TouchEvent在iphone中的疑问

Question

HA ii，我在一个视图tableview和tab中有两个tableview，这个tab隐藏在mainview下面，用户只能在mainview中看到tableview，用户只需要点击按钮就可以看到button标签上面，当用户点击按钮就向上德雷奇到MAINVIEW我已经做到了这一点通过使用此代码

-(IBAction) controlPanelShowHide:(id)sender 
{ 

    CGRect frame = tab.frame; 
    CGRect viewframe = hideviewoftab.frame; 
    [UIView beginAnimations:nil context:nil]; 
    [UIView setAnimationDuration:0.9]; 
    if (!self.isExpanded) 
    { 
     self.isExpanded = YES; 
     if (frame.origin.y -=240) { 

     tab.frame = frame; 
     } 
     if (imageframe.origin.y -=240) { 
      btnShowHide.frame =imageframe; 
     } 
     if (viewframe.origin.y -=240) { 
      hideviewoftab.frame =viewframe; 
     } 



    } else { 
     self.isExpanded = NO; 
     if (frame.origin.y +=240) { 

      tab.frame = frame; 
     } 
     if (imageframe.origin.y +=240) { 
      btnShowHide.frame =imageframe; 
     } 
     if (viewframe.origin.y +=240) { 
      hideviewoftab.frame =viewframe; 
     } 


    } 
    [UIView commitAnimations]; 

} 

每一个东西做工精细与此代码，但我需要用触摸事件拖动此选项卡，即当用户点击并按住它并在屏幕上拖动任何软件时（只向上）>我认为这是通过- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event完成的。但我们怎么做到这一点？对于非常非常差的英语感到抱歉。希望您理解我的问题。 在此先感谢。 编辑：

- (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event 
{ CGPoint pt = [[touches anyObject] locationInView:self];  
    [tab beginAnimations:nil context:nil]; 
    [tab setAnimationDuration:0.1];    
    CGRect newFrame = tab.frame; 
    newFrame.origin.y += pt.y - touchingPoint.y;  
    newFrame.origin.x += pt.x - touchingPoint.x; 
    [self setFrame:newFrame]; 
    [tab commitAnimations]; 
} 

- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event 
{  
    CGPoint pt = [[touches anyObject] locationInView:self];  
    [tab beginAnimations:nil context:nil]; 
    [tab setAnimationDuration:0.1];    
    CGRect newFrame = tab.frame; 
    newFrame.origin.y += pt.y - touchingPoint.y;  
    [self setFrame:newFrame]; 
    [tab commitAnimations];  
} 

Answer 1

阅读此链接

How can we move a view vertically upward and downwards?

这里修改- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event方法与此代码

- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event 
{  
    CGPoint pt = [[touches anyObject] locationInView:self];  
    [UITableView beginAnimations:nil context:nil]; 
    [UITableView setAnimationDuration:0.1];    
    CGRect newFrame = self.frame; 
    newFrame.origin.y += pt.y - touchingPoint.y;  
    newFrame.origin.x += pt.x - touchingPoint.x; 
    [self setFrame:newFrame]; 
    [UITableView commitAnimations];  
}