This has me stumped. I'm trying to figure out how to save the state of a UIScrollView. For example, I have several images in a UIScrollView that are loaded like so:
NSUInteger i;
for (i = 1; i <开发者_如何学C;= kNumImages; i++)
{
NSString *imageName = [NSString stringWithFormat:@"image%d.jpg", i];
UIImage *image = [UIImage imageNamed:imageName];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
}
Now my question is how can I make it where the user can return to the image that they stopped scrolling at? Does anyone know how to accomplish this? Thanks.
Try this:
NSUserDefaults *defaults = [NSUserDefaults standardDefaults];
[defaults setFloat: scrollview.contentOffset.x forKey: @"myScrollPositionX"];
[defaults setFloat: scrollview.contentOffset.y forKey: @"myScrollPositionY"];
To restore:
scrollView.contentOffset = CGPointMake([defaults floatForKey: @"myScrollPositionX"], [defaults floatForKey: @"myScrollPositionY"]);
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