UIBarButtonItem init,自定义视图选择器无法正常工作

Question

我正在努力让左按钮正常工作并模仿后退按钮.

我创建按钮的代码:

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;

这里调用创建自定义按钮的方法:

- (UIBarButtonItem *)customBarButton:(NSString *)imageDefault imageHiglighted:(NSString *)imageHighlighted x:(float)x y:(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;

}

行动:

-(void)buttonPressed:(id) sender{

    NSLog(@"Entered");
    SearchViewController *ViewController = [[SearchViewController alloc] init];
    [self.navigationController pushViewController:ViewController animated:YES];

}

所以我能用一个简单的UIButton但不能用UIButtonBarItem来制作它,我真的不知道它是怎么回事.

如果你能帮助我,我会非常感激.

谢谢.

Answer 1

做到这一点添加selector到自定义的button,因为它是view的barBUTTOM:

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

编辑:请注意:该target和action的UIBarButtonItem申请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];