Я немного застрял, пытаясь понять, почему, когда я использую этот пользовательский UIView, чтобы показать строку из 3 x UILabels, что, хотя я вижу контур в RED для кадра, я ничего не вижу внутри кадра. Это означает, что метки не отображаются, а также черная граница для UILabels, которые я установил.
Может кто-нибудь заметить проблему здесь?
#import <UIKit/UIKit.h>
@interface LabelRowView : UIView {
UILabel *_dateLabel;
UILabel *_titleLabel;
UILabel *_locationLabel;
}
@property (nonatomic, retain) UILabel *dateLabel;
@property (nonatomic, retain) UILabel *titleLabel;
@property (nonatomic, retain) UILabel *locationLabel;
- (void)setFont:(UIFont *)newFont;
- (void)setDataWithDate:(NSString*)dateStr AndTitle:(NSString*)titleStr AndLocation:(NSString*)locationStr;
@end
// ==============================================================
@implementation LabelRowView
@synthesize dateLabel = _dateLabel;
@synthesize titleLabel = _titleLabel;
@synthesize locationLabel = _locationLabel;
- (void)setDefaultsForLabel:(UILabel*)label {
label.layer.borderColor = [UIColor blackColor].CGColor;
label.layer.borderWidth = 1.0;
label.textAlignment = UITextAlignmentLeft;
label.lineBreakMode = UILineBreakModeTailTruncation;
label.opaque = YES; // TODO: put back in for performance reasons if possible
label.backgroundColor = [UIColor clearColor];
}
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Initialization code
self.dateLabel = [[[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, 10, 10)] autorelease]; // Position will be updated later
self.titleLabel = [[[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, 10, 10)] autorelease]; // Position will be updated later
self.locationLabel = [[[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, 10, 10)] autorelease]; // Position will be updated later
// Set Defaults
[self setDefaultsForLabel:self.dateLabel];
[self setDefaultsForLabel:self.titleLabel];
[self setDefaultsForLabel:self.locationLabel];
self.layer.borderColor = [UIColor redColor].CGColor;
self.layer.borderWidth = 1.0;
}
return self;
}
- (void)setDataWithDate:(NSString*)dateStr AndTitle:(NSString*)titleStr AndLocation:(NSString*)locationStr {
self.dateLabel.text = dateStr;
self.titleLabel.text = titleStr;
self.locationLabel.text = locationStr;
}
- (void)setFont:(UIFont *)newFont {
self.dateLabel.font = newFont;
self.titleLabel.font = newFont;
self.locationLabel.font = newFont;
}
- (void)layoutSubviews {
[super layoutSubviews];
// Get current width for this subview
CGFloat contentViewWidth = self.frame.size.width;
CGSize maximumLabelSize = CGSizeMake(contentViewWidth, 9999);
CGFloat oneLineHeight = [@"A" sizeWithFont:self.dateLabel.font constrainedToSize:maximumLabelSize lineBreakMode:UILineBreakModeTailTruncation].height;
// Calculate Widths
CGFloat dateColumnWidth = [@"Ddd 12:22 " sizeWithFont:self.dateLabel.font constrainedToSize:maximumLabelSize lineBreakMode:UILineBreakModeTailTruncation].width;
CGFloat titleColumnWidth = (contentViewWidth - dateColumnWidth) * 2.0/3.0;
CGFloat locationColumnWidth = contentViewWidth - dateColumnWidth - titleColumnWidth;
// Date - Layout
CGRect newRect = CGRectMake(0.0, 0.0, dateColumnWidth, oneLineHeight);
self.dateLabel.frame = newRect;
// Date - Layout
newRect = CGRectMake(dateColumnWidth, 0.0, titleColumnWidth, oneLineHeight);
self.titleLabel.frame = newRect;
// Title - Layout
newRect = CGRectMake(dateColumnWidth + titleColumnWidth, 0.0, locationColumnWidth, oneLineHeight);
self.locationLabel.frame = newRect;
}
- (void)dealloc
{
[super dealloc];
}
@end