我一直在开发一个Android应用程序,它有一个在顶部带有多个选项卡的导航栏,这部分功能正常,但现在我想从不同的片段动态地向操作栏添加菜单项(因为某些片段可能有不同的选项可用)。到目前为止,无论我尝试什么,我似乎都无法调用onCreateOptionsMenu方法。下面是我的代码:
//First I have a holder class that is used to navigate between the different Fragment Tabs
public class ActionHolder extends SherlockFragmentActivity implements ActionBar.TabListener {....
//And then I have this method for switching Fragments based on what Tab is selected
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
int selectedTab = tab.getPosition();
if (selectedTab == 0) {
SalesMainScreen salesScreen = new SalesMainScreen();
ft.replace(R.id.content, salesScreen);
}
else if (selectedTab == 1) {
ClientMainScreen clientScreen = new ClientMainScreen();
ft.replace(R.id.content, clientScreen);
}.....
现在这是一个选项卡片段(SalesMainScreen),我希望在动作栏中添加一些菜单项。
@Override
public void onCreate (Bundle savedInstanceState) {
Log.i("message","the oncreate method was called");
setHasOptionsMenu(true);
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup group, Bundle saved) {
return inflater.inflate(R.layout.salesmainscreen, group, false);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
Log.i("message", "the oncreatemenu method called");
inflater.inflate(R.menu.menu_refresh, menu);
super.onCreateOptionsMenu(menu, inflater);
}
我看到OnCreate日志消息被调用,但我根本没有看到调用onCreateOptionsMenu的日志。此外,我知道有时导入会引起问题,但是当我导入Sherlock菜单和菜单膨胀器时,在OnCreateOptionMenu方法上会出现各种错误消息,说它们不兼容。在这种设置中是否可以动态添加菜单项到操作栏,或者我应该只添加项目,然后对不适用于正在显示的片段的项目不执行任何操作?