JavaScript

超轻量级php框架startmvc

详解Vue调用手机相机和相册以及上传

更新时间:2020-08-24 19:06 作者:startmvc
组件<template><div><inputid="upload_file"type="file"style="display:none;"accept='image/*'name="file"@ch

组件


<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="http://114.115.162.39/static/image/x.png" class="upload_warp_img_div_del" @click="fileDel(index)">
 </div>
 <img :src="item.file.src" style="display: inline-block;">
 </div>
 <div class="upload_warp_left" id="upload_warp_left" @click="fileClick()" v-if="this.imgList.length < 6">
 <!--<img src="../assets/upload.png">-->
 <img src="../assets/images/添加图片.png" class="imgs"/>
 </div>
 </div>
 
 </div>
 
 <div class="upload_warp_text">
 <span>选中{{imgList.length}}张文件,共{{bytesToSize(this.size)}}</span>
 </div>
 </div>
 
</template>

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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