¿Alternativa a UIAlertView para iOS 9?

objective-c ios9

Question

UAlertView está en desuso en iOS 9 y versiones posteriores. ¿Cuál sería una alternativa?

UIAlertView *new = [[UIAlertView alloc] initWithTitle:@"Success" message:@"Your InApp Purchases were successfully restored" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[new show];

Answer 1

A menudo se obtiene información detallada, incluida la sugerencia de reemplazo al hacer clic en el símbolo que muestra la declaración de clase / método.

En el caso de UIAlertView podrás ver

"UIAlertView está en desuso. Utilice UIAlertController con un styler preferido de UIAlertControllerStyleAlert"

Answer 2

He usado "UIAlertController" en iOS 8 y versiones posteriores. Vamos a ver:

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Success" message:@"Your InApp Purchases were successfully restored" preferredStyle:UIAlertControllerStyleAlert];

Y añada botones:

UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action){
           //do something when click button
}];

Recuerda:

[alertController addAction:okAction];

Entonces muéstralo:

[self presentViewController:alertController animated:YES completion:nill];

Si quieres mostrar un actionheep, cambias

"preferredStyle:UIAlertControllerStyleActionSheet"

Answer 3

Hice una categoría para eso:

+ (void)alertViewWithTitle:(NSString *)aTitle message:(NSString *)aMessage viewController:(UIViewController *) aVC
{
    UIAlertController * alert = [UIAlertController
                                 alertControllerWithTitle:aTitle ? aTitle : @""
                                 message:aMessage
                                 preferredStyle:UIAlertControllerStyleAlert];

    UIViewController *topVC = aVC ? aVC : [UIApplication sharedApplication].keyWindow.rootViewController;
    [topVC presentViewController:alert animated:YES completion:nil];
}

Los parámetros aTitle y aVC son opcionales, pero se debe usar aVC si se conocen.

PD: evita el "nuevo" como nombre de variable esta es una palabra reservada, en realidad no sé si se compilará.

Answer 4

Puede usar este código para reemplazar una vista de alerta:

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Title" message:@"Message" preferredStyle:UIAlertControllerStyleAlert];           
[alertController addAction:[UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil]];
[self presentViewController:alertController animated:YES completion:nil];

Si necesitas múltiples acciones puedes usar:

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Title" message:@"Message" preferredStyle:UIAlertControllerStyleAlert];
[alertController addAction:[UIAlertAction actionWithTitle:@"Button 1" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    // action 1
}]];
[alertController addAction:[UIAlertAction actionWithTitle:@"Button 2" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    // action 2
}]];
[alertController addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    [self dismissViewControllerAnimated:YES completion:nil];
}]];           
[self presentViewController:alertController animated:YES completion:nil];

Answer 5

UIAlertController existe desde iOS 8.

Answer 6

  UIAlertController * alert=   [UIAlertController
                             alertControllerWithTitle:@"Info"
                             message:@"You are using UIAlertController"
                               preferredStyle:UIAlertControllerStyleAlert];

   UIAlertAction* ok = [UIAlertAction
                    actionWithTitle:@"OK"
                    style:UIAlertActionStyleDefault
                    handler:^(UIAlertAction * action)
                    {
                        [alert dismissViewControllerAnimated:YES completion:nil];

                    }];
  UIAlertAction* cancel = [UIAlertAction
                         actionWithTitle:@"Cancel"
                       style:UIAlertActionStyleDefault
                       handler:^(UIAlertAction * action)
                       {
                           [alert dismissViewControllerAnimated:YES completion:nil];
                        }];
 [alert addAction:ok];
 [alert addAction:cancel];

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

Answer 7

UIAlertController * alert=   [UIAlertController
                                    alertControllerWithTitle:@"My Title"
                                    message:@"Enter User Credentials"
                                    preferredStyle:UIAlertControllerStyleAlert];

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