CODEWITHSUNDEEP
iosobjective-cuialertcontrollerxcode13
Siva
Siva

Reputation: 700

UIAlertController title and message not displaying in iphone 12

I displayed UIAlertController with UIAlertControllerStyleActionSheet style. When building with XCode 13 UIAlertController title and message not working on iPhone 12. It's working on other devices. Same code previously working on iPhone 12.

-(void)alertSheetUI{
dispatch_async(dispatch_get_main_queue(), ^{
    UIAlertController *actionSheet = [UIAlertController alertControllerWithTitle:@"Static Title" message:@"Static Message" preferredStyle:UIAlertControllerStyleActionSheet];
    
    [actionSheet addAction:[UIAlertAction actionWithTitle:@"Data 1" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    }]];
    [actionSheet addAction:[UIAlertAction actionWithTitle:@"Data 2" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    }]];
    [actionSheet addAction:[UIAlertAction actionWithTitle:@"Data 3" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
    }]];
    
    [actionSheet addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
        
        [[[UIApplication sharedApplication] delegate].window.rootViewController dismissViewControllerAnimated:YES completion:^{
        }];
    }]];
    [[[UIApplication sharedApplication] delegate].window.rootViewController presentViewController:actionSheet animated:NO completion:nil];
});}

iPhone 12

enter image description here

iPhone SE enter image description here

View hierarchy shows title and message as white color. So only the title and message are not visible. I try to set the title and message as green Using attributed text using the below code. But the title and message color are not updated on other devices also. Other devices displayed as grey.

Updated Code

-(void)alertSheetUI{

dispatch_async(dispatch_get_main_queue(), ^{

        NSString * string = @"Static Title";
        NSMutableAttributedString * attrString = [[NSMutableAttributedString alloc] initWithString:@"Static Title"];
        [attrString addAttribute:NSForegroundColorAttributeName
                                 value:[UIColor greenColor] range:NSMakeRange(0, [string length])];
        UIAlertController *actionSheet = [UIAlertController alertControllerWithTitle:@"Static Title" message:@"Static Message" preferredStyle:UIAlertControllerStyleActionSheet];
        [actionSheet setValue:attrString forKey:@"attributedTitle"];
        [actionSheet setValue:attrString forKey:@"attributedMessage"];

        [actionSheet addAction:[UIAlertAction actionWithTitle:@"Data 1" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        }]];
        [actionSheet addAction:[UIAlertAction actionWithTitle:@"Data 2" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        }]];
        [actionSheet addAction:[UIAlertAction actionWithTitle:@"Data 3" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        }]];

        [actionSheet addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {

            [[[UIApplication sharedApplication] delegate].window.rootViewController dismissViewControllerAnimated:YES completion:^{
            }];
        }]];
        [[[UIApplication sharedApplication] delegate].window.rootViewController presentViewController:actionSheet animated:NO completion:nil];
    });}

enter image description here

Upvotes: 8

Views: 372

Answers (1)

Ptit Xav
Ptit Xav

Reputation: 3219

Your code does ask the uiapplication to display the alert . You may try to use :

 dispatch_async(dispatch_get_main_queue(), ^{
    [self presentViewController:actionShert animated:YES completion:nil];
});

The main async queue is only needed when showing or presenting the alert.

Upvotes: 0

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