NavigationController导航栏中添加多个UIBarButtonItem

NavigationController导航栏中添加多个UIBarButtonItem 
 
在实际的开发中，导航器是最重要的容器之一，我们经常要在导航栏中添加各种样式的按钮，添加一个按钮很简单，代码如下图： 
UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:@"Setting" style:UITabBarSystemItemContacts  
                                                                 target:self action:@selector(clickSettings:)];           
self.navigationItem.rightBarButtonItem = anotherButton;  
[anotherButton release]; 
其中按钮的样式可以有多种，具体的可以参考：https://developer.apple.com/library/ios/prerelease/#documentation/UIKit/Reference/UIBarButtonItem_Class/  
在有些项目中要在右面添加两个按钮，实现的样式如下图： 
  
  
UIToolbar* tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 150, 45)];  
[tools setTintColor:[self.navigationController.navigationBar tintColor]];  
[tools setAlpha:[self.navigationController.navigationBar alpha]];  
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:2]; 
UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd  
                        target:self action:@selector(clickSettings:)]; 
UIBarButtonItem *anotherButton1 = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UITabBarSystemItemContacts  
                                                        target:self action:@selector(clickEdit:)];  
[buttons addObject:anotherButton];  
[anotherButton release];  
[buttons addObject:anotherButton1];  
[anotherButton1 release];  
[tools setItems:buttons animated:NO];  
[buttons release];  
UIBarButtonItem *myBtn = [[UIBarButtonItem alloc] initWithCustomView:tools];  
self.navigationItem.rightBarButtonItem = myBtn; 
[myBtn release];  
[tools release]; 

摘自 计算机学习村落