iphone - ...的UIImagePickerController使它从右边

Question

我要呈现的UIImagePickerController，但是当我这样做，它总是来自于自下而上的出现。有没有办法让它从右到左出现？

我已经试过这没有成功：

CATransition* transition = [CATransition animation]; 
transition.duration = 0.35f; 
transition.type = kCATransitionPush; 
transition.subtype = kCATransitionFromLeft; 
[self.navigationController.view.layer addAnimation:transition forKey:kCATransition]; 

[self.navigationController presentModalViewController:picker animated:YES]; 

感谢

Answer 1

我假设你正在通过调用presentModalViewController显示选择器：动画：和传球是为动画选项。

你可以做什么，而不是存在没有动画，而是涉及到使用自己的过渡动画的外观。下面的例子将提出从右侧：

CATransition *transition = [CATransition animation]; 
transition.duration = 0.5; 
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; 
transition.type = kCATransitionMoveIn; 
transition.subtype = kCATransitionFromRight; 
[self.view.window.layer addAnimation:transition forKey:nil]; 

[self presentModalViewController:pickerController animated:NO]; 

要使用这个你需要#import <QuartzCore/QuartzCore.h>和QuartzCore框架添加到项目中。