自定义UINavigationBar上面的按钮

定制回退按钮

1  UIImage *buttonBack30 = [[UIImage imageNamed:@"button_back_textured_30"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 13, 0, 5)];
2  UIImage *buttonBack24 = [[UIImage imageNamed:@"button_back_textured_24"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 12, 0, 5)];
3  [[UIBarButtonItem appearance] setBackButtonBackgroundImage:buttonBack30
                                                  forState:UIControlStateNormal
                                                barMetrics:UIBarMetricsDefault];
4  [[UIBarButtonItem appearance] setBackButtonBackgroundImage:buttonBack24
                                                  forState:UIControlStateNormal
                                                barMetrics:UIBarMetricsLandscapePhone];

设置右侧按钮

UIImage *button30 = [[UIImage imageNamed:@"button_textured_30"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 5, 0, 5)];
UIImage *button24 = [[UIImage imageNamed:@"button_textured_24"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 5, 0, 5)];
[[UIBarButtonItem appearance] setBackgroundImage:button30
                                            forState:UIControlStateNormal
                                          barMetrics:UIBarMetricsDefault];
[[UIBarButtonItem appearance] setBackgroundImage:button24
                                            forState:UIControlStateNormal
                                          barMetrics:UIBarMetricsLandscapePhone];