How to create a looping animation by continuous translating an image?

Question

By using a repeating image like this,

is it possible to create animation like this?

Answer 1

I figured it out


MainActivity.java:

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final int screenWidth = getScreenDimensions(this).x;
        final int waveImgWidth = getResources().getDrawable(R.drawable.wave).getIntrinsicWidth();
        int animatedViewWidth = 0;
        while (animatedViewWidth < screenWidth) {
            animatedViewWidth += waveImgWidth;
        }
        animatedViewWidth += waveImgWidth;


        View animatedView = findViewById(R.id.animated_view);
        FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) animatedView.getLayoutParams();
        layoutParams.width = animatedViewWidth;
        animatedView.setLayoutParams(layoutParams);


        Animation waveAnimation = new TranslateAnimation(0, -waveImgWidth, 0, 0);
        waveAnimation.setInterpolator(new LinearInterpolator());
        waveAnimation.setRepeatCount(Animation.INFINITE);
        waveAnimation.setDuration(2500);

        animatedView.startAnimation(waveAnimation);
    }

    public static Point getScreenDimensions(Context context) {
        int width = context.getResources().getDisplayMetrics().widthPixels;
        int height = context.getResources().getDisplayMetrics().heightPixels;
        return new Point(width, height);
    }

}

activity_main.xml:

wave_repeating_bg.xml:

drawable-xxhdpi/wave.jpg: