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

        [singleTap setNumberOfTapsRequired:1];

        [selfaddGestureRecognizer:singleTap];

        singleTap.delegate =self;

- (void)sigleTappedPickerView:(UIGestureRecognizer

{

//取得所點選的點的座標

CGPoint point = [senderlocationInView:self];

// 判斷該點在不在區域內

if (CGRectContainsPoint(CGRectMake(0,FIXED_PICKER_SELECTED_ORIGNALY,FIXED_PICKER_SELECTED_WIDTH, FIXED_PICKER_SELECTED_HEIGHT), point))

    {

       ///// Do what you want 

    }

}

)

UITouch類中包含如下成員函式：

- (CGPoint)locationInView:(UIView *)view：

CGRectContainsPoint  ：一個點是否包含在矩形中