ios - alerta - uialertcontroller swift 4

¿Cómo puedo mostrar alerta de alerta con indicador de actividad?

Question

Quiero mostrar alerta con mensaje: "Cargando datos" e indicador de actividad de giro. ¿Cómo puedo hacer esto?

Answer 1

Agregue esto en su archivo .h UIAlertView *connectingAlert;

Y agrega estas dos funciones en tus archivos .m

//show loading activity.
- (void)startSpinner:(NSString *)message {
// Purchasing Spinner.
if (!connectingAlert) {
connectingAlert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(message,@"")
message:nil
delegate:self
cancelButtonTitle:nil
otherButtonTitles:nil];
connectingAlert.tag = (NSUInteger)300;
[connectingAlert show];
UIActivityIndicatorView *connectingIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
connectingIndicator.frame = CGRectMake(139.0f-18.0f,50.0f,37.0f,37.0f);
[connectingAlert addSubview:connectingIndicator];
[connectingIndicator startAnimating];
}
}
//hide loading activity.
- (void)stopSpinner {
if (connectingAlert) {
[connectingAlert dismissWithClickedButtonIndex:0 animated:YES];
connectingAlert = nil;
}
// [self performSelector:@selector(showBadNews:) withObject:error afterDelay:0.1];
}

luego llame

[self startSpinner:@"Your message........"];
[self stopSpinner];

Answer 2

En swift 3

let loadingAlertController = UIAlertController(title: "Loading", message: nil, preferredStyle: .alert)
let activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: .gray)
activityIndicator.translatesAutoresizingMaskIntoConstraints = false
loadingAlertController.view.addSubview(activityIndicator)
let xConstraint = NSLayoutConstraint(item: activityIndicator, attribute: .centerX, relatedBy: .equal, toItem: loadingAlertController.view, attribute: .centerX, multiplier: 1, constant: 0)
let yConstraint = NSLayoutConstraint(item: activityIndicator, attribute: .centerY, relatedBy: .equal, toItem: loadingAlertController.view, attribute: .centerY, multiplier: 1.4, constant: 0)
NSLayoutConstraint.activate([ xConstraint, yConstraint])
activityIndicator.isUserInteractionEnabled = false
activityIndicator.startAnimating()
let height: NSLayoutConstraint = NSLayoutConstraint(item: loadingAlertController.view, attribute: NSLayoutAttribute.height, relatedBy: NSLayoutRelation.equal, toItem: nil, attribute: NSLayoutAttribute.notAnAttribute, multiplier: 1, constant: 80)
loadingAlertController.view.addConstraint(height);
self.present(loadingAlertController, animated: true, completion: nil)

Answer 3

puede agregar una etiqueta y un indicador de actividad como subvistas de su vista de alerta. Tienes que hacer algo como esto ...

- (IBAction)showAlertWithActivity:(id)sender{
alerta = [[UIAlertView alloc] initWithTitle:@"Guardando datos..."
message:@"/n"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:nil];
UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
spinner.center = CGPointMake(139.5, 75.5); // .5 so it doesn''t blur
[alerta addSubview:spinner];
[spinner startAnimating];
[alerta show];
[self performSelector:@selector(close) withObject:self afterDelay:1];
}
-(void)close{
[alerta dismissWithClickedButtonIndex:0 animated:YES];
}

Answer 4

puede agregar una etiqueta y un indicador de actividad como subvistas de su vista de alerta. tienes que hacer algo como esto

myAlertView = [[UIAlertView alloc] initWithTitle:@"Loading" message:@"/n/n"
delegate:self
cancelButtonTitle:@""
otherButtonTitles:@"OK", nil];
UIActivityIndicatorView *loading = [[UIActivityIndicatorView alloc]
initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
loading.frame=CGRectMake(150, 150, 16, 16);
[myAlertView addSubview:loading];
[myAlertView show];

..mejor para usar un UIActionSheet en esta situación ...

Answer 5

Esto funciona en iOS 7

addSubView no funciona en UIAlertView en iOS 7 y superior. Prueba esto en su lugar

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Loading data" message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles: nil];
UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
[indicator startAnimating];
[alertView setValue:indicator forKey:@"accessoryView"];
[alertView show];

y despedirlo

[alertView dismissWithClickedButtonIndex:0 animated:YES];

Answer 6

NOTA: Esta solución no funcionará en iOS 7 y superior.

Esta es mi opinión sobre ella:

alertView = [[UIAlertView alloc] initWithTitle:@"Submitting Entry"
message:@"/n"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:nil];
UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
spinner.center = CGPointMake(139.5, 75.5); // .5 so it doesn''t blur
[alertView addSubview:spinner];
[spinner startAnimating];
[alertView show];

y descartar en código utilizando:

[alertView dismissWithClickedButtonIndex:0 animated:YES];

Answer 7

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Alarm" message:@"" delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
UIActivityIndicatorView *loading = [[UIActivityIndicatorView alloc]
initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
loading.frame=CGRectMake(125, 50, 36, 36);
[loading startAnimating];
[alert addSubview:loading];
[alert show];