iOS-给手势UITapGestureRecognizer添加"tag"标志

UITapGestureRecognizer是没有tag属性，但他有UIView的属性，我们可以通过给UIView添加tag属性，从而标记UITapGestureRecognizer。

[objc] view
plaincopy

UITapGestureRecognizer *singleTap =

[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(whenClickImage:)];

[_firstImage addGestureRecognizer:singleTap];

UIView *singleTapView = [singleTap view];

singleTapView.tag = 0;

[singleTap release];

-(void)whenClickImage:(id)sender

{

UITapGestureRecognizer *singleTap = (UITapGestureRecognizer *)sender;

NSLog(@"%d",[singleTap view].tag]);

}