Unity3d 自动清除 Placeholder(default text)

最新推荐文章于 2025-08-13 13:45:34 发布

转载最新推荐文章于 2025-08-13 13:45:34 发布 · 1.9k 阅读

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本文介绍了一个Unity脚本示例，该脚本用于管理GUI中的TextField组件，并确保其能够正确地显示或隐藏默认字符串。当TextField获得焦点时，会清除默认文本；失去焦点且为空时，又会恢复默认文本。

public class Test : MonoBehaviour
{
    private string _default = "name";
    private string _player_name = "";
    private string _tooltip = "player_name_field";

    private void OnGUI()
    {
        GUI.BeginGroup(new Rect(0, 0, 200, 30), new GUIContent("", _tooltip));
        _player_name = GUI.TextField(new Rect(0, 0, 200, 30), _player_name);
        GUI.EndGroup();

        if (UnityEngine.Event.current.type == EventType.Repaint)
        {
            if (GUI.tooltip == _tooltip)
            {
                if (_player_name == _default) _player_name = "";
            }
            else
            {
                if (_player_name == "") _player_name = _default;
            }
        }
    }
}

see also: http://answers.unity3d.com/questions/215808/clear-textfield-from-default-string.html