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392 CHAPTER 10: Android Animation: Making Your UI Designs Move

Notice that my animation duration values “sync” with each other; that is, 4500 goes into 9000
exactly twice and 2250 goes into 9000 four times and into 4500 exactly twice as well.

Setting up Your Hybrid Animation via Java Code

Let’s add this new animation to your Java code next, first by adding an Animation object named
lightShipAnim to hold the animation data that you just created, and then adding method calls inside
of the third ImageButton’s event handling structure to remove the other animation setup(s) and
replace them with your latest creation.

1. Since you have an Animation object declared, add a comma after
   spaceShipAnim, and add the lightShipAnim to your list of declared Animation
   objects, as shown in Figure 10-35. Then copy and paste the spaceShipAnim
   instantiation line of code again underneath itself, change spaceShipAnim to
   lightShipAnim, and change the R.anim reference from anim_andromeda to
   reference anim_lightshipset instead. The new Animation object instantiation
   code should look like the following:

lightShipAnim = AnimationUtils.loadAnimation(this,R.anim.anim_lightshipset);

Figure 10-35. Add a second lightShipAnim Animation object declaration, and instantiate it using .loadAnimation( )