导航栏中的ios标题和副标题居中

Question

我试图在导航栏中有两个UILabel而不是一个.

我按照此链接获取有关如何执行此操作的信息: 导航栏中的iPhone标题和副标题

它运作良好,但我不能让我的文本正确居中.它在按钮之间居中,但默认的标题行为是在正确的时间内居中.

我看了一下,同样的问题,但没有回答: UINavigationBar TitleView带副标题

我错过了什么？这是我的代码:

CGRect headerTitleSubtitleFrame = CGRectMake(0, 0, 200, 44);
UIView* _headerTitleSubtitleView = [[UILabel alloc] initWithFrame:headerTitleSubtitleFrame];
_headerTitleSubtitleView.backgroundColor = [UIColor clearColor];
_headerTitleSubtitleView.autoresizesSubviews = NO;

CGRect titleFrame = CGRectMake(0, 2, 200, 24);
UILabel *titleView = [[UILabel alloc] initWithFrame:titleFrame];
titleView.backgroundColor = [UIColor clearColor];
titleView.font = [UIFont boldSystemFontOfSize:20];
titleView.textAlignment = NSTextAlignmentCenter;
titleView.textColor = [UIColor whiteColor];
titleView.shadowColor = [UIColor darkGrayColor];
titleView.shadowOffset = CGSizeMake(0, -1);
titleView.text = @"Title";
titleView.adjustsFontSizeToFitWidth = YES;
[_headerTitleSubtitleView addSubview:titleView];

CGRect subtitleFrame = CGRectMake(0, 24, 200, 44-24);
UILabel *subtitleView = [[UILabel alloc] initWithFrame:subtitleFrame];
subtitleView.backgroundColor = [UIColor clearColor];
subtitleView.font = [UIFont boldSystemFontOfSize:13];
subtitleView.textAlignment = NSTextAlignmentCenter;
subtitleView.textColor = [UIColor whiteColor];
subtitleView.shadowColor = [UIColor darkGrayColor];
subtitleView.shadowOffset = CGSizeMake(0, -1);
subtitleView.text = @"Subtitle";
subtitleView.adjustsFontSizeToFitWidth = YES;
[_headerTitleSubtitleView addSubview:subtitleView];

self.navigationItem.titleView = _headerTitleSubtitleView;

Answer 1

您应该调整两个帧的宽度.它应该低于200.试试这个.

CGRect titleFrame = CGRectMake(0, 2, 160, 24);
CGRect subtitleFrame = CGRectMake(0, 24, 160, 44-24);

编辑:左侧的后退按钮较宽,标题视图向右移动.

请查看宽度为200px的图像

并且图像宽度为160px

我建议你相应地调整titleview的宽度和标签.

如果您想了解更多关于后退按钮宽度的信息,请参阅此处的讨论. SO Post 1.

SO Post 2.