爲View添加觸摸事件 添加tag 用於判斷View

需在.h文件中加上 <UIGestureRecognizerDelegate>

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizeralloc]initWithTarget:selfaction:@selector(UesrClickedAlert:)];

//UITapGestureRecognizer 沒有tag但是UITapGestureRecognizer的View有Tag，這裏通過使用UITapGestureRecognizer的Tag來標識圖片的點擊

[imgv addGestureRecognizer:singleTap];

imgv.userInteractionEnabled = YES;

UIView *tapView = singleTap.view;

tapView.tag = 1;

    singleTap.numberOfTapsRequired =1;

    singleTap.numberOfTouchesRequired =1;

    singleTap.delegate = self;

    [view addGestureRecognizer:singleTap];

    view.userInteractionEnabled =YES;

-(void)UesrClickedAlert:(UITapGestureRecognizer *)sender

{

    UITapGestureRecognizer *singleTap = (UITapGestureRecognizer *)sender;

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

    

    NSLog(@"numberOfTapsRequired:%d",sender.numberOfTapsRequired);//判斷是幾根手指

    NSLog(@"numberOfTouchesRequired:%d",sender.numberOfTouchesRequired);//判斷點擊了幾次

    if (sender.numberOfTapsRequired ==1) {

        NSLog(@"Hello !");

    }

    

}

-(void)UesrClickedAlert:(UITapGestureRecognizer *)sender

{

    NSLog(@"numberOfTapsRequired:%d",sender.numberOfTapsRequired);//判斷是幾根手指

    NSLog(@"numberOfTouchesRequired:%d",sender.numberOfTouchesRequired);//判斷點擊了幾次

    if (sender.numberOfTapsRequired ==1) {

        NSLog(@"暫無法推薦產品！");

    }

    

}