You can write this if-else
statement in - applicationDidFinishLaunchingWithOptions:
.
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"LoggedIn"])
{
// User already Logged In.
}
else
{
// Go to Login View.
}
In your loginViewController
, after Successful Login add this line :
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"LoggedIn"];