public ImageResult getFolderImageContents(String folderPath) {
List<ImageInfo> images = new ArrayList<>();
String cursor = null;
try {
DbxClientV2 dbxClient = dropboxClientProvider.getDropboxClient();
ListFolderResult results = dbxClient.files().listFolder(folderPath);
for (Metadata metadata : results.getEntries()) {
if (metadata instanceof FileMetadata) {
FileMetadata fileMetadata = (FileMetadata) metadata;
String fileName = fileMetadata.getName();
String extension = fileName.substring(fileName.lastIndexOf('.') + 1).toLowerCase();
if (isImageFile(extension)) {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
dbxClient.files().getThumbnailBuilder(fileMetadata.getPathLower())
.withFormat(ThumbnailFormat.PNG)
.withSize(ThumbnailSize.W64H64)
.download(outputStream);
byte[] thumbnailData = outputStream.toByteArray();
images.add(new ImageInfo(fileMetadata.getName(), thumbnailData, fileMetadata.getPathDisplay()));
}
}
}
if (results.getHasMore()) {
cursor = results.getCursor();
}
} catch (Exception e) {
e.printStackTrace();
}
return new ImageResult(images, cursor);
}
