iPhone: UIImagePickerController Randomly Fails to Take Picture

Posted by pion on Stack Overflow See other posts from Stack Overflow or by pion
Published on 2010-04-11T20:52:14Z Indexed on 2010/04/11 21:23 UTC
Read the original article Hit count: 472

I use a UIPickerViewController to take picture. It works 80% but seemingly at random it fails to take a picture. In tracing the code I found out that it occasionally goes to

-PinRecordNewTableViewController:viewDidUnload. 

That is where it fails because it set nil to all ivars.

@interface PinRecordNewTableViewController : UITableViewController {
}
... 
@implementation PinRecordNewTableViewController
...
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
...
        PinRecordNewPicture *pinRecordNewPicture = [[PinRecordNewPicture alloc] initWithNibName:@"PinRecordNewPicture" bundle:nil];
        pinRecordNewPicture.delegate = self;
        [self.navigationController pushViewController:pinRecordNewPicture animated:YES];    
        [pinRecordNewPicture release];  
...             
}
@interface PinRecordNewPicture : UIViewController 
...
@implementation PinRecordNewPicture
...
- (void)picturePicker:(UIImagePickerControllerSourceType)theSource {

UIImagePickerController *picker = [[UIImagePickerController alloc] init];

picker.delegate = self;
picker.sourceType = theSource;
picker.allowsEditing = YES;

[self presentModalViewController:picker animated:YES];

[picker release];
}

- (IBAction) takePicture:(id)sender {

UIImagePickerControllerSourceType source = UIImagePickerControllerSourceTypeCamera;

    if ([UIImagePickerController isSourceTypeAvailable:source]) {

       [self picturePicker:source];

    }

What did I do wrong? Did I miss something that causes it to behave "randomly"?

Thanks in advance for your help.

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