How do you create a UIImageView programmatically in Xcode

Question

I just want to make an UIImageView programmatically that displays a 20by20 dot at point (50,50).(The image of the dot is called draw.png). For some reason nothing shows up on the screen.

Heres my code:

- (void)viewDidLoad
{
UIImageView *dot =[[UIImageView alloc] initWithFrame:CGRectMake(50,50,20,20)];
dot.image=[UIImage imageNamed:@"draw.png"];
[self.view addSubview:dot];


[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib
}

Answer 1

First, make sure draw.png exists in your project and that you are referencing it exactly (so if it's draw.PNG you should put @"draw.PNG"). Also, call [super viewDidLoad] before everything.

- (void)viewDidLoad
{
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib

  UIImageView *dot =[[UIImageView alloc] initWithFrame:CGRectMake(50,50,20,20)];
  dot.image=[UIImage imageNamed:@"draw.png"];
  [self.view addSubview:dot];

}

Answer 2

Try this :-

 UIImageView *imageview = [[UIImageView alloc]
 initWithFrame:CGRectMake(50, 50, 20, 20)];
 [imageview setImage:[UIImage imageNamed:@"AppleUSA1.jpg"]];
 [imageview setContentMode:UIViewContentModeScaleAspectFit];
 [self.view addSubview:imageview];

Answer 3

In Swift :

   let imageView = UIImageView(frame: CGRect(x: 50, y: 50, width: 20, height: 20))
     imageView.image = UIImage(named: "draw.png")
     self.view.addSubview(imageView)