showOverlayWhenUnavailableNetwork method
网络不可用 时 弹出 Overlay 禁止操作
Implementation
Future<bool> showOverlayWhenUnavailableNetwork(
UnavailableNetworkAlertBuilder alertUnavailableNetwork,
{bool willPop = true}) async {
if (!networkAvailability) {
if (isAndroid && willPop) GlobalOptions().setScaffoldWillPop(false);
_connectivityOverlay ??=
alertUnavailableNetwork(networkAvailability, _currentStatus);
} else {
if (isAndroid && willPop) GlobalOptions().setScaffoldWillPop(true);
_connectivityOverlay?.removeEntry();
_connectivityOverlay = null;
}
return true;
}