- 	 * @property {String Number} font-size 字体大小,单位rpx(默认28)
 
- 	 * @property {String Number} height 组件高度,单位rpx(默认70)
 
- 	 * @property {Boolean} animation 是否开启动画效果,见上方说明(默认true)
 
- 	 * @property {Boolean} bold 激活选项的字体是否加粗(默认true)
 
- 	 * @property {String} bg-color 组件背景颜色,mode为button时有效(默认#eeeeef)
 
- 	 * @property {String} button-color 按钮背景颜色,mode为button时有效(默认#ffffff)
 
- 	 * @event {Function} change 分段器选项发生改变时触发
 
- 	 * @example <u-subsection active-color="#ff9900"></u-subsection>
 
- 	 */
 
- 	export default {
 
- 		name: "u-subsection",
 
- 		props: {
 
- 			// tab的数据
 
- 			list: {
 
- 				type: Array,
 
- 				default () {
 
- 					return [];
 
- 				}
 
- 			},
 
- 			// 当前活动的tab的index
 
- 			current: {
 
- 				type: [Number, String],
 
- 				default: 0
 
- 			},
 
- 			// 激活的颜色
 
- 			activeColor: {
 
- 				type: String,
 
- 				default: '#557EFD'
 
- 			},
 
- 			// 未激活的颜色
 
- 			inactiveColor: {
 
- 				type: String,
 
- 				default: '#606266'
 
- 			},
 
- 			// 模式选择,mode=button为按钮形式,mode=subsection时为分段模式
 
- 			mode: {
 
- 				type: String,
 
- 				default: 'button'
 
- 			},
 
- 			// 字体大小,单位rpx
 
- 			fontSize: {
 
- 				type: [Number, String],
 
- 				default: 28
 
- 			},
 
- 			// 是否开启动画效果
 
- 			animation: {
 
- 				type: Boolean,
 
- 				default: true
 
- 			},
 
- 			// 组件的高度,单位rpx
 
- 			height: {
 
- 				type: [Number, String],
 
- 				default: 70
 
- 			},
 
- 			// 激活tab的字体是否加粗
 
- 			bold: {
 
- 				type: Boolean,
 
- 				default: true
 
- 			},
 
- 			// mode=button时,组件背景颜色
 
- 			bgColor: {
 
- 				type: String,
 
- 				default: '#eeeeef'
 
- 			},
 
- 			// mode = button时,滑块背景颜色
 
- 			buttonColor: {
 
- 				type: String,
 
- 				default: '#ffffff'
 
- 			},
 
- 			// 在切换分段器的时候,是否让设备震一下
 
- 			vibrateShort: {
 
- 				type: Boolean,
 
- 				default: false
 
- 			}
 
- 		},
 
- 		data() {
 
- 			return {
 
- 				listInfo: [],
 
- 				itemBgStyle: {
 
- 					width: 0,
 
- 					left: 0,
 
- 					backgroundColor: '#ffffff',
 
- 					height: '100%',
 
- 					transition: ''
 
- 				},
 
- 				currentIndex: this.current,
 
- 				buttonPadding: 3, // mode = button 时,组件的内边距
 
- 				borderRadius: 5, // 圆角值
 
- 				firstTimeVibrateShort: true // 组件初始化时,会触发current变化,此时不应震动
 
- 			};
 
- 		},
 
- 		watch: {
 
- 			current: {
 
- 				immediate: true,
 
- 				handler(nVal) {
 
- 					this.currentIndex = nVal;
 
- 					this.changeSectionStatus(nVal);
 
- 				}
 
- 			}
 
- 		},
 
- 		created() {
 
- 			// 将list的数据,传入listInfo数组,因为不能修改props传递的list值
 
- 			// 可以接受直接数组形式,或者数组元素为对象的形式,如:['简介', '评价'],或者[{name: '简介'}, {name: '评价'}]
 
- 			this.listInfo = this.list.map((val, index) => {
 
- 				if (typeof val != 'object') {
 
- 					let obj = {
 
- 						width: 0,
 
- 						name: val
 
- 					};
 
- 					return obj;
 
- 				} else {
 
- 					val.width = 0;
 
- 					return val;
 
- 				}
 
- 			});
 
- 		},
 
- 		computed: {
 
- 			// 设置mode=subsection时,滑块特有的样式
 
- 			noBorderRight() {
 
- 				return index => {
 
- 					if (this.mode != 'subsection') return;
 
- 					let classs = '';
 
- 					// 不显示右边的边框
 
- 					if (index < this.list.length - 1) classs += ' u-none-border-right';
 
- 					// 显示整个组件的左右边圆角
 
- 					if (index == 0) classs += ' u-item-first';
 
- 					if (index == this.list.length - 1) classs += ' u-item-last';
 
- 					return classs;
 
- 				};
 
- 			},
 
- 			// 文字的样式
 
- 			textStyle() {
 
- 				return index => {
 
- 					let style = {};
 
- 					// 设置字体颜色
 
- 					if (this.mode == 'subsection') {
 
- 						if (index == this.currentIndex) {
 
- 							style.color = '#ffffff';
 
- 						} else {
 
- 							style.color = this.activeColor;
 
- 						}
 
- 					} else {
 
- 						if (index == this.currentIndex) {
 
- 							style.color = this.activeColor;
 
- 						} else {
 
- 							style.color = this.inactiveColor;
 
- 						}
 
- 					}
 
- 					// 字体加粗
 
- 					if (index == this.currentIndex && this.bold) style.fontWeight = 'bold';
 
- 					// 文字大小
 
- 					style.fontSize = this.fontSize + 'rpx';
 
- 					return style;
 
- 				};
 
- 			},
 
- 			// 每个分段器item的样式
 
- 			itemStyle() {
 
- 				return index => {
 
- 					let style = {};
 
- 					if (this.mode == 'subsection') {
 
- 						// 设置border的样式
 
- 						style.borderColor = this.activeColor;
 
- 						style.borderWidth = '1px';
 
- 						style.borderStyle = 'solid';
 
- 					}
 
- 					return style;
 
- 				};
 
- 			},
 
- 			// mode=button时,外层view的样式
 
- 			subsectionStyle() {
 
- 				let style = {};
 
- 				style.height = uni.upx2px(this.height) + 'px';
 
- 				if (this.mode == 'button') {
 
- 					style.backgroundColor = this.bgColor;
 
- 					style.padding = `${this.buttonPadding}px`;
 
- 					style.borderRadius = `${this.borderRadius}px`;
 
- 				}
 
- 				return style;
 
- 			},
 
- 			// 滑块的样式
 
- 			itemBarStyle() {
 
- 				let style = {};
 
- 				style.backgroundColor = this.activeColor;
 
- 				style.zIndex = 1;
 
- 				if (this.mode == 'button') {
 
- 					style.backgroundColor = this.buttonColor;
 
- 					style.borderRadius = `${this.borderRadius}px`;
 
- 					style.bottom = `${this.buttonPadding}px`;
 
- 					style.height = uni.upx2px(this.height) - this.buttonPadding * 2 + 'px';
 
- 					style.zIndex = 0;
 
- 				}
 
- 				return Object.assign(this.itemBgStyle, style);
 
- 			}
 
- 		},
 
- 		mounted() {
 
- 			setTimeout(() => {
 
- 				this.getTabsInfo();
 
- 			}, 10);
 
- 		},
 
- 		methods: {
 
- 			// 改变滑块的样式
 
- 			changeSectionStatus(nVal) {
 
- 				if (this.mode == 'subsection') {
 
- 					// 根据滑块在最左边和最右边时,显示左边和右边的圆角
 
- 					if (nVal == this.list.length - 1) {
 
- 						this.itemBgStyle.borderRadius = `0 ${this.buttonPadding}px ${this.buttonPadding}px 0`;
 
- 					}
 
- 					if (nVal == 0) {
 
- 						this.itemBgStyle.borderRadius = `${this.buttonPadding}px 0 0 ${this.buttonPadding}px`;
 
- 					}
 
- 					if (nVal > 0 && nVal < this.list.length - 1) {
 
- 						this.itemBgStyle.borderRadius = '0';
 
- 					}
 
- 				}
 
- 				// 更新滑块的位置
 
- 				setTimeout(() => {
 
- 					this.itemBgLeft();
 
- 				}, 10);
 
- 				if (this.vibrateShort && !this.firstTimeVibrateShort) {
 
- 					// 使手机产生短促震动,微信小程序有效,APP(HX 2.6.8)和H5无效
 
- 					// #ifndef H5
 
- 					uni.vibrateShort();
 
- 					// #endif
 
- 				}
 
- 				// 第一次过后,设置firstTimeVibrateShort为false,让其下一次可以震动(如果允许震动的话)
 
- 				this.firstTimeVibrateShort = false;
 
- 			},
 
- 			click(index) {
 
- 				// 不允许点击当前激活选项
 
- 				if (index == this.currentIndex) return;
 
- 				this.currentIndex = index;
 
- 				this.changeSectionStatus(index);
 
- 				this.$emit('change', Number(index));
 
- 			},
 
- 			// 获取各个tab的节点信息
 
- 			getTabsInfo() {
 
- 				let view = uni.createSelectorQuery().in(this);
 
- 				for (let i = 0; i < this.list.length; i++) {
 
- 					view.select('.u-item-' + i).boundingClientRect();
 
- 				}
 
- 				view.exec(res => {
 
- 					if (!res.length) {
 
- 						setTimeout(() => {
 
- 							this.getTabsInfo();
 
- 							return;
 
- 						}, 10);
 
- 					}
 
- 					// 将分段器每个item的宽度,放入listInfo数组
 
- 					res.map((val, index) => {
 
- 						this.listInfo[index].width = val.width;
 
- 					});
 
- 					// 初始化滑块的宽度
 
- 					if (this.mode == 'subsection') {
 
- 						this.itemBgStyle.width = this.listInfo[0].width + 'px';
 
- 					} else if (this.mode == 'button') {
 
- 						this.itemBgStyle.width = this.listInfo[0].width + 'px';
 
- 					}
 
- 					// 初始化滑块的位置
 
- 					this.itemBgLeft();
 
- 				});
 
- 			},
 
- 			itemBgLeft() {
 
- 				// 根据是否开启动画效果,
 
- 				if (this.animation) {
 
- 					this.itemBgStyle.transition = 'all 0.35s';
 
- 				} else {
 
- 					this.itemBgStyle.transition = 'all 0s';
 
- 				}
 
- 				let left = 0;
 
- 				// 计算当前活跃item到组件左边的距离
 
- 				this.listInfo.map((val, index) => {
 
- 					if (index < this.currentIndex) left += val.width;
 
- 				});
 
- 				// 根据mode不同模式,计算滑块需要移动的距离
 
- 				if (this.mode == 'subsection') {
 
- 					this.itemBgStyle.left = left + 'px';
 
- 				} else if (this.mode == 'button') {
 
- 					this.itemBgStyle.left = left + this.buttonPadding + 'px';
 
- 				}
 
- 			}
 
- 		}
 
- 	};
 
- </script>
 
- <style lang="scss" scoped>
 
- 	@import "../../libs/css/style.components.scss";
 
- 	
 
- 	.u-subsection {
 
- 		@include vue-flex;
 
- 		align-items: center;
 
- 		overflow: hidden;
 
- 		position: relative;
 
- 	}
 
- 	.u-item {
 
- 		flex: 1;
 
- 		text-align: center;
 
- 		font-size: 26rpx;
 
- 		height: 100%;
 
- 		@include vue-flex;
 
- 		align-items: center;
 
- 		justify-content: center;
 
- 		color: $u-main-color;
 
- 		padding: 0 6rpx;
 
- 	}
 
- 	.u-item-bg {
 
- 		// background-color: $u-type-primary;
 
- 		background-color: #FFFFFF;
 
- 		position: absolute;
 
- 		z-index: -1;
 
- 	}
 
- 	.u-none-border-right {
 
- 		border-right: none !important;
 
- 	}
 
- 	.u-item-first {
 
- 		border-top-left-radius: 8rpx;
 
- 		border-bottom-left-radius: 8rpx;
 
- 	}
 
- 	.u-item-last {
 
- 		border-top-right-radius: 8rpx;
 
- 		border-bottom-right-radius: 8rpx;
 
- 	}
 
- 	.u-item-text {
 
- 		transition: all 0.35s;
 
- 		color: $u-main-color;
 
- 		@include vue-flex;
 
- 		align-items: center;
 
- 		position: relative;
 
- 		z-index: 3;
 
- 	}
 
- </style>
 
 
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