Dropbox iOS Core SDK not downloading files - ios

Question

When I call the DBRestClient to download a file to a given path, the API does not call the loading functions.
For example:
- (void) downloadFiles:(NSMutableArray *)files
{
NSLog(#"%#", files);
itemsToBeDownloaded = [[NSMutableArray alloc] initWithArray:files];
restClient = [self restClient];
for (NSString *string in files)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"/Dropbox%#", string]];
[restClient loadFile:string intoPath:filePath];
}
}
Printing files returns (
"/Blank.pdf"
)
Printing string returns /Blank.pdf
Printing filePath returns /var/mobile/Applications/0C506400-7142-41E2-9F3D-0965985CED9E/Documents/Dropbox/Blank.pdf
So the function is called and knows the files and their path's to download.
However, when I call [restClient loadFile:string intoPath:filePath];, nothing happens. I have the delegate methods in:
- (void) restClient:(DBRestClient *)client loadedFile:(NSString *)destPath
{
NSLog(#"Called!");
}
- (void) restClient:(DBRestClient *)client loadedFile:(NSString *)destPath contentType:(NSString *)contentType
{
NSLog(#"Called!");
}
- (void) restClient:(DBRestClient *)client loadedFile:(NSString *)destPath contentType:(NSString *)contentType metadata:(DBMetadata *)metadata
{
NSLog(#"%#", destPath);
NSLog(#"%#", contentType);
NSLog(#"%#", metadata);
}
- (void) restClient:(DBRestClient *)client loadFileFailedWithError:(NSError *)error
{
NSLog(#"Error downloading file: %#", error);
}
No Called! statement is produced. It seems the RestClient is not downloading the data.
Another note: restClient = [self restClient]; does return a valid DBRestClient, so I know it is valid. However, the call to load the file is not being called.
Is there a specific reason the call to loadFile: is not being made? I have it loading Metadata just fine.
EDIT: a call to loadMetadata: at string does NOT call the loadMetadata delegate method.
EDIT 2: code below lists how the file's array is claimed:
- (void) downloadFiles
{
NSMutableArray *filesToDownload = [[NSMutableArray alloc] init];
for (int i = 0; i < [[itemsToDownload allKeys] count]; ++i)
{
for (NSString *string in [itemsToDownload objectForKey:[[itemsToDownload allKeys] objectAtIndex:i]])
{
[filesToDownload addObject:[NSString stringWithFormat:#"%#%#", [[itemsToDownload allKeys] objectAtIndex:i], string]];
}
}
[dropboxController downloadFiles:filesToDownload];
}

Answer 1

So I figured out the entire problem. Turns out, you can't call the rest client methods from the background thread, it's got to be called on a main thread.

Answer 2

First I thought you are calling wrong path in dropbox, but event then you should have receive error message.
If your restClient returns the delegate method even with wrong path your - (void)restClient:(DBRestClient*)client loadFileFailedWithError:(NSError*)error should have been called.
I doubt your restClient is initiated correctly.
in your .h file:
#import <DropboxSDK/DropboxSDK.h>
#property (nonatomic, strong) DBRestClient *restClient;
in.your.m file:
#import <DropboxSDK/DropboxSDK.h>
#synthesize restClient = _restClient;
- (DBRestClient *)restClient {
if (!_restClient) {
_restClient =
[[DBRestClient alloc] initWithSession:[DBSession sharedSession]];
_restClient.delegate = self;
}
return _restClient;
}
then try to call your
[[self restClient] loadFile:#"string" intoPath: #"pathstring" ];