iOS Day 16

shouldAutorotate.m

-(BOOL) shouldAutorotate {
    return NO;
}

supportedInterfaceOrientations.m

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskPortrait;
}

ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
@property (weak, nonatomic) IBOutlet UILabel *lblInfo;

@end

viewDidLoad.m

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
    
    UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
    
    if (orientation == UIInterfaceOrientationLandscapeLeft) {
        NSLog(@"Landscape left");
        self.lblInfo.text = @"Landscape left";
    } else if (orientation == UIInterfaceOrientationLandscapeRight) {
        NSLog(@"Landscape right");
        self.lblInfo.text = @"Landscape right";
    } else if (orientation == UIInterfaceOrientationPortrait) {
        NSLog(@"Portrait");
        self.lblInfo.text = @"Portrait";
    } else if (orientation == UIInterfaceOrientationPortraitUpsideDown) {
        NSLog(@"Upside down");
        self.lblInfo.text = @"Upside down";
    }
}

willRotateToInterfaceOrientation.m

-(void) willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft) {
        NSLog(@"Landscape left");
        self.lblInfo.text = @"Landscape left";
    } else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight) {
        NSLog(@"Landscape right");
        self.lblInfo.text = @"Landscape right";
    } else if (toInterfaceOrientation == UIInterfaceOrientationPortrait) {
        NSLog(@"Portrait");
        self.lblInfo.text = @"Portrait";
    } else if (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) {
        NSLog(@"Upside down");
        self.lblInfo.text = @"Upside down";
    }
}