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Quellcode

package com.example2.myapplication;


import android.os.Bundle;

import android.app.Activity;

import android.util.Log;

import android.view.GestureDetector;

import android.view.Menu;

import android.view.MotionEvent;

import android.widget.Toast;


public class lesefenster extends Activity {


    private GestureDetector gestureDetector;


    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.test);


        gestureDetector = new GestureDetector(new SwipeGestureDetector());

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.lesefenster, menu);

        return true;

    }

    @Override

    public boolean onTouchEvent(MotionEvent event) {

        if (gestureDetector.onTouchEvent(event)) {

            return true;

        }        return super.onTouchEvent(event);

    }
    public void onLeftSwipe() {


    }
    public void onRightSwipe() {

        // Do something    }

}
// Private class for gestures

//Quelle: http://www.eridem.net/android-tip-010-left-and-right-swipe-gesture-events

 class SwipeGestureDetector

        extends GestureDetector.SimpleOnGestureListener {

    // Swipe properties, you can change it to make the swipe    // longer or shorter and speed    private static final int SWIPE_MIN_DISTANCE = 120;

    private static final int SWIPE_MAX_OFF_PATH = 200;

    private static final int SWIPE_THRESHOLD_VELOCITY = 200;


    @Override

    public boolean onFling(MotionEvent e1, MotionEvent e2,

                           float velocityX, float velocityY) {

        try {

            float diffAbs = Math.abs(e1.getY() - e2.getY());

            float diff = e1.getX() - e2.getX();


            if (diffAbs > SWIPE_MAX_OFF_PATH)

                return false;


            // Left swipe

            if (diff > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {

                lesefenster.this.onLeftSwipe();

                // Right swipe

            } else if (-diff > SWIPE_MIN_DISTANCE

                    && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {

                lesefenster.this.onRightSwipe();

            }        } catch (Exception e) {

            Log.e("YourActivity", "Error on gestures");

        }        return false;

    }}