Sample UIKit layout code

gistfile1.m

-(void)contentUpdated {
    CGFloat outsidePadding = 10;
    CGFloat paddingBetweenElements = 5;
    CGFloat maxHeadlineHeight = 200;
    
    self.thumbnail.frame = (CGRect){(CGPoint){outsidePadding, outsidePadding}, self.thumbnail.image.size};
    
    CGFloat headlineWidth = WIDTH(self) - (RIGHT(self.thumbnail) + paddingBetweenElements + outsidePadding);
    CGFloat headlineHeight = [self.headline.text sizeWithFont:self.headline.font
                                            constrainedToSize:CGSizeMake(headlineWidth, maxHeadlineHeight)].height;
    self.headline.frame = CGRectMake(RIGHT(self.thumbnail) + paddingBetweenElements, TOP(self.thumbnail), headlineWidth, headlineHeight);
    
    CGFloat bylineWidth = [self.byline.text sizeWithFont:self.byline.font].width;
    CGFloat bylineHeight = self.byline.font.lineHeight;
    self.byline.frame = CGRectMake(LEFT(self.headline), BOTTOM(self.headline) + paddingBetweenElements, bylineWidth, bylineHeight);
    
    CGFloat dateWidth = [self.date.text sizeWithFont:self.date.font].width;
    self.date.frame = CGRectMake(RIGHT(self.byline) + paddingBetweenElements, TOP(self.byline), dateWidth, bylineHeight);

    CGFloat bottom = CGFloat bottom = fmaxf(BOTTOM(self.thumbnail), BOTTOM(self.byline));
    // find this and other useful UIView categories at https://github.com/twobitlabs/TBLCategories
    [self setHeight:bottom + outsidePadding];
}