LoginVC.m:26:29: warning build: 'UIPopoverController' is deprecated: first deprecated in iOS 9.0 - UIPopoverController is deprecated. Popovers are now implemented as UIViewController presentations. Use a modal presentation style of UIModalPresentationPopover and UIPopoverPresentationController.
LoginVC.m:85:54: warning build: 'initWithRequest:delegate:' is deprecated: first deprecated in iOS 9.0 - Use NSURLSession (see NSURLSession.h)
LoginVC.m:101:42: warning build: 'CFURLCreateStringByAddingPercentEscapes' is deprecated: first deprecated in iOS 9.0 - Use [NSString stringByAddingPercentEncodingWithAllowedCharacters:] instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent (since each URL component or subcomponent has different rules for what characters are valid).
LoginVC.m:271:9: warning build: 'UI_USER_INTERFACE_IDIOM' is deprecated: first deprecated in iOS 13.0 - Use -[UIDevice userInterfaceIdiom] directly.
LoginVC.m:26:29: warning build: 'UIPopoverController' is deprecated: first deprecated in iOS 9.0 - UIPopoverController is deprecated. Popovers are now implemented as UIViewController presentations. Use a modal presentation style of UIModalPresentationPopover and UIPopoverPresentationController.
LoginVC.m:76:13: warning build: Unused variable 'postData'
LoginVC.m:85:54: warning build: 'initWithRequest:delegate:' is deprecated: first deprecated in iOS 9.0 - Use NSURLSession (see NSURLSession.h)
LoginVC.m:101:42: warning build: 'CFURLCreateStringByAddingPercentEscapes' is deprecated: first deprecated in iOS 9.0 - Use [NSString stringByAddingPercentEncodingWithAllowedCharacters:] instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent (since each URL component or subcomponent has different rules for what characters are valid).
LoginVC.m:271:9: warning build: 'UI_USER_INTERFACE_IDIOM' is deprecated: first deprecated in iOS 13.0 - Use -[UIDevice userInterfaceIdiom] directly.