MaximAlien

NSLog(@"Frame: %@", NSStringFromCGRect(customView.frame));

MaximAlien

// Builder.h

#import <Foundation/Foundation.h>

@interface ObjectBuilder : NSObject

@property (nonatomic, copy) NSString *name;
@property (nonatomic, copy) NSNumber *age;

@end

MaximAlien

// Singleton.h

#import <Foundation/Foundation.h>

@interface Singleton : NSObject

+ (Singleton *)sharedInstance;

@end

MaximAlien

NSInteger randomNumber = arc4random() % 3;

switch (randomNumber)
{
  case 0:
    break;
                
  case 1:
    break;
                

MaximAlien

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
    view.backgroundColor = [UIColor redColor];
    [self.view addSubview:view];
    
    UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handler:)];
    [tapGestureRecognizer setNumberOfTapsRequired:1];

MaximAlien

[UIView animateWithDuration:1.0f animations:^{
        
}];
    
[UIView animateWithDuration:1.0f animations:^{
        
} completion:^(BOOL finished) {
        
}];
    

MaximAlien

UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
imageView.image = [UIImage imageNamed:@"custom_image"];
imageView.contentMode = UIViewContentModeScaleAspectFit;
imageView.bounds = CGRectInset(imageView.frame, 20.0f, 20.0f);
[self.navigationController.navigationBar addSubview:imageView];

MaximAlien

// For UIViewController inside UINavigationController
- (void)viewWillLayoutSubviews
{
    [super viewWillLayoutSubviews];
    
    self.navigationController.view.superview.bounds = CGRectMake(0, 0, 300, 300);
    self.navigationController.view.superview.layer.cornerRadius = 2.0f;
}

// Usual presentation

MaximAlien

CABasicAnimation *rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
rotationAnimation.duration = 2.0f;
rotationAnimation.removedOnCompletion = NO;
rotationAnimation.additive = YES;
rotationAnimation.fromValue = [NSNumber numberWithFloat:0];
rotationAnimation.toValue = [NSNumber numberWithFloat:M_PI];
rotationAnimation.fillMode = kCAFillModeForwards;
    
[self.customView.layer addAnimation:rotationAnimation forKey:@"rotationAnimation"];

MaximAlien

UIViewController *viewController = [[UIViewController alloc] init];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentViewController:navigationController animated:YES completion:nil];