攻丝UIButton，这是UIView的子视图

Question

我在UIButton上捕获水龙头时遇到问题，这是UIView的子视图。以下是我的代码设置方法：

// in MyClass.m 
@interface MyClass() 
@property (nonatomic, retain) UIButton *myButton; 
@end 

@implementation MyClass 
@synthesize myButton; 

- (void) buttonTapped:(id) sender { 
    NSLog(@"button tapped!"); 
} 

- (id) initWithFrame:(CGRect)frame { 
    if (!(self = [super initWithFrame:CGRectZero])) 
     return nil; 

    myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    [myButton setImage:[UIImage imageNamed:@"image.png"] 
            forState:UIControlStateNormal]; 
    [myButton addTarget:self 
       action:@selector(buttonTapped:) 
     forControlEvents:UIControlEventTouchUpInside]; 
    myButton.exclusiveTouch = YES; 
    myButton.frame = CGRectMake(100, 100, 100, 100); 
    [self addSubview:myButton]; 

    return self; 
} 

- (void) dealloc { 
    [myButton release]; 
    [super dealloc]; 
} 

@end 

该按钮出现在视图中。当我点击它时，按钮颜色会立即改变。然而，选择器buttonTapped:永远不会被调用。 任何想法为什么？

如何验证buttonTapped:确实是myButton的目标？

Answer 1

你可以检验当前类是目标登录将R

NSLog(@"actions for target %@",[myButton actionsForTarget:self forControlEvent:UIControlEventTouchUpInside]); 

不过，我加你的代码的测试项目（单个视图模板）和buttonTapped:方法处理。

- (void) buttonTapped:(id) sender { 
    NSLog(@"button tapped!"); 
} 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 


    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; 

    self.window.backgroundColor = [UIColor whiteColor]; 
    [self.window makeKeyAndVisible]; 
    self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease]; 
    self.window.rootViewController = self.viewController; 
    UIButton * myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    [myButton setImage:[UIImage imageNamed:@"image.png"] 
      forState:UIControlStateNormal]; 
    [myButton addTarget:self 
       action:@selector(buttonTapped:) 
    forControlEvents:UIControlEventTouchUpInside]; 
    myButton.exclusiveTouch = YES; 
    myButton.frame = CGRectMake(100, 100, 100, 100); 
    [rv.view addSubview:myButton]; 

    return YES; 
} 

该问题在其他地方。代码是否发布了MyClass的整个.h和.m文件？