unity3d 手机开发 全屏覆盖手机工具栏图标

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public class HideAndroidButtons : MonoBehaviour  {      #if UNITY_ANDROID && !UNITY_EDITOR      const int SYSTEM_UI_FLAG_IMMERSIVE_STICKY = 4096;      const int SYSTEM_UI_FLAG_HIDE_NAVIGATION = 2;      const int SYSTEM_UI_FLAG_FULLSCREEN = 4;              AndroidJavaObject decorView;              void Start()      {          AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");          AndroidJavaObject activity = jc.GetStatic<AndroidJavaObject>("currentActivity");          AndroidJavaObject window = activity.Call<AndroidJavaObject>("getWindow");          decorView = window.Call<AndroidJavaObject>("getDecorView");                      TurnImmersiveModeOn();      }      void OnApplicationFocus(bool focusStatus) {          if(focusStatus){              TurnImmersiveModeOn();          }      }      void TurnImmersiveModeOn()      {          decorView.Call("setSystemUiVisibility", SYSTEM_UI_FLAG_FULLSCREEN | SYSTEM_UI_FLAG_HIDE_NAVIGATION | SYSTEM_UI_FLAG_IMMERSIVE_STICKY);      }      void OnDestroy()      {          decorView.Dispose();      }      #endif  }

　　借鉴：http://blog.csdn.net/liang_704959721/article/details/51377450