addSubview animation

Question

I have main UIView where I display different data. Then I put a button, which displays subview like this:

- (IBAction) buttonClicked:(id)sender {     UIView *newView = [[UIView alloc] initWithFrame:CGRectMake(25,25,50,20)];     UILabel *newLabel = [[UILabel alloc] initWithFrame:CGRectMake(25,25,50,25)];     newLabel.text = @"some text";     [newView addSubview:newLabel];      [self.view addSubview:newView];     [newLabel release];     [newView release]; } 

newView appears fine, but it doesn't animate itself any way, it just appears immediately. How can I add some kind of animation when newView appears? Like zoom or slide down or something like that. Is there some simple code?

Answer 1

[UIView transitionWithView:containerView duration:0.5         options:UIViewAnimationOptionTransitionCurlUp //change to whatever animation you like         animations:^ { [containerView addSubview:subview]; }         completion:nil]; 

Answer 2

Hi You could use the UIView Animations:

[newView setFrame:CGRectMake( 0.0f, 480.0f, 320.0f, 480.0f)]; //notice this is OFF screen! [UIView beginAnimations:@"animateTableView" context:nil]; [UIView setAnimationDuration:0.4]; [newView setFrame:CGRectMake( 0.0f, 0.0f, 320.0f, 480.0f)]; //notice this is ON screen! [UIView commitAnimations]; 

The SDK will now figure this out for you and animate the view to the positions you gave it. This works for most properties of UIViews: alpha, scale, bounds, frames, etc.

There are also build in animations as flip and curl:

[UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight                            forView:newView                             cache:YES];  [self.navigationController.view addSubview:settingsView.view]; [UIView commitAnimations]; 

Hope this helps out getting you started:)