getFile.java

   public static String getPath(final Uri uri) {
        try {
            final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
            if (isKitKat && DocumentsContract.isDocumentUri(ApplicationLoader.applicationContext, uri)) {
                if (isExternalStorageDocument(uri)) {
                    final String docId = DocumentsContract.getDocumentId(uri);
                    final String[] split = docId.split(":");
                    final String type = split[0];
                    if ("primary".equalsIgnoreCase(type)) {
                        return Environment.getExternalStorageDirectory() + "/" + split[1];
                    }
                } else if (isDownloadsDocument(uri)) {
                    final String id = DocumentsContract.getDocumentId(uri);
                    final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                    return getDataColumn(ApplicationLoader.applicationContext, contentUri, null, null);
                } else if (isMediaDocument(uri)) {
                    final String docId = DocumentsContract.getDocumentId(uri);
                    final String[] split = docId.split(":");
                    final String type = split[0];

                    Uri contentUri = null;
                    switch (type) {
                        case "image":
                            contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                            break;
                        case "video":
                            contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                            break;
                        case "audio":
                            contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                            break;
                    }

                    final String selection = "_id=?";
                    final String[] selectionArgs = new String[]{
                            split[1]
                    };

                    return getDataColumn(ApplicationLoader.applicationContext, contentUri, selection, selectionArgs);
                }
            } else if ("content".equalsIgnoreCase(uri.getScheme())) {
                return getDataColumn(ApplicationLoader.applicationContext, uri, null, null);
            } else if ("file".equalsIgnoreCase(uri.getScheme())) {
                return uri.getPath();
            }
        } catch (Exception e) {
            FileLog.e(e);
        }
        return null;
    }

    public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {

        final String column = "_data";
        final String[] projection = {
                column
        };
        try (Cursor cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null)) {
            if (cursor != null && cursor.moveToFirst()) {
                final int column_index = cursor.getColumnIndexOrThrow(column);
                String value = cursor.getString(column_index);
                if (value.startsWith("content://") || !value.startsWith("/") && !value.startsWith("file://")) {
                    return null;
                }
                return value;
            }
        } catch (Exception ignore) {

        }
        return null;
    }