objective-c - 如何为 UIView 制作与 presentModalViewController 相同的动画(即 [self presentModalViewController :child animated:YES];)

Question

我是 ios 开发的新手，现在我正在我的应用程序上做一些动画。在我的应用程序中，主视图底部有一个菜单，有两个按钮，一个用于隐藏菜单，另一个用于显示菜单。我的需要菜单的显示和隐藏功能是否正常工作 [self presentModalViewController:menuView animated:YES]; 和 [self dismissModalViewControllerAnimated:YES]; 函数(即点击显示按钮，从 main 底部弹出 menuView查看并单击隐藏按钮，向下移动菜单 View )。我知道基本的动画，比如:

[UIView beginAnimations:@"ShowHideView" context:nil];

[UIView setAnimationCurve:UIViewAnimationOptionOverrideInheritedCurve];

[UIView setAnimationDuration:1.0];

[UIView setAnimationDelegate:self];
[menuView setAlpha:0];

[UIView commitAnimations];

如果有人知道，请帮助我。

Answer 1

当您点击 showMenuView 时，执行以下操作，

- (IBAction)showView:(id)sender 
{
    [self.view addSubview: menuView];
    CGRect rect = menuView.frame;
    rect.origin.y = 480;
    menuView.frame = rect;
    [UIView beginAnimations:@"ShowView" context:nil];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView setAnimationDuration:0.5]; 
    rect.origin.y = 0;
    menuView.frame = rect;
    [UIView commitAnimations];
}

隐藏起来，

- (IBAction)hideView:(id)sender 
{
    CGRect rect = menuView.frame;
    [UIView beginAnimations:@"HideView" context:nil];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView setAnimationDuration:0.5]; 
    [UIView setAnimationDelegate:self];
    [UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
    rect.origin.y = 480;
    menuView.frame = rect;
    [UIView commitAnimations];
}

- (void)animationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context
{
    [menuView removeFromSuperview];
}