private void setupKeys() {
        flyCam.setMoveSpeed(50);
        inputManager.addMapping("wireframe", new KeyTrigger(KeyInput.KEY_T));
        inputManager.addListener(actionListener, "wireframe");
        inputManager.addMapping("triPlanar", new KeyTrigger(KeyInput.KEY_P));
        inputManager.addListener(actionListener, "triPlanar");
    }
Demonstrates how to use terrain on Android.
The only difference is it uses a much smaller heightmap, so it won't use
all the device's memory.

@author bowens
jme3-examples/src/main/java/jme3test/terrain/TerrainTestAndroid.java