public override bool OnOptionsItemSelected(IMenuItem item)
{
// Handle presses on the action bar items
DialogFragment fragment;
switch (item.ItemId)
{
case Resource.Id.menu_flash:
Flash = !Flash;
if (Flash)
{
item.SetTitle(Resource.String.flash_on);
}
else
{
item.SetTitle(Resource.String.flash_off);
}
ScannerView.Flash = Flash;
return(true);
case Resource.Id.menu_auto_focus:
AutoFocus = !AutoFocus;
if (AutoFocus)
{
item.SetTitle(Resource.String.auto_focus_on);
}
else
{
item.SetTitle(Resource.String.auto_focus_off);
}
ScannerView.SetAutoFocus(AutoFocus);
return(true);
case Resource.Id.menu_formats:
fragment = ZXingFormatSelectorDialogFragment.NewInstance(this, SelectedIndices);
fragment.Show(SupportFragmentManager, "format_selector");
return(true);
case Resource.Id.menu_camera_selector:
ScannerView.StopCamera();
fragment = CameraSelectorDialogFragment.NewInstance(this, CameraId);
fragment.Show(SupportFragmentManager, "camera_selector");
return(true);
case Android.Resource.Id.Home:
OnBackPressed();
return(true);
default:
return(base.OnOptionsItemSelected(item));
}
}
public static ZXingFormatSelectorDialogFragment NewInstance(IFormatSelectorDialogListener listener,
IList <Integer> selectedIndices)
{
ZXingFormatSelectorDialogFragment fragment = new ZXingFormatSelectorDialogFragment();
if (selectedIndices == null)
{
selectedIndices = new List <Integer>();
}
fragment.SelectedIndices = new List <Integer>(selectedIndices);
fragment.Listener = listener;
return(fragment);
}