UIViewController and Orientation am I heading in the right direction? - iphone

Question

I have spent the last several hours trying to get this to work and I can't so I need to know if what I am trying to do is the correct thing. Its driving me mad!
My goal is to have a ViewController that detects orientation change. When it's portrait it shows a view with a UITableView, when its landscape it shows a UIView with content that I will programmatically create.
In my parent viewcontroller I have:
- (void)viewDidLoad
{
[super viewDidLoad];
TableDataViewController *tableDataController = [[TableDataViewController alloc]
initWithNibName:#"TableDataViewController"
bundle:nil];
self.tableDataViewController = tableDataController;
[self.view insertSubview: tableDataController.view atIndex:0];
[tableDataController release];
}
This loads my view containing the table view and the controller that goes with it. The user then rotates the device and the function:
- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toOrientation
duration:(NSTimeInterval)duration
{
if (toOrientation == UIInterfaceOrientationPortrait) {
NSLog(#"PerformAnalysisViewController: Gone to Potrait");
}
if ((toOrientation == UIInterfaceOrientationLandscapeLeft) ||
(toOrientation == UIInterfaceOrientationLandscapeRight)) {
NSLog(#"PerformAnalysisViewController: Gone to Landscape");
// Load new view here
CGRect frame = [[UIScreen mainScreen] applicationFrame];
UIView *horizView = [[[HorizView alloc]
initWithFrame:frame] autorelease];
[self setView:horizView];;
}
}
will trigger depending. However it doesn't trigger? Is this because control has passed to the Subview I have inserted in the viewDidLoad? If so how do I get it back? Do I have to get it to detect orientation and then remove itself from the superview?
If that was then working would the new view be added as I have it above? I have tried reading the Apple documentation but I can't make this work.
All help greatly appreciated.
Mike

Answer 1

I am using the willRotateToInterfaceOrientation method in order to handle UI rotation:
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration {
if( interfaceOrientation == UIInterfaceOrientationPortrait ||
interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown ) {
self.backgroundImageView.image = [UIImage imageNamed:#"vertical.png"];
}
else {
self.backgroundImageView.image = [UIImage imageNamed:#"horizontal.png"];
}
}
Please check, that your Info.plist supports more than one orientation and that you have implemented shouldAutorotateToInterfaceOrientation:interfaceOrientation by returning YES.