iphone - 导航栏图片隐藏自定义导航栏按钮

Question

我可以为导航栏提供图像，也可以更改导航栏按钮项目的图像。出于某种原因，我猜导航栏图像重叠在导航栏按钮图像上。当我单击左侧的导航栏图像但导航栏按钮未显示在导航栏图像上时，导航栏按钮正常工作。这是代码；

UIImage *imagebar = [UIImage imageNamed: @"schedule-strip.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage: imagebar];
imageView.frame = CGRectMake(0, 0, 190, 44);
imageView.contentMode = UIViewContentModeScaleAspectFill;
self.navigationItem.titleView = imageView;


UIImage* image = [UIImage imageNamed:@"back-icon.png"];
CGRect frame = CGRectMake(0, 0, image.size.width, image.size.height);
UIButton* someButton = [[UIButton alloc] initWithFrame:frame];
[someButton setBackgroundImage:image forState:UIControlStateNormal];
[someButton setShowsTouchWhenHighlighted:YES];
[someButton addTarget:self action:@selector(backToMore) forControlEvents:UIControlEventTouchUpInside];

UIBarButtonItem* someBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:someButton];
[self.navigationItem setLeftBarButtonItem:someBarButtonItem];

[someBarButtonItem release];
[someButton release]; 

帮帮我。

Answer 1

使用代码[imageView addsubView someButton];

我希望现在您会看到该按钮。实际上，您正在将左栏按钮项目添加到默认导航栏，并且当您创建某个按钮时，它不会添加到与您的导航栏重叠的 imageview 上。因此，通过单击该区域它正在工作，但按钮不可见。