iphone – 如何创建可折叠的UIView

概述我需要创建一种可扩展且可折叠的UIView,但我无法支付第三方控件的费用. 这基本上是我希望它表现的方式： 在顶部应该有一个UIButton(或类似的),允许用户在展开和折叠之间切换. 展开后,我希望能够放置其他UIView(例如日历),当折叠时,周围的控件应该向上移动. 有没有人有任何想法如何实现这简单 – noob在这里:( 对ViewController进行子类化,并且有两个方法,按钮可以像 我需要创建一种可扩展且可折叠的UIVIEw,但我无法支付第三方控件的费用.

这基本上是我希望它表现的方式：

在顶部应该有一个UIbutton(或类似的),允许用户在展开和折叠之间切换.

展开后,我希望能够放置其他UIVIEw(例如日历),当折叠时,周围的控件应该向上移动.

有没有人有任何想法如何实现这简单 – noob在这里:(

解决方法 对VIEwController进行子类化,并且有两个方法,按钮可以像’collapse’和’expand’一样触发,这可能会让你开始：你可以动态地为UIbuttons分配新的选择器：

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

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    }}

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