CODEWITHSUNDEEP
iosobjective-cuiscrollviewuiimageview
ytpm
ytpm

Reputation: 5150

Allow scrolling image up and down in UIScrollView

I have a UIImageView inside a UIScrollView, I also implemented this method:

- (UIView*)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
    return self.imageView;
}

For the image to resize inside the UIScrollView, but I want to allow the user to change the y axis of the image and move it up and down, not just to pinch and resize.

I set the UIImageView contentMode to UIViewContentModeScaleAspectFit and gave the UIScrollView a maximumZoomScale of 0.5f

How could I do that?

Upvotes: 1

Views: 533

Answers (1)

Manuel Escrig
Manuel Escrig

Reputation: 2835

Try putting a bigger contentSize in the UIScrollView than the Frame. Then set the Frame of the UIImageView the same size as the UIScrollView contentSize.

Example

- (void)viewDidLayoutSubviews
{
  [self.imageView setFrame:CGSizeMake(320, self.view.frame.size.height* 1.5)];
  [self.scrollView setContentSize:CGSizeMake(320, self.view.frame.size.height* 1.5)];
}

Upvotes: 1

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