【Android】【Unity】切换导航栏、状态栏显示与隐藏

显示和隐藏导航栏：

    @Override
    public void onClick(View v)
    {
        switch (v.getId()) {
            case R.id.show:
                //StartUnity();
                mUnityPlayer.resume();
                mUnityPlayer.setSystemUiVisibility(//隐藏导航栏
                        View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                                | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                                | View.SYSTEM_UI_FLAG_FULLSCREEN
                                | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
                break;
            case  R.id.hide:
                //View view = getWindow().getDecorView();//此方法不可用
                mUnityPlayer.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);//显示导航栏
                //mUnityPlayer.pause();
                break;
            default:
                break;
        }
    }

状态栏显示：

@Override protected void onCreate(Bundle savedInstanceState)
{
        ... ...
        getWindow().addFlags(2048);
}

或者：

        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN, WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);

2022/5/30日更新：针对android api 30版本：

    // Notify Unity of the focus change.
    @Override public void onWindowFocusChanged(boolean hasFocus)
    {
        super.onWindowFocusChanged(hasFocus);
        mUnityPlayer.windowFocusChanged(hasFocus);
        ShowStatusBars(this);
    }
    @TargetApi(Build.VERSION_CODES.R)
    public static void ShowStatusBars(Activity activity)
    {
        WindowInsetsController ic = activity.getWindow().getInsetsController();
        ic.getSystemBarsAppearance();
        if (ic != null) {
            ic.show(WindowInsets.Type.statusBars());
            ic.show(WindowInsets.Type.navigationBars());
        }
    }

如果需要将状态栏设置为透明，可以调用下面代码：

getWindow().setStatusBarColor(Color.TRANSPARENT);