Question

I am developing iOS game and need custom animation so I am using this method

    CGRect basketTopFrame = mainScreenView.frame;
basketTopFrame.origin.x = 320;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelay:.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
mainScreenView.frame = basketTopFrame;
[UIView commitAnimations];

in the .h file I have declared mainScreen like this

IBOutlet UIView *mainScreenView;

So in the IB I have put UIView in the view in the interface and hooked it up with mainScreenView

So in the mainViewScreen the view sometimes shows up sometimes doesn’t (works on the 2nd try) however when I remove the animation code it works perfectly fine..I don’t know what is happening any help would be appreciated thanks

edit
this is how I added the view

MainScreen *mainScreen = [[MainScreen alloc]initWithNibName:@"MainScreen" bundle:nil];
[mainScreenView addSubview:mainScreen.view];

Answer 1

I tried it in a sandbox project, and this worked for me:

- (IBAction)buttonTouched:(id)sender {
    myView.transform = CGAffineTransformMakeTranslation(-320, 0);

    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationDelay:.5];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
    myView.transform = CGAffineTransformMakeTranslation(0,0);
    [UIView commitAnimations];

}