当触摸屏键盘在具有 Unity 的 Android 上可见时，如何调整视图大小

本文关键字：何调整 调整 视图 键盘 触摸屏 Unity Android | 更新日期: 2023-09-27 18:32:25

在Unity中，我无法控制触摸屏键盘。TouchScreenKeyboard 类只有一个 Android 参数。

if(TouchScreenKeyboard.visible)
{ float keyboardHeight = TouchScreenKeyboard.area.height;
  // will resize the view here! But this return zero!
}

有没有其他方法可以知道安卓键盘的高度？

当触摸屏键盘在具有 Unity 的 Android 上可见时，如何调整视图大小

这应该可以解决问题（在这里找到）：

    public int GetKeyboardSize()
    {
        using(AndroidJavaClass UnityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
        {
            AndroidJavaObject View = UnityClass.GetStatic<AndroidJavaObject>("currentActivity").Get<AndroidJavaObject>("mUnityPlayer").Call<AndroidJavaObject>("getView");
            using(AndroidJavaObject Rct = new AndroidJavaObject("android.graphics.Rect"))
            {
                View.Call("getWindowVisibleDisplayFrame", Rct);
                return Screen.height - Rct.Call<int>("height");
            }
        }
    }

那是很久以前的事了，但以防万一有人再次为此苦苦挣扎，我设法为面板找到了解决方案一个使用此 MonoBehavior 类的 InputField。我将其附加到输入字段并链接了应调整大小的面板。

public class InputFieldForScreenKeyboardPanelAdjuster : MonoBehaviour {
    // Assign panel here in order to adjust its height when TouchScreenKeyboard is shown
    public GameObject panel;
    private InputField inputField;
    private RectTransform panelRectTrans;
    private Vector2 panelOffsetMinOriginal;
    private float panelHeightOriginal;
    private float currentKeyboardHeightRatio;
    public void Start() {
        inputField = transform.GetComponent<InputField>();
        panelRectTrans = panel.GetComponent<RectTransform>();
        panelOffsetMinOriginal = panelRectTrans.offsetMin;
        panelHeightOriginal = panelRectTrans.rect.height;
    }
    public void LateUpdate () {
        if (inputField.isFocused) {
            float newKeyboardHeightRatio = GetKeyboardHeightRatio();
            if (currentKeyboardHeightRatio != newKeyboardHeightRatio) {
                Debug.Log("InputFieldForScreenKeyboardPanelAdjuster: Adjust to keyboard height ratio: " + newKeyboardHeightRatio);
                currentKeyboardHeightRatio = newKeyboardHeightRatio;
                panelRectTrans.offsetMin = new Vector2(panelOffsetMinOriginal.x, panelHeightOriginal * currentKeyboardHeightRatio);
            }
        } else if (currentKeyboardHeightRatio != 0f) {
            if (panelRectTrans.offsetMin != panelOffsetMinOriginal) {
                SmartCoroutine.DelayedExecute(this, () => {
                    Debug.Log("InputFieldForScreenKeyboardPanelAdjuster: Revert to original");
                    panelRectTrans.offsetMin = panelOffsetMinOriginal;
                }, 0.5f);
            }
            currentKeyboardHeightRatio = 0f;
        }
    }
    private float GetKeyboardHeightRatio() {
        if (Application.isEditor) {
            return 0.4f; // fake TouchScreenKeyboard height ratio for debug in editor        
        }
#if UNITY_ANDROID        
        using (AndroidJavaClass UnityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer")) {
            AndroidJavaObject View = UnityClass.GetStatic<AndroidJavaObject>("currentActivity").Get<AndroidJavaObject>("mUnityPlayer").Call<AndroidJavaObject>("getView");
            using (AndroidJavaObject rect = new AndroidJavaObject("android.graphics.Rect")) {
                View.Call("getWindowVisibleDisplayFrame", rect);
                return (float)(Screen.height - rect.Call<int>("height")) / Screen.height;
            }
        }
#else
        return (float)TouchScreenKeyboard.area.height / Screen.height;
#endif
    }
}

我让它相对于画布大小工作，这是代码......您所需要的只是使用画布 RectTransform 引用来调用它。

    public static int GetRelativeKeyboardHeight(RectTransform rectTransform, bool includeInput)
    {
        int keyboardHeight = GetKeyboardHeight(includeInput);
        float screenToRectRatio = Screen.height / rectTransform.rect.height;
        float keyboardHeightRelativeToRect = keyboardHeight / screenToRectRatio;
        return (int) keyboardHeightRelativeToRect;
    }
    private static int GetKeyboardHeight(bool includeInput)
    {
#if UNITY_EDITOR
        return 0;
#elif UNITY_ANDROID
        using (AndroidJavaClass unityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
        {
            AndroidJavaObject unityPlayer = unityClass.GetStatic<AndroidJavaObject>("currentActivity").Get<AndroidJavaObject>("mUnityPlayer");
            AndroidJavaObject view = unityPlayer.Call<AndroidJavaObject>("getView");
            AndroidJavaObject dialog = unityPlayer.Get<AndroidJavaObject>("mSoftInputDialog");
            if (view == null || dialog == null)
                return 0;
            var decorHeight = 0;
            if (includeInput)
            {
                AndroidJavaObject decorView = dialog.Call<AndroidJavaObject>("getWindow").Call<AndroidJavaObject>("getDecorView");
                if (decorView != null)
                    decorHeight = decorView.Call<int>("getHeight");
            }
            using (AndroidJavaObject rect = new AndroidJavaObject("android.graphics.Rect"))
            {
                view.Call("getWindowVisibleDisplayFrame", rect);
                return Screen.height - rect.Call<int>("height") + decorHeight;
            }
        }
#elif UNITY_IOS
        return (int)TouchScreenKeyboard.area.height;
#endif
    }
相关文章：