ios之在 iOS 7 中更改条形按钮的颜色

我的包含 View 的 viewDidLoad 中有以下代码:

// Now add the next button 
UIBarButtonItem *nextButton = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(self)]; 
self.navigationItem.rightBarButtonItem.tintColor = [UIColor blueColor]; 
self.navigationItem.rightBarButtonItem = nextButton; 

[super viewDidLoad]; 
// Do any additional setup after loading the view. 
 
self.navigationBar.tintColor = [UIColor whiteColor]; 
self.navigationBar.barTintColor = [UIColor blackColor]; 

请您参考如下方法:

分配按钮后，您必须在按钮上设置 tintColor 属性。

self.navigationItem.rightBarButtonItem = nextButton; 
self.navigationItem.rightBarButtonItem.tintColor = [UIColor blueColor]; 

self.navigationItem.rightBarButtonItem.tintColor = [UIColor blueColor]; 
self.navigationItem.rightBarButtonItem = nextButton;