(转)UIImageView响应点击事件

使用EGOImageView显示头像，但是没有点击事件可以处理。

不想用UIButton做空图片了，所以就想找UIImageView响应点击事件的方法。

 

方法1：

UIImageView *testImageView = [[UIImageView alloc] init......................

testImageView.userInteractionEnabled = YES;  

        UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];  

        [testImageViewaddGestureRecognizer:singleTap];  

        [singleTap release];  //加入内存管理后可以省略该句

 

- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer {  

      

    //do some method.....   

} 

 

 

方法2：

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

{  

      

    UITouch *touch = [[event allTouches] anyObject];  

      

    if ([touch view] != UIImageView)  

    {  

          

        //do some method.....  

          

    }  

      

}

 

只要在上面的方法中加入处理事件就OK了。

 

======================

获取点击事件来源

 

 1.绑定点击事件 

 [BTBook setUserInteractionEnabled:YES]; 

[BTBook setTag:1000];

    UITapGestureRecognizer *singleTap3 = [[UITapGestureRecognizer alloc] initWithTarget:selfaction:@selector(GoThisPic:)];

    [BTBook addGestureRecognizer:singleTap3];

    [singleTap3 release];

 

 

2,获得事件源

 

-(void)GoThisPic:(UIGestureRecognizer *)gestureRecognizer

{

     UIImageView *view = [gestureRecognizer view];

     int tagvalue = view.tag;

}

 

当有多个同类型点击事件时，可以利用事件源得到对应的view。

例如：

    int photosCount = [tphotosList count];        

    for (int i=0; i

        

        NSString *photoUrl = [tphotosList objectAtIndex:i];

        

        //66.67 * 4

        int linenum = i / 4;

        int rownum = i % 4;

        

        EGOImageView *egoivVgirlPhoto = [[EGOImageView alloc] initWithPlaceholderImage:[UIImage imageNamed:@"loading.png"]];

        [egoivVgirlPhoto setTag:i];

        [egoivVgirlPhoto setFrame:CGRectMake(10+66.67*rownum, 30+10+66.67*linenum, 65, 65)];

        [egoivVgirlPhoto setImageURL:[NSURL URLWithString:photoUrl]];

        

        [egoivVgirlPhoto setUserInteractionEnabled:YES];

        

        UITapGestureRecognizer *touchVgirlPhotoGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(touchPhotoAction:)];        

        [egoivVgirlPhoto addGestureRecognizer:touchVgirlPhotoGesture];

        [touchVgirlPhotoGesture release];

        

        [self.contentView addSubview:egoivVgirlPhoto];

        [egoivVgirlPhoto release];

        

    }

 

-(void)touchPhotoAction:(UIGestureRecognizer *)gestureRecognizer{

    

    UIView *egoivPhotoView = [gestureRecognizer view];

    

    int tPhotoIndex = [egoivPhotoView tag];

    NSLog(@"tPhotoIndex: %d", tPhotoIndex);

    

    if ([delegate respondsToSelector:@selector(doTouchPhoto:)]) {

        [delegate doTouchPhoto:tPhotoIndex];

    }

    

}