FileUtils.java

public class FileUtil {

    public static File getPickedPictureFile(Context context, Uri selectedImage) {

        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, selectedImage)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(selectedImage)) {
                final String docId = DocumentsContract.getDocumentId(selectedImage);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("primary".equalsIgnoreCase(type)) {
                    return new File(Environment.getExternalStorageDirectory() + "/" + split[1]);
                }

                // TODO handle non-primary volumes
            }
            // DownloadsProvider
            else if (isDownloadsDocument(selectedImage)) {

                final String id = DocumentsContract.getDocumentId(selectedImage);
                final Uri contentUri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

                return new File(getDataColumn(context, contentUri, null, null));
            }
            // MediaProvider
            else if (isMediaDocument(selectedImage)) {
                final String docId = DocumentsContract.getDocumentId(selectedImage);
                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 new File(getDataColumn(context, contentUri, selection, selectionArgs));
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(selectedImage.getScheme())) {
            return new File(getDataColumn(context, selectedImage, null, null));
        }
        // File
        else if ("file".equalsIgnoreCase(selectedImage.getScheme())) {
            return new File(selectedImage.getPath());
        }

        return null;

    }

    private 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);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }
}