presentModalViewController in iOS6

问题:

In my app's code I am still presenting viewcontrollers modally with presentModalViewController. This is deprecated in iOS 6. Does that mean this method has no effect on devices running iOS 6?

If yes, how can I make my app present viewcontrollers modally on iOS 6? My Xcode version does not support iOS 6, so all new methods in iOS 6 are unavailable to me.

回答1:

Deprecated means that you shouldn't use this method anymore. It still works, but it might be completely removed in one of the next updates.

For displaying view controllers modally, you can use the new -presentViewController:animated:completion: method introduced in iOS 5.0.
For dismissing the new method is -dismissViewControllerAnimated:completion:.

https://developer.apple.com/documentation/uikit/uiviewcontroller

回答2:

If you have

[self presentModalViewController:aController animated:YES];

change it to

[self presentViewController:aController animated:YES completion:nil];