Add an action to a button

When the user clicks the button and the tweened animation plays, you want the playhead to move to the end of the Button Animation Timeline and then stop. You'll use ActionScript to control playhead movement in a Timeline.

1. Add a new layer to the Button Animation Timeline and name it Actions.
2. On the Actions layer, add a keyframe to Frame 15 by pressing F6.
3. Open the Actions panel (Window > Development Panels > Actions) and if necessary, enlarge it to view both the Actions toolbox and the Script pane.
4. With Frame 15 of the Actions layer selected, go to the Global Functions > Timeline Control category of the Actions toolbox and double-click stop.

   The stop action lets you specify that the playhead stop when it reaches Frame 15.

   In the Button Animation Timeline, Frame 15 of the Actions layer now displays a small a, which indicates that an action is attached to that frame.

5. Click Scene 1, above the Stage, to exit symbol-editing mode and return to the main document.
6. Click the options menu control in the upper right of the Actions panel, and select Close Panel to close the panel.
7. Select Control > Enable Simple Buttons so you can test the animated button.
8. On the Stage, move the pointer over the button and click the button.
9. Select Control > Enable Simple Buttons to deselect that feature.