這是我在我的菜單處理活動做...
//Android Activity Lifecycle Method
// This is only called once, the first time the options menu is displayed.
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.mainmenu, menu);
return true;
}
//Android Activity Lifecycle Method
// Called when a panel's menu is opened by the user.
@Override
public boolean onMenuOpened(int featureId, Menu menu)
{
MenuItem mnuLogOut = menu.findItem(R.id.main_menu_log_out_id);
MenuItem mnuLogIn = menu.findItem(R.id.main_menu_log_in_id);
MenuItem mnuOptions = menu.findItem(R.id.main_menu_options_id);
MenuItem mnuProfile = menu.findItem(R.id.main_menu_profile_id);
//set the menu options depending on login status
if (mBoolLoggedIn == true)
{
//show the log out option
mnuLogOut.setVisible(true);
mnuLogIn.setVisible(false);
//show the options selection
mnuOptions.setVisible(true);
//show the edit profile selection
mnuProfile.setVisible(true);
}
else
{
//show the log in option
mnuLogOut.setVisible(false);
mnuLogIn.setVisible(true);
//hide the options selection
mnuOptions.setVisible(false);
//hide the edit profile selection
mnuProfile.setVisible(false);
}
return true;
}
//Android Activity Lifecycle Method
// called whenever an item in your options menu is selected
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
// Handle item selection
switch (item.getItemId())
{
case R.id.main_menu_log_in_id:
{
ShowLoginUI();
return true;
}
case R.id.main_menu_log_out_id:
{
ShowGoodbyeUI();
return true;
}
case R.id.main_menu_options_id:
{
ShowOptionsUI();
return true;
}
case R.id.main_menu_profile_id:
{
ShowProfileUI();
return true;
}
default:
return super.onOptionsItemSelected(item);
}
}
我喜歡這種方法,因爲它使代碼不錯,模塊化
天才,就是這樣。非常感謝。 – 2011-02-16 20:29:49