通常是在UIGestureRecognizer的代理函数中进行操作

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

两种思路：

1. 根据touch的view的类型进行判断

//example
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
    //如果点击视图为uitableview 则忽略手势
  //  NSLog(@"view class:%@",[touch.view class]);
    if([touch.view isKindOfClass:[UITableView class]]){
        return NO;
    }
    return YES;
}

1. 根据touch点击point是否在目标view的frame中

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
    //注意：_touchView应该是_referenceView的子视图
    CGPoint p = [touch locationInView:_referenceView];
    //NSLog(@"frame:%@",NSStringFromCGPoint(p));
    if(CGRectContainsPoint (_touchView.frame, p)){
        return NO;
    }
    return YES; }

两种思路，一般来说第二种适用性更广，尤其面对比较复杂的视图构成的情况。