添加動作到自定義uiview

Question

我一直在試圖做這個簡單的事情：添加一個動作到一個簡單的自定義視圖。我期待在互聯網上，發現了兩個「易」解決方案：

• UITapGestureRecognizer
• UIButton

我想以編程方式做到這一點，我只需要處理自來水。

這是我的代碼到目前爲止，我已經嘗試了兩種解決方案單獨和一起，它不工作！

.M

#import "AreaView.h" 
@implementation AreaView 
#define GREY 27.0/255.0 
#define PINK_R 252.0/255.0 
#define PINK_G 47.0/255.0 
#define PINK_B 99.0/255.0 

- (id) initWithFrame:(CGRect)frame imageName:(NSString *)imageName areaName:(NSString *)areaName minimumSpending:(int)minimumSpending andCapacity:(int)capacity 
{ 
    self = [self initWithFrame:frame]; 
    if (self) { 
     self.backgroundColor = [UIColor colorWithRed:GREY green:GREY blue:GREY alpha:1]; 
     self.userInteractionEnabled=YES; 
     //Init variables 
     _areaName=areaName; 
     _capacity=capacity; 
     _minimumSpending=minimumSpending; 

     //Image view 
     _logoImageView = [[UIImageView alloc]initWithFrame:CGRectMake(5, 4, 66, 50)]; 
     //_logoImageView.image = [UIImage imageNamed:imageName]; 
     _logoImageView.backgroundColor = [UIColor grayColor]; 

     //Label 
     _areaNameLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 54, 76, 18)]; 
     _areaNameLabel.textAlignment = NSTextAlignmentCenter; 
     _areaNameLabel.textColor = [UIColor whiteColor]; 
     _areaNameLabel.font = [UIFont systemFontOfSize:12.0]; 
     _areaNameLabel.text = areaName; 

     //button 
     _button = [[UIButton alloc]initWithFrame:self.bounds]; 
     _button.userInteractionEnabled=YES; 
     _button.backgroundColor=[UIColor yellowColor]; 
     [_button addTarget:self action:@selector(handleTap:) forControlEvents:UIControlEventTouchUpInside]; 

     //tap gesture racognizer 
     UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)]; 
     [tapRecognizer setNumberOfTapsRequired:1]; 
     [tapRecognizer setDelegate:self]; 
     [self addGestureRecognizer:tapRecognizer]; 

     [self addSubview:_logoImageView]; 
     [self addSubview:_areaNameLabel]; 
     [self addSubview:_button]; 
    } 
    return self; 
} 


-(void)handleTap:(UIButton *)button 
{ 
    NSLog(@"tapped!"); 
} 

-(void)tapped:(UITapGestureRecognizer *)recognizer 
{ 
    NSLog(@"tapped!"); 
} 
@end 

.H

#import <UIKit/UIKit.h> 

@interface AreaView : UIView <UIGestureRecognizerDelegate> 

@property (nonatomic) UIImageView *logoImageView; 
@property (nonatomic) UILabel *areaNameLabel; 
@property (nonatomic) NSString *areaName; 
@property (nonatomic) int minimumSpending; 
@property (nonatomic) int capacity; 
- (id) initWithFrame:(CGRect)frame imageName:(NSString *)imageName areaName:(NSString *)areaName minimumSpending:(int)minimumSpending andCapacity:(int)capacity; 
@property (nonatomic, strong) UIButton *button; 
@end 

感謝您的幫助！

編輯

的問題是，handleTap和挖掘都從未被觸發，即使我的評論按鈕溶液或點擊手勢一個單獨測試。對於按鈕實現，我可以在我的界面上看到它，但點擊它卻什麼都不做。

我的UIView然後在UIScrollview中以編程方式多次添加（對於多個視圖）。

編輯2

的問題是比這更復雜化。自定義視圖位於scrollview內部，該視圖位於另一個不同的自定義視圖內，其主要功能是重寫hittest，因此該視圖的觸摸由scrollview保存。 (Here is the purpose of all that)。

似乎只要涉及觸擊測試，它就不起作用。

Answer 1

實施此委託方法，這將有助於你。

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch 
    { 
      id touchedView = gestureRecognizer.view; 
      if ([touchedView isKindOfClass:[UIButton class]]) 
      { 
       return NO; //It won't invoke gesture method, But it'll fire button method. 
      } 
      return YES; 
    } 

Answer 2

我不知道爲什麼你的UIButton和UITapGestureRecognizer選擇器不點火。然而另一種選擇來處理視圖水龍頭是簡單地覆蓋touchesEnded:withEvent方法：

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ 
    //handle a tap 
} 

這樣的話，你就不必再創建一個UIButton或UITapGestureRecognizer對象。