Is it possible to customize the font and appearanc

问题:

I'm wondering if it's possible to customize in app alerts with the UIAlertController. I haven't seen anything that explicitly says that you can. Does anyone know of a way I can add a custom appearance, particularly with fonts on these alerts?

回答1:

You can do it with appearanceWhenContainedIn. To set up background color, here's an example:

[[UIView appearanceWhenContainedIn:UIAlertController.class, nil] setBackgroundColor:[UIColor yellowColor]];

Or tint color:

[[UIView appearanceWhenContainedIn:UIAlertController.class, nil] setTintColor:[UIColor whiteColor]];