相思资源网 Design By www.200059.com
最初打算使用scroll-view实现,效果好、流畅、有惯性滑动,但由于滚动条没法去掉、无法实现上下层的帧布局,最终放弃了。
还是自己写个吧,利用手势事件。遗憾的是小程序中目前没有像Android中快速滑动事件,所以,要实现惯性滑动是不可能了。
item的布局:
推荐小程序优先使用flex布局,完全够用。这也是微信推荐的。
<view wx:for="{{cardTeams}}" wx:for-item="cardTeam" id="{{cardTeam.id}}" class="item" bindtouchstart="drawStart" bindtouchmove="drawMove" bindtouchend="drawEnd" style="right:{{cardTeam.right}}px"> <image class="img" src="/UploadFiles/2021-04-02/tooopen_sy_143912755726.jpg">主要是将删除按钮的设为绝对定位(position: absolute):
.item .remove{ width: 60px; height: 100%; background-color: red; position: absolute; top: 0; right: -60px; display: flex; justify-content: center; align-items: center; }Page({ data: { cardTeams:[{"id":"aaaaa", "name":"android教程", "url":"http://www.see-source.com", "right":0, "startRight":0},{"id":"bbbb", "name":"小程序教程", "url":"http://www.see-source.com", "right":0, "startRight":0}] }, drawStart : function(e){ // console.log("drawStart"); var touch = e.touches[0]; startX = touch.clientX; startY = touch.clientY; var cardTeams = this.data.cardTeams; for(var i in cardTeams){ var data = cardTeams[i]; data.startRight = data.right; } key = true; }, drawEnd : function(e){ console.log("drawEnd"); var cardTeams = this.data.cardTeams; for(var i in cardTeams){ var data = cardTeams[i]; if(data.right <= 100/2){ data.right = 0; }else{ data.right = maxRight; } } this.setData({ cardTeams:cardTeams }); }, drawMove : function(e){ //console.log("drawMove"); var self = this; var dataId = e.currentTarget.id; var cardTeams = this.data.cardTeams; if(key){ var touch = e.touches[0]; endX = touch.clientX; endY = touch.clientY; console.log("startX="+startX+" endX="+endX ); if(endX - startX == 0) return ; var res = cardTeams; //从右往左 if((endX - startX) < 0){ for(var k in res){ var data = res[k]; if(res[k].id == dataId){ var startRight = res[k].startRight; var change = startX - endX; startRight += change; if(startRight > maxRight) startRight = maxRight; res[k].right = startRight; } } }else{//从左往右 for(var k in res){ var data = res[k]; if(res[k].id == dataId){ var startRight = res[k].startRight; var change = endX - startX; startRight -= change; if(startRight < 0) startRight = 0; res[k].right = startRight ; } } } self.setData({ cardTeams:cardTeams }); } }, //删除item delItem: function(e){ var dataId = e.target.dataset.id; console.log("删除"+dataId); var cardTeams = this.data.cardTeams; var newCardTeams = []; for(var i in cardTeams){ var item = cardTeams[i]; if(item.id != dataId){ newCardTeams.push(item); } } this.setData({ cardTeams:newCardTeams }); }, onLoad: function () { console.log('onLoad:'+app.globalData.domain) } })drawStart用于记录手指触碰时的位置,drawMove记录手指滑动的位置,两者的差值就是删除按钮的偏移量
drawEnd手指抬起时触发,用于设置弹回、摊开效果。目前我的是超过一半自动弹开,不足一半自动收回。以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
标签:
微信小程序,滑动删除
相思资源网 Design By www.200059.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
相思资源网 Design By www.200059.com
暂无微信小程序实现滑动删除效果的评论...