iphone - iOS：尝试自定义导航栏时出错

Question

我正在尝试自定义导航栏的标题视图并收到错误消息。以下是相关代码：

UIView *topView = [[UIView alloc] init];
    topView.translatesAutoresizingMaskIntoConstraints=NO;

     self.navigationItem.titleView=topView;

    UIImage *image = [UIImage imageNamed: @"logojim_35.png"];

    UIImageView *imageView = [[UIImageView alloc] initWithImage: image];
    imageView.translatesAutoresizingMaskIntoConstraints=NO;
    [topView addSubview:imageView];

    UILabel *titleLabel = [[UILabel alloc] init];
    titleLabel.translatesAutoresizingMaskIntoConstraints=NO;
    titleLabel.text=@"ACPL Mobile";

    [topView addSubview:titleLabel];

    NSDictionary *views = NSDictionaryOfVariableBindings(topView,imageView,titleLabel);

    [topView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[imageView]-[titleLabel]|" options:nil metrics:nil views:views]];

这是我得到的错误：

2012-11-13 16:23:51.635 Mobile_ACPL[22177:12b03] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Auto Layout still required after executing -layoutSubviews. UINavigationBar's implementation of -layoutSubviews needs to call super.'

知道问题是什么吗？

是的，我的项目需要自动布局。

Answer 1

看看这个问题：Build a titleView programmatically with constraints（或通常用约束构造视图）

如果您不将其设置为框架，则标题视图不知道 x 和 y 与其父级相关。