uialertcontroller

问题 I have a UIActionSheet in my application. I want to change the background color of actionsheet buttons and the font of the buttons. I made a search found below code: for (UIView *_currentView in actionSheet.subviews) { if ([_currentView isKindOfClass:[UIButton class]]) { //DO YOUR WORK } } but this code is not working on ios 8. for ios I found below code too: [[UIView appearanceWhenContainedIn:[UIAlertController class], nil] setTintColor:[UIColor redColor]]; but this code only changes the

问题 I'm making an app that uses HealthKit. The app must not work on an iPad, and as such my viewDidLoad method contains an if/then/else statement to show an alert to iPad users. This is my code: if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone && SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"8.0") && [HKHealthStore isHealthDataAvailable] == 1) { ... } else { UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Whoops!" message:@"Looks like

问题 I'm making an app that uses HealthKit. The app must not work on an iPad, and as such my viewDidLoad method contains an if/then/else statement to show an alert to iPad users. This is my code: if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone && SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"8.0") && [HKHealthStore isHealthDataAvailable] == 1) { ... } else { UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Whoops!" message:@"Looks like

问题 I have a function to display an UIAlertController. Below the title and the text, I would like to display an animation image per image. I have 13 images to loop. func alertDownloadInProgress(text:String, sender:UIViewController) -> UIAlertController { var alert = UIAlertController(title: "Alert", message: text, preferredStyle: UIAlertControllerStyle.Alert) sender.presentViewController(alert, animated: true, completion: nil) return alert } Is it possible to use an UIAlertController or I have to

问题 I am trying to make an in-app popup alert using swift and I have run into an error that I know nothing about. Here is the code I use to present my alert: let welcomeAlert = UIAlertController(title: "Welcome!", message: “message here”, preferredStyle: UIAlertControllerStyle.Alert) welcomeAlert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil)) self.presentViewController(welcomeAlert, animated: true, completion: nil) println("welcome alert displayed!") The

问题 Color change in attributedMessage and attributedTitle doesn't work. Is there a solution for it? Works well on iOS 12 but no longer works on iOS 13. What can be done or is there a solution or a modification? Here's the full snippet: NSString *title=NSLocalizedString(@"Title",nil); NSString *message=NSLocalizedString(@"Message",nil); UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleActionSheet];

问题 Color change in attributedMessage and attributedTitle doesn't work. Is there a solution for it? Works well on iOS 12 but no longer works on iOS 13. What can be done or is there a solution or a modification? Here's the full snippet: NSString *title=NSLocalizedString(@"Title",nil); NSString *message=NSLocalizedString(@"Message",nil); UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleActionSheet];

问题 I want show an alert with a spinner in subTitle like: I tryed, without success: this.alertCtrl.create({ title: 'Verificando', subTitle: '<ion-spinner name="dots"></ion-spinner> foo bar' }); Any ideas ? 回答1: Unfortunately AlertController from Ionic 2 doesn't offer a way by default to embed HTML code inside the title/subtitle attribute. Will this alert be used only when you are loading something? On that case I suggest that you use the LoadingController component, with LoadingController it's

问题 After iOS 8, changing my implementation to UIAlertController instead of UIAlertView is giving me some headaches. The dismissal takes around a full second before the UI becomes responsive after clicking a button. It means users think there's something wrong. Am I the only one suffering from this? It's across several apps, and true for an implementation as simple as this. I tried this in a new blank project. - (IBAction)showAlertView { [[[UIAlertView alloc] initWithTitle:@"test" message:@"test"

问题 I have created an alertcontroller with action sheet and two buttons. As the actionsheet will be having rounded edges, on the screen, on four corners, white color is appearing. I tried changing the background color of the alertcontroller, but that is making the action sheet to rectangular with sharp border instead of rounded borders. I tried setting the view background color to clear color Tried setting the border radius too. Here is my action sheet. I want those white edges invisible. Also,