- * 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.
- */
- 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);
- }
- } finally {
- if (cursor != null)
- cursor.close();
- }
- return null;
- }
-
- /**
- * @param uri The Uri to check.
- * @return Whether the Uri authority is ExternalStorageProvider.
- */
- 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.
- */
- 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.
- */
- 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());
- }
-
- /**
- *
- * @param uri The Uri to check.
- * @return Whether the Uri is from a content provider as kind "content://..."
- */
- public static boolean isContentDocument(Uri uri) {
- return uri.toString().startsWith(URI_CONTENT_SCHEME);
- }
-
- /**