How can I use UIScrollView?

问题:

How can I use UIScrollView? please give me a simple example with one scrolling image?

回答1:

This will get you an insight of the UIScrollView control:

Learning the basics of UIScrollView

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Referenced from UIScrollView Tutorials

Some good samples with the basic functionalities covered

• http://halmueller.wordpress.com/2008/10/08/a-very-simple-uiscrollview-demo/
• http://developer.apple.com/iphone/library/samplecode/Scrolling/index.html
• http://www.vimeo.com/1642150
• http://jonathanwatmough.com/2008/12/implementing-tap-to-zoom-in-uiscrollview-on-an-iphone/
• http://cocoawithlove.com/2009/01/multiple-virtual-pages-in-uiscrollview.html

Not to mention:

• https://stackoverflow.com/search?q=UIScrollView

回答2:

This can be one example. Basically we create a scrollview, set its frame, add content as a subview, and then set the content size. The image (iphone.png) below is bigger than the iphone screen so that we can scroll it.

UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 20, 320, 460)];
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"iphone.png"]];

[scrollView addSubview:imageView];
[imageView release];
scrollView.contentSize = CGSizeMake(imageView.image.size.width, imageView.image.size.height);
[window addSubview:scrollView];
[scrollView release];

回答3:

Have a look at Apple's example apps:

• Scrolling
• PhotoScroller
• ScrollViewSuite

And of course at Apple's official documentation:

• Scroll View Programming Guide for iOS

回答4:

Try this link for scrollview
http://www.devx.com/wireless/Article/45113/1954

回答5:

Here is a link for all good tutorials: Code link

This link explain you basic steps for how to use: Steps link

This is a example of scrollview with one scrolling image using XIB and just few lines of code: scrollview with xib
Thanks

回答6:

You can use below code to add UIScrollView on yourView :-

[self.ScrollView setContentSize:(CGSizeMake(self.view.frame.size.width, self.view.frame.size.height))];

Step:1 Create a UiScrollView,

@interface ViewController : UIViewController
@property (strong, nonatomic) IBOutlet UIScrollView *MyScrollView;
@end

Step2: In your ViewController.m,

[self.MyScrollView setContentSize:(CGSizeMake(self.view.frame.size.width, self.view.frame.size.height))];

回答7:

Add UIImageView in to UIScrollView.

then,

Use

imageView.image = [UIImage imageNamed:@"image1.png"];
imageView.frame = CGRectMake(0.0, 0.0, imageView.image.size.width, imageView.image.size.height);
scrollView.contentSize = CGSizeMake(imageView.image.size.width, imageView.image.size.height);