详解Vue调用手机相机和相册以及上传

<template>
 
  
 <div>
  <input id="upload_file" type="file" style="display: none;" accept='image/*' name="file" @change="fileChange($event)"/>
  <div class="image-item space" @click="showActionSheet()">
   <div class="image-up"></div>
  </div>
  
  <div class="upload_warp">
   <div class="upload_warp_img">
    <div class="upload_warp_img_div" v-for="(item,index) in imgList">
     <div class="upload_warp_img_div_top">
      <img src="/UploadFiles/2021-04-02/x.png">

javaScript代码


<script type="text/ecmascript-6">
  export default {
    name: "cameras-and-albums",
   data(){
    return{
     imgList: [],
     datas: new FormData(),
     files:0,
     size:0
    }
   },
   methods:{
    //调用相册&相机
    fileClick() {
     $('#upload_file').click();
 
    },
    //调用手机摄像头并拍照
    getImage() {
     let cmr = plus.camera.getCamera();
     cmr.captureImage(function(p) {
      plus.io.resolveLocalFileSystemURL(p, function(entry) {
       compressImage(entry.toLocalURL(),entry.name);
      }, function(e) {
       plus.nativeUI.toast("读取拍照文件错误：" + e.message);
      });
     }, function(e) {
     }, {
      filter: 'image'
     });
    },
    //从相册选择照片
    galleryImgs() {
     plus.gallery.pick(function(e) {
      let name = e.substr(e.lastIndexOf('/') + 1);
      compressImage(e,name);
     }, function(e) {
     }, {
      filter: "image"
     });
    },
    //点击事件，弹出选择摄像头和相册的选项
    showActionSheet() {
     let bts = [{
      title: "拍照"
     }, {
      title: "从相册选择"
     }];
     plus.nativeUI.actionSheet({
       cancel: "取消",
       buttons: bts
      },
      function(e) {
       if (e.index == 1) {
        this.getImage();
       } else if (e.index == 2) {
        this.galleryImgs();
       }
      }
     );
    },
    fileChange(el) {
     this.files=$("#upload_file").get(0).files;
     console.log(this.files.length);
     for(let i=0;i<this.files.length;i++){
      this.datas.append("file",this.files[i]);
     }
     this.show1=false;
     console.log(typeof this.files);
     console.log(this.files);
     if (!el.target.files[0].size) return;
     this.fileList(el.target);
     el.target.value = ''
    },
    fileList(fileList) {
     let files = fileList.files;
     for (let i = 0; i < files.length; i++) {
      //判断是否为文件夹
      if (files[i].type != '') {
       this.fileAdd(files[i]);
      } else {
       //文件夹处理
       this.folders(fileList.items[i]);
      }
     }
    },
    //文件夹处理
    folders(files) {
     let _this = this;
     //判断是否为原生file
     if (files.kind) {
      files = files.webkitGetAsEntry();
     }
     files.createReader().readEntries(function (file) {
      for (let i = 0; i < file.length; i++) {
       if (file[i].isFile) {
        _this.foldersAdd(file[i]);
       } else {
        _this.folders(file[i]);
       }
      }
     })
    },
    fileAdd(file) {
     //总大小
     this.size = this.size + file.size;
     //判断是否为图片文件
     if (file.type.indexOf('image') == -1) {
      file.src = 'wenjian.png';
      this.imgList.push({
       file
      });
     } else {
      let reader = new FileReader();
      reader.vue = this;
      reader.readAsDataURL(file);
      reader.onload = function () {
       file.src = this.result;
       this.vue.imgList.push({
        file
       });
      }
     }
    },
    fileDel(index) {
     this.size = this.size - this.imgList[index].file.size;//总大小
     this.imgList.splice(index, 1);
    },
    bytesToSize(bytes) {
     if (bytes === 0){
      return '0 B';
     }
     let k = 1000, // or 1024
      sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'],
      i = Math.floor(Math.log(bytes) / Math.log(k));
     return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i];
    },
    dragenter(el) {
     el.stopPropagation();
     el.preventDefault();
    },
    dragover(el) {
     el.stopPropagation();
     el.preventDefault();
    },
    drop(el) {
     el.stopPropagation();
     el.preventDefault();
     this.fileList(el.dataTransfer);
    },
    shows(et,tx){
     this.strut=et;
     this.txt=tx;
    },
    handleClick(){
     this.$store.commit('add')
    },
   },
  }
</script>



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