Adobe Flash CS4 Professional for Windows and Macintosh: Visual QuickStart Guide

Animation with Motion Tweening

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Creating a Motion Tween

Creating a Bouncing Ball

with Motion Tweening

It’s easy to do a version of the standard

bouncing-ball animation with motion tween-

ing. A motion tween uses a single instance of

the ball. You place it in a tween span in the

Timeline and tell Flash how to move that

instance by adding position keyframes.

To set up a motion-tween:

1. Open a new Flash document.

 e document contains one layer and one

keyframe ( frame 1).

2. To preset the motion tween’s duration,

select the frame that marks your desired

span length—for example, frame 10—and

choose Insert > Timeline > Frame.

Flash removes the di ...