Android 弹出Dialog时隐藏状态栏和底部导航栏

上代码

dialog.getwindow().getdecorview().setsystemuivisibility(view.system_ui_flag_hide_navigation);
dialog.getwindow().getdecorview().setonsystemuivisibilitychangelistener(new view.onsystemuivisibilitychangelistener() {
          @override
          public void onsystemuivisibilitychange(int visibility) {
                  int uioptions = view.system_ui_flag_layout_stable |
                  //布局位于状态栏下方
                  view.system_ui_flag_layout_hide_navigation |
                  //全屏
                  view.system_ui_flag_fullscreen |
                  //隐藏导航栏
                  view.system_ui_flag_hide_navigation |
                  view.system_ui_flag_layout_fullscreen;
                  uioptions |= 0x00001000;
                  dialog.getwindow().getdecorview().setsystemuivisibility(uioptions);
          }
});