Java Code Examples for android.provider.OpenableColumns#DISPLAY_NAME

private static String getFileDisplayNameFromUri(Context context, Uri uri) {
  String scheme = uri.getScheme();

  if (ContentResolver.SCHEME_FILE.equals(scheme)) {
    return uri.getLastPathSegment();
  } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {

    String[] projection = {OpenableColumns.DISPLAY_NAME};

    Cursor cursor = null;
    try {
      cursor = context.getContentResolver().query(uri, projection, null, null, null);
      if (cursor != null && cursor.moveToFirst()) {
        return cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
      }
    } finally {
      if (cursor != null) {
        cursor.close();
      }
    }
  }

  // This will only happen if the Uri isn't either SCHEME_CONTENT or SCHEME_FILE, so we assume
  // it already represents the file's name.
  return uri.toString();
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 *
 */
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
        String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
                    String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 *
 */
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
        String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 */
@Override public Cursor query(Uri uri, String[] projection, String selection,
    String[] selectionArgs, String sortOrder) {
  // ContentProvider has already checked granted permissions
  final File file = mStrategy.getFileForUri(uri);

  if (projection == null) {
    projection = COLUMNS;
  }

  String[] cols = new String[projection.length];
  Object[] values = new Object[projection.length];
  int i = 0;
  for (String col : projection) {
    if (OpenableColumns.DISPLAY_NAME.equals(col)) {
      cols[i] = OpenableColumns.DISPLAY_NAME;
      values[i++] = file.getName();
    } else if (OpenableColumns.SIZE.equals(col)) {
      cols[i] = OpenableColumns.SIZE;
      values[i++] = file.length();
    }
  }

  cols = copyOf(cols, i);
  values = copyOf(values, i);

  final MatrixCursor cursor = new MatrixCursor(cols, 1);
  cursor.addRow(values);
  return cursor;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 *
 */
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
        String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 *
 */
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
        String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

@Nullable
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
    // Code from FileProvider
    File file = new File(uri.getPath());
    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];

    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 *
 */
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
        String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
        String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri           A content URI returned by {@link #getUriForFile}.
 * @param projection    The list of columns to put into the {@link Cursor}. If null all columns are
 *                      included.
 * @param selection     Selection criteria to apply. If null then all data that matches the content
 *                      URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 *                      the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 *                      right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 *                      <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 *                      values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder     A {@link java.lang.String} containing the column name(s) on which to sort
 *                      the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 */
@Override
public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        } else if (COLUMN_LAST_MODIFIED.equals(col)) {
            cols[i] = COLUMN_LAST_MODIFIED;
            values[i++] = file.lastModified();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
    final File file = mStrategy.getFileForUri(uri);
    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 *
 */
@Override
public Cursor query(Uri uri, String[] projection, String selection,
                    String[] selectionArgs,
                    String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);

    if (projection == null) {
        projection = COLUMNS;
    }

    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }

    cols = copyOf(cols, i);
    values = copyOf(values, i);

    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}
 

@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
	int matchResult = URI_MATCHER.match(uri);
	switch (URI_MATCHER.match(uri)) {
		case URI_UPDATES:
		case URI_DOWNLOADS:
		case URI_SHARE: {
			if (projection == null) {
				projection = PROJECTION;
			}
			OUTER: for (String column : projection) {
				for (String allowedColumn : PROJECTION) {
					if (StringUtils.equals(column, allowedColumn)) {
						continue OUTER;
					}
				}
				throw new SQLiteException("No such column: " + column);
			}
			MatrixCursor cursor = new MatrixCursor(projection);
			File file = null;
			switch (matchResult) {
				case URI_UPDATES: {
					file = getUpdatesFile(getContext(), uri.getLastPathSegment());
					break;
				}
				case URI_DOWNLOADS: {
					file = downloadsFile != null ? downloadsFile.file : null;
					break;
				}
				case URI_SHARE: {
					file = shareFile != null ? shareFile.file : null;
					break;
				}
			}
			if (file != null) {
				Object[] values = new Object[projection.length];
				for (int i = 0; i < projection.length; i++) {
					switch (projection[i]) {
						case OpenableColumns.DISPLAY_NAME: {
							values[i] = file.getName();
							break;
						}
						case OpenableColumns.SIZE: {
							values[i] = file.length();
							break;
						}
					}
				}
				cursor.addRow(values);
			}
			return cursor;
		}
		default: {
			throw new IllegalArgumentException("Unknown URI: " + uri);
		}
	}
}
 

@Nullable
@Override
public Cursor query(@NonNull Uri uri, String[] projection,
    String selection, String[] selectionArgs, String sortOrder) {
  final UniFile file = getFileForUri(uri);
  if (file == null) {
    return null;
  }

  if (projection == null) {
    projection = COLUMNS;
  }

  String[] cols = new String[projection.length];
  Object[] values = new Object[projection.length];
  int i = 0;
  for (String col : projection) {
    if (OpenableColumns.DISPLAY_NAME.equals(col)) {
      cols[i] = OpenableColumns.DISPLAY_NAME;
      values[i++] = file.getName();
    } else if (OpenableColumns.SIZE.equals(col)) {
      cols[i] = OpenableColumns.SIZE;
      values[i++] = file.length();
    } else if (MediaStore.MediaColumns.DATA.equals(col)) {
      Uri originUri = file.getUri();
      if (ContentResolver.SCHEME_FILE.equals(originUri.getScheme())) {
        cols[i] = MediaStore.MediaColumns.DATA;
        values[i++] = file.getUri().getPath();
      } else {
        // TODO handle document tree url
      }
    }
  }

  cols = copyOf(cols, i);
  values = copyOf(values, i);

  final MatrixCursor cursor = new MatrixCursor(cols, 1);
  cursor.addRow(values);
  return cursor;
}
 

@NonNull
static FileDetails getFileDetails(@NonNull final Context context, @NonNull Uri uri, @Nullable String filePath) {
    final ContentResolver resolver = context.getContentResolver();
    String fname = null;
    long fsize = 0L;
    int orientation = -1;

    FileDetails result = new FileDetails();

    String mimeType = resolver.getType(uri);
    if (mimeType == null) {
        mimeType = UiUtils.getMimeType(uri);
    }
    result.mimeType = mimeType;

    String[] projection;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
        projection = new String[]{OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE, MediaStore.MediaColumns.ORIENTATION};
    } else {
        projection = new String[]{OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE};
    }
    try (Cursor cursor = resolver.query(uri, projection, null, null, null)) {
        if (cursor != null && cursor.moveToFirst()) {
            fname = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
            fsize = cursor.getLong(cursor.getColumnIndex(OpenableColumns.SIZE));
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                int idx = cursor.getColumnIndex(MediaStore.MediaColumns.ORIENTATION);
                if (idx >= 0) {
                    orientation = cursor.getInt(idx);
                }
            }
        }
    }
    // In degrees.
    result.imageOrientation = orientation;

    // Still no size? Try opening directly.
    if (fsize <= 0 || orientation < 0) {
        String path = filePath != null ? filePath : UiUtils.getContentPath(context, uri);
        if (path != null) {
            result.filePath = path;

            File file = new File(path);
            if (fname == null) {
                fname = file.getName();
            }
            fsize = file.length();
        } else {
            try {
                DocumentFile df = DocumentFile.fromSingleUri(context, uri);
                if (df != null) {
                    fname = df.getName();
                    fsize = df.length();
                }
            } catch (SecurityException ignored) {}
        }
    }

    result.fileName = fname;
    result.fileSize = fsize;

    return result;
}
 

/**
 * Use a content URI returned by
 * {@link #getUriForFile(Context, String, File) getUriForFile()} to get information about a file
 * managed by the FileProvider.
 * FileProvider reports the column names defined in {@link android.provider.OpenableColumns}:
 * <ul>
 * <li>{@link android.provider.OpenableColumns#DISPLAY_NAME}</li>
 * <li>{@link android.provider.OpenableColumns#SIZE}</li>
 * </ul>
 * For more information, see
 * {@link ContentProvider#query(Uri, String[], String, String[], String)
 * ContentProvider.query()}.
 *
 * @param uri A content URI returned by {@link #getUriForFile}.
 * @param projection The list of columns to put into the {@link Cursor}. If null all columns are
 * included.
 * @param selection Selection criteria to apply. If null then all data that matches the content
 * URI is returned.
 * @param selectionArgs An array of {@link java.lang.String}, containing arguments to bind to
 * the <i>selection</i> parameter. The <i>query</i> method scans <i>selection</i> from left to
 * right and iterates through <i>selectionArgs</i>, replacing the current "?" character in
 * <i>selection</i> with the value at the current position in <i>selectionArgs</i>. The
 * values are bound to <i>selection</i> as {@link java.lang.String} values.
 * @param sortOrder A {@link java.lang.String} containing the column name(s) on which to sort
 * the resulting {@link Cursor}.
 * @return A {@link Cursor} containing the results of the query.
 *
 */
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
                    String sortOrder) {
    // ContentProvider has already checked granted permissions
    final File file = mStrategy.getFileForUri(uri);
    if (projection == null) {
        projection = COLUMNS;
    }
    String[] cols = new String[projection.length];
    Object[] values = new Object[projection.length];
    int i = 0;
    for (String col : projection) {
        if (OpenableColumns.DISPLAY_NAME.equals(col)) {
            cols[i] = OpenableColumns.DISPLAY_NAME;
            values[i++] = file.getName();
        } else if (OpenableColumns.SIZE.equals(col)) {
            cols[i] = OpenableColumns.SIZE;
            values[i++] = file.length();
        }
    }
    cols = copyOf(cols, i);
    values = copyOf(values, i);
    final MatrixCursor cursor = new MatrixCursor(cols, 1);
    cursor.addRow(values);
    return cursor;
}