Options Menu does not appear in Action Bar on some devices

问题

I have an options menu in the action bar, and it does not appear on certain devices which have hardware menu button. I must make it appear in the action bar despite having a hardware button... How can I do it?

回答1:

Put this in your onCreate method:

try {
    ViewConfiguration config = ViewConfiguration.get(this);
    Field menuKeyField = ViewConfiguration.class
            .getDeclaredField("sHasPermanentMenuKey");
    if (menuKeyField != null) {
            menuKeyField.setAccessible(true);
            menuKeyField.setBoolean(config, false);
    }
} catch (Exception ex) {
}

来源：https://stackoverflow.com/questions/26010876/options-menu-does-not-appear-in-action-bar-on-some-devices