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在uniapp中onPullDownRefresh触发多次的解决

在uniapp中onPullDownRefresh触发多次的解决

作者: WMSmile | 来源:发表于2022-09-13 19:04 被阅读0次

在uniapp中onPullDownRefresh触发多次的解决方法

微信小程序同样
由于在uniapp中onPullDownRefresh触发多次的,多次下拉会导致圆圈一直再转,而不消失。

pages.json文件 enablePullDownRefresh 一定要设置为true,才可以执行刷新的操作。

        {
            "path": "pages/business/demo",
            "style": {
                "navigationBarTitleText": "测试",
                "enablePullDownRefresh": true
            }

        }

解决方案:启动一个定时器来监控,是否触发了两次,以及是否再刷新。

isRefresh: false, //模拟网络请求
isStart: false, //监控二次触发
定时器 来控制刷新按钮的消失

<template>
    <view class="b-content">

        <view class="c-header">
            <button type="default" class="c-header-btn">+我要发布</button>
        </view>

        <view class="head-nav">
            <!-- 头部选项卡 -->
            <view v-for="(item,y) in navList" :key="y" :class="listIndex == y ? 'activite':''"
                @click="checkListIndex(y)">
                {{item.name}}
            </view>
        </view>
        <!-- 内容 -->
        <view class="content">
            <view class="c-item" v-for="(item,i) in dataList" :key="i">
                <view class="c-item-right">
                    <image class="c-item-right-image" src="" mode=""></image>
                    <view class="item-right-btn"><button class="c-item-right-btn">联系ta</button></view>

                </view>
                <view class="c-item-mid">
                    <text class="c-item-mid-name">董小姐</text>
                    <text
                        class="c-item-mid-content">在现代社会中,有一个永恒的话题,那就是竞争与合作,一个人不可能地生活在社会中,而人与人之间的竞争与合作又是我们社会生存和发展的动力。</text>
                    <text class="c-item-mid-time">2020-09-08</text>
                </view>
            </view>
        </view>
        <!--        <uni-list>
            <uni-list-item v-for="(item,i) in dataList" :key="i" :title="item.id">
                <view>
                    <text>{{item.name}}</text>
                </view>
            </uni-list-item>
        </uni-list> -->




    </view>

</template>

脚本

<script>
    export default {
        data() {
            return {
                navIndex: 1,
                navList: [{
                    id: "tab01",
                    name: '最新',
                    newsid: 0
                }, {
                    id: "tab02",
                    name: '推荐',
                    newsid: 23
                }, {
                    id: "tab03",
                    name: '关注',
                    newsid: 223
                }],
                listIndex: 0,
                dataList: [{
                    id: "tab01",
                    name: '最新',
                }, {
                    id: "tab01",
                    name: '最新',
                }, {
                    id: "tab01",
                    name: '最新',
                }],

                isRefresh: false,
                isStart: false,
                pageSize: 10, //条数
                currentPage: 1, //页数
                datalist: {}, //数据

                timer: null, //定时器名称
            }
        },
        methods: {
            checkIndex(index) {
                this.navIndex = index;

                // this.pageSize = 10
                // this.currentPage = 1
                // this.datalist = {}
                // this.getList(this.HospitalCode, e)
            },

            checkListIndex(index) {
                this.listIndex = index;

                // this.pageSize = 10
                // this.currentPage = 1
                // this.datalist = {}
                // this.getList(this.HospitalCode, e)
            },

            getList(HospitalCode, index) {
                // this.$request('/api/eurekamedicalsystem/v2/medical-critical-value', {
                //  "HospitalCode": HospitalCode,
                //  "statusCode": this.state,
                //  "reportEndDatetime": this.reportEndDatetime,
                //  "reportStartDatetime": this.reportStartDatetime,
                //  "sorting": "DealDatetime desc",
                //  // "key": this.searchValue
                //  "pageSize": this.pageSize,
                //  "currentPage": this.currentPage
                // }).then(res => {
                //  //上拉加载数据开始
                //  if (res.items.length == 0) {
                //      // this.contentText = '没有更多了'
                //      uni.showToast({
                //          title: '没有更多数据了',
                //          icon: "none"
                //      });
                //  }
                //  if (this.currentPage != 1) {
                //      this.datalist = this.datalist.concat(res.items)
                //  } else {
                //      this.datalist = res.items
                //      //上拉加载数据结束
                //  }
                // })
                this.dataList = this.dataList.concat(this.dataList)
            },



        },
        // 下拉刷新
        onPullDownRefresh() {
            console.log('refresh111');
            if (this.isRefresh) {
                console.log('refresh22222');
                this.isStart = true;
                return
            }

            this.isRefresh = true

            let _self = this
            console.log('refresh');
            this.dataList = [{
                id: "tab01",
                name: '最新',
            }, {
                id: "tab01",
                name: '最新',
            }, {
                id: "tab01",
                name: '最新',
            }];
            setTimeout(function() {
                console.log('refresh33333');
                _self.isRefresh = false
                uni.stopPullDownRefresh(); //停止当前页面下拉刷新
                _self.currentPage = 1;
                _self.getList(_self.HospitalCode);

            }, 3000);
        },

        // 上拉加载
        onReachBottom() {
            if (this.isRefresh) {
                return
            }
            this.isRefresh = true
            
            let _self = this
            uni.showNavigationBarLoading()
            console.log('reach');
            setTimeout(function() {
                _self.isRefresh = false
                _self.currentPage++;
                _self.getList(_self.HospitalCode)
                uni.hideNavigationBarLoading()

            }, 1000);
        },
        //一般在页面需要的地方使用,这里我是放在了onshow()里
        onShow() {
            let _self = this
            // console.log('onshow');
            this.timer = setInterval(function() {
                // 放入你自己的业务逻辑代码
                if (_self.isRefresh == false && _self.isStart == true) {
                    uni.stopPullDownRefresh(); //停止当前页面下拉刷新
                    _self.isStart = false;
                    console.log("success dismiss ")
                }else{
                    console.log("success dismiss ",_self.isRefresh,_self.isStart)
                }
                
            }, 1000);
        },
        //uniapp中onHide()能监听到页面离开
        onHide() { //离开页面前清除计时器
            // console.log('onHide');
            clearInterval(this.timer);
            this.timer = null;
        },

    }
</script>

样式

<style lang="scss" scoped>
    .head-nav {
        width: 50%;
        margin: 20rpx auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .activite {
        font-weight: bold;
        border-bottom: 6rpx solid #0065d9;
        color: #0065d9;
    }

    .head-nav>view {
        padding-bottom: 10rpx;
    }

    .c-header {
        display: flex;
        justify-content: center;
        align-items: center;
        margin-top: 10rpx;

    }

    .c-header-btn {
        width: 300rpx;
        height: 80rpx;
        margin: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        // font-size: 12rpx;
        // font-family: PingFang SC;
        // font-weight: 500;
        border: none;
        background-color: #eb8101;
        color: white;
        border-radius: 15rpx;

        &::after {
            border: none;
        }

    }

    .content {
        // background: #008000;
    }

    .c-item {
        display: flex;
        flex-direction: row;

    }

    .c-item-right {
        display: flex;
        flex-direction: column;
        text-align: center;
        // justify-content: center;
        align-items: center;
        width: 160rpx;
    }

    .c-item-right-image {
        margin-top: 20rpx;
        width: 120rpx;
        height: 120rpx;
        background-color: #0065d9;
        border-radius: 60rpx;

    }


    .c-item-mid {
        display: flex;
        flex-direction: column;
        margin-left: 20rpx;
        flex: 1;

    }

    .c-item-mid-name {
        margin-top: 10rpx;
        font-weight: bold;
        font-size: 30rpx;
    }

    .c-item-mid-content {
        margin-top: 10rpx;
        margin-left: 20rpx;
        margin-right: 20rpx;
        font-size: 30rpx;
    }

    .c-item-mid-time {
        margin-top: 10rpx;
        margin-bottom: 10rpx;
        font-size: 28rpx;
    }
</style>
<style lang="scss">
    .item-right-btn {
        margin: 10rpx 10rpx auto 10rpx;
    }

    .c-item-right-btn {
        margin: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        font-size: 12rpx;
        // font-family: PingFang SC;
        // font-weight: 500;
        border: none;
        background-color: lightgray;
        color: #eb8101;

        &::after {
            border: none;
        }
    }
</style>

最后,你可以使用一些第三方的下拉刷新的插件,或者使用scollview来自定义刷新。

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