working swipe listner android just visit starting part of file how to use

OnSwipeTouchListener.java

package moozy.com.moozy.gestures;

import android.content.Context;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;

public class OnSwipeTouchListener implements OnTouchListener {


    //how to use ,
    // 1) just copy paste OnSwipeTouchListener.java file to project
    //2) use bellow code

    //kotlin code

    //      imageView.setOnTouchListener(object : OnSwipeTouchListener(myContext!!) {
    //            override fun onSwipeTop() {
    //                Toast.makeText(myContext!!, "top", Toast.LENGTH_SHORT).show()
    //            }
    //
    //            override fun onSwipeRight() {
    //                Toast.makeText(myContext!!, "right", Toast.LENGTH_SHORT).show()
    //            }
    //
    //            override fun onSwipeLeft() {
    //                Toast.makeText(myContext!!, "left", Toast.LENGTH_SHORT).show()
    //            }
    //
    //            override fun onSwipeBottom() {
    //                Toast.makeText(myContext!!, "bottom", Toast.LENGTH_SHORT).show()
    //            }
    //        })

    //java code


    //         imageView.setOnTouchListener(new OnSwipeTouchListener(MyActivity.this) {
    //             public void onSwipeTop() {
    //                 Toast.makeText(MyActivity.this, "top", Toast.LENGTH_SHORT).show();
    //             }
    //             public void onSwipeRight() {
    //                 Toast.makeText(MyActivity.this, "right", Toast.LENGTH_SHORT).show();
    //             }
    //             public void onSwipeLeft() {
    //                 Toast.makeText(MyActivity.this, "left", Toast.LENGTH_SHORT).show();
    //             }
    //             public void onSwipeBottom() {
    //                 Toast.makeText(MyActivity.this, "bottom", Toast.LENGTH_SHORT).show();
    //             }
    //
    //         });





    private final GestureDetector gestureDetector;

    public OnSwipeTouchListener (Context ctx){
        gestureDetector = new GestureDetector(ctx, new GestureListener());
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        return gestureDetector.onTouchEvent(event);
    }

    private final class GestureListener extends SimpleOnGestureListener {

        private static final int SWIPE_THRESHOLD = 100;
        private static final int SWIPE_VELOCITY_THRESHOLD = 100;

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

        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            boolean result = false;
            try {
                float diffY = e2.getY() - e1.getY();
                float diffX = e2.getX() - e1.getX();
                if (Math.abs(diffX) > Math.abs(diffY)) {
                    if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
                        if (diffX > 0) {
                            onSwipeRight();
                        } else {
                            onSwipeLeft();
                        }
                        result = true;
                    }
                }
                else if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
                    if (diffY > 0) {
                        onSwipeBottom();
                    } else {
                        onSwipeTop();
                    }
                    result = true;
                }
            } catch (Exception exception) {
                exception.printStackTrace();
            }
            return result;
        }
    }

    public void onSwipeRight() {
    }

    public void onSwipeLeft() {
    }

    public void onSwipeTop() {
    }

    public void onSwipeBottom() {
    }
}

Android: How to handle right to left swipe gestures