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	使用 uview 重构实际登陆
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		| @@ -0,0 +1,54 @@ | ||||
| export default { | ||||
|     props: { | ||||
|         // 返回顶部的形状,circle-圆形,square-方形 | ||||
|         mode: { | ||||
|             type: String, | ||||
|             default: uni.$u.props.backtop.mode | ||||
|         }, | ||||
|         // 自定义图标 | ||||
|         icon: { | ||||
|             type: String, | ||||
|             default: uni.$u.props.backtop.icon | ||||
|         }, | ||||
|         // 提示文字 | ||||
|         text: { | ||||
|             type: String, | ||||
|             default: uni.$u.props.backtop.text | ||||
|         }, | ||||
|         // 返回顶部滚动时间 | ||||
|         duration: { | ||||
|             type: [String, Number], | ||||
|             default: uni.$u.props.backtop.duration | ||||
|         }, | ||||
|         // 滚动距离 | ||||
|         scrollTop: { | ||||
|             type: [String, Number], | ||||
|             default: uni.$u.props.backtop.scrollTop | ||||
|         }, | ||||
|         // 距离顶部多少距离显示,单位px | ||||
|         top: { | ||||
|             type: [String, Number], | ||||
|             default: uni.$u.props.backtop.top | ||||
|         }, | ||||
|         // 返回顶部按钮到底部的距离,单位px | ||||
|         bottom: { | ||||
|             type: [String, Number], | ||||
|             default: uni.$u.props.backtop.bottom | ||||
|         }, | ||||
|         // 返回顶部按钮到右边的距离,单位px | ||||
|         right: { | ||||
|             type: [String, Number], | ||||
|             default: uni.$u.props.backtop.right | ||||
|         }, | ||||
|         // 层级 | ||||
|         zIndex: { | ||||
|             type: [String, Number], | ||||
|             default: uni.$u.props.backtop.zIndex | ||||
|         }, | ||||
|         // 图标的样式,对象形式 | ||||
|         iconStyle: { | ||||
|             type: Object, | ||||
|             default: uni.$u.props.backtop.iconStyle | ||||
|         } | ||||
|     } | ||||
| } | ||||
| @@ -0,0 +1,137 @@ | ||||
| <template> | ||||
| 	<u-transition | ||||
| 	    mode="fade" | ||||
| 	    :customStyle="backTopStyle" | ||||
| 	    :show="show" | ||||
| 	> | ||||
| 		<view | ||||
| 		    class="u-back-top" | ||||
| 			:style="contentStyle" | ||||
| 		    v-if="!$slots.default && !$slots.$default" | ||||
| 			@click="backToTop" | ||||
| 		> | ||||
| 			<u-icon | ||||
| 			    :name="icon" | ||||
| 			    :custom-style="iconStyle" | ||||
| 			></u-icon> | ||||
| 			<text | ||||
| 			    v-if="text" | ||||
| 			    class="u-back-top__text" | ||||
| 			>{{text}}</text> | ||||
| 		</view> | ||||
| 		<slot v-else /> | ||||
| 	</u-transition> | ||||
| </template> | ||||
|  | ||||
| <script> | ||||
| 	import props from './props.js'; | ||||
| 	// #ifdef APP-NVUE | ||||
| 	const dom = weex.requireModule('dom') | ||||
| 	// #endif | ||||
| 	/** | ||||
| 	 * backTop 返回顶部 | ||||
| 	 * @description 本组件一个用于长页面,滑动一定距离后,出现返回顶部按钮,方便快速返回顶部的场景。 | ||||
| 	 * @tutorial https://uviewui.com/components/backTop.html | ||||
| 	 *  | ||||
| 	 * @property {String}			mode  		返回顶部的形状,circle-圆形,square-方形 (默认 'circle' ) | ||||
| 	 * @property {String} 			icon 		自定义图标 (默认 'arrow-upward' ) 见官方文档示例 | ||||
| 	 * @property {String} 			text 		提示文字  | ||||
| 	 * @property {String | Number}  duration	返回顶部滚动时间 (默认 100) | ||||
| 	 * @property {String | Number}  scrollTop	滚动距离 (默认 0 ) | ||||
| 	 * @property {String | Number}  top  		距离顶部多少距离显示,单位px (默认 400 ) | ||||
| 	 * @property {String | Number}  bottom  	返回顶部按钮到底部的距离,单位px (默认 100 ) | ||||
| 	 * @property {String | Number}  right  		返回顶部按钮到右边的距离,单位px (默认 20 ) | ||||
| 	 * @property {String | Number}  zIndex 		层级   (默认 9 ) | ||||
| 	 * @property {Object<Object>}  	iconStyle 	图标的样式,对象形式   (默认 {color: '#909399',fontSize: '19px'}) | ||||
| 	 * @property {Object}			customStyle	定义需要用到的外部样式 | ||||
| 	 *  | ||||
| 	 * @example <u-back-top :scrollTop="scrollTop"></u-back-top> | ||||
| 	 */ | ||||
| 	export default { | ||||
| 		name: 'u-back-top', | ||||
| 		mixins: [uni.$u.mpMixin, uni.$u.mixin,props], | ||||
| 		computed: { | ||||
| 			backTopStyle() { | ||||
| 				// 动画组件样式 | ||||
| 				const style = { | ||||
| 					bottom: uni.$u.addUnit(this.bottom), | ||||
| 					right: uni.$u.addUnit(this.right), | ||||
| 					width: '40px', | ||||
| 					height: '40px', | ||||
| 					position: 'fixed', | ||||
| 					zIndex: 10, | ||||
| 				} | ||||
| 				return style | ||||
| 			}, | ||||
| 			show() { | ||||
| 				let top | ||||
| 				// 如果是rpx,转为px | ||||
| 				if (/rpx$/.test(this.top)) { | ||||
| 					top = uni.rpx2px(parseInt(this.top)) | ||||
| 				} else { | ||||
| 					// 如果px,通过parseInt获取其数值部分 | ||||
| 					top = parseInt(this.top) | ||||
| 				} | ||||
| 				return this.scrollTop > top | ||||
| 			}, | ||||
| 			contentStyle() { | ||||
| 				const style = {} | ||||
| 				let radius = 0 | ||||
| 				// 是否圆形 | ||||
| 				if(this.mode === 'circle') { | ||||
| 					radius = '100px' | ||||
| 				} else { | ||||
| 					radius = '4px' | ||||
| 				} | ||||
| 				// 为了兼容安卓nvue,只能这么分开写 | ||||
| 				style.borderTopLeftRadius = radius | ||||
| 				style.borderTopRightRadius = radius | ||||
| 				style.borderBottomLeftRadius = radius | ||||
| 				style.borderBottomRightRadius = radius | ||||
| 				return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle)) | ||||
| 			} | ||||
| 		}, | ||||
| 		methods: { | ||||
| 			backToTop() { | ||||
| 				// #ifdef APP-NVUE | ||||
| 				if (!this.$parent.$refs['u-back-top']) { | ||||
| 					uni.$u.error(`nvue页面需要给页面最外层元素设置"ref='u-back-top'`) | ||||
| 				} | ||||
| 				dom.scrollToElement(this.$parent.$refs['u-back-top'], { | ||||
| 					offset: 0 | ||||
| 				}) | ||||
| 				// #endif | ||||
| 				 | ||||
| 				// #ifndef APP-NVUE | ||||
| 				uni.pageScrollTo({ | ||||
| 					scrollTop: 0, | ||||
| 					duration: this.duration | ||||
| 				}); | ||||
| 				// #endif | ||||
| 				this.$emit('click') | ||||
| 			} | ||||
| 		} | ||||
| 	} | ||||
| </script> | ||||
|  | ||||
| <style lang="scss" scoped> | ||||
| 	@import '../../libs/css/components.scss'; | ||||
|      $u-back-top-flex:1 !default; | ||||
|      $u-back-top-height:100% !default; | ||||
|      $u-back-top-background-color:#E1E1E1 !default; | ||||
|      $u-back-top-tips-font-size:12px !default; | ||||
| 	.u-back-top { | ||||
| 		@include flex; | ||||
| 		flex-direction: column; | ||||
| 		align-items: center; | ||||
| 		flex:$u-back-top-flex; | ||||
| 		height: $u-back-top-height; | ||||
| 		justify-content: center; | ||||
| 		background-color: $u-back-top-background-color; | ||||
|  | ||||
| 		&__tips { | ||||
| 			font-size:$u-back-top-tips-font-size; | ||||
| 			transform: scale(0.8); | ||||
| 		} | ||||
| 	} | ||||
| </style> | ||||
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