如何获得确定要转到哪个视图控制器的按钮？

Question

I'm trying to use Xcode to take the value of a usertype input and do one of three things: if the usertype is invalid it will stay on the current view controller and tell the user the credentials are invalid, if it is valid and "admin" it will go to the user settings, and if it is "user" or null it will go to the order list.

I already have the if statements built, just not sure how to specify what view controller to go to.

Answer 1

I didn't really understand your question, but can't you simply allocate the view like this:

if(!error) {
   ViewController *viewcont = [[ViewController alloc]initWithNibName:@"ViewController" bundle:nil];
    [self presentViewController:viewcont animated:NO completion:nil];
} else {
 ViewController2 *viewcont2 = [[ViewController2 alloc]initWithNibName:@"ViewController2" bundle:nil];
    [self presentViewController:viewcont2 animated:NO completion:nil];
}

Answer 2

If you are using navigation controller

if(!error) {
   ViewController *view1 = [[ViewController alloc]initWithNibName:@"ViewController" bundle:nil];
[self.navigationController pushViewController:view1 animated:YES];
} else {
 ViewController2 *view2 = [[ViewController2 alloc]initWithNibName:@"ViewController2" bundle:nil];
[self.navigationController pushViewController:view2 animated:YES];
}

Otherwise use this

if(!error) {
   ViewController *view1 = [[ViewController alloc]initWithNibName:@"ViewController" bundle:nil];
    [self presentViewController:view1 animated:NO completion:nil];
} else {
 ViewController2 *view2 = [[ViewController2 alloc]initWithNibName:@"ViewController2" bundle:nil];
    [self presentViewController:view2 animated:NO completion:nil];
}

Remember: this solution will not work if your views are not xnib files, I mean if you are using storyboard