Set UIImageView Size?
i have following problem: i generate subviews UIView in an UIScrollView including UIImageViews.
NSArray *bilder = [[NSArray alloc] initWithObjects:@"lol.jpg", @"lol2.jpg", nil];
NSArray *added = [[NSMutableArray alloc] init];
UIImageView *tmpView;
for (NSString *name in bilder) {
UIImage *image = [UIImage imageNamed:name];
tmpView = [[UIImageView alloc] initWithImage:image];
tmpView.contentMode = UIViewContentModeScaleAspectFit;
tmpView.frame = CGRectMake(0, 0, 300, 300);
[added addObject:tmpView];
[tmpView release];
}
CGSize framy = mainFrame.frame.size;
NSUInteger x = 0;
for (UIView *view in added) {
[mainFrame addSubview:view];
view.frame = CGRectMake(framy.height * x++, 0, framy.height, framy.width);
}
mainFrame.scrollEnabled = YES;
mainFrame.pagingEnabled = YES;
mainFrame.contentSize = CGSizeMake(framy.height * [added count], framy.width);
mainFrame.backgroundColor = [UIColor blackColor];
i get image file names out of an arra开发者_Python百科y. now i want to resize the imageview to a specific size, but it won't work. any advice?
thanks + regards
UIImage
lacks the setSize:
method of NSImage
, but this post seems to add a scaleToSize:
method using a category on UIImage
.
Change tmpView.frame to use a new CGRect:
tmpView.frame = CGRectMake(tmpView.frame.origin.x,
tmpView.frame.origin.y,
newWidth,
newHeight);
What I see is:
view.frame = CGRectMake(framy.height * x++, 0, framy.height, framy.width);
But if you look at CGRectMake...
Declaration: CGRect CGRectMake (
CGFloat x,
CGFloat y,
CGFloat width,
CGFloat height
);
You are setting the X value, not the Y value. I expect, based on your later call to:
mainFrame.contentSize = CGSizeMake(framy.height * [added count], framy.width);
that you intend to make the these images appear on top of each other, not side by side.
Suggest:
view.frame = CGRectMake(framy.height * x++, 0, framy.height, framy.width);
to
view.frame = CGRectMake(0,framy.height * x++, framy.height, framy.width);
精彩评论