使用场景
调用手机自带的文件管理 选择文件
效果展示
autojs版本号
功能
- 可任意选择图片, 音频, 视频
- 可以更换imgView的图片
- 可以播放音频
- 可以播放视频
你将学到以下知识
- 调用文件管理选择文件
- 接收文件管理返回的数据
- 增加或者删除子view
- 使用文件头判断文件类型
- uri转文件路径
完整代码
"ui"; importClass(android.content.Intent); importClass(android.graphics.BitmapFactory); importClass(android.provider.MediaStore); importClass(android.webkit.MimeTypeMap); ui.layout( <vertical> <button id="btnImg" text="选择图片" /> <button id="btnAudio" text="选择音频" /> <button id="btnVideo" text="选择视频" /> <button id="btnImgAndVideo" text="选择图片和视频" /> <button id="btnAnyFile" text="选择任意文件" /> <text textSize="30sp" w="*" gravity="center" textStyle="bold"> AutoJsPro教程 牙叔 </text> <vertical id="parentView"></vertical> </vertical> ); let imgRequestCode = 1; let audioRequestCode = 2; let videoRequestCode = 3; let imgAndVideoRequestCode = 4; let imgAnyFileRequestCode = 5; ui.btnImg.on("click", () => { let fileType = "image/*"; let requestCode = imgRequestCode; var intent = new Intent(); intent.setType(fileType); intent.setAction(Intent.ACTION_GET_CONTENT); activity.startActivityForResult(intent, requestCode); }); ui.btnAudio.on("click", () => { let requestCode = audioRequestCode; let i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI); activity.startActivityForResult(i, requestCode); }); ui.btnVideo.on("click", () => { let fileType = "video/*"; let requestCode = videoRequestCode; var intent = new Intent(); intent.setType(fileType); intent.setAction(Intent.ACTION_GET_CONTENT); activity.startActivityForResult(intent, requestCode); }); ui.btnImgAndVideo.on("click", () => { let fileType = "video/* image/*"; let requestCode = imgAndVideoRequestCode; intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); intent.setType(fileType); activity.startActivityForResult(intent, requestCode); }); ui.btnAnyFile.on("click", () => { let fileType = "*/*"; let requestCode = imgAnyFileRequestCode; var intent = new Intent(); intent.setType(fileType); intent.setAction(Intent.ACTION_GET_CONTENT); activity.startActivityForResult(intent, requestCode); }); activity.getEventEmitter().on("activity_result", (requestCode, resultCode, data) => { if (resultCode != -1) { toastLog("没有选择文件!"); return false; } else { var uri = data.getData(); log("uri: %s", uri.toString()); let filepath = URIUtils_uriToFile(uri); log(filepath); var cr = context.getContentResolver(); switch (requestCode) { case imgRequestCode: log("图片"); var bitmap = BitmapFactory.decodeStream(cr.openInputStream(uri)); log("bitmap: %s", bitmap); ui.parentView.removeAllViews(); var childView = ui.inflate(<img></img>, ui.parentView); ui.parentView.addView(childView); childView.setImageBitmap(bitmap); break; case audioRequestCode: log("音频"); media.playMusic(filepath); toastLog("播放 10 秒钟"); setTimeout(function () { media.stopMusic(); toastLog("停止播放"); }, 10000); break; case videoRequestCode: log("视频"); ui.parentView.removeAllViews(); var childView = ui.inflate(<VideoView></VideoView>, ui.parentView); ui.parentView.addView(childView); childView.setVideoPath(filepath); childView.start(); break; case imgAndVideoRequestCode: log("图片或视频"); ui.parentView.removeAllViews(); let fileType = getFileType(filepath); if (fileType === "mp4") { log("是视频"); var childView = ui.inflate(<VideoView></VideoView>, ui.parentView); ui.parentView.addView(childView); childView.setVideoPath(filepath); childView.start(); } else { log("是图片"); var bitmap = BitmapFactory.decodeStream(cr.openInputStream(uri)); var childView = ui.inflate(<img></img>, ui.parentView); ui.parentView.addView(childView); childView.setImageBitmap(bitmap); } break; case imgAnyFileRequestCode: log("任意文件"); break; default: log("其他"); break; } } }); // ==============自定义函数================================ function getFileType(filePath) { // 查看文件头请使用软件: HexEditXP importClass("java.util.HashMap"); importClass(java.io.FileInputStream); importClass(java.lang.StringBuilder); let mFileTypes = new HashMap(); mFileTypes.put("ffd8ffe000104a464946", "jpg"); //JPEG (jpg) mFileTypes.put("89504e470d0a1a0a0000", "png"); //PNG (png) mFileTypes.put("47494638396126026f01", "gif"); //GIF (gif) mFileTypes.put("49492a00227105008037", "tif"); //TIFF (tif) mFileTypes.put("424d228c010000000000", "bmp"); //16色位图(bmp) mFileTypes.put("424d8240090000000000", "bmp"); //24位位图(bmp) mFileTypes.put("424d8e1b030000000000", "bmp"); //256色位图(bmp) mFileTypes.put("41433130313500000000", "dwg"); //CAD (dwg) mFileTypes.put("3c21444f435459504520", "html"); //HTML (html) mFileTypes.put("3c21646f637479706520", "htm"); //HTM (htm) mFileTypes.put("48544d4c207b0d0a0942", "css"); //css mFileTypes.put("696b2e71623d696b2e71", "js"); //js mFileTypes.put("7b5c727466315c616e73", "rtf"); //Rich Text Format (rtf) mFileTypes.put("38425053000100000000", "psd"); //Photoshop (psd) mFileTypes.put("46726f6d3a203d3f6762", "eml"); //Email [Outlook Express 6] (eml) mFileTypes.put("d0cf11e0a1b11ae10000", "doc"); //MS Excel 注意：word、msi 和 excel的文件头一样 mFileTypes.put("d0cf11e0a1b11ae10000", "vsd"); //Visio 绘图 mFileTypes.put("5374616E64617264204A", "mdb"); //MS Access (mdb) mFileTypes.put("252150532D41646F6265", "ps"); mFileTypes.put("255044462d312e350d0a", "pdf"); //Adobe Acrobat (pdf) mFileTypes.put("2e524d46000000120001", "rmvb"); //rmvb/rm相同 mFileTypes.put("464c5601050000000900", "flv"); //flv与f4v相同 mFileTypes.put("00000020667479706d70", "mp4"); mFileTypes.put("49443303000000002176", "mp3"); mFileTypes.put("000001ba210001000180", "mpg"); // mFileTypes.put("3026b2758e66cf11a6d9", "wmv"); //wmv与asf相同 mFileTypes.put("52494646e27807005741", "wav"); //Wave (wav) mFileTypes.put("52494646d07d60074156", "avi"); mFileTypes.put("4d546864000000060001", "mid"); //MIDI (mid) mFileTypes.put("504b0304140000000800", "zip"); mFileTypes.put("526172211a0700cf9073", "rar"); mFileTypes.put("235468697320636f6e66", "ini"); mFileTypes.put("504b03040a0000000000", "jar"); mFileTypes.put("4d5a9000030000000400", "exe"); //可执行文件 mFileTypes.put("3c25402070616765206c", "jsp"); //jsp文件 mFileTypes.put("4d616e69666573742d56", "mf"); //MF文件 mFileTypes.put("3c3f786d6c2076657273", "xml"); //xml文件 mFileTypes.put("494e5345525420494e54", "sql"); //xml文件 mFileTypes.put("7061636b616765207765", "java"); //java文件 mFileTypes.put("406563686f206f66660d", "bat"); //bat文件 mFileTypes.put("1f8b0800000000000000", "gz"); //gz文件 mFileTypes.put("6c6f67346a2e726f6f74", "properties"); //bat文件 mFileTypes.put("cafebabe0000002e0041", "class"); //bat文件 mFileTypes.put("49545346030000006000", "chm"); //bat文件 mFileTypes.put("04000000010000001300", "mxp"); //bat文件 mFileTypes.put("504b0304140006000800", "docx"); //docx文件 mFileTypes.put("d0cf11e0a1b11ae10000", "wps"); //WPS文字wps、表格et、演示dps都是一样的 mFileTypes.put("6431303a637265617465", "torrent"); mFileTypes.put("6D6F6F76", "mov"); //Quicktime (mov) mFileTypes.put("FF575043", "wpd"); //WordPerfect (wpd) mFileTypes.put("CFAD12FEC5FD746F", "dbx"); //Outlook Express (dbx) mFileTypes.put("2142444E", "pst"); //Outlook (pst) mFileTypes.put("AC9EBD8F", "qdf"); //Quicken (qdf) mFileTypes.put("E3828596", "pwl"); //Windows Password (pwl) mFileTypes.put("2E7261FD", "ram"); //Real Audio (ram) mFileTypes.put("null", null); //null function getFileType(filePath) { filePath = java.lang.String(filePath); let keySearch = getFileHeader(filePath); fileType = mFileTypes.get(keySearch); if (!fileType) { let keyList = mFileTypes.keySet().iterator(); let keySearchChild = keySearch.substring(10, keySearch.length); while (keyList.hasNext()) { let key = keyList.next(); key = java.lang.String(key); if (key.contains(keySearchChild)) { let fileSuffix = mFileTypes.get(key); return fileSuffix; } } } return fileType; } //获取文件头信息 function getFileHeader(filePath) { let is = null; let value = null; try { let is = new FileInputStream(filePath); let b = util.java.array("byte", 10); is.read(b, 0, b.length); value = bytesToHexString(b); } catch (e) { log(e); } finally { if (null != is) { try { is.close(); } catch (e) { log(e); } } } return value; } // arr =["0","0","0","18","66","74","79","70","6d","70"] function bytesToHexString(src) { let arr = []; let stringBuilder = new StringBuilder(); for (let i = 0; i < src.length; i++) { let v = src[i] & 0xff; let hv = java.lang.Integer.toHexString(v); // hv = java.lang.String() if (hv.length < 2) { stringBuilder.append("0"); } stringBuilder.append(hv); arr.push(hv); } return stringBuilder.toString(); } let fileType = getFileType(filePath); return fileType; } function URIUtils_uriToFile(uri) { //Source : https://www.cnblogs.com/panhouye/archive/2017/04/23/6751710.html var r = null, cursor, column_index, selection = null, selectionArgs = null, isKitKat = android.os.Build.VERSION.SDK_INT >= 19, docs; if (uri.getScheme().equalsIgnoreCase("content")) { if (isKitKat && android.provider.DocumentsContract.isDocumentUri(activity, uri)) { if (String(uri.getAuthority()) == "com.android.externalstorage.documents") { docs = String(android.provider.DocumentsContract.getDocumentId(uri)).split(":"); if (docs[0] == "primary") { return android.os.Environment.getExternalStorageDirectory() + "/" + docs[1]; } } else if (String(uri.getAuthority()) == "com.android.providers.downloads.documents") { uri = android.content.ContentUris.withAppendedId( android.net.Uri.parse("content://downloads/public_downloads"), parseInt(android.provider.DocumentsContract.getDocumentId(uri)) ); } else if (String(uri.getAuthority()) == "com.android.providers.media.documents") { docs = String(android.provider.DocumentsContract.getDocumentId(uri)).split(":"); if (docs[0] == "image") { uri = android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI; } else if (docs[0] == "video") { uri = android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI; } else if (docs[0] == "audio") { uri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; } selection = "_id=?"; selectionArgs = [docs[1]]; } } try { cursor = activity.getContentResolver().query(uri, ["_data"], selection, selectionArgs, null); if (cursor && cursor.moveToFirst()) { r = String(cursor.getString(cursor.getColumnIndexOrThrow("_data"))); } } catch (e) { log(e); } if (cursor) cursor.close(); return r; } else if (uri.getScheme().equalsIgnoreCase("file")) { return String(uri.getPath()); } return null; }
