iPhone中的Scrollview中的图像

Question

I am new to iPhone,

I want to do scrolling in my image which is inside scrollView but i am unable to scroll my image,

Here is my code snippet,

UIImage *image1 = [UIImage imageWithContentsOfFile:@"768bg_with_footer.gif"];
self.imageView = [[UIImageView alloc] initWithImage:image1];
[self.scrollView addSubview:self.imageView];
scrollView.contentSize = image1.size;
self.scrollView.contentOffset = CGPointZero;

I have taken ScrollView in my .xib file.

Any help will be appreciated.

Answer 1

Try this code:

UIImage *image1 = [UIImage imageNamed:@"768bg_with_footer.gif"];
self.imageView = [[UIImageView alloc] initWithImage:image1];
[self.scrollView addSubview:self.imageView];
scrollView.contentSize = image1.size;
self.scrollView.contentOffset = CGPointZero;

We use initWithContentsOfFile when we know the path of the image.Using it with imageName will give a null image.

Answer 2

尝试跟随

self.scrollView.contentSize = self.imageView.frame.size;