Прокрутка ImageView

Question

Я пытаюсь переместить свой ImageView вверх, когда смахиваю вверх. Он работает, но единственное, что мой ObjectAnimation перемещает ImageView в соответствии с позицией X, Y изображения, а не расстоянием. Я хотел бы иметь возможность перемещать изображение с расстояния 50dp, например, по X или Y. Не могли бы вы мне помочь?

package com.example.swipe2;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.view.GestureDetectorCompat;

import android.animation.Animator;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;


public class MainActivity extends Activity implements GestureDetector.OnGestureListener {
    public static final int SWIPE_THRESHOLD = 100;
    public static final int SWIPE_VELOCITY_THRESHOLD = 100;
    private GestureDetector mDetector;
    private ImageView pablo;
    long animationDuration = 1000;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Instantiate the gesture detector with the
        // application context and an implementation of
        // GestureDetector.OnGestureListener
        mDetector = new GestureDetector(this, this);
        pablo = (ImageView) findViewById(R.id.pablo);
        pablo.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(final View view, final MotionEvent event) {
                mDetector.onTouchEvent(event);
                return true;
            }
        });

    }

    @Override
    public boolean onDown(MotionEvent motionEvent) {
        return true;
    }

    @Override
    public void onShowPress(MotionEvent motionEvent) {

    }

    @Override
    public boolean onSingleTapUp(MotionEvent motionEvent) {
        return false;
    }

    @Override
    public boolean onScroll(MotionEvent motionEvent, MotionEvent motionEvent1, float v, float v1) {
        return false;
    }

    @Override
    public void onLongPress(MotionEvent motionEvent) {

    }

           @Override
    public boolean onFling(MotionEvent downEvent, MotionEvent moveEvent, float velocityX, float                 velocityY) {
        boolean result = false;
        float diffY = moveEvent.getY() - downEvent.getY();
        float diffX = moveEvent.getX() - downEvent.getX();
        // which was greater?  movement across Y or X?
        if (Math.abs(diffX) > Math.abs(diffY)) {
            // right or left swipe
            if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
                if (diffX > 0) {
                    onSwipeRight();
                } else {
                    onSwipeLeft();
                }
                result = true;
            }
        } else {
            // up or down swipe
            if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
                if (diffY > 0) {
                    onSwipeBottom();
                } else {
                    onSwipeTop();
                }
                result = true;
            }
        }

        return result;
    }

    private void onSwipeTop() {
        Toast.makeText(this, "Swipe Top", Toast.LENGTH_SHORT).show();

        ObjectAnimator animatorTOP = ObjectAnimator.ofFloat(pablo,"Y",  +10);
        animatorTOP.setDuration(animationDuration);
        AnimatorSet animatorSet = new AnimatorSet();
        animatorSet.playTogether(animatorTOP);
        animatorSet.start();
    }

    private void onSwipeBottom() {
        Toast.makeText(this, "Swipe Bottom", Toast.LENGTH_SHORT).show();
    }

    private void onSwipeLeft() {
        Toast.makeText(this, "Swipe Left", Toast.LENGTH_SHORT).show();
    }

    private void onSwipeRight() {
        Toast.makeText(this, "Swipe Right", Toast.LENGTH_SHORT).show();

    }
}