Submit a string with a simple InputLabel and Button! (Unity 5.1+)

TextForm.cs

using System;
using UnityEngine;
using UnityEngine.Assertions;
using UnityEngine.Events;
using UnityEngine.UI;

public class TextForm : MonoBehaviour
{
	//Since we're using UnityEvent<T0> we need to implement the string type
	public class TextEvent : UnityEvent<string> { }
	
	public TextEvent TextSubmitted;
	
	[SerializeField] //Display private variable in Inspector
	private InputField _inputField;
	
	[SerializeField]
	private Button _submitButton;
	
	private string _inputFieldValue;
	
	void Start()
	{
		//http://blogs.unity3d.com/2015/08/25/the-unity-assertion-library/
		Assert.IsNotNull(_inputField, "TextForm Requires InputField UI Component!");
		Assert.IsNotNull(_submitButton, "TextForm Requires Button UI Component!");
	
		//Listen to value changes, and events
		_submitButton.onClick.AddListener(SubmitButton);
		_inputField.onValueChanged.AddListener(InputFieldValueChanged);
	}
	
	/// <summary>
	/// Updates cached value as the InputField changes
	/// </summary>
	/// <param name="value">InputField string</param>
	void InputFieldValueChanged(string value)
	{
		_inputFieldValue = value;
	}
	
	/// <summary>
	/// Calls the UnityEvent to fire with the value
	/// </summary>
	void SubmitButton()
	{
		TextSubmitted.Invoke(_inputFieldValue);
	}
}