iphone – 从UINavigationBar中的按钮中删除闪光效果

这里有一些代码：

>在UIBarButtonItem上创建一个创建自定义按钮的类别.这是我的我使用这个类别来定制常规的按钮和后退按钮：

@interface UIBarButtonItem (UIBarButtonItem_customBACkground)

+ (id) customBarButtonWithtitle:(NSString *)title target:(id)target SELEctor:(SEL)SELEctor;
+ (id) customBACkButtonWithtitle:(NSString *)title target:(id)target SELEctor:(SEL)SELEctor;

@end

@implementation UIBarButtonItem (UIBarButtonItem_customBACkground)

+ (id) customButtonWithImagenamed:(NSString *)imagename SELEctedImagenamed:(NSString *)SELEctedImagename leftCapWidth:(CGFloat)leftCapWidth edgeInsets:(UIEdgeInsets)edgeInsets title:(NSString *)title target:(id)target SELEctor:(SEL)SELEctor {
    UIButton* customButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [customButton addTarget:target action:SELEctor forControlEvents:UIControlEventTouchUpInside];
    customButton.titleLabel.font = [UIFont boldSystemFontOfSize:12.0f];
    customButton.titleLabel.shadowColor = [UIColor colorWithRed:0.0f/255.0f green:0.0f/255.0f blue:0.0f/255.0f alpha:0.25f];
    customButton.titleLabel.shadowOffset = CGSizeMake(0.0f,-1.0f);
    customButton.titleLabel.lineBreakmode = UILineBreakmodeTailTruncation;
    customButton.titleEdgeInsets = edgeInsets;
    UIImage* navButtonBACkgroundImage = [[UIImage imagenamed:imagename] stretchableImageWithLeftCapWidth:leftCapWidth topCapHeight:0.0f];
    UIImage* navButtonPressedBACkgroundImage = [[UIImage imagenamed:SELEctedImagename] stretchableImageWithLeftCapWidth:leftCapWidth topCapHeight:0.0f];
    [customButton setBACkgroundImage:navButtonBACkgroundImage forState:UIControlStateNormal];
    [customButton settitle@R_191_6964@ forState:UIControlStateNormal];
    [customButton setBACkgroundImage:navButtonPressedBACkgroundImage forState:UIControlStateHighlighted];
    [customButton setBACkgroundImage:navButtonPressedBACkgroundImage forState:UIControlStateSELEcted];

    CGSize size = CGSizeMake(30.0f,30.0f);
    if (title != nil) {
        size = [[NSString StringWithString@R_191_6964@] sizeWithFont:customButton.titleLabel.font];
    }
    customButton.frame = CGRectMake(0.0f,0.0f,size.width + 20.0f,30.0f);
    customButton.layer.shouldRasterize = YES;
    customButton.layer.rasterizationScale = [[UIScreen mainScreen] scale];
    return [[[UIBarButtonItem alloc] initWithCustomView:customButton] autorelease];
}

+ (id) customBarButtonWithtitle:(NSString *)title target:(id)target SELEctor:(SEL)SELEctor {
    return [self customButtonWithImagenamed:@"navButtonBG.png" 
                 SELEctedImagenamed:@"navButtonPressedBG.png" 
                       leftCapWidth:6.0f 
                         edgeInsets:UIEdgeInsetsmake(0.0f,5.0f,5.0f) 
                              title@R_191_6964@ 
                             target:target 
                           SELEctor:SELEctor];
}

+ (id) customBACkButtonWithtitle:(NSString *)title target:(id)target SELEctor:(SEL)SELEctor {    
    return [self customButtonWithImagenamed:@"BACkButtonBG.png" 
                 SELEctedImagenamed:@"BACkButtonPressedBG.png" 
                       leftCapWidth:12.0f 
                         edgeInsets:UIEdgeInsetsmake(0.0f,11.0f,5.0f) 
                              title@R_191_6964@ 
                             target:target 
                           SELEctor:SELEctor];
}

@end

>将按钮添加到您的UINavigationBar

UIBarButtonItem* logoutButton = [UIBarButtonItem customBarButtonWithtitle:@"logout" target:self SELEctor:@SELEctor(logout)];
self.navigationItem.rightBarButtonItem = logoutButton;

>如果还要替换UINavigationController的后退按钮,请设置一个UINavigationControllerDelegate并实现如下所示的willShowViewController方法：

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
    if([navigationController.viewControllers count ] > 1) {
        UIViewController* BACkViewController = [navigationController.viewControllers objectATindex:(navigationController.viewControllers.count - 2)];
        NSString* BACkText = BACkViewController.title;
        UIBarButtonItem* newBACkButton = [UIBarButtonItem customBACkButtonWithtitle:BACkText target:navigationController SELEctor:@SELEctor(popViewControllerAnimated:)];
        viewController.navigationItem.leftBarButtonItem = newBACkButton;
        viewController.navigationItem.hidesBACkButton = YES;
    }
}

>以下是我使用的可伸缩图像：

>返回按钮：按下：>常规按钮：按下：