[Android]Menu events

onCreateOptionsMenu

• Trigged the first time an Activity’s menu is displaed
  • Can Define a menu for an Activity
  • Menu.add() method
  • Menu.addSubMenu() method
• Can use Menu resource in Xml file
  • MenuInflator.inflate() method

onOptionsItemSelected

• MenuItem.getItemId() method and R.id.xxx
• When the menu item selected

onPrepareOptionsMenu

• Can modify a Menu based on an application’s current state

onCreateContextMenu

• Can define a Context Menu
• registerForContextMenu(view)  : Can register Activity-specific Context Menu for an Activity
• Can use Menu resource in Xml file
  • MenuInflator.inflate() method

onContextItemSelected

• When the context menu item selected

 

sample