【Unity】Android端末においてソフトウェアキーボードの領域を取得する

概要

public int GetKeyboardSize()
{
#if !UNITY_EDITOR && UNITY_ANDROID
    using ( var unityPlayer = new AndroidJavaClass( "com.unity3d.player.UnityPlayer" ) )
    {
        var view = unityPlayer
            .GetStatic<AndroidJavaObject>( "currentActivity" )
            .Get<AndroidJavaObject>( "mUnityPlayer" )
            .Call<AndroidJavaObject>( "getView" )
        ;

        using ( var rect = new AndroidJavaObject( "android.graphics.Rect" ) )
        {
            view.Call( "getWindowVisibleDisplayFrame", rect );

            return Screen.height - rect.Call<int>( "height" );
        }
    }
#else
    return 0;
#endif
}

参考サイト様