Android 隐藏底部导航栏/隐藏底部三大金刚

 /**
  * 隐藏 系统导航栏
  *
  * @param context
  * @param state   true 隐藏  false 还原显示
  */

 public static void hideNavigationBar (Context context,boolean state){

     Intent sbarIntent = new Intent();
     sbarIntent.setAction("com.alf.switch_status_bar");
     sbarIntent.putExtra("hide", state);
     context.sendBroadcast(sbarIntent);

 }