ScrollView Image ZOOM!

[starwarsdevwookie59]

I have a scroll view that displays an image. The code below is in the viewdidload section. How in the world do i get it to zoom in? I've tried so many different tutorials and im lost. Anyone know how to zoom on this? Code would be great! Thanks so much!

[scrollView2 setBackgroundColor:[UIColor blackColor]];
[scrollView2 setCanCancelContentTouches:NO];
scrollView2.clipsToBounds = YES;
scrollView2.indicatorStyle = UIScrollViewIndicatorStyleWhite;
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image0.png"]];
[scrollView2 addSubview:imageView];
[scrollView2 setContentSize:CGSizeMake(imageView.frame.size.wid th, imageView.frame.size.height)];
[scrollView2 setScrollEnabled:YES];
[imageView release];

[talk2chris]

You need to use the delegate method of scrollview to do the zoom action.

[smsawant]

Originally Posted by starwarsdevwookie59

I have a scroll view that displays an image. The code below is in the viewdidload section. How in the world do i get it to zoom in? I've tried so many different tutorials and im lost. Anyone know how to zoom on this? Code would be great! Thanks so much!

[scrollView2 setBackgroundColor:[UIColor blackColor]];
[scrollView2 setCanCancelContentTouches:NO];
scrollView2.clipsToBounds = YES;
scrollView2.indicatorStyle = UIScrollViewIndicatorStyleWhite;
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image0.png"]];
[scrollView2 addSubview:imageView];
[scrollView2 setContentSize:CGSizeMake(imageView.frame.size.wid th, imageView.frame.size.height)];
[scrollView2 setScrollEnabled:YES];
[imageView release];

You need this scroll view delegate UIScrollViewDelegate

this is you .h file

	IBOutlet UIScrollView *myScrollView;
	UIImageView *myImage;

this is your .m file.

	UIImageView *tempImageView = [[UIImageView alloc] initWithImage:[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://www.austinbull.com/clonemines.png"]]]];
	[self setMyImage:tempImageView];
	[tempImageView release];
	
	myScrollView.contentSize = CGSizeMake(myImage.frame.size.width, myImage.frame.size.height);
	myScrollView.maximumZoomScale = 4.0;
	myScrollView.minimumZoomScale = 0.75;
	myScrollView.clipsToBounds = YES;
	myScrollView.delegate = self;
    [myScrollView addSubview:myImage];

this is working for me.

[raz0r]

Originally Posted by starwarsdevwookie59

I have a scroll view that displays an image. The code below is in the viewdidload section. How in the world do i get it to zoom in? I've tried so many different tutorials and im lost. Anyone know how to zoom on this? Code would be great! Thanks so much!

[scrollView2 setBackgroundColor:[UIColor blackColor]];
[scrollView2 setCanCancelContentTouches:NO];
scrollView2.clipsToBounds = YES;
scrollView2.indicatorStyle = UIScrollViewIndicatorStyleWhite;
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image0.png"]];
[scrollView2 addSubview:imageView];
[scrollView2 setContentSize:CGSizeMake(imageView.frame.size.wid th, imageView.frame.size.height)];
[scrollView2 setScrollEnabled:YES];
[imageView release];

dont release the image view just yet. release it along with the scrollview being released.

[scrollView2 setMinimumZoomScale:1.0];
[scrollView2 setMaximumZoomScale:4.0];
[scrollView2 setDelegate:self];

Then add a method to return

-(UIView *)viewForZoomingInScrollViewUIScrollView *)scrollview {
return imageview;
}