具有自定义视图select器的UIBarButtonItem init无法正常工作

我正在尝试几个小时，使一个左button正常工作，并模仿一个后退button。

我的代码来创buildbutton：

UIBarButtonItem *backButton = [self customBarButton:@"back_button" imageHiglighted:@"settings_button_highlighted" x:20 y:0 widthDivider:2.6 heightDivider:2.6]; backButton.target = self; backButton.action = @selector(buttonPressed:); self.navigationItem.leftBarButtonItem = backButton; 

这里调用的方法来创build自定义button：

 - (UIBarButtonItem *)customBarButton:(NSString *)imageDefault imageHiglighted:(NSString *)imageHighlighted x:(float)xy:(float)y widthDivider:(float)widthDivider heightDivider:(float)heightDivider { UIImage *customImageDefault = [UIImage imageNamed:imageDefault]; UIImage *customImageHighlighted = [UIImage imageNamed:imageHighlighted]; CGRect frameCustomButton = CGRectMake(x, y, customImageDefault.size.width/widthDivider, customImageDefault.size.height/heightDivider); UIButton *customButton = [[UIButton alloc] initWithFrame:frameCustomButton]; [customButton setBackgroundImage:customImageDefault forState:UIControlStateNormal]; [customButton setBackgroundImage:customImageHighlighted forState:UIControlStateHighlighted]; UIBarButtonItem *barCustomButton =[[UIBarButtonItem alloc] initWithCustomView:customButton]; return barCustomButton; } 

而行动：

 -(void)buttonPressed:(id) sender{ NSLog(@"Entered"); SearchViewController *ViewController = [[SearchViewController alloc] init]; [self.navigationController pushViewController:ViewController animated:YES]; } 

所以我能够用一个简单的UIButton而不是用一个UIButtonBarItem来实现，我真的不知道这是怎么回事。

如果你能帮助我，我会非常感激。

谢谢。

Answer 1

这样做是否将selector添加到自定义button因为它是bar buttom的view ：

 [customButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside]; 

编辑 ： 注意 ： UIBarButtonItem的target和action适用于custom views 。

Answer 2

 UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; [button setImage:[UIImage imageNamed:@"goback.png"] forState:UIControlStateNormal]; [button addTarget:self action:@selector(//HERE ! i don't know put what thing !) forControlEvents:UIControlEventTouchUpInside]; [button setFrame:CGRectMake(0, 0, 32, 32)]; self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button]; 

Answer 3

尝试这个

 self.navigationItem.leftBarButtonItem=[[UIBarButtonItem alloc] initWithCustomView:[GlobalMethods buttonWithImage:@"top-nav-back" heighlightImageName:nil buttonFrame:CGRectMake(102, 1, 50, 30) selectorName:@selector(btnBackClicked:) target:self]]; + (UIButton*)buttonWithImage:(NSString*)normalImageName heighlightImageName:(NSString*)heighlightImageName buttonFrame:(CGRect)buttonFrame selectorName:(SEL)selectorName target:(id)target { UIButton *objButton = [UIButton buttonWithType:UIButtonTypeCustom]; [objButton setFrame:buttonFrame]; [objButton addTarget:target action:selectorName forControlEvents:UIControlEventTouchUpInside]; [objButton setImage:[GlobalMethods getImageFromResourceBundle:normalImageName] forState:UIControlStateNormal]; if(heighlightImageName) [objButton setImage:[GlobalMethods getImageFromResourceBundle:heighlightImageName] forState:UIControlStateDisabled]; if(heighlightImageName) [objButton setImage:[GlobalMethods getImageFromResourceBundle:heighlightImageName] forState:UIControlStateSelected]; return objButton; } 

Answer 4

尝试这个..

 [customButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside]; 

在你的customBarButton方法..我的意思是说select器给你的button，而不是酒吧button项..

检查并回复..

Answer 5

只要把这行代码放在代码中

 [backButton addTarget:self action:@selector(backBtnPressed:) forControlEvents:UIControlEventTouchUpInside]; 

Answer 6

这对我有效

 UIButton * tmpButton = [self generateButtonwithImageName:@"Back.png" andSize:CGRectMake(0, 0, 55, 30)]; UIBarButtonItem * backButton = [[UIBarButtonItem alloc] initWithCustomView:tmpButton]; [tmpButton addTarget:self action:@selector(reload) forControlEvents:UIControlEventTouchUpInside]; self.navigationItem.leftBarButtonItem=backButton; -(UIButton*)generateButtonwithImageName :(NSString*)imageName andSize:(CGRect)rect{ UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame=rect; [button setBackgroundImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal]; return button; } 

Answer 7

//为我工作

 if([version floatValue] < 7.0) { [self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"navi-bar.png"] forBarMetrics:UIBarMetricsDefault]; self.navigationController.navigationBar.opaque = YES; closeButton = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 35, 30)]; [closeButton setImage:[UIImage imageNamed:@"btn_end.png"] forState:UIControlStateNormal]; [closeButton setImage:[UIImage imageNamed:@"btn_end_on.png"] forState:UIControlStateHighlighted]; [closeButton addTarget:self action:@selector(actionClose) forControlEvents:UIControlEventTouchUpInside]; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithCustomView:closeButton]; } else{ /*add button back to navigation*//*add buttom back to navigation*/ UIBarButtonItem *itemBack = [[UIBarButtonItem alloc]initWithTitle:@"完了" style:UIBarButtonItemStylePlain target:self action:@selector(actionClose)]; self.navigationItem.rightBarButtonItem = itemBack; }