Question

我可以看到很多过渡动画：从左到右，从右到左，褪色，但我怎样才能从上到下进行过渡？

感谢您的帮助

Answer 1

尝试解决这个问题...... 添加QuartzCore框架

#import <QuartzCore/QuartzCore.h>

CATransition *transDown=[CATransition animation];
[transDown setDuration:0.5];
[transDown setType:kCATransitionPush];
[transDown setSubtype:kCATransitionFromBottom];
[transDown setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];

[Boottom_view.layer addAnimation:transDown forKey:nil];

Answer 2

[[self navigationController] presentModalViewController:modalViewController animated:YES];

并将其隐藏起来：

[self.navigationController dismissModalViewControllerAnimated:YES];

Answer 3

您可以使用Core Animation，您使用的是什么类型的对象？

基本上，要淡化对象，请执行以下操作：

[[objectName animator] setOpacity: 1];

请记住，首先需要在动画开始前将不透明度设置为0等。希望这是你想要的。

Answer 4

您将视图框架设置为屏幕外的起始位置，然后通过一些动画将框架置于适当的位置。

CGRect originalFrame = [detailsView frame];
CGRect offscreenFrame = originalFrame;
offscreenFrame.origin.y -= offscreenFrame.size.height; 
detailsView.frame = offscreenFrame;  //Send the frame above screen        

//Add view here if necessary to an unscrew view
// [aSuperView addSubview:detailsView];

[UIView beginAnimations:@"BringIn" context:nil];
[UIView setAnimationDuration:.3];
[UIView setAnimationDelegate:self];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
detailsView.frame = originalFrame
[UIView commitAnimations];

如何制作向下滑动过渡动画？

4 个答案: