title: How to use a gesture listener with libgdx, i need the basics
body: <p>I am wondering how to use a gesture listener and I want to detect in which direction the swipe is going on and I want to move the texture. My game is almost done and is ready to be on the android Play Store but I need to use swipe as an input. <br>I have looked at many articles and many questions on stack overflow which are very similar, but I am a sixth grader and for me some of the explanations in stack overflow I have seen, or simply not understandable for me. May somebody please explain every single part of gesture Listener, how to set it up, how to detect the direction of the swipes.</p>
  
  <p>I do have it implemented though but some parts are simply not working.. 
  <code>public class PlayScreen extends InputListener implements Screen, InputProcessor, GestureListener{</code> 
  as you can see I have implemented the gesture listener </p>
  
  <pre><code>@Override
  public boolean touchDown(float x, float y, int pointer, int button) {
      // TODO Auto-generated method stub
      return false;
  }
  
  @Override
  public boolean tap(float x, float y, int count, int button) {
      // TODO Auto-generated method stub
      System.out.println("got tapped!");
      return true;
  }
  
  @Override
  public boolean longPress(float x, float y) {
      // TODO Auto-generated method stub
      return false;
  }
  
  
  
  @Override
      public boolean fling(float velocityX, float velocityY, int button) {
          // TODO Auto-generated method stub
          System.out.println(velocityX + ": " + velocityY);
           if(Math.abs(velocityX)&gt;Math.abs(velocityY)){
               if(velocityX&gt;0){
                       position5.x+=100;//x cordinate
               }else if (velocityX&lt;0){
                      position5.x-=100;
               } else {
                 // Do nothing.
               }
       }else{
  
  
       }
  return true; 
      }
  
  @Override
  public boolean pan(float x, float y, float deltaX, float deltaY) {
      // TODO Auto-generated method stub
      return false;
  }
  
  @Override
  public boolean panStop(float x, float y, int pointer, int button) {
      // TODO Auto-generated method stub
      return false;
  }
  
  @Override
  public boolean zoom(float initialDistance, float distance) {
      // TODO Auto-generated method stub
      return false;
  }
  
  @Override
  public boolean pinch(Vector2 initialPointer1, Vector2 initialPointer2,
          Vector2 pointer1, Vector2 pointer2) {
      // TODO Auto-generated method stub
      return false;
  }
  </code></pre>
  
  <p>I also put the following in my show method(I have implemented screen)</p>
  
  <pre><code>Gdx.input.setInputProcessor(new GestureDetector(0.0f, 0.0f,0.0f, 5f,new PlayScreen(game)));
  </code></pre>
  
  <p>Can somebody please explain what I am missing and give me a nice overview of the gesture listener?</p>