IOS UI learning tutorial: Use UIImageView control to create animations

// Define buttons, picture controls, variable array objects  UIButton *actionbuttom;
  UIImageView *imageMove;
  NSMutableArray *imgsarray;

// image animation// Initialize UIImageView, the size is the same as the View  imageMove = [[UIImageView alloc]initWithFrame:];
// Set the initialization image of UIImageView   = [UIImage imageNamed:@"cat_eat0000.jpg"];
// Load the UIImageView to the page  [ addSubview:imageMove];
// Set the interactivity of UIImageView to yes   = YES;  
  
// Create function button// Initialize button  actionbuttom = [[UIButton alloc]initWithFrame:CGRectMake(100, 680, 218, 50)];
// Set button background color   = [UIColor yellowColor];
// Set button title  [actionbuttom setTitle:@"Start Play" forState:UIControlStateNormal];
// Set button text color  [actionbuttom setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
// Add a trigger event for the button  [actionbuttom addTarget:self action:@selector(startmove:) forControlEvents:UIControlEventTouchUpInside];
// Add button to the page  [imageMove addSubview:actionbuttom];
  
  
  
// Initialize a variable array to store pictures  imgsarray = [[NSMutableArray alloc]initWithCapacity:40];
// Loop to get forty pictures from the resource and add to imgsarray.  for (int x=0; x<40; x++) {
    NSString *imgname = [NSString stringWithFormat:@"cat_eat00%.",x];
    UIImage *img = [UIImage imageNamed:imgname];
    [imgsarray addObject:img];

//Trigger event of button-(void)startmove:(id)sender{
// Set the animation duration   = 2;
// Set the animation image source as an image array   = imgsarray;
// Set the number of animation repetitions, 0 is infinite loop, 1 is repeated 1 time   = 1;
// Start playing  [imageMove startAnimating];
  
}