oncreateoptionsmenu

Explain difference between onCreateOptionsMenu(Menu menu) and onPrepareOptionsMenu(Menu menu) . onCreateOptionsMenu() is called once. onPrepareOptionsMenu() is called every time the menu opens. From the onCreateOptionsMenu() documentation: This is only called once, the first time the options menu is displayed. To update the menu every time it is displayed, see onPrepareOptionsMenu(Menu) . 来源： https://stackoverflow.com/questions/14043631/what-is-the-difference-between-oncreateoptionsmenumenu-menu-and-onprepareoptio

I am having some trouble getting an options menu working in Android. I build apps before, and they all worked fine, but now the menu just doesn't pop up. The code: @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.activity_video, menu); return true; } the whole method is never even called (checked by setting a breakpoint). The activity is super-simple, it just has a VideoView in it, with an OnTouchListener set. I am using Android 4.0.4 on a Samsung Galaxy 10.1, API level 15, minSDK 15. Am I missing something? If the

I have tried to change the background color of options menu in my android app. I am using ActionBarSherlock library. I have tried this code for changing the background color of options menu https://stackoverflow.com/a/8475357/584095 But I ended up with an exception "java.lang.illegalstateexception: a factory has already been set on this layoutinflater" at line LayoutInflater.setFactory(); I don't know what is wrong in this code. Can anyone help me in resolving this issue? There been a change in support library since version 22.1.0. You will get an IllegalStateException if you try to call

I have placed setHasOptionsMenu(true) inside onCreateView , but I still can't call onCreateOptionsMenu inside fragments. @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { setHasOptionsMenu(true); return inflater.inflate(R.layout.facesheet, container, false); } Below is my onCreateOptionsMenu code. @Override public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) { getSupportMenuInflater().inflate(R.menu.layout, menu); return (super.onCreateOptionsMenu(menu)); } The error message I get: The method onCreateOptionsMenu