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In this example, we will use Cocos2d’s scripted animation to create a bouncing ball animation. This example assumes familiarity with setting up a simple cocos2d project.  Please review the previous guides if necessary.  The example below is based on the cocos2d example named Click And Move which came with the cocos2d package.

Step1

File->New Project.  Select Window-Based Application.  Name the project BouncingCocos.

Step2

Get an image to be used as the bouncing-ball and add it into Resources group.  The one I am using below, downloaded from: http://noobr.net/2009/02/15-smiley-icon-sets-express-yourself/

Step3

Include Cocos2d files into the project (alternatively, you can link to the library if you have built the library as described here). To include the files, Control-Click the project name on the Group & Files node, then include files from the Cocos2d distribution that you have.

Navigate into your Cocos2d distribution (wherever you extracted the Cocos2d sources into, mine is at Macintosh HD::cocos2d-iphone-0.7.1 folder.
Add these sub-folders into BouncingCocos project:
cocos2d and external/Chipmunk/src

Step4

Add the code into BouncingCocosAppDelegate.m.

#import "BouncingCocosAppDelegate.h"
#import "Cocos2d.h"
@implementation BouncingCocosAppDelegate

@synthesize window;
- (void) applicationDidFinishLaunching:(UIApplication*)application
{
	// Init the window
	window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

	// Set to the landscape mode
	[[Director sharedDirector] setLandscape: YES];

	// Attach the OpenGL view to a window
	[[Director sharedDirector] attachInView:window];

	// Create a sprite and load our image into it (substitute the image name with yours)
	Sprite *ballSprite = [Sprite spriteWithFile: @"ico2.png"];
	// I am scaling my image because it's too large
	ballSprite.scale=0.1;
	[ballSprite setPosition: cpv(0, 0)];

	// The scripted animation call is here.
	// It's using JumpTo animation.  See JumpTo docs for explanation of the parameters
	[ballSprite runAction:
		[JumpTo actionWithDuration:4
					position:cpv(window.bounds.size.height, 0)
					height:100
					jumps:4]
		];

	ColorLayer* layer = [ColorLayer layerWithColor: 0xffff00ff];
	[layer addChild: ballSprite z:0 tag:1];

	// Create a Scene object
	Scene *scene = [Scene node];
	// Add the Layer into Scene
	[scene addChild: layer z:-1];
	// Make the Scene active
	[[Director sharedDirector] runWithScene: scene];

	[window makeKeyAndVisible];

}

- (void)dealloc {
    [window release];
    [super dealloc];
}

@end

The code uses runAction on a Sprite object.

Step5

Run and Build.

You can download the source here (includes Cocos2d library) here.