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How to implement long press deletion in uniapp

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coldplay.xixiOriginal
2020-12-14 11:07:347660browse

Uniapp implements long press deletion method: use the component to confirm deletion, the code is [this.Loop = setTimeout(function() {uni.showModal({title: 'Delete',content: 'Would you like to delete this article? Message?',].

How to implement long press deletion in uniapp

##The operating environment of this tutorial: windows7 system, uni-app2.5.1 version, thinkpad t480 computer.

Recommended (free): uni-app development tutorial

Uniapp's method of long press deletion:

1. View code

<view class="imgShow" v-for="(item,index) in list" :key="index">
  <image :src="item.image_path" @touchstart.prevent="touchstart(index)" @touchend.prevent="touchend"></image>
</view>

2. Script code

touchstart(index) {
  let that = this;
  clearInterval(this.Loop); //再次清空定时器,防止重复注册定时器
    this.Loop = setTimeout(function() {
      uni.showModal({
        title: &#39;删除&#39;,
        content: &#39;请问要删除本条消息吗?&#39;,
        success:async function(res) {
          if (res.confirm) {
            var id = that.list[index].id
            let data = await that.$http.post(&#39;api/shop/shop_qualification_image/delete&#39;,{
            &#39;id&#39;:id,
          }).then(function(data){
            console.log(&#39;用户点击确定&#39;)
          }).catch(function(data){});
        } else if (res.cancel) {
          console.log(&#39;用户点击取消&#39;)
        }
      }
    });
  }.bind(this), 1000);
},
touchend() {
  clearInterval(this.Loop);
},

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