ios - 如何从右到左关闭模态 ViewController？

Question

在 Objective-C 中，我想从右到左关闭模态 ViewController。

现在我可以在模态上从左向右移动。但是我不知道如何像推屏转换一样从左到右关闭这个模态 VC。

这是从 a-ViewController 移动到 b-ViewController 的代码。

bViewController *nextVC = [[bViewController alloc] initWithNibName:nil bundle:nil];

CATransition *transition = [CATransition animation];
transition.duration = 0.5; 
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
transition.type = kCATransitionPush ; 
[transition setSubtype:kCATransitionFromLeft];
[[nextVC.view layer] addAnimation:transition forKey:@"TransitionTest"]; 
//[self presentViewController:nextVC animated:YES completion:nil];
//if it's possible, I want to use upside's cord.(don't addSubView) but I don't know how to do it)
[self.view addSubview:nextVC.view] ;

Answer 1

objective-C

CATransition *transition = [CATransition animation];
transition.duration = 0.4;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = kCATransitionPush;
transition.subtype = kCATransitionFromRight;
[self.view.window.layer addAnimation:transition forKey:nil];
[self dismissViewControllerAnimated:NO completion:nil]; 

swift 5

let transition = CATransition()
transition.duration = 0.5
transition.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
transition.type = CATransitionType.push
transition.subtype = CATransitionSubtype.fromRight
self.view.window!.layer.add(transition, forKey: nil)
self.dismiss(animated: false, completion: nil)