Heilum

1.Override CommonActivity's startActivity and finish
 @Override
    public void startActivity(Intent intent) {
        super.startActivity(intent);
        overridePendingTransition(R.anim.from_right_in, R.anim.from_left_out);
    }

    @Override
    public void finish() {
        super.finish();

catehstn

/**
  * A one color image.
  * @param width
  * @param height
  * @param color
  * @return A one color image with the given width and height.
  */
public static Bitmap createImage(int width, int height, int color) {
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);