FileBrowser UITableViewController, Delegate doesn't work - ios

Question

i decided to create a simple FileBrowser using UITableViewController with delegate which detect the file you chosen,
and i presented the UITableViewController like that
fbVC = [[FileBrowserTableViewController alloc] init];
fbVC.delegate = self;
fbVC.path = #"/";
navigationController = [[UINavigationController alloc] initWithRootViewController:fbVC];
navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
and added the delegate method in the other class
- (void)fileBrowser:(FileBrowserTableViewController *)fileBrowser didFinishWithFileURL:(NSURL *)fileURLPath {
NSString *extString = [fileURLPath absoluteString];
NSString *ext = [[extString pathExtension] lowercaseString];
NSString* theFileName = [[extString lastPathComponent] stringByDeletingPathExtension];
CFStringRef UTI = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (__bridge CFStringRef)fileURLPath.pathExtension, NULL);
CFStringRef MIMEType = UTTypeCopyPreferredTagWithClass(UTI, kUTTagClassMIMEType);
NSString *MIMETypeString = (__bridge NSString*)MIMEType;
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"FileBrowser" message:[NSString stringWithFormat:#"---URL : %# --FileName : %# --ext %#: mimetype : %#", fileURLPath, theFileName, fileURLPath.pathExtension, MIMETypeString] delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alertView show];
[self.companion sendDocumentsAtPath:fileURLPath fileName:[NSString stringWithFormat:#"[TGEnhancer]%#.%#",theFileName, fileURLPath.pathExtension] mimeType:MIMETypeString];
// [fileBrowser.navigationController popViewControllerAnimated:YES];
[fileBrowser.navigationController dismissViewControllerAnimated:YES completion:^{
NSLog(#"File Browser - Finished");
}];
}
but for some reason the delegate works only from the first page of UINavigationController
here is my .h file
#protocol FileBrowserTableViewControllerDelegate;
#interface FileBrowserTableViewController : UITableViewController
{
NSString *path;
NSMutableArray *files;
}
#property (nonatomic,retain) NSString *path;
#property (nonatomic,retain) NSMutableArray *files;
#property (nonatomic, strong) id<FileBrowserTableViewControllerDelegate> delegate;
#end
#protocol FileBrowserTableViewControllerDelegate <NSObject>
#optional
- (void)fileBrowser:(FileBrowserTableViewController *)fileBrowser didFinishWithFileURL:(NSURL *)fileURLPath;
- (void)fileBrowserDidCancel:(FileBrowserTableViewController *)fileBrowser;
#end
my didSelectRowAtIndexPath method here
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
File *aFile = [files objectAtIndex:indexPath.row];
if(aFile.isDirectory)
{
FileBrowserTableViewController *anotherViewController = [[FileBrowserTableViewController alloc] init];
anotherViewController.path = [path stringByAppendingPathComponent:aFile.name];
[self.navigationController pushViewController:anotherViewController animated:YES];
} else {
[self doOpenFileAtIndexPath:indexPath];
}
}
- (void)doOpenFileAtIndexPath:(NSIndexPath*)indexPath {
// File *aFile = [files objectAtIndex:indexPath.row];
[self openFileAtIndexPath:indexPath];
}
- (void)openFileAtIndexPath:(NSIndexPath*)indexPath
{
File *aFile = [files objectAtIndex:indexPath.row];
NSString *extension = [[aFile.name pathExtension] lowercaseString];
NSString *fullpath = [path stringByAppendingPathComponent:aFile.name];
NSURL *filePathUrl = [NSURL fileURLWithPath:fullpath];
UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:#"Type Existe"
message:[NSString stringWithFormat:#"--Name : %# Fullpath : %#", aFile.name, fullpath]
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
[self.delegate fileBrowser:self didFinishWithFileURL:filePathUrl];
[self.navigationController dismissViewControllerAnimated:YES completion:nil];
}
anyone can help me and tell me What exactly make delegate works (once) within UINavigationController ? specially from the first path only ( if i open another path and choose a file, it won't work.
Thanks

Answer 1

OPs i think i find the solution by myself, my mistake was in didSelectRowAtIndexPath method
i wasn't calling the delegate again.
here the code worked for me
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
File *aFile = [files objectAtIndex:indexPath.row];
if(aFile.isDirectory)
{
FileBrowserTableViewController *anotherViewController = [[FileBrowserTableViewController alloc] init];
anotherViewController.path = [path stringByAppendingPathComponent:aFile.name];
anotherViewController.delegate = self.delegate;
[self.navigationController pushViewController:anotherViewController animated:YES];
} else {
[self doOpenFileAtIndexPath:indexPath];
}
}
Thanks again.. hope it helps others..