自定义 UIlabel

#import <UIKit/UIKit.h>

@interface XXNavigationTitleLabel : UILabel

- (id)initWithTitle:(NSString *)navTitle;

@end

#import "XXNavigationTitleLabel.h"

@implementation XXNavigationTitleLabel

- (id)initWithTitle:(NSString *)navTitle

{

    self = [self initWithFrame:CGRectZero];

    if (self) {

        self.text = navTitle;

        CGSize s = [self.text sizeWithFont:self.font];

        self.frame = CGRectMake(0, 0, s.width, s.height);

        self.textAlignment = UITextAlignmentRight;

    }

    return self;

}

- (id)initWithFrame:(CGRect)frame

{

    self = [super initWithFrame:frame];

    if (self) {

        self.backgroundColor = [UIColor clearColor];

        self.textColor = [UIColor whiteColor];

        self.font = [UIFont boldSystemFontOfSize:20];

        self.shadowOffset = CGSizeMake(0, 0.5);

        self.shadowColor = [UIColor colorWithWhite:0x22/255.0 alpha:1];

    }

    return self;

}

@end