Move Player (y-Axis) on click button does not work

ButtonMovement SCRIPT:

using UnityEngine; using System.Collections;

public class ButtonMovement : TouchManager { public bool moveRight = false; public float moveSpeed = 5.0f; public GameObject player = null;

 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {
     TouchInput();
 }

 void OnFirstTouch()
 {
     if (moveRight)
     {
         player.transform.Translate (Vector2.right * moveSpeed * Time.deltaTime);
     }
     else if (!moveRight)
     {
         player.transform.Translate (-Vector2.right * moveSpeed * Time.deltaTime);
     }
 }
 void OnSecondTouch()
 {
     if (moveRight)
     {
         player.transform.Translate(Vector2.right * moveSpeed * Time.deltaTime);
     }
     else if (!moveRight)
     {
         player.transform.Translate(-Vector2.right * moveSpeed * Time.deltaTime);
     }
 }

}

TouchManager SCRIPT:

using UnityEngine; using System.Collections;

public class TouchManager : MonoBehaviour { public static bool guiTouch = false;

 public void TouchInput ()
 {
     //GUI TEXTURES ONLY
     if(GetComponent<GUITexture>() != null)
     {
         if (GetComponent<GUITexture>().HitTest(Input.GetTouch(0).position))//0=first touch
         {
             guiTouch = true;

             switch (Input.GetTouch(0).phase)
             {
                 case TouchPhase.Began:
                     SendMessage("OnFirstTouchBegan");
                     SendMessage("OnFirstTouch");
                     break;
                 case TouchPhase.Moved:
                     SendMessage("OnFirstTouchMoved");
                     SendMessage("OnFirstTouch");
                     break;
                 case TouchPhase.Stationary:
                     SendMessage("OnFirstTouchStationary");
                     SendMessage("OnFirstTouch");
                     break;
                 case TouchPhase.Ended:
                     SendMessage("OnFirstTouchEnded");
                     SendMessage("OnFirstTouch");
                     guiTouch = false;
                     break;
             }
         }
         if (GetComponent<GUITexture>().HitTest(Input.GetTouch(1).position))//1=second touch
         {
             guiTouch = true;

             switch (Input.GetTouch(1).phase)
             {
                 case TouchPhase.Began:
                     SendMessage("OnSecondTouchBegan");
                     SendMessage("OnSecondTouch");
                     break;
                 case TouchPhase.Moved:
                     SendMessage("OnSecondTouchMoved");
                     SendMessage("OnSecondTouch");
                     break;
                 case TouchPhase.Stationary:
                     SendMessage("OnSecondTouchStationary");
                     SendMessage("OnSecondTouch");
                     break;
                 case TouchPhase.Ended:
                     SendMessage("OnSecondTouchEnded");
                     SendMessage("OnSecondTouch");
                     guiTouch = false;
                     break;
             }
         }
     }
 }

}

I have a 2d rigidbody Player which is falling on the ground. Both got box collider 2d. I add ButtonMovement to button left and button right and checked the move right [x] on button right. I added my Player to both scripts in my Buttons.

By pressing those Buttons, nothing happens. Any help? Its an Android app!