How to Display photos from NSDocumentDirectory - iphone

Question

I'm developing this application on an iPad.
These codes for a 'Browse' button allows the user to view the photos from the iPad's gallery.
Code:
- (IBAction) BrowsePhoto:(id)sender
{
UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.delegate = self;
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:imagePickerController];
[popover setPopoverContentSize:CGSizeMake(320,320)];
[popover presentPopoverFromRect:CGRectMake(200,200,-100,-100) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
self.popoverController = popover;
[imagePickerController release];
}
When a photo is selected, it will be stored into the application using NSDocumentDirectory.
Code:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)selectedImage editingInfo:(NSDictionary *)editingInfo
{
[self.popoverController dismissPopoverAnimated:YES];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDir stringByAppendingPathComponent:#"SavedImage.png"];
UIImage *image = imageView.image;
NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:NO];
}
Now i have to include a 'Display' button on the first screen.
When tapped on the button, it will show a new view (modal view controller) and displays all the photos in thumbnails/tableview from the NSDocumentDirectory.
When a photo is selected, it will be deleted from the NSDocumentDirectory.
How can i do this?

Answer 1

To Delete any file in NSDocumentDirectory in iPhone, U can use this code,
NSArray *sysPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES );
NSString *docDirectory = [sysPaths objectAtIndex:0];
NSString *filePath2 = [NSString stringWithFormat:#"%#/%#", docDirectory,#"SavedImage.png"];
NSFileManager *fileManager = [NSFileManager defaultManager];
BOOL exist =[fileManager fileExistsAtPath:filePath2];
if(exist)
[fileManager removeItemAtPath:filePath2 error:NULL];