package com.example.flinggesturedemo;

import android.os.Bundle;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
/*
A swipe becomes a fling based on ending velocity and whether
the affected element has crossed a threshold (or point past which
an action can be undone). A drag maintains contact with an element,
so reversing the direction of the gesture will drag the element
back across the threshold.
 */
public class MainActivity extends AppCompatActivity {
    GestureDetector gestureDetector;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        gestureDetector = new GestureDetector(this, new GestureListener());
    }
    private class GestureListener extends GestureDetector.SimpleOnGestureListener {
        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            Toast.makeText(MainActivity.this, "Fling", Toast.LENGTH_SHORT).show();
            return super.onFling(e1, e2, velocityX, velocityY);
        }
    }
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        gestureDetector.onTouchEvent(event);
        return super.onTouchEvent(event);
    }
}