Button click not registereding

Question

我有一個Xcode 5按鈕問題。

我在UIViewController上編程式地創建了一些按鈕，然後想要註冊點擊這些按鈕。我使用NSLog來跟蹤點擊次數，但似乎沒有在日誌中註冊點擊次數。

任何人都可以幫忙嗎？

最終目的是在每個按鈕點擊後繼續到下一個UIViewController，但只是測試以查看按鈕點擊是否先註冊。

這裏是我如何創建viewDidLoad（僅顯示1）按鈕。 注意：if-statement僅用於檢查在先前視圖中按下哪些按鈕。

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
// Do any additional setup after loading the view. 

    NSString *myString = [NSString stringWithFormat:@"%d", self.tagNumber ]; 

    if (self.tagNumber == 1) 
    { 
     hotelButton = [UIButton buttonWithType:UIButtonTypeCustom]; 
     hotelButton.tag = 1; 
     hotelButton.frame = CGRectMake(60, 60, 300.f, 100.f); 

     UIImage *buttonImage1 = [UIImage imageNamed:@"buttonImage1.png"]; 
     [hotelButton setBackgroundImage:buttonImage1 forState:UIControlStateNormal]; 
     [self.view addSubview:hotelButton]; 

     // Add targets and actions 
     [hotelButton addTarget:self action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpOutside]; 
    } 

}

這裏是我如何檢查按鈕點擊

- (void) buttonClicked 
{ 
    NSLog(@"Button %i clicked", hotelButton.tag); 
} 

注：我也試過如下：

- (void) buttonClicked:(UIButton *) button 
{ 
    NSLog(@"Button %ld clicked", (long int)[button tag]); 
} 

但是，這給了一個錯誤「未申報選擇器buttonClicked「在我的viewDidLoad指向action @選擇器）：

[hotelButton addTarget:self action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpOutside]; 

Answer 1

使用此：

[hotelButton addTarget:self action:@selector(buttonClicked) 
    forControlEvents:UIControlEventTouchUpInside]; 

---

從蘋果文檔：

UIControlEventTouchUpInside 
A touch-up event in the control where the finger is inside the bounds of the control. 

UIControlEventTouchUpOutside 
A touch-up event in the control where the finger is outside the bounds of the control 

而且該方法是：

- (void) buttonClicked 
{ 
    NSLog(@"Button %i clicked", hotelButton.tag); 
} 

Answer 2

試試這個，

[hotelButton addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 

，並通過發件人，

- (void) buttonClicked:(UIButton*)sender 
{ 
    NSLog(@"Button %i clicked", [sender tag]); 
} 

Answer 3

嘗試和改變外到內，

[hotelButton addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 

Answer 4

已修改了，如果條件。請按照： -

if (self.tagNumber == 1) 
    { 
     hotelButton = [UIButton buttonWithType:UIButtonTypeCustom]; 
     hotelButton.tag = 1; 
     hotelButton.frame = CGRectMake(60, 60, 300.f, 100.f); 

     UIImage *buttonImage1 = [UIImage imageNamed:@"buttonImage1.png"]; 
     [hotelButton setBackgroundImage:buttonImage1 forState:UIControlStateNormal]; 
hotelButton.showsTouchWhenHighlighted = YES; 
hotelButton.imageEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10); 
     [hotelButton addTarget:self action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpInside]; 
     [self.view addSubview:hotelButton]; 

    }