private void initResource() {
Bitmap tileBitMap1 =
BitmapFactory.decodeResource(getResources(), R.drawable.hills_distance_0_portrait);
Bitmap tileBitMap2 =
BitmapFactory.decodeResource(getResources(), R.drawable.hills_distance_1_portrait);
Bitmap bgMap = BitmapFactory.decodeResource(getResources(), R.drawable.night_sky_portrait);
midBg = new BitmapDrawable(tileBitMap1);
forBg = new BitmapDrawable(tileBitMap2);
bg = new BitmapDrawable(bgMap);
midBg.setTileModeX(TileMode.REPEAT);
forBg.setTileModeX(TileMode.REPEAT);
bg.setTileModeX(TileMode.REPEAT);
}
private AnimationDrawable getAnimation(Bitmap bitmap) {
AnimationDrawable animation = new AnimationDrawable();
animation.setOneShot(false);
List<Bitmap> shiftedBitmaps = getShiftedBitmaps(bitmap);
int duration = 50;
for (Bitmap image : shiftedBitmaps) {
BitmapDrawable navigationBackground = new BitmapDrawable(getResources(), image);
navigationBackground.setTileModeX(TileMode.REPEAT);
animation.addFrame(navigationBackground, duration);
}
return animation;
}