在导航栏中自定义UIBarButtonItem

Question

I was trying to customizing the UIBarButtonItem in Navigation Bar
I found that there is a property in UIBarButtonItem : "tintColor" , and I set it like this

self.navigationItem.leftBarButtonItem.tintColor = [UIColor redColor];  

It works well, but if I try this :

self.navigationItem.leftBarButtonItem.tintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"imageName"]];  

1 . It doesn't work as expect , however , the leftBarButtonItem shows a black appearance ,why ?

If I try a clearColor :

self.navigationItem.leftBarButtonItem.tintColor = [UIColor clearColor];  

2 . The leftBarButtonItem shows a black appearance still, why ?

3 . I want to customize it with a pattern image like above , how can I do that ?

Thank you

Answer 1

您可以检查此示例代码以自定义导航栏和后退按钮https://github.com/boctor/idev-recipes/tree/master/CustomBackButton