showModal method
void
showModal()
Function to show the choice modal
Implementation
void showModal() async {
// call on modal will open callback
// and prevent open modal if return value is not `true`
final bool willOpen = await onModalWillOpen() ?? true;
if (willOpen != true) return;
// initialize the selection choice(s)
resolveSelection();
// initialize filter
initializeFilter();
// initial load the choice items
choices!.initialize();
// show modal by type and return confirmed value
final bool confirmed = await _showModalByType() ?? false;
// call on modal close callback
onModalClose(confirmed);
// dont return value if modal need confirmation and not confirmed
if (modalConfig.useConfirm == true && confirmed != true) return;
// return value
if (selection!.choice != null) {
// return state to onChange callback
onChange();
}
}