某些手机​​上看不到Android溢出菜单按钮-AndroidOverflowMenuButtonisnotvisibleonsomephones

I used to have same problem in few of my projects. I followed the steps given below which worked for me 1. extends your activity to ActionBarActivity

我曾经在我的一些项目中遇到同样的问题。我按照下面给出的对我有用的步骤1.将您的活动扩展到ActionBarActivity

2. call the following code in onCreate method

   在onCreate方法中调用以下代码

   private void makeActionOverflowMenuShown() 
   {
   //devices with hardware menu button (e.g. Samsung Note) don't show action overflow menu
   try {
       ViewConfiguration cOnfig= ViewConfiguration.get(this);
       Field menuKeyField = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey");
       if (menuKeyField != null) {
           menuKeyField.setAccessible(true);
           menuKeyField.setBoolean(config, false);
       }
   } catch (Exception e) {
   }
      }
   

set android:showAsAction="ifRoom" in menu.xml, the button would show.

在menu.xml中设置android:showAsAction =“ifRoom”,按钮会显示。

Try like this. This works for me..

试试这样吧。这对我有用..

As i commented in vinay's answer , the reason was that i was debugging an old program written by some one else. It seems all were Activities , but i had changed the target and compile-with to 22. Once i changed the Activity to ActionBarActivity the overflow appeared on the devices with soft menu button. While those with hard options menu button did not display it.

正如我在vinay的回答中评论的那样,原因是我正在调试由其他人编写的旧程序。似乎所有都是活动,但我已经更改了目标并编译为22.一旦我将Activity更改为ActionBarActivity,软件菜单按钮上的设备就会出现溢出。而那些带有硬选项菜单按钮的人没有显示它。

Menu - Xml



    
    

in your menu.xml you just use showAsAction as never which represent Never place this item in the Action Bar. please refer the link for more info

在您的menu.xml中,您只需使用showAsAction,因为它永远不会代表从不将此项放在操作栏中。请参阅链接以获取更多信息