Масштабирование и вращение UIImageView

Question

Я хотел бы увеличить и повернуть UIImageView. Вот мой код:

@synthesize immagine, velocita, locationManager, direzione; 

- (void)locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading{ 
    double degrees = newHeading.magneticHeading; 
    double radians = degrees * M_PI/180; 


    [UIView animateWithDuration:0.05 animations:^{ 
     self.immagine.transform = CGAffineTransformMakeRotation(-radians); 
    }]; 
} 

-(UIView *) viewForZoomingInScrollView:(UIScrollView *)scrollView { 
    return immagine; 
} 

- (void)viewDidLoad 
{ 
    locationManager = [[CLLocationManager alloc] init]; 
    locationManager.delegate=self; 
    locationManager.desiredAccuracy=kCLLocationAccuracyBestForNavigation; 

    [scrollView setDelegate:self]; 
    [scrollView setContentSize:CGSizeMake(320, 460)]; 

    immagine = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"mappa1"]]; 
    immagine.frame = CGRectMake(0, 0, 320, 460); 
    immagine.contentMode = UIViewContentModeScaleAspectFit; 

    [scrollView addSubview:immagine]; 

    locationManager.headingFilter = kCLHeadingFilterNone; 
    [locationManager startUpdatingHeading]; 

    [super viewDidLoad]; 
} 

Но когда я увеличиваю масштаб, вывод UIImageView из представления. Может кто-нибудь мне помочь? Заранее спасибо!

Answer 1

У меня есть проблемы, как это и эти две функции будут решить вашу проблему

- (void)twoFingerPinch:(UIPinchGestureRecognizer *)recognizer 
{  
    CGRect originalFrame=recognizer.view.frame; 
    CGRect newFrame=CGRectMake(originalFrame.origin.x, originalFrame.origin.y,   originalFrame.size.width*recognizer.scale, originalFrame.size.height*recognizer.scale); 
    if (newFrame.size.width>70&&newFrame.size.width<150) 
    { 
     recognizer.view.frame=newFrame; 
    } 
} 

- (void)twoFingersRotate:(UIRotationGestureRecognizer *)recognizer 
{ 
    [self.view bringSubviewToFront:[(UIRotationGestureRecognizer*)recognizer view]]; 

    if([(UIRotationGestureRecognizer*)recognizer state] == UIGestureRecognizerStateEnded) {  
     lastRotation = 0.0; 
     return; 
    } 

    CGFloat rotation = 0.0 - (lastRotation - [(UIRotationGestureRecognizer*)recognizer rotation]); 

    CGAffineTransform currentTransform = [(UIPinchGestureRecognizer*)recognizer view].transform; 
    CGAffineTransform newTransform = CGAffineTransformRotate(currentTransform,rotation); 

    [[(UIRotationGestureRecognizer*)recognizer view] setTransform:newTransform]; 

    lastRotation = [(UIRotationGestureRecognizer*)recognizer rotation]; 

    // recognizer.view.transform=CGAffineTransformMakeRotation(([recognizer rotation] * 180)/M_PI); 
}