Implement a checkbox using lottie animations

LottieCheckBox.java

import android.animation.Animator;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.Checkable;
import com.airbnb.lottie.LottieAnimationView;

public class LottieCheckBox extends LottieAnimationView implements Checkable, Animator.AnimatorListener {
  private boolean checked;
  private boolean isFirstLoad = true;
  private OnCheckedChangeListener listener;

  private static final String ANIMATION_ASSET = "animation-asset.json";

  public LottieCheckBox(Context context) {
    super(context);
    initLottieCheckBox();
  }

  public LottieCheckBox(Context context, AttributeSet attrs) {
    super(context, attrs);
    initLottieCheckBox();
  }

  public LottieCheckBox(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    initLottieCheckBox();
  }

  private void initLottieCheckBox() {
    setOnClickListener(v -> toggle());

    // If any images are required for the animation json
    setImageAssetsFolder("images/");

    loop(false);

    setAnimation(ANIMATION_ASSET, CacheStrategy.Weak);

    addAnimatorListener(this);
  }

  @Override public void setChecked(boolean checked) {
    this.checked = checked;

    if (isFirstLoad) {
      setInitState();
      isFirstLoad = false;
    } else {
      if (checked) {
        reverseAnimation();
      } else {
        playAnimation();
      }
    }
  }

  private void setInitState() {
    setProgress(checked ? 0 : 1f);
  }

  @Override public boolean isChecked() {
    return checked;
  }

  @Override public void toggle() {
    setChecked(!checked);
  }

  public void setOnCheckedChangeListener(OnCheckedChangeListener listener) {
    this.listener = listener;
  }

  @Override public void onAnimationStart(Animator animation) {

  }

  @Override public void onAnimationEnd(Animator animation) {
    if (listener != null) {
      listener.onCheckedChanged(this, checked);
    }
  }

  @Override public void onAnimationCancel(Animator animation) {

  }

  @Override public void onAnimationRepeat(Animator animation) {

  }

  public interface OnCheckedChangeListener {
    void onCheckedChanged(LottieCheckBox lottieCheckBox, boolean checked);
  }
}