例如微博发送微博导航条内容

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- (void)viewDidLoad

{

    [super viewDidLoad];

    UILabel *titleViewLable = [[UILabel alloc] init];

    titleViewLable.numberOfLines = 0;

    titleViewLable.textAlignment = NSTextAlignmentCenter;

    CGFloat titleViewLabelLeft = 0;

    CGFloat titleViewLabelTop = 10;

    CGFloat titleViewLabelWidth = 200;

    CGFloat titleViewLabelHeight = 100;

    titleViewLable.frame = CGRectMake(titleViewLabelLeft,

                                      titleViewLabelTop,

                                      titleViewLabelWidth,

                                      titleViewLabelHeight);

    NSString *controllerTitle = @"发微博";

    NSString *name = @"Evan少";

    NSString *titleViewLbelStr = [NSString stringWithFormat:@"%@\n%@",controllerTitle,name];

    titleViewLable.text = titleViewLbelStr;

    NSMutableAttributedString *attrStr = [[NSMutableAttributedString alloc] initWithString:titleViewLbelStr];

    [attrStr addAttribute:NSFontAttributeName value:[UIFont boldSystemFontOfSize:16] range:[titleViewLbelStr rangeOfString:controllerTitle]];

    [attrStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:12] range:[titleViewLbelStr rangeOfString:name]];

    titleViewLable.attributedText = attrStr;

    self.navigationItem.titleView = titleViewLable;

}

例如微博发送微博导航条内容

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原文地址：http://www.cnblogs.com/happyEveryData/p/5514289.html