Question

I need to implement a “Stay Signed in” or “Remember Me” check box to my iPhone app. How do I implement this? How do I store the user id?

Help is highly appreciated,

Thanks,
VKS

Answer 1

@VKS

• 1

  -(void)autologin:(id)sender
  {
      ischecked =!ischecked;
      UIButton *check = (UIButton*)sender;
      if(ischecked == NO)
          [check setImage:[UIImage imageNamed:@"checkbox1.png"] forState:UIControlStateNormal];
      else 
          [check setImage:[UIImage imageNamed:@"checkbox-pressed.png"] forState:UIControlStateNormal];
  }
  

• 2

  if(ischecked == YES)
  {
      NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
  
      [standardUserDefaults setObject:mainDelegate.uName forKey:@"username"];
      [standardUserDefaults setObject:mainDelegate.uPassword forKey:@"password"];
  
      [standardUserDefaults synchronize];
  }
  

and for retrieving the password/username

• 3

  if(isChecked == YES)
  {
      NSUserDefaults *standard = [NSUserDefaults standardUserDefaults];
      NSString *pass = [standard objectforkey:@"password"];
      NSString *user = [standard objectforkey:@"username"];
  }
  if ([pass == nil] || [user == nil])
  {
      // Show the alert view that user is not valid.
  }
  else 
  {
      // User is valid.
  }