FileUtils
public class FileUtils {
private static final int BYTE_SIZE = 1024;
private static final String POSTFIX_JPG = ".jpg";
private static final String POSTFIX_MP4 = ".mp4";
private static final String POSTFIX_AMR = ".amr";
/**
* @param context
* @param chooseMode
* @param format
* @param outCameraDirectory
* @return
*/
public static File createCameraFile(Context context, int chooseMode, String fileName, String format, String outCameraDirectory) {
return createMediaFile(context, chooseMode, fileName, format, outCameraDirectory);
}
/**
* 创建文件
*
* @param context
* @param chooseMode
* @param fileName
* @param format
* @param outCameraDirectory
* @return
*/
private static File createMediaFile(Context context, int chooseMode, String fileName, String format, String outCameraDirectory) {
return createOutFile(context, chooseMode, fileName, format, outCameraDirectory);
}
/**
* 创建文件
*
* @param ctx 上下文
* @param chooseMode 选择模式
* @param fileName 文件名
* @param format 文件格式
* @param outCameraDirectory 输出目录
* @return
*/
private static File createOutFile(Context ctx, int chooseMode, String fileName, String format, String outCameraDirectory) {
Context context = ctx.getApplicationContext();
File folderDir;
if (TextUtils.isEmpty(outCameraDirectory)) {
// 外部没有自定义拍照存储路径使用默认
File rootDir;
if (TextUtils.equals(Environment.MEDIA_MOUNTED, Environment.getExternalStorageState())) {
rootDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
folderDir = new File(rootDir.getAbsolutePath() + File.separator + PictureMimeType.CAMERA + File.separator);
} else {
rootDir = getRootDirFile(context, chooseMode);
folderDir = new File(rootDir.getAbsolutePath() + File.separator);
}
if (!rootDir.exists()) {
rootDir.mkdirs();
}
} else {
// 自定义存储路径
folderDir = new File(outCameraDirectory);
if (!Objects.requireNonNull(folderDir.getParentFile()).exists()) {
folderDir.getParentFile().mkdirs();
}
}
if (!folderDir.exists()) {
folderDir.mkdirs();
}
boolean isOutFileNameEmpty = TextUtils.isEmpty(fileName);
switch (chooseMode) {
case SelectMimeType.TYPE_VIDEO:
String newFileVideoName = isOutFileNameEmpty ? DateUtils.getCreateFileName("VID_") + POSTFIX_MP4 : fileName;
return new File(folderDir, newFileVideoName);
case SelectMimeType.TYPE_AUDIO:
String newFileAudioName = isOutFileNameEmpty ? DateUtils.getCreateFileName("AUD_") + POSTFIX_AMR : fileName;
return new File(folderDir, newFileAudioName);
default:
String suffix = TextUtils.isEmpty(format) ? POSTFIX_JPG : format;
String newFileImageName = isOutFileNameEmpty ? DateUtils.getCreateFileName("IMG_") + suffix : fileName;
return new File(folderDir, newFileImageName);
}
}
/**
* 文件根目录
*
* @param context
* @param type
* @return
*/
private static File getRootDirFile(Context context, int type) {
String fileDirPath = FileDirMap.getFileDirPath(context, type);
return new File(fileDirPath);
}
/**
* TAG for log messages.
*/
static final String TAG = "PictureFileUtils";
private PictureFileUtils() {
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
* @author paulburke
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
* @author paulburke
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
* @author paulburke
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
* @author paulburke
*/
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} catch (IllegalArgumentException ex) {
Log.i(TAG, String.format(Locale.getDefault(), "getDataColumn: _data - [%s]", ex.getMessage()));
} finally {
if (cursor != null) {
cursor.close();
}
}
return "";
}
/**
* Get a file path from a Uri. This will get the the path for Storage Access
* Framework Documents, as well as the _data field for the MediaStore and
* other file-based ContentProviders.<br>
* <br>
* Callers should check whether the path is local before assuming it
* represents a local file.
*
* @param context The context.
* @param uri The Uri to query.
* @author paulburke
*/
@SuppressLint("NewApi")
public static String getPath(final Context ctx, final Uri uri) {
Context context = ctx.getApplicationContext();
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
if (SdkVersionUtils.isQ()) {
return context.getExternalFilesDir(Environment.DIRECTORY_PICTURES) + "/" + split[1];
} else {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
}
// TODO handle non-primary volumes
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), ValueOf.toLong(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[]{
split[1]
};
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri)) {
return uri.getLastPathSegment();
}
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return "";
}
/**
* Copies one file into the other with the given paths.
* In the event that the paths are the same, trying to copy one file to the other
* will cause both files to become null.
* Simply skipping this step if the paths are identical.
*/
public static void copyFile(@NonNull String pathFrom, @NonNull String pathTo) {
if (pathFrom.equalsIgnoreCase(pathTo)) {
return;
}
FileChannel outputChannel = null;
FileChannel inputChannel = null;
try {
inputChannel = new FileInputStream(pathFrom).getChannel();
outputChannel = new FileOutputStream(pathTo).getChannel();
inputChannel.transferTo(0, inputChannel.size(), outputChannel);
} catch (Exception e) {
e.printStackTrace();
} finally {
close(inputChannel);
close(outputChannel);
}
}
/**
* 复制文件
*
* @param is 文件输入流
* @param os 文件输出流
* @return
*/
public static boolean writeFileFromIS(final InputStream is, final OutputStream os) {
OutputStream osBuffer = null;
BufferedInputStream isBuffer = null;
try {
isBuffer = new BufferedInputStream(is);
osBuffer = new BufferedOutputStream(os);
byte[] data = new byte[BYTE_SIZE];
for (int len; (len = isBuffer.read(data)) != -1; ) {
os.write(data, 0, len);
}
os.flush();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
close(isBuffer);
close(osBuffer);
}
}
/**
* 创建视频缩略图地址
*
* @return
*/
public static String getVideoThumbnailDir(Context context) {
File externalFilesDir = context.getExternalFilesDir("");
File customFile = new File(externalFilesDir.getAbsolutePath(), "VideoThumbnail");
if (!customFile.exists()) {
customFile.mkdirs();
}
return customFile.getAbsolutePath() + File.separator;
}
/**
* set empty PictureSelector Cache
* Use {@link PictureCacheManager}
*
* @param mContext
* @param type image or video ...
*/
@Deprecated
public static void deleteCacheDirFile(Context mContext, int type) {
File cutDir = mContext.getExternalFilesDir(type == SelectMimeType.ofImage()
? Environment.DIRECTORY_PICTURES : Environment.DIRECTORY_MOVIES);
if (cutDir != null) {
File[] files = cutDir.listFiles();
if (files != null) {
for (File file : files) {
if (file.isFile()) {
file.delete();
}
}
}
}
}
/**
* set empty PictureSelector Cache
* Use {@link PictureCacheManager}
*
* @param context
* @param type image、video、audio ...
*/
@Deprecated
public static void deleteAllCacheDirFile(Context context) {
File dirPictures = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
if (dirPictures != null) {
File[] files = dirPictures.listFiles();
if (files != null) {
for (File file : files) {
if (file.isFile()) {
file.delete();
}
}
}
}
File dirMovies = context.getExternalFilesDir(Environment.DIRECTORY_MOVIES);
if (dirMovies != null) {
File[] files = dirMovies.listFiles();
if (files != null) {
for (File file : files) {
if (file.isFile()) {
file.delete();
}
}
}
}
File dirMusic = context.getExternalFilesDir(Environment.DIRECTORY_MUSIC);
if (dirMusic != null) {
File[] files = dirMusic.listFiles();
if (files != null) {
for (File file : files) {
if (file.isFile()) {
file.delete();
}
}
}
}
}
/**
* 生成uri
*
* @param context
* @param cameraFile
* @return
*/
public static Uri parUri(Context context, File cameraFile) {
Uri imageUri;
String authority = context.getPackageName() + ".luckProvider";
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M) {
//通过FileProvider创建一个content类型的Uri
imageUri = FileProvider.getUriForFile(context, authority, cameraFile);
} else {
imageUri = Uri.fromFile(cameraFile);
}
return imageUri;
}
/**
* 根据类型创建文件名
*
* @param context
* @param mineType
* @param customFileName
* @return
*/
public static String createFilePath(Context context, String mineType, String customFileName) {
File filesDir;
String prefixTAG;
String suffix = PictureMimeType.getLastSourceSuffix(mineType);
if (PictureMimeType.isHasVideo(mineType)) {
// 视频
prefixTAG = "VID_";
filesDir = getRootDirFile(context, SelectMimeType.TYPE_VIDEO);
} else if (PictureMimeType.isHasAudio(mineType)) {
// 音频
prefixTAG = "AUD_";
filesDir = getRootDirFile(context, SelectMimeType.TYPE_AUDIO);
} else {
// 图片
prefixTAG = "IMG_";
filesDir = getRootDirFile(context, SelectMimeType.TYPE_IMAGE);
}
return filesDir.getPath() + File.separator + (TextUtils.isEmpty(customFileName) ? DateUtils.getCreateFileName(prefixTAG) + suffix : customFileName);
}
/**
* 判断文件是否存在
*
* @param path
* @return
*/
public static boolean isImageFileExists(String path) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
options.inSampleSize = 2;
BitmapFactory.decodeFile(path, options);
return options.outWidth > 0 && options.outHeight > 0;
}
/**
* 判断文件是否存在
*
* @param path
* @return
*/
public static boolean isFileExists(String path) {
return !TextUtils.isEmpty(path) && new File(path).exists();
}
/**
* Size of byte to fit size of memory.
* <p>to three decimal places</p>
*
* @param byteSize Size of byte.
* @param precision The precision
* @return fit size of memory
*/
@SuppressLint("DefaultLocale")
public static String formatFileSize(final long byteSize) {
if (byteSize < 0) {
throw new IllegalArgumentException("byteSize shouldn't be less than zero!");
} else if (byteSize < FileSizeUnit.KB) {
String format = String.format("%." + 2 + "f", (double) byteSize);
double num = ValueOf.toDouble(format);
long round = Math.round(num);
return (round - num == 0 ? round : format) + "B";
} else if (byteSize < FileSizeUnit.MB) {
String format = String.format("%." + 2 + "f", (double) byteSize / FileSizeUnit.KB);
double num = ValueOf.toDouble(format);
long round = Math.round(num);
return (round - num == 0 ? round : format) + "KB";
} else if (byteSize < FileSizeUnit.GB) {
String format = String.format("%." + 2 + "f", (double) byteSize / FileSizeUnit.MB);
double num = ValueOf.toDouble(format);
long round = Math.round(num);
return (round - num == 0 ? round : format) + "MB";
} else {
String format = String.format("%." + 2 + "f", (double) byteSize / FileSizeUnit.GB);
double num = ValueOf.toDouble(format);
long round = Math.round(num);
return (round - num == 0 ? round : format) + "GB";
}
}
/**
* Size of byte to fit size of memory.
* <p>to three decimal places</p>
*
* @param byteSize Size of byte.
* @param precision The precision
* @return fit size of memory
*/
@SuppressLint("DefaultLocale")
public static String formatAccurateUnitFileSize(final long byteSize) {
String unit = "";
double newByteSize;
if (byteSize < 0) {
throw new IllegalArgumentException("byteSize shouldn't be less than zero!");
} else if (byteSize < FileSizeUnit.ACCURATE_KB) {
newByteSize = (double) byteSize;
} else if (byteSize < FileSizeUnit.ACCURATE_MB) {
unit = "KB";
newByteSize = (double) byteSize / FileSizeUnit.ACCURATE_KB;
} else if (byteSize < FileSizeUnit.ACCURATE_GB) {
unit = "MB";
newByteSize = (double) byteSize / FileSizeUnit.ACCURATE_MB;
} else {
unit = "GB";
newByteSize = (double) byteSize / FileSizeUnit.ACCURATE_GB;
}
String format = String.format(new Locale("zh"), "%." + 2 + "f", newByteSize);
return (Math.round(ValueOf.toDouble(format)) - ValueOf.toDouble(format) == 0 ? Math.round(ValueOf.toDouble(format)) : format) + unit;
}
@SuppressWarnings("ConstantConditions")
public static void close(@Nullable Closeable c) {
// java.lang.IncompatibleClassChangeError: interface not implemented
if (c instanceof Closeable) {
try {
c.close();
} catch (Exception e) {
// silence
}
}
}
}