2010-12-06 49 views
3

我需要创建一个可扩展和可折叠的某种UIView,并且无法支付第三方控件。如何创建一个可折叠的UIView

这基本上是我怎么想它的行为:

在顶部应该有一个UIButton(或类似),允许用户切换之间展开和折叠。

展开后,我希望能够放置其他UIView(例如日历),并且在折叠时周围的控件应该向上移动。

没有人有任何想法如何实现这个简单 - 小白这里:(

回答

7

子类视图控制器,并有两种方法,你的按钮就可以火象“崩溃”和“扩大”,这可能让你开始:您可以动态地分配新的选择,以UIButtons:

[button addTarget:self action:@selector(eventMethod:) 
    forControlEvents:UIControlEventTouchUpInside]; 

代码:

#define COLAPSED_HEIGHT 30 

-(void)expand 
    { 
     CGRect s= [self getScrerenBoundsForCurrentOriantation]; 
     CGRect f = self.view.frame; 
     f.origin.y =s.size.height-self.view.frame.size.height; 
     [UIView beginAnimations:@"expand" context:NULL]; 
     [UIView setAnimationDelegate:self]; 
     [UIView setAnimationDidStopSelector:@selector(animationFinished:finished:context:)];  
     self.view.frame=f; 

      //CHANGE YOUR EXPAND/COLLAPSE BUTTON HERE 

     [UIView commitAnimations]; 
     self.thumbScrollerIsExpanded=YES; 
    } 

    -(void)collapseView 
    { 
     //re-factored so that this method can be called in ViewdidLoad 
     CGRect s= [self getScrerenBoundsForCurrentOriantation]; 
     CGRect f = self.view.frame; 

     f.origin.y =(s.size.height-COLAPSED_HEIGHT); 

     self.view.frame = f; 

     self.thumbScrollerIsExpanded=NO; //thumbScrollerIsExpanded is a BOOL property 
    } 


    - (void)collapse 
    {  
     [UIView beginAnimations:@"collapse" context:NULL]; 
     [UIView setAnimationDelegate:self]; 
     [UIView setAnimationDidStopSelector:@selector(animationFinished:finished:context:)];  
     [self collapseView]; 
      //CHANGE YOUR EXPAND/COLLAPSE BUTTON HERE  
     [UIView commitAnimations]; 

    } 


-(CGRect)getScrerenBoundsForCurrentOriantation 
{ 
    return [self getScrerenBoundsForOriantation:[[UIDevice currentDevice] orientation]]; 
} 


-(CGRect)getScrerenBoundsForOriantation:(UIInterfaceOrientation)_orientation 
{ 
    UIScreen *screen = [UIScreen mainScreen]; 
    CGRect fullScreenRect = screen.bounds; // always implicitly in Portrait orientation.   

    if (UIInterfaceOrientationIsLandscape(_orientation)) 
    { 
     CGRect temp; 
     temp.size.width = fullScreenRect.size.height; 
     temp.size.height = fullScreenRect.size.width; 
     fullScreenRect = temp;  
    } 

    return fullScreenRect; 
} 

- (void)animationFinished:(NSString *)animationID finished:(BOOL)finished context:(void *)context 
{ 

    if ([animationID isEqualToString:@"expand"]) 
    { 
    //example 
    } 
else if ([animationID isEqualToString:@"collapse"]) 
    { 
    //example 
    } 
} 
0

你可以尝试添加一个UIView(无论是在厦门国际银行或程序)关闭屏幕een,然后使用UIView动画将其滑入您的主查看区域。

该按钮将有一个IBAction,它将切换动画(滑入/滑出)。你可以将它滑出屏幕,然后将UIView的隐藏属性设置为true。当您回想起IBAction时,请检查视图的隐藏属性是否为真。如果是的话,你知道要播放它的动画,如果没有,那么你就播放滑出的动画。