leanote-ios/Leanote/controller/auth/UILabel+SuggestSize.m

#import "UILabel+SuggestSize.h"

@implementation UILabel (SuggestSize)

- (CGSize)suggestedSizeForWidth:(CGFloat)width
{
    if (self.attributedText) {
        return [self suggestSizeForAttributedString:self.attributedText width:width];
    }

    return [self suggestSizeForString:self.text width:width];
}

- (CGSize)suggestSizeForAttributedString:(NSAttributedString *)string width:(CGFloat)width
{
    if (!string) {
        return CGSizeZero;
    }
    return [string boundingRectWithSize:CGSizeMake(width, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading context:nil].size;
}

- (CGSize)suggestSizeForString:(NSString *)string width:(CGFloat)width
{
    if (!string) {
        return CGSizeZero;
    }
    return [self suggestSizeForAttributedString:[[NSAttributedString alloc] initWithString:string attributes:@{NSFontAttributeName: self.font}] width:width];
}

@end