Explain difference between onCreateOptionsMenu(Menu menu) and onPrepareOptionsMenu(Menu menu).
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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).
Sam
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23Also of note, use `invalidateOptionsMenu()` to force a reload of `onPrepareOptionsMenu(Menu)`. – Joshua Pinter Mar 16 '14 at 23:33