Views iOS example

gistfile1.m

-(void)ventanaCrear
{
    UIView *ventanaFondo = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    ventanaFondo.backgroundColor = [UIColor grayColor];
    [self.view addSubview:ventanaFondo];
    
    NSString *nombre = @"Creacion de un label";
    UILabel *lnombre = [[UILabel alloc] initWithFrame:CGRectMake(20, 0, 500, 100)];
    lnombre.backgroundColor = [UIColor clearColor];
    lnombre.font = [lnombre.font fontWithSize:25];
    lnombre.text = [NSString stringWithFormat:@"%@", nombre];
    [ventanaFondo addSubview:lnombre];

    UIButton *boton = [[UIButton alloc] initWithFrame:CGRectMake(20, 100, 100, 50)];
    [boton addTarget:self action:@selector(hola:) forControlEvents: UIControlEventTouchDown];
    [boton setTitle:@"Boton" forState:UIControlStateNormal];
    boton.backgroundColor = [UIColor blackColor];
    [boton setTitleColor: [UIColor whiteColor] forState: UIControlStateNormal];
    [ventanaFondo addSubview:boton];

    UIImageView *imagen = [[UIImageView alloc]initWithImage:[UIImage imageNamed:[NSString stringWithFormat:@"migesa.jpg"]]];
    imagen.frame = CGRectMake(10, 200, 115, 115);
    [ventanaFondo addSubview:imagen];
}