探探的堆疊滑動組件起到了關鍵的作用,下面就來看看如何用vue寫一個探探的堆疊組件,感興趣的朋友一起看看吧
效果圖如下所示:
#前言
##嗨,說起探探想必各位程序汪都不陌生(畢竟妹子很多),能在上面絲滑的翻牌子,探探的的堆疊滑動組件起到了關鍵的作用,下面就來看看如何用vue寫一個探探的堆疊組件一.功能分析
#簡單使用下探探會發現,堆疊滑動的功能很簡單,用一張圖概括就是:簡單歸納下方包含的基本功能點:
#二.具體實作
有了歸納好的功能點,我們實作元件的想法會更清晰
#1. 堆疊效果
堆疊圖片效果在網路上有大量的實例,實現的方法大同小異,主要透過在父層設定perspective 及perspective-origin ,來實現子層的透視,子層設定好translate3d Z軸數值即可模擬出堆疊效果,具體程式碼如下// 图片堆叠dom <!--opacity: 0 隐藏我们不想看到的stack-item层级--> <!--z-index: -1 调整stack-item层级"--> <ul class="stack"> <li class="stack-item" style="transform: translate3d(0px, 0px, 0px);opacity: 1;z-index: 10;"><img src="1.png" alt="01"></li> <li class="stack-item" style="transform: translate3d(0px, 0px, -60px);opacity: 1;z-index: 1"><img src="2.png" alt="02"></li> <li class="stack-item" style="transform: translate3d(0px, 0px, -120px);opacity: 1;z-index: 1"><img src="3.png" alt="03"></li> <li class="stack-item" style="transform: translate3d(0px, 0px, -180px);opacity: 0;z-index: -1"><img src="4.png" alt="04"></li> <li class="stack-item" style="transform: translate3d(0px, 0px, -180px);opacity: 0;z-index: -1"><img src="5.png" alt="05"></li> </ul> <style> .stack { width: 100%; height: 100%; position: relative; perspective: 1000px; //子元素视距 perspective-origin: 50% 150%; //子元素透视位置 -webkit-perspective: 1000px; -webkit-perspective-origin: 50% 150%; margin: 0; padding: 0; } .stack-item{ background: #fff; height: 100%; width: 100%; border-radius: 4px; text-align: center; overflow: hidden; } .stack-item img { width: 100%; display: block; pointer-events: none; } </style>上面只是一組靜態程式碼,我們希望得到的是vue元件,所以需要先建立一個元件模板stack.vue,在模板中我們可以使用v -for,遍歷出stack節點,使用:style 來修改各個item的style,程式碼如下
#
<template> <ul class="stack"> <li class="stack-item" v-for="(item, index) in pages" :style="[transform(index)]"> <img :src="item.src"> </li> </ul> </template> <script> export default { props: { // pages数据包含基础的图片数据 pages: { type: Array, default: [] } }, data () { return { // basicdata数据包含组件基本数据 basicdata: { currentPage: 0 // 默认首图的序列 }, // temporaryData数据包含组件临时数据 temporaryData: { opacity: 1, // 记录opacity zIndex: 10, // 记录zIndex visible: 3 // 记录默认显示堆叠数visible } } }, methods: { // 遍历样式 transform (index) { if (index >= this.basicdata.currentPage) { let style = {} let visible = this.temporaryData.visible let perIndex = index - this.basicdata.currentPage // visible可见数量前滑块的样式 if (index <= this.basicdata.currentPage + visible - 1) { style['opacity'] = '1' style['transform'] = 'translate3D(0,0,' + -1 * perIndex * 60 + 'px' + ')' style['zIndex'] = visible - index + this.basicdata.currentPage style['transitionTimingFunction'] = 'ease' style['transitionDuration'] = 300 + 'ms' } else { style['zIndex'] = '-1' style['transform'] = 'translate3D(0,0,' + -1 * visible * 60 + 'px' + ')' } return style } } } } </script>
關鍵點
##監聽並儲存手勢位置變化的數值
改變首圖css屬性中translate3D的x,y值
# 具體實作
在vue框架中,不建議直接操作節點,而是透過指令v-on對元素進行綁定,因此我們將綁定都寫在v-for遍歷裡,透過index進行判斷其是否是首圖,再使用:style修改首頁的樣式,具體程式碼如下:<template> <ul class="stack"> <li class="stack-item" v-for="(item, index) in pages" :style="[transformIndex(index),transform(index)]" @touchstart.stop.capture="touchstart" @touchmove.stop.capture="touchmove" @touchend.stop.capture="touchend" @mousedown.stop.capture="touchstart" @mouseup.stop.capture="touchend" @mousemove.stop.capture="touchmove"> <img :src="item.src"> </li> </ul> </template> <script> export default { props: { // pages数据包含基础的图片数据 pages: { type: Array, default: [] } }, data () { return { // basicdata数据包含组件基本数据 basicdata: { start: {}, // 记录起始位置 end: {}, // 记录终点位置 currentPage: 0 // 默认首图的序列 }, // temporaryData数据包含组件临时数据 temporaryData: { poswidth: '', // 记录位移 posheight: '', // 记录位移 tracking: false // 是否在滑动,防止多次操作,影响体验 } } }, methods: { touchstart (e) { if (this.temporaryData.tracking) { return } // 是否为touch if (e.type === 'touchstart') { if (e.touches.length > 1) { this.temporaryData.tracking = false return } else { // 记录起始位置 this.basicdata.start.t = new Date().getTime() this.basicdata.start.x = e.targetTouches[0].clientX this.basicdata.start.y = e.targetTouches[0].clientY this.basicdata.end.x = e.targetTouches[0].clientX this.basicdata.end.y = e.targetTouches[0].clientY } // pc操作 } else { this.basicdata.start.t = new Date().getTime() this.basicdata.start.x = e.clientX this.basicdata.start.y = e.clientY this.basicdata.end.x = e.clientX this.basicdata.end.y = e.clientY } this.temporaryData.tracking = true }, touchmove (e) { // 记录滑动位置 if (this.temporaryData.tracking && !this.temporaryData.animation) { if (e.type === 'touchmove') { this.basicdata.end.x = e.targetTouches[0].clientX this.basicdata.end.y = e.targetTouches[0].clientY } else { this.basicdata.end.x = e.clientX this.basicdata.end.y = e.clientY } // 计算滑动值 this.temporaryData.poswidth = this.basicdata.end.x - this.basicdata.start.x this.temporaryData.posheight = this.basicdata.end.y - this.basicdata.start.y } }, touchend (e) { this.temporaryData.tracking = false // 滑动结束,触发判断 }, // 非首页样式切换 transform (index) { if (index > this.basicdata.currentPage) { let style = {} let visible = 3 let perIndex = index - this.basicdata.currentPage // visible可见数量前滑块的样式 if (index <= this.basicdata.currentPage + visible - 1) { style['opacity'] = '1' style['transform'] = 'translate3D(0,0,' + -1 * perIndex * 60 + 'px' + ')' style['zIndex'] = visible - index + this.basicdata.currentPage style['transitionTimingFunction'] = 'ease' style['transitionDuration'] = 300 + 'ms' } else { style['zIndex'] = '-1' style['transform'] = 'translate3D(0,0,' + -1 * visible * 60 + 'px' + ')' } return style } }, // 首页样式切换 transformIndex (index) { // 处理3D效果 if (index === this.basicdata.currentPage) { let style = {} style['transform'] = 'translate3D(' + this.temporaryData.poswidth + 'px' + ',' + this.temporaryData.posheight + 'px' + ',0px)' style['opacity'] = 1 style['zIndex'] = 10 return style } } } } </script>
#3. 條件成功後的滑出,條件失敗後的回彈
條件的觸發判斷是在touchend/mouseup後進行,在這裡我們先用簡單的條件進行判定,同時給予首圖彈出及回彈的效果,代碼如下<template> <ul class="stack"> <li class="stack-item" v-for="(item, index) in pages" :style="[transformIndex(index),transform(index)]" @touchmove.stop.capture="touchmove" @touchstart.stop.capture="touchstart" @touchend.stop.capture="touchend" @mousedown.stop.capture="touchstart" @mouseup.stop.capture="touchend" @mousemove.stop.capture="touchmove"> <img :src="item.src"> </li> </ul> </template> <script> export default { props: { // pages数据包含基础的图片数据 pages: { type: Array, default: [] } }, data () { return { // basicdata数据包含组件基本数据 basicdata: { start: {}, // 记录起始位置 end: {}, // 记录终点位置 currentPage: 0 // 默认首图的序列 }, // temporaryData数据包含组件临时数据 temporaryData: { poswidth: '', // 记录位移 posheight: '', // 记录位移 tracking: false, // 是否在滑动,防止多次操作,影响体验 animation: false, // 首图是否启用动画效果,默认为否 opacity: 1 // 记录首图透明度 } } }, methods: { touchstart (e) { if (this.temporaryData.tracking) { return } // 是否为touch if (e.type === 'touchstart') { if (e.touches.length > 1) { this.temporaryData.tracking = false return } else { // 记录起始位置 this.basicdata.start.t = new Date().getTime() this.basicdata.start.x = e.targetTouches[0].clientX this.basicdata.start.y = e.targetTouches[0].clientY this.basicdata.end.x = e.targetTouches[0].clientX this.basicdata.end.y = e.targetTouches[0].clientY } // pc操作 } else { this.basicdata.start.t = new Date().getTime() this.basicdata.start.x = e.clientX this.basicdata.start.y = e.clientY this.basicdata.end.x = e.clientX this.basicdata.end.y = e.clientY } this.temporaryData.tracking = true this.temporaryData.animation = false }, touchmove (e) { // 记录滑动位置 if (this.temporaryData.tracking && !this.temporaryData.animation) { if (e.type === 'touchmove') { this.basicdata.end.x = e.targetTouches[0].clientX this.basicdata.end.y = e.targetTouches[0].clientY } else { this.basicdata.end.x = e.clientX this.basicdata.end.y = e.clientY } // 计算滑动值 this.temporaryData.poswidth = this.basicdata.end.x - this.basicdata.start.x this.temporaryData.posheight = this.basicdata.end.y - this.basicdata.start.y } }, touchend (e) { this.temporaryData.tracking = false this.temporaryData.animation = true // 滑动结束,触发判断 // 简单判断滑动宽度超出100像素时触发滑出 if (Math.abs(this.temporaryData.poswidth) >= 100) { // 最终位移简单设定为x轴200像素的偏移 let ratio = Math.abs(this.temporaryData.posheight / this.temporaryData.poswidth) this.temporaryData.poswidth = this.temporaryData.poswidth >= 0 ? this.temporaryData.poswidth + 200 : this.temporaryData.poswidth - 200 this.temporaryData.posheight = this.temporaryData.posheight >= 0 ? Math.abs(this.temporaryData.poswidth * ratio) : -Math.abs(this.temporaryData.poswidth * ratio) this.temporaryData.opacity = 0 // 不满足条件则滑入 } else { this.temporaryData.poswidth = 0 this.temporaryData.posheight = 0 } }, // 非首页样式切换 transform (index) { if (index > this.basicdata.currentPage) { let style = {} let visible = 3 let perIndex = index - this.basicdata.currentPage // visible可见数量前滑块的样式 if (index <= this.basicdata.currentPage + visible - 1) { style['opacity'] = '1' style['transform'] = 'translate3D(0,0,' + -1 * perIndex * 60 + 'px' + ')' style['zIndex'] = visible - index + this.basicdata.currentPage style['transitionTimingFunction'] = 'ease' style['transitionDuration'] = 300 + 'ms' } else { style['zIndex'] = '-1' style['transform'] = 'translate3D(0,0,' + -1 * visible * 60 + 'px' + ')' } return style } }, // 首页样式切换 transformIndex (index) { // 处理3D效果 if (index === this.basicdata.currentPage) { let style = {} style['transform'] = 'translate3D(' + this.temporaryData.poswidth + 'px' + ',' + this.temporaryData.posheight + 'px' + ',0px)' style['opacity'] = this.temporaryData.opacity style['zIndex'] = 10 if (this.temporaryData.animation) { style['transitionTimingFunction'] = 'ease' style['transitionDuration'] = 300 + 'ms' } return style } } } } </script>
<template> <ul class="stack"> <li class="stack-item" v-for="(item, index) in pages" :style="[transformIndex(index),transform(index)]" @touchmove.stop.capture="touchmove" @touchstart.stop.capture="touchstart" @touchend.stop.capture="touchend" @mousedown.stop.capture="touchstart" @mouseup.stop.capture="touchend" @mousemove.stop.capture="touchmove" @webkit-transition-end="onTransitionEnd" @transitionend="onTransitionEnd" > <img :src="item.src"> </li> </ul> </template> <script> export default { props: { // pages数据包含基础的图片数据 pages: { type: Array, default: [] } }, data () { return { // basicdata数据包含组件基本数据 basicdata: { start: {}, // 记录起始位置 end: {}, // 记录终点位置 currentPage: 0 // 默认首图的序列 }, // temporaryData数据包含组件临时数据 temporaryData: { poswidth: '', // 记录位移 posheight: '', // 记录位移 lastPosWidth: '', // 记录上次最终位移 lastPosHeight: '', // 记录上次最终位移 tracking: false, // 是否在滑动,防止多次操作,影响体验 animation: false, // 首图是否启用动画效果,默认为否 opacity: 1, // 记录首图透明度 swipe: false // onTransition判定条件 } } }, methods: { touchstart (e) { if (this.temporaryData.tracking) { return } // 是否为touch if (e.type === 'touchstart') { if (e.touches.length > 1) { this.temporaryData.tracking = false return } else { // 记录起始位置 this.basicdata.start.t = new Date().getTime() this.basicdata.start.x = e.targetTouches[0].clientX this.basicdata.start.y = e.targetTouches[0].clientY this.basicdata.end.x = e.targetTouches[0].clientX this.basicdata.end.y = e.targetTouches[0].clientY } // pc操作 } else { this.basicdata.start.t = new Date().getTime() this.basicdata.start.x = e.clientX this.basicdata.start.y = e.clientY this.basicdata.end.x = e.clientX this.basicdata.end.y = e.clientY } this.temporaryData.tracking = true this.temporaryData.animation = false }, touchmove (e) { // 记录滑动位置 if (this.temporaryData.tracking && !this.temporaryData.animation) { if (e.type === 'touchmove') { this.basicdata.end.x = e.targetTouches[0].clientX this.basicdata.end.y = e.targetTouches[0].clientY } else { this.basicdata.end.x = e.clientX this.basicdata.end.y = e.clientY } // 计算滑动值 this.temporaryData.poswidth = this.basicdata.end.x - this.basicdata.start.x this.temporaryData.posheight = this.basicdata.end.y - this.basicdata.start.y } }, touchend (e) { this.temporaryData.tracking = false this.temporaryData.animation = true // 滑动结束,触发判断 // 简单判断滑动宽度超出100像素时触发滑出 if (Math.abs(this.temporaryData.poswidth) >= 100) { // 最终位移简单设定为x轴200像素的偏移 let ratio = Math.abs(this.temporaryData.posheight / this.temporaryData.poswidth) this.temporaryData.poswidth = this.temporaryData.poswidth >= 0 ? this.temporaryData.poswidth + 200 : this.temporaryData.poswidth - 200 this.temporaryData.posheight = this.temporaryData.posheight >= 0 ? Math.abs(this.temporaryData.poswidth * ratio) : -Math.abs(this.temporaryData.poswidth * ratio) this.temporaryData.opacity = 0 this.temporaryData.swipe = true // 记录最终滑动距离 this.temporaryData.lastPosWidth = this.temporaryData.poswidth this.temporaryData.lastPosHeight = this.temporaryData.posheight // currentPage+1 引发排序变化 this.basicdata.currentPage += 1 // currentPage切换,整体dom进行变化,把第一层滑动置零 this.$nextTick(() => { this.temporaryData.poswidth = 0 this.temporaryData.posheight = 0 this.temporaryData.opacity = 1 }) // 不满足条件则滑入 } else { this.temporaryData.poswidth = 0 this.temporaryData.posheight = 0 this.temporaryData.swipe = false } }, onTransitionEnd (index) { // dom发生变化后,正在执行的动画滑动序列已经变为上一层 if (this.temporaryData.swipe && index === this.basicdata.currentPage - 1) { this.temporaryData.animation = true this.temporaryData.lastPosWidth = 0 this.temporaryData.lastPosHeight = 0 this.temporaryData.swipe = false } }, // 非首页样式切换 transform (index) { if (index > this.basicdata.currentPage) { let style = {} let visible = 3 let perIndex = index - this.basicdata.currentPage // visible可见数量前滑块的样式 if (index <= this.basicdata.currentPage + visible - 1) { style['opacity'] = '1' style['transform'] = 'translate3D(0,0,' + -1 * perIndex * 60 + 'px' + ')' style['zIndex'] = visible - index + this.basicdata.currentPage style['transitionTimingFunction'] = 'ease' style['transitionDuration'] = 300 + 'ms' } else { style['zIndex'] = '-1' style['transform'] = 'translate3D(0,0,' + -1 * visible * 60 + 'px' + ')' } return style // 已滑动模块释放后 } else if (index === this.basicdata.currentPage - 1) { let style = {} // 继续执行动画 style['transform'] = 'translate3D(' + this.temporaryData.lastPosWidth + 'px' + ',' + this.temporaryData.lastPosHeight + 'px' + ',0px)' style['opacity'] = '0' style['zIndex'] = '-1' style['transitionTimingFunction'] = 'ease' style['transitionDuration'] = 300 + 'ms' return style } }, // 首页样式切换 transformIndex (index) { // 处理3D效果 if (index === this.basicdata.currentPage) { let style = {} style['transform'] = 'translate3D(' + this.temporaryData.poswidth + 'px' + ',' + this.temporaryData.posheight + 'px' + ',0px)' style['opacity'] = this.temporaryData.opacity style['zIndex'] = 10 if (this.temporaryData.animation) { style['transitionTimingFunction'] = 'ease' style['transitionDuration'] = 300 + 'ms' } return style } } } } </script># ########ok~ 完成了上面的四步,堆疊元件的基本功能就已經實現,快來看看效果吧######### ######堆疊滑動效果已經出來了,但是探探在體驗上,還增加了觸碰角度偏移,以及判定滑出面積比例###
角度偏移的原理,是在使用者每次進行touch時,記錄使用者觸碰位置,計算出最大的偏移角度,在滑動出現位移時,線性增加角度以至最大的偏移角度。
使用在stack中具體要做的是:
touchmove中計算出所需角度和方向
以上是透過使用vue製作滑動堆疊組件(詳細教學)的詳細內容。更多資訊請關注PHP中文網其他相關文章!