Show UIAlertController over keyboard

Question

In iOS 8 and lower show a UIActionSheet when keyboard is presented will present the action sheet over the keyboard. With iOS 9 this is no longer the case.

Answer 1

The answer supplied by Leo is broken as of iOS 11, because Apple now prevents you from setting a windowLevel above 10000000. A fix is to implement a custom UIWindow and override the windowLevel receiver:

@interface TopWindow : UIWindow @end

@implementation TopWindow
- (UIWindowLevel) windowLevel {
    return 20000000.000;
}
@end

// usage:
UIWindow* w = [[TopWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
w.rootViewController = [UIViewController new];
w.hidden = NO;

[w.rootViewController presentViewController:yourActionSheetController animated:YES completion:nil];

This approach should be backwards compatible, but haven't tested all known versions. Happy hacking!