confirm static method
Implementation
static Future<bool> confirm(String txt, { String imgFile = "" } ) async {
BuildContext? ctx = globalNavigatorKey.currentContext;
if (ctx == null) return false;
dialog = true;
return showDialog(
context: ctx,
builder: (BuildContext context) {
return Center(
child: ConfirmDialog(txt, imageFilename: imgFile));
}).then((ok) {
dialog = false;
return ok ?? false;
});
}