UIImagePickerController After taking 5 images sequentially Terminates Application - iphone

Question

//This method Launches the picker to take the picture from camera.
-(IBAction)takeyouphoto:(id)sender
{
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
// Create image picker controller
UIImagePickerController *imagePicker2 = [[UIImagePickerController alloc] init];
// Set source to the camera
imagePicker2.sourceType = UIImagePickerControllerSourceTypeCamera;
// Delegate is self
imagePicker2.delegate = self;
// Allow editing of image ?
imagePicker2.allowsEditing= NO;
// Show image picker
[self presentModalViewController:imagePicker2 animated:YES];
}
}
//This is ImagePicker Delegate method.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
#try {
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:(NSString *)kUTTypeImage])
{
UIImage *resultimage=nil;
//I am using iOS5, so we can not use NSAutoreleasePool
resultimage=[info objectForKey:UIImagePickerControllerOriginalImage] ;
//This Launches the HUD (Activity Indicator) because ImagePicker ususally takes 5
//seconds to launch image.
[self showHUD:resultimage];
}
}
[picker dismissModalViewControllerAnimated:YES];
}
-(void)showHUD:(UIImage *)resultimage
{
[[Singleton sharedmysingleton] stoptimer];
HUD = [[MBProgressHUD alloc] initWithView:self.navigationController.view];
[self.navigationController.view addSubview:HUD];
HUD.delegate = self;
HUD.labelText = #"Loading Image";
//HUD.detailsLabelText=#"Loading";
//Below call on showWhileExecuting of the MBProgressHuD class has its own NSAutoreleasePool
//Defined in MGProgressHUD class. it also runs the method showimageincell; in separate
//thread.
[HUD showWhileExecuting:#selector(showimagesincell:) onTarget:self withObject:resultimage animated:YES];
}
-(void)showimagesincell:(UIImage *)image
{
appDelegate.tabbarcontroller.tabBar.userInteractionEnabled=NO;
NSError *error;
UIImage *resultImage=[self scale:image toSize:image.size];
//UIImage *resultImage = [[UIImage alloc] initWithCGImage:imgRefCrop scale:1.0 orientation:resultimage.imageOrientation];
//resultimage.imageOrientation
NSData *imagedata=UIImageJPEGRepresentation(resultImage, 0.7);//(resultImage);
UIImage *smallimage=[self scale:image toSize:CGSizeMake(100, 100)];
NSData *smallimagedata=UIImageJPEGRepresentation(smallimage, 0.7);
/* NSString *imagetypeid=[Fetchsavefromcoredata getImagenameandImageidfromdatabase:#"Mobile_ImageType" attributename:#"imageType" predicate:imagetypetxtfield.text];
//write image to document directory
NSString *localImagedir=[photodirpath stringByAppendingPathComponent:selectedvinnumber];
NSString *datetime=[Singleton imagedateandtime];
NSString *imagename=[NSString stringWithFormat:#"%#_%#.png",imagetypeid,datetime];
NSString *localImagePath=[localImagedir stringByAppendingPathComponent:imagename];
[imagedata writeToFile:localImagePath atomically:YES];*/
[self performSelectorOnMainThread:#selector(updatetableview) withObject:nil waitUntilDone:NO];
}
-(void)updatetableview
{
[[Singleton sharedmysingleton] starttimer];
[self viewWillAppear:YES];
}
-(UIImage *)scale:(UIImage *)image toSize:(CGSize)size
{
UIGraphicsBeginImageContext(size);
[image drawInRect:CGRectMake(0, 0, size.width, size.height)];
UIImage *scaledImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return scaledImage;
}
//Above is all my code, I have tried to find it on diffrent forums but I have not fixed it yet.
//Any help will be appreciated. Thanks in advance

Answer 1

The white screen issue is fixed by keeping the image returned by the UIIMagePickerController delegate method into an #autoreleasepool (for iOS5). It solved the problem, we can not use NSAutoreleasePool in ARC code.
Here the line of code in didFinishPickingMediaWithInfo: delegate method
UIImage *resultimage=nil;
#autoreleasepool
{
//I am using iOS5, so we can not use NSAutoreleasePool
resultimage=[info objectForKey:UIImagePickerControllerOriginalImage] ;
}
Below the UIImagePickerController delegate method after implementing #autoreleasepool
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
#try {
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:(NSString *)kUTTypeImage])
{
UIImage *resultimage=nil;
#autoreleasepool
{
//I am using iOS5, so we can not use NSAutoreleasePool
resultimage=[info objectForKey:UIImagePickerControllerOriginalImage] ;
}
//This Launches the HUD (Activity Indicator) because ImagePicker ususally takes 5
//seconds to launch image.
[self showHUD:resultimage];
}
}
[picker dismissModalViewControllerAnimated:YES];
}