Learn Android App Development by Wallace Jackson

Author:Wallace Jackson [Jackson, Wallace]
Language: eng
Format: epub, pdf
Tags: Computers, Programming, Hardware, Games, Mobile Devices
ISBN: 9781430257462
Publisher: Apress
Published: 2013-05-06T04:00:00+00:00

Figure 10-6. Configuring <scale> tag’s scaling definition parameters for the anim_scale_virus.xml file in Eclipse

Adding Java Code for the Scaling

Now it’s time to implement the scale Animation object in our AttackPlanet Java code. Add a line of space under the infectButton ImageButton object declaration and copy the two lines of code above it, Animation rotateBomb and bombButton.startAnimation( ) and paste them into that space.

Next change the Animation name to scaleVirus and set the infectButton startAnimation( ) method to call this scaleVirus Animation object, using the following two lines of Java code:

Animation scaleVirus = AnimationUtils.loadAnimation(this, R.anim.anim_scale_virus);

infectButton.startAnimation(scaleVirus);

This Java code implementing the scaleVirus is shown in Figure 10-7.

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