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1. 自定义NavigationController:
@interface CustomNavigationController : UINavigationController
2. 重写Push方法, 拦截Push进来的控制器:
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated { // 判断Push进来的控制器是否根控制器 if (self.childViewControllers.count > 0) { // Push时隐藏TabBarBottom(应用层级结构为TabBarController -> NavigationController时) viewController.hidesBottomBarWhenPushed = YES; // 添加左边Item到navigationItem viewController.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithTarget:self image:@“leftBarButtonImage" highlightedImage:@"leftBarButtonImage_highlighted" action:@selector(clickLeftItem)]; // 添加左边Item到navigationItem viewController.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithTarget:self image:@“rightBarButtonImage" highlightedImage:@“rightBarButtonImage_highlighted" action:@selector(clickRightItem)]; } [super pushViewController:viewController animated:YES]; }
Item点击事件:
- (void)clickLeftItem { // Method [self popViewControllerAnimated:YES]; }
- (void)clickLeftItem { // Method }
3. 通过Category，自定义BarButtonItem创建方法:
/**
* 创建Item
*
* @param imageName Item图片
* @param highlightedImageName Item的HighLighted图片
* @param target Item点击事件的执行者
* @param action Item点击事件
*
*/
+ (UIBarButtonItem *)itemWithTarget:(id)target image:(NSString *)imageName highlightedImage:(NSString *)highlightedImageName action:(SEL)action
{
// 创建按钮
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
// 设置按钮图片
[button setImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:highlightedImageName] forState:UIControlStateHighlighted];
// 设置按钮尺寸
button.size = button.currentImage.size; // 避免图片拉伸
// 设置按钮监听事件
[button addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
// 返回Item
return [[UIBarButtonItem alloc] initWithCustomView:button];
}
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原文地址：http://www.cnblogs.com/happyplane/p/4704320.html
