After implementing your logon handler, use a property to hold a reference to it in your AppDelegate singleton
#import <UIKit/UIKit.h> #import "MyLogonHandler.h" #import "MAFUIStyleParser.h" @interface AppDelegate : UIResponder <UIApplicationDelegate> @property (strong, nonatomic) UIWindow *window; @property (strong, nonatomic) MyLogonHandler *logonHandler; @end
#import "AppDelegate.h"
#import "MAFUIStyleParser.h"
@implementation AppDelegate
- (void)dealloc
{
    [_window release];
    [_logonHandler release];
    [super dealloc];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Load the styles for the cutomizable controls, should be called before any MAF* control and MAFLogonUI created
    [MAFUIStyleParser loadSAPDefaultStyle];
    self.logonHandler = [[MyLogonHandler alloc] init];
    return YES;
}
- (void)applicationDidBecomeActive:(UIApplication *)application
{
    // Execute logon operation, which will automatically present logon screen if needed.
    [self.logonHandler.logonManager logon];
}
…
@end