Animation builder factory for Android Viewer

AnimationBuilder.java

import android.content.Context;
import android.support.annotation.AnimRes;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;

/**
 * HOW TO USE
 * AnimationBuilder.from(getActivity())
                            .setAnimRes(R.anim.rotate2)
                            .delay(1000)
                            .start(viewer);
 * Created by namlh on 15/04/2015.
 */
public class AnimationBuilder {

    AnimationBuilder(){
    }

    public static AnimationCreator from(Context context){
        return new AnimationCreator(context);
    }

    public static class AnimationCreator{
        private final Context context;
        private int animRes;
        private OnAnimationFinishedListener onFinishedListener;
        private int delay =0;
        private boolean isForceStart = false;

        AnimationCreator(Context context){
            this.context=context;
        }

        public AnimationCreator setAnimRes(@AnimRes int animRes){
            this.animRes = animRes;
            return this;
        }

        public AnimationCreator onFinished(OnAnimationFinishedListener listener){
            this.onFinishedListener = listener;
            return this;
        }

        public AnimationCreator delay(int milisecond){
            this.delay = milisecond;
            return this;
        }

        public AnimationCreator forceStart(boolean isForce){
            this.isForceStart = isForce;
            return this;
        }

        public void start(final View view){
            view.postDelayed(new Runnable() {
                @Override
                public void run() {
                    Animation currentAnim = view.getAnimation();
                    if (currentAnim !=null && !currentAnim.hasEnded()){
                        if (isForceStart){
                            currentAnim.cancel();
                        }
                        else {
                            return;
                        }
                    }

                    Animation animation = AnimationUtils.loadAnimation(context, animRes);
                    animation.setAnimationListener(new Animation.AnimationListener() {
                        @Override
                        public void onAnimationStart(Animation animation) {
                        }

                        @Override
                        public void onAnimationEnd(Animation animation) {
                            if (onFinishedListener != null) onFinishedListener.onFinished(view);
                        }

                        @Override
                        public void onAnimationRepeat(Animation animation) {
                        }
                    });
                    view.startAnimation(animation);
                }
            }, delay);
        }
    }

    public interface OnAnimationFinishedListener {
        void onFinished(View v);
    }

}