A minimalist working alternative for the ReturnKeyTriggersButton component

Scripts/InputFieldEnterSubmit.cs

@@ -0,0 +1,30 @@
+/// Usage: Add this component to the input and add the
+/// function to execute to the EnterSubmit event of this script
+
+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.Events;
+
+[RequireComponent(typeof(InputField))]
+public class InputFieldEnterSubmit : MonoBehaviour
+{
+
+    [System.Serializable]
+    public class EnterSubmitEvent : UnityEvent<string> { }
+
+    public EnterSubmitEvent EnterSubmit;
+    private InputField _input;
+
+    void Awake()
+    {
+        _input = GetComponent<InputField>();
+        _input.onEndEdit.AddListener(OnEndEdit);
+    }
+
+    public void OnEndEdit(string txt)
+    {
+        if (!Input.GetKeyDown(KeyCode.Return) && !Input.GetKeyDown(KeyCode.KeypadEnter)) return;
+        EnterSubmit.Invoke(txt);
+    }
+
+}