使用Interface Builder检测UIView上的触摸 [英] Detect touch on UIView with Interface Builder

问题描述

如何在 UIviewController 中仅检测代码（不使用Interface Builder）检测 UIView / p>

我发现了touchesBegan方法，但它不会被调用。我没有初始化任何其他关于这种方法。

   - （void）touchesBegan：（NSSet *）touches withEvent：（UIEvent *）event 
  

解决方案

  #import TouchView.h
 
 
 //TouchView.h 
 
 #import< Foundation / Foundation.h> 
 #importTouchViewDelegate.h
 
 @interface TouchView：UIView {
 id< TouchViewDelegate>代表; 
} 
 @property（retain）id delegate; 
 @end 
 
 //TouchView.m 
 
 @implementation TouchView 
 @synthesize delegate; 
 
  - （id）initWithFrame：（CGRect）frame 
 {
 self.userInteractionEnabled = YES; 
 return self; 
} 
  - （id）initWithCoder :( NSCoder *）aDecoder 
 {
 self.userInteractionEnabled = YES; 
 return self; 
} 
  - （void）awakeFromNib 
 {
 self.userInteractionEnabled = YES; 
} 
  - （void）touchesBegan：（NSSet *）touches withEvent：（UIEvent *）event 
 {
 [delegate touchDown：self]; 
} 
  - （void）touchesEnded：（NSSet *）touches withEvent：（UIEvent *）event 
 {
 [delegate touchUp：self]; 
} 
 @end 
 
 //TouchViewDelegate.h 
 #import< UIKit / UIKit.h> 
 
 
 @protocol TouchViewDelegate 
  - （void）touchDown：（id）sender; 
  - （void）touchUp：（id）sender; 
 @end 
  

How can I detect touches in a UIviewController for a UIView with code only (without Interface Builder)?

I found the touchesBegan method but it doesn't get called ever. I didn't initialize anything else regarding this method.

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

解决方案

#import "TouchView.h"


//TouchView.h

#import <Foundation/Foundation.h>
#import "TouchViewDelegate.h"

@interface TouchView : UIView {
    id <TouchViewDelegate>  delegate;
}
@property (retain) id delegate;
@end

//TouchView.m

@implementation TouchView
@synthesize delegate;

-(id) initWithFrame:(CGRect)frame
{
    self.userInteractionEnabled = YES;
    return self;
}
-(id) initWithCoder:(NSCoder *)aDecoder
{
    self.userInteractionEnabled = YES;
    return self;
}
-(void) awakeFromNib
{
    self.userInteractionEnabled = YES;
}
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [delegate touchDown:self];
}
-(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
    [delegate touchUp:self];
}
@end

//TouchViewDelegate.h
#import <UIKit/UIKit.h>


@protocol TouchViewDelegate
-(void) touchDown:(id) sender;
-(void) touchUp:(id)sender;
@end

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