I was able to resolve the issue manually, seems like it is a bug with Xcode for now and I will file a radar report. To resolve the issue, follow the below steps: Navigate to project settings Under “App Icons and Launch Images” click on “Use Asset Catalog” Select “Migrate” on the popup that appears. … Read more
Add the next line to your code: // Swift: originaltagLbl.layer.masksToBounds = true // Objective C: originaltagLbl.layer.masksToBounds = YES; For information see this SO answer, or read documentation.
You have to wait until the [-CBCentralManagerDelegate centralManagerDidUpdateState:] callback has been called. And then, verify that the state is PoweredOn before you start scanning for peripherals.
This crash occurs due to a dangling pointer. When any variable or object is trying to access an object that’s already been deallocated, this crash occurs.
Please see the following code: -(void)viewDidLoad { [super viewDidLoad]; UISwitch *mySwitch = [[UISwitch alloc] initWithFrame:CGRectMake(130, 235, 0, 0)]; [mySwitch addTarget:self action:@selector(changeSwitch:) forControlEvents:UIControlEventValueChanged]; [self.view addSubview:mySwitch]; } – (void)changeSwitch:(id)sender{ if([sender isOn]){ NSLog(@”Switch is ON”); } else{ NSLog(@”Switch is OFF”); } }