iOS app crashes upon opening when switching rotation views - cocoa-touch

Question

I am trying to develop an app in XCode that will switch to a new view upon rotation.
Here is the code for view1controller.h:
#import UIKit/UIKit.h
#interface TestViewController : UIViewController {}
IBOutlet UIView *portrait;
IBOutlet UIView *landscape;
#property(nonatomic,retain) UIView *portrait;
#property(nonatomic,retain) UIView *landscape;
#end
and here is the code for view1controller.m:
#import "view1controller.h"
#implementation TestViewController
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if(((interfaceOrientation == UIInterfaceOrientationLandscapeLeft) || (interfaceOrientation == UIInterfaceOrientationLandscapeRight)))
{
self.view = landscape;
} else if (((interfaceOrientation == UIInterfaceOrientationPortrait) || (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown))) {
self.view = portrait;
}
return YES;
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
#synthesize portrait,landscape;
#end
Anyway so the app opens but it crashes upon opening.

Answer 1

Try something like:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if(interfaceOrientation == UIInterfaceOrientationLandscapeLeft)
{
self.view = landscapeleft;
}
if (interfaceOrientation == UIInterfaceOrientationPortrait)
{
self.view = portrait;
}
if (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
{
self.view = portraitupsidedown;
}
if (interfaceOrientation == UIInterfaceOrientationLandscapeRight)
{
self.view = landscapeleft;
}
return YES;
}

Answer 2

Your brackets in your header are misplaced.
#interface TestViewController : UIViewController {
IBOutlet UIView *portrait;
IBOutlet UIView *landscape;
}
#property(nonatomic,retain) UIView *portrait;
#property(nonatomic,retain) UIView *landscape;
#end
Also, #synthesize portrait,landscape; needs to go under #implementation TestViewController
#implementation TestViewController
#synthesize portrait,landscape;
Notice the UIView's in this image:

Answer 3

I would do the following:
if(((interfaceOrientation == UIInterfaceOrientationLandscapeLeft) || (interfaceOrientation == UIInterfaceOrientationLandscapeRight)))
{
[portrait removeFromSuperview];
[self.view addSubview:landscape];
} else if (((interfaceOrientation == UIInterfaceOrientationPortrait) || (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown))) {
[landscape removeFromSuperview];
[self.view addSubview:portrait];
}
Hope this helps!