Shooting works with PC Keyboard, but not Mobile Touch Controls?!

I solved the Problem myself. It took me long to figure out, but the Solution was to, instead of directly calling the Shooting Code when the if-Condition Matches, simply moving the Shooting Code in a Method and then calling that Method with the if-Statement that used to call the Shooting Code directly.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityStandardAssets.CrossPlatformInput;
 
 public class PlayerShoot : MonoBehaviour {
 
     public PlayerMovementNew _playerMovement; //Needed in order to access the Direction the Player Faces(Left or Right)
 
     //public Animator animator;
 
     public GameObject WeaponDefaultLeft; //Default Weapon, Facing Left
     public GameObject WeaponDefaultRight; //Default Weapon, Facing Right
     public Transform WeaponSpawn;
 
     public float WaitTime; //The Time you need to Wait before Shooting again.
     public float WaitedTime; //The Time you have waited Since the last Shot.
 
     //Update is called once per frame
     void Update () {
         
         WaitedTime += Time.deltaTime; //Always increase the WaitedTime.
         
         if ( CrossPlatformInputManager.GetButton ("Fire1") || Input.GetButton ("Fire1") )
         {
             PlayerShooting();
         }
     }
 
     
     void PlayerShooting()
     {
         if (WaitedTime > WaitTime) { //If you waited longer than the WaitTime...
                 //...and you Face left:
                 if (_playerMovement.playerDirection == -1)
                 {
                     //animator.Play ("Shoot", 0); //Set Animation to Shoot
                     GameObject NewWeapon = Instantiate (WeaponDefaultLeft, WeaponSpawn); //Shoot Left! ...
                     NewWeapon.transform.parent = null; //...and make the Projectile independent
                 } //...and you Face right:
                 else if (_playerMovement.playerDirection == 1) {
                     //animator.Play ("Shoot", 0); //Set Animation to Shoot
                     GameObject NewWeapon = Instantiate (WeaponDefaultRight, WeaponSpawn); //Shoot Right! ...
                     NewWeapon.transform.parent = null; //...and make the Projectile independent
                 }
                 WaitedTime = 0; //Reset WaitedTime
                 //animator.Play ("Shoot", 0); //Set Animation to Idle
             }
     }
 
     
         //Debug GUI. This Part has nothing to do with the Shooting itself, but just Informations about the Shooting, that shouldn't be visible unless for debugging:
     void OnGUI()
     {
         GUI.Box(new Rect(10,10,200,120), "Shooting Info");
         if ( CrossPlatformInputManager.GetButton ("Fire1") || Input.GetButton ("Fire1") )
         {
             if(GUI.Button(new Rect(20,40,180,20), "Shooting: Yes")){}
         }else
         {
             if(GUI.Button(new Rect(20,40,180,20), "Shooting: No")){}
         }
         if(GUI.Button(new Rect(20,70,180,20), "WaitTime: " + WaitTime)){}
         if(GUI.Button(new Rect(20,100,180,20), "WaitedTime: " + WaitedTime)){}
     }
     
 }