我创建了小型iPhone应用程序。我把UITableView放在单元格里面放了一些UIView。我添加了在单元格中水平移动视图的功能。现在我想添加逻辑来垂直移动整个UITableView，如果我在UIView中垂直移动我的手指。那是我的代码：
-(void)moveView:(UIPanGestureRecognizer *)recognizer
{
if([recognizer state] == UIGestureRecognizerStateBegan)
{
CGPoint location = [recognizer locationInView:[self superview]];
prevPos = location;
startPosition = self.frame.origin.x;
}
else if([recognizer state] == UIGestureRecognizerStateChanged)
{
CGPoint location = [recognizer locationInView:[self superview]];
float delX = location.x - prevPos.x;
float delY = location.y - prevPos.y;
if(delX > 0 && delX * delX > delY * delY)
{
CGPoint np = CGPointMake(self.frame.origin.x+delX, self.frame.origin.y);
CGRect fr = self.frame;
fr.origin = np;
self.frame = fr;
prevPos = location;
}
else if(delX * delX < delY * delY)
{
}
}
else if([recognizer state] == UIGestureRecognizerStateEnded ||
[recognizer state] == UIGestureRecognizerStateFailed ||
[recognizer state] == UIGestureRecognizerStateCancelled)
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
CGRect rect = self.frame;
rect.origin.x = startPosition;
self.frame = rect;
startPosition = 0;
[UIView commitAnimations];
}
}
我应该在这种情况下输入什么代码：else if(delX * delX < delY * delY)？
谢谢！