如何在软键盘Unity3d中检测"done"按钮

Question

我在我的 android 应用程序中使用 InputField 来获取一个字符串，当我输入一个字符串时会弹出一个软键盘，但现在我想在用户按下 "done" 按钮时调用一个函数在软键盘中我该怎么做？
Unity3d 4.6.2f1

Answer 1

你应该可以通过使用这个来达到同样的效果：

function Update () {
        Event e = Event.currrent;
        if (e.type == EventType.keyDown && e.keyCode == KeyCode.Return)
            //Put in what you want here
    }

Answer 2

我发现的最佳方法是将 InputField 子类化。您可以在 bitbucket 上查看 UnityUI 的源代码。在该子类中，您可以访问受保护的 m_keyboard 字段并检查完成是否已按下且未取消，这将为您提供所需的结果。使用 EventSystem 的 "submit" 无法正常工作。将它集成到 Unity EventSystem 中时会更好。

像这样： SubmitInputField.cs

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using UnityEngine.Events;
using System;
using UnityEngine.EventSystems;
using UnityEngine.Serialization;

public class SubmitInputField : InputField
{
    [Serializable]
    public class KeyboardDoneEvent : UnityEvent{}

    [SerializeField]
    private KeyboardDoneEvent m_keyboardDone = new KeyboardDoneEvent ();

    public KeyboardDoneEvent onKeyboardDone {
        get { return m_keyboardDone; }
        set { m_keyboardDone = value; }
    }

    void Update ()
    {
        if (m_Keyboard != null && m_Keyboard.done && !m_Keyboard.wasCanceled) {
            m_keyboardDone.Invoke ();
        }
    }
}

Editor/SubmitInputFieldEditor.cs

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

[CustomEditor (typeof(SubmitInputField), true)]
[CanEditMultipleObjects]
public class SubmitInputFieldEditor : InputFieldEditor
{
    SerializedProperty m_KeyboardDoneProperty;
    SerializedProperty m_TextComponent;

    protected override void OnEnable ()
    {
        base.OnEnable ();
        m_KeyboardDoneProperty = serializedObject.FindProperty ("m_keyboardDone");
        m_TextComponent = serializedObject.FindProperty ("m_TextComponent");
    }


    public override void OnInspectorGUI ()
    {
        base.OnInspectorGUI ();
        EditorGUI.BeginDisabledGroup (m_TextComponent == null || m_TextComponent.objectReferenceValue == null);

        EditorGUILayout.Space ();

        serializedObject.Update ();
        EditorGUILayout.PropertyField (m_KeyboardDoneProperty);
        serializedObject.ApplyModifiedProperties ();

        EditorGUI.EndDisabledGroup ();
        serializedObject.ApplyModifiedProperties ();
    }
}

Answer 3

仍然适用于 2019.3！我只需要更改一些内容即可使用 TMP_InputField。

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