autojs之选择文件

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;
}
————————————————
版权声明：本文为CSDN博主「牙叔教程」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/snailuncle2/article/details/114341101

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