How to validate the characters of the strings to the characters typing via mobile keyboard?

Questions & Answers
1

Hey guys i am working on the prototype like this:link text

how can i validate the characters like in this game. right now i am doing this

nameInputField.onValidateInput += delegate(string input, int charIndex, char addedChar)
{
return MyValidate (addedChar);
};

private char MyValidate(char charToValidate)
{

			//Checks if a dollar sign is entered....
		if (charToValidate == textChar*)*

  •   		{*

  •   			// ... if it is change it to an empty character.*

  •   			//charToValidate = '\0';*

  •   			//*

  •   		}*

  •   		else*

  •   		{*

  •   			charToValidate = '\0';*

  •   			//index = i ;*

  •   			//charToValidate = textChar[i-1] ;*

  •   		}*

  •   return charToValidate;*

  • }*
    And if he types wrong he is not allowed to type, Like if I need to type"Hello" , and user press ‘e’ key on the start then nothing should happen, User can only type ‘h’ then ‘e’ then ‘l’ … so on,
    but this seems to be not working for me please Help!
    iam using unity 5 and its ui inputfield.

2

If I understand your question properly then following should work. I am using OnValueChange event of InputField.

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Validate : MonoBehaviour {

	private InputField inputField;
	private string expectedString = "Hello";
	// Use this for initialization
	void Start () {
		inputField = GameObject.Find ("InputField").GetComponent<InputField>();
	}
	
	// Update is called once per frame
	void Update () {
	
	}

	public void OnValueChanged()
	{	
		if (inputField.text.Length <= expectedString.Length ) // if length exceeds expectedString then we will remove current char
		{ 
			if(inputField.text.Length > 0) // this is for safe side if we remove everything from inputField
			{ 
				if (!inputField.text [inputField.text.Length - 1].Equals (expectedString [inputField.text.Length - 1])) //if current char is not same as expected char 
				{

					inputField.text = inputField.text.Substring (0, inputField.text.Length - 1); // this statement will remove last char
				}
			}
		} else {
			inputField.text = inputField.text.Substring (0, inputField.text.Length - 1);
		}

	}
}