微信小程序实现手指拖动选项排序
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2020-10-15
10:04:54
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微信小程序实现手指拖动选项排序微信小程序实现手指拖动选项排序
主要介绍了微信小程序实现手指拖动选项排序，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了微信小程序实现手指拖动选项排序的具体代码，供大家参考，具体内容如下
效果：
wxml：
<view>
<view class="dileititle">手指移动选项排序</view>
<view style="width:740rpx;height:80vh;overflow-y:auto;padding:0 90rpx;margin:auto;" id="movebox">
<block wx:for="{{list}}" wx:key="index">
<view catchtouchmove="listitemmove" catchtouchend="listitemmove" data-index="{{index}}" class="flex1 dileiitemlist" id="movelist{{index}}" style="left:0;right:0;{{nowmoveindex==index?('position:absolute;top:'+movetop+'px;height:'+itemheight+'px;'):''}}">
<view class="{{moveoutindex==index?'changemovenow':''}}" style="height:0;transition: height 0.2s;"></view>
<view class="ranknum">{{index+1}}</view>
<view class="flex1" style="border-radius:10rpx;width:440rpx;position:relative;color:#fff;">
<view style="flex:1;text-align: center;margin-right: 20rpx;padding: 20rpx 20rpx;background:#8eb1f7;border-radius:10rpx;">{{item.member.nickname}}</view>
</view>
</view>
</block>
</view>
</view>
<button class='tijiao' catchtap="lastsubmit">确定</button>
js：
let app = getApp()
app.unitgameinfo = {"members":[{"member":{"nickname":"小程序照片合成","job":"ckext"},},{"member":{"nickname":"高球丸子"},},{"member":{"nickname":"DRobertdsf","job":"黄金"},},{"member":{"nickname":"erer","job":"ckext"},},{"member":{"nickname":"just do it","job":"黄金"},},{"member":{"nickname":"888"},}],};
Page({
data: {
},
onLoad: function (options) {
var info = app.unitgameinfo,list;
list = info.members;
this.setData({options,info,list});
this.getwxmlcode("#movebox",(resp)=>{
this.setData({movebox:resp})
setTimeout(()=>{this.getwxmlcode("#movelist0",(res)=>{
this.setData({movelist0:res})
var jiange = res.top-resp.top;
var yiban = res.bottom - res.top + jiange;
this.setData({
itemheight:res.bottom - res.top,
jiange:yiban, //两条中间到另一条的距离
jianqu:resp.top-(res.bottom - res.top)/2, //位置要减去距离
})
})},300)
})
},
getwxmlcode(str,cal){
const query1 = wx.createSelectorQuery()
query1.select(str).boundingClientRect()
query1.selectViewport().scrollOffset()
query1.exec((res) => {
if(cal) cal(res[0])
})
},
listitemmove(e){
// console.log(e)
if(e.type=="touchmove"){
var movetop = e.touches[0].pageY-this.data.itemheight;
var moveoutindex = parseInt((movetop-this.data.jianqu)/this.data.jiange);
if(e.currentTarget.dataset.index<=moveoutindex) moveoutindex++;
this.moveoutindex = moveoutindex;
this.setData({nowmoveindex:e.currentTarget.dataset.index,movetop,moveoutindex})
}else{
let index = e.currentTarget.dataset.index,score = this.data.list;
let data = {...score[index]};
score.splice(index,1);
if(index<=this.moveoutindex-1) this.moveoutindex--;
score.splice(this.moveoutindex,0,data);
this.setData({list:score,moveoutindex:-1,nowmoveindex:-1});
}
},
onShow: function(){
},
lastsubmit(){
console.log(this.data.list)
},
})
wxss：
page{background-color: #fff;font-size:30rpx;text-align: center;color: #2952a5;}
.tijiao{
color: #fff;font-size: 30rpx;line-height: 2.8;
margin: 20rpx auto 20rpx;width:80vw;position: fixed;bottom: 50rpx;left: 10vw;
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