想做一个全屏滚动的效果，于是在网上找了一个差不多的例子，但是觉得有些地方不是很好，于是改进了一下；
原文：https://blog.csdn.net/W_SSNY/article/details/84298788
先上效果：
代码：
wxml:
<!-- 第一页 -- >
<view id='hook1' class="section section01 {{scrollindex==0?'active':''}}" style='background:red' bindtouchstart="scrollTouchStart" bindtouchmove='scrollTouchMove' bindtouchend="scrollTouchEnd"> <view class='cont'> <view class='cont-body'> <view>one</view> </view> </view> </view> <!-- 第二页 --> <view id='hook2' class="section section02 {{scrollindex==1?'active':''}}" style='background:pink' bindtouchstart="scrollTouchStart" bindtouchmove='scrollTouchMove' bindtouchend="scrollTouchEnd"> <view class='cont'> <view class='cont-body'> <view>two</view> </view> </view> </view> <!-- 第三页 --> <view id='hook3' class="section section03 {{scrollindex==2?'active':''}}" style='background:blue' bindtouchstart="scrollTouchStart" bindtouchmove='scrollTouchMove' bindtouchend="scrollTouchEnd"> <view class='cont'> <view class='cont-body'> <view>three</view> </view> </view> </view> <!-- 第四页 --> <view id='hook4' class="section section04 {{scrollindex==3?'active':''}}" style='background:green' bindtouchstart="scrollTouchStart" bindtouchmove='scrollTouchMove' bindtouchend="scrollTouchEnd"> <view class='cont'> <view class='cont-body'> <view>foure</view> </view> </view> </view>
wxss:
page { height: 100%; background: fff; color: #282828; } .container { flex: 1; flex-direction: column; box-sizing: border-box; padding: 0; align-items: initial; justify-content: first baseline; } .container-fill { height: 100%; overflow: hidden; } .scroll-fullpage { height: 100%; } .section { height: 100%; } .cont { width: 100%; height: 100%; margin: 0 auto; position: relative; } .cont .cont-body { width: 75%; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
js:
Page({ /** * 页面的初始数据 */ data: { scrollindex: 0, // 当前页面的索引值 totalnum: 4, // 总共页面数 starty: 0, // 开始的位置x startTime: 0, // 开始的时间戳 endy: 0, // 结束的位置y endTime: 0, // 结束的时间戳 critical: 80, // 触发翻页的临界值 maxTimeCritical: 300, // 滑动的时间戳临界值上限 minTimeCritical: 100, // 滑动的时间戳临界值下限 margintop: 0, // 滑动下拉距离 currentTarget: null, // 当前点击的元素的id }, scrollTouchStart: function(e) { let py = e.touches[0].pageY, stamp = e.timeStamp, currentTarget = e.currentTarget.id; console.log(py); this.setData({ starty: py, startTime: stamp, currentTarget: currentTarget }) }, scrollTouchMove(e) { // console.log(e); }, scrollTouchEnd: function(e) { let py = e.changedTouches[0].pageY, stamp = e.timeStamp, d = this.data, timeStampdiffer = stamp - d.startTime; this.setData({ endy: py, endTime: stamp }) console.log('开始：' + d.starty, '结束：' + e.changedTouches[0].pageY); console.log('时间戳之差: ' + timeStampdiffer); if (timeStampdiffer <= d.maxTimeCritical && timeStampdiffer > d.minTimeCritical && (d.starty > e.changedTouches[0].pageY)) { let currentTarget = parseInt(d.currentTarget.slice(4)), nextTarget = currentTarget + 1; const query = wx.createSelectorQuery(); query.select(`#hook${nextTarget}`).boundingClientRect(); query.selectViewport().scrollOffset(); query.exec(function (res) { // console.log(res); if (res[0] != null) { wx.pageScrollTo({ scrollTop: res[0].height * currentTarget, }) } }) } else if (timeStampdiffer <= d.maxTimeCritical && timeStampdiffer > d.minTimeCritical && (d.starty < e.changedTouches[0].pageY)) { // 下拉 let currentTarget = parseInt(d.currentTarget.slice(4)), preTarget = currentTarget - 2 == -1 ? 0 : currentTarget - 2; const query = wx.createSelectorQuery(); query.select(`#hook1`).boundingClientRect(); query.selectViewport().scrollOffset(); query.exec(function (res) { console.log(res); wx.pageScrollTo({ scrollTop: res[0].height * preTarget }) }) } }, })
如有错误的地方欢迎指正~，共勉。