iOSUIButton类的扩展,创建一个UIBarButtonItem的button
.h文件中:
#import <UIKit/UIKit.h> @interface UIBarButtonItem (YLY) /** * 快速创建一个item对象(包装一个button) * * @param image 按钮图片 * @param hilight 高亮图 * @param target 按钮的监听器 * @param action 按钮的件提起的回调方法 * * @return 创建的item对象 */ +(UIBarButtonItem *)itemWithImage:(NSString *)image higlightedImage:(NSString *)hilight target:(id)target action:(SEL)action; @end
.m文件中:
#import "UIBarButtonItem+YLY.h" @implementation UIBarButtonItem (YLY) +(UIBarButtonItem *)itemWithImage:(NSString *)image higlightedImage:(NSString *)hilight target:(id)target action:(SEL)action { UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom]; UIImage *normal = [UIImage imageWithNamed:image]; [btn setBackgroundImage:normal forState:UIControlStateNormal]; [btn setBackgroundImage:[UIImage imageWithNamed:hilight]forState:UIControlStateHighlighted]; btn.bounds = CGRectMake(0, 0, normal.size.width, normal.size.height); [btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside]; return [[UIBarButtonItem alloc] initWithCustomView:btn]; } @end
使用:
//菜单 self.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithImage:@"navigationbar_pop" higlightedImage:@"navigationbar_pop_highlighted" target:self action:@selector(pop)];
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