添加动作到自定义uiview

Question

我一直在试图做这个简单的事情：添加一个动作到一个简单的自定义视图。我期待在互联网上，发现了两个“易”解决方案：

• UITapGestureRecognizer
• UIButton

我想以编程方式做到这一点，我只需要处理自来水。

这是我的代码到目前为止，我已经尝试了两种解决方案单独和一起，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 

感谢您的帮助！

编辑

的问题是，handleTap和挖掘都从未被触发，即使我的评论按钮溶液或点击手势一个单独测试。对于按钮实现，我可以在我的界面上看到它，但点击它却什么都不做。

我的UIView然后在UIScrollview中以编程方式多次添加（对于多个视图）。

编辑2

的问题是比这更复杂化。自定义视图位于scrollview内部，该视图位于另一个不同的自定义视图内，其主要功能是重写hittest，因此该视图的触摸由scrollview保存。 (Here is the purpose of all that)。

似乎只要涉及触击测试，它就不起作用。

Answer 1

实施此委托方法，这将有助于你。

- (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

我不知道为什么你的UIButton和UITapGestureRecognizer选择器不点火。然而另一种选择来处理视图水龙头是简单地覆盖touchesEnded:withEvent方法：

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

这样的话，你就不必再创建一个UIButton或UITapGestureRecognizer对象。