Question

I’m having a bit of an issue here switching between my view controllers.

I followed the advice on this page:

View Controllers: How to switch between views programmatically?

My setup is as follows; I have a splash screen with a button on it and that button loads my second view controller. I have IntroductionViewController as the root view and the button says “Load Website”, this Load Website event I want to switch to WebsiteViewController.

On IntroductionViewController I have set up the button as an IBOutlet and IBAction which is NSLogging fine on Click so I know the method is working.

What I need is when you click Load Website it opens WebsiteViewController. What I have so far is credit of the question above:

IntroductionViewController.h

#import <UIKit/UIKit.h>
#import "WebsiteViewController.h"

@class WebsiteViewController;

@interface IntroductionViewController : UIViewController {
    IBOutlet UIButton *websiteButton;
    IBOutlet WebsiteViewController *websiteViewController;
}
@property (nonatomic, retain) UIButton *websiteButton;
@property (nonatomic, retain) WebsiteViewController *websiteViewController;

-(IBAction)loadWebsite:(id)sender;

@end

IntroductionViewController.m

#import "IntroductionViewController.h"

@implementation IntroductionViewController

@synthesize websiteButton;
@synthesize websiteViewController;

-(IBAction)loadWebsite:(id)sender{
    if(self.websiteViewController.view.superview == nil)
    {
        [self.view addSubview:websiteViewController.view];
    }   
}

The line: [self.view addSubview:websiteViewController.view]; doesn’t do anything, but as I’ve said previously, this function is NSLogging fine. I’m not sure how to proceed with this.

Answer 1

Possible you may have forgot to bind the IBOutlet to your WebsiteViewController. And for both Orientation support you can use

 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOr‌​ientation 
 { 
      // Overriden to allow any orientation. 
      return ((interfaceOrientation==UIInterfaceOrientationLandscapeLeft) || (interfaceOrientation==UIInterfaceOrientationLandscapeRight)); 
 }

One more thought for your orientation problem, you can setFrame to your view while displaying like

 - [yourViewController.view setFrame:CGRectMake(0,0,1024,768)] //iPad and 
 - [yourViewController.view setFrame:CGRectMake(0,0,480,320)] //iPhone.

May be this works.

Thax.