在activity中加入如下代码:
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
if (menu != null) {
if (menu.getClass().getSimpleName().equals("MenuBuilder")) {
try {
Method m = menu.getClass().getDeclaredMethod(
"setOptionalIconsVisible", Boolean.TYPE);
m.setAccessible(true);
m.invoke(menu, true);
} catch (Exception e) {
Log.e(getClass().getSimpleName(), "onMenuOpened...unable to set icons for overflow menu", e);
}
}
}
return super.onPrepareOptionsMenu(menu);
}
转自:http://blog.youkuaiyun.com/seascoop/article/details/48263057