html5+实现plus.io进行拍照和图片等获取-爱站

使用Hbuilder开发工具开发：实现可对Android机进行控制和获取资源
说明：IO模块管理本地文件系统，用于对文件系统的目录浏览、文件的读取、文件的写入等操作。通过plus.io可获取文件系统管理对象

获取目录：常量：

应用私有资源目录，对应常量plus.io.PRIVATE_WWW，仅应用自身可读
应用私有文档目录，对应常量plus.io.PRIVATE_DOC，仅应用自身可读写
应用公共文档目录，对应常量plus.io.PUBLIC_DOCUMENTS，多应用时都可读写，常用于保存应用间共享文件
应用公共下载目录，对应常量plus.io.PUBLIC_DOWNLOADS，多应用时都可读写，常用于保存下载文件

以下有四个demo

<button @click.stop="videoCapture" class="delBtn">录像</button>
 <button @click.stop="captureImage" class="delBtn">拍照</button>
 <button @click.stop="getImage" class="delBtn">获取图片</button>
 <button @click.stop="getImageUrl" class="delBtn">获取图片目录</button>

//打开摄像头进行录像
videoCapture(){
                    this.cmr = plus.camera.getCamera();
                    var res = this.cmr.supportedVideoResolutions[0];
                    var fmt = this.cmr.supportedVideoFormats[0];
                    console.log("Resolution: "+res+", Format: "+fmt);
                    this.cmr.startVideoCapture( function( path ){
                            alert( "Capture video success: " + path );  
                        },
                        function( error ) {
                            alert( "Capture video failed: " + error.message );
                        },
                        {resolution:res,format:fmt}
                    );
                    // 拍摄10s后自动完成 
                    setTimeout( this.stopCapture, 10000 );
            },

//停止摄像头录像
            stopCapture(){
                console.log("stopCapture");
                this.cmr.stopVideoCapture()   //设备现在不支持，需要手动调用关闭摄像头
            },

//打开摄像头进行拍照
            captureImage(){
                var cmr = plus.camera.getCamera();
                    var res = cmr.supportedImageResolutions[0];
                    var fmt = cmr.supportedImageFormats[0];
                    console.log("Resolution: "+res+", Format: "+fmt);
                    cmr.captureImage( function( path ){
                        //path   拍照成功获取到路径
                            console.log(path)
                        },
                        function( error ) {   //取消拍照的函数
                            console.log(error)
                        },
                        {resolution:res,format:fmt}
                    )
            },

//根据路径获取图片参数
            getImage(){
                
                 plus.io.getImageInfo({
                     src: "/storage/emulated/0/Android/data/io.dcloud.HBuilder/apps/HBuilder/doc/1652421993337.jpg",
                     success: function(data){  
                        console.log(JSON.stringify(data));  
                    },  
                    fail: function(err){  
                        console.log(JSON.stringify(err));  
                    }
                 })
            },

//获取根目录找到图片
            getImageUrl(){
                console.log(this)
                let that = this
                console.log(that)
                 // 应用私有文档目录常量
                plus.io.requestFileSystem( plus.io.PRIVATE_DOC , function(fs){
                        // fs.root是根目录操作对象DirectoryEntry
                        // 创建读取目录信息对象 
                        var directoryReader = fs.root.createReader();
                        console.log(directoryReader)
                        directoryReader.readEntries( function( entries ){
                            console.log( entries.length)
                            var reg = /.(png|jpg|gif|jpeg|webp)$/;
                            entries.forEach( item =>{
                                console.log(item.name)
                                if(reg.test(item.name)) {
                                    console.log(item.name)
                                    console.log(that.imageList)
                                    let name = '/storage/emulated/0/Android/data/io.dcloud.HBuilder/apps/HBuilder/doc/'+item.name
                                    that.imageList.push(name)
                                    console.log(that.imageList)
                                }
                            })
                            console.log(that.imageList)
                        }, function ( e ) {
                            alert( "Read entries failed: " + e.message );
                        } );
                    } );
            }