I had to fix this by putting brackets around the ternary operator - not sure but it looks like the ternary operator has higher precedence than the ?? operator causing this error

widget.subtitleOptions.style.color ?? Theme.of(context).brightness == Brightness.light ? lightAccent : darkAccent

Should read

widget.subtitleOptions.style.color ?? (Theme.of(context).brightness == Brightness.light ? lightAccent : darkAccent)

Notice the brackets added to the ternary operator to fix the issue

Background color fix in version 0.13.

My question : configuration : IconConfiguration( Icon : icons.done, (success) (Add) color: Colors.white (error colors not type bool) ) How to change color icon? Thanks

Error: Cannot run with sound null safety, because the following dependencies don't support null safety:

• package:status_alert
• package:flare_flutter
• package:flare_dart

For solutions, see https://dart.dev/go/unsound-null-safety

FAILURE: Build failed with an exception.

• Where: Script 'C:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1005

• What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'.

Process 'command 'C:\flutter\bin\flutter.bat'' finished with non-zero exit value 1

• Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1m 47s Exception: Gradle task assembleDebug failed with exit code 1

How do we make the popup dismiss itself on touch registered anywhere on the screen and at the same time make the rest of the screen inactive while the popup is alive?

I want to display a alert notification using StatusAlert.show(.........) in Flutter.The problem is I can run it foreground(it can be shown only over the current build context) but I want to run the StatusAlert's notification in background.The Alert is actually called when a countdown timer reaches zero.Can anyone suggest me how.

import 'package:android_alarm_manager/android_alarm_manager.dart'; import 'package:flutter/material.dart'; import 'package:flutter_datetime_picker/flutter_datetime_picker.dart'; import 'package:flutter_local_notifications/flutter_local_notifications.dart'; import 'package:intl/intl.dart'; import 'package:flushbar/flushbar.dart'; import 'package:status_alert/status_alert.dart'; import 'CommonPicker.dart'; import 'fileUtils.dart'; import 'package:firebase_messaging/firebase_messaging.dart';

Future myBackgroundMessageHandler(Map<String, dynamic> message) { if (message.containsKey('data')) { // Handle data message final dynamic data = message['data']; }

if (message.containsKey('notification')) { // Handle notification message final dynamic notification = message['notification']; }

// Or do other work. }

void status_bar() {

StatusAlert.show( context, blurPower: 0.1, duration: Duration(seconds: 5), title: 'Hey', subtitle: 'Message:XXXXXXXXXXXXXXXXXXXXXXXXXX ', configuration: IconConfiguration(icon: Icons.warning), ); } // //FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin(); // //initializeNotification()async { // var initializeAndroid = AndroidInitializationSettings( // 'ic_launcher'); // var initializeIOS = IOSInitializationSettings(); // var initSettings = InitializationSettings(initializeAndroid, initializeIOS); // await flutterLocalNotificationsPlugin.initialize(initSettings); //} // //Future singleNotification(DateTime dateTime,String message,String subtext,int hashcode,{String sound}) async { // var androidChannel = AndroidNotificationDetails( // 'channel-id', 'channel-name', 'channel-description', // importance: Importance.Max, priority: Priority.Max,enableVibration: true,visibility:NotificationVisibility.Public ); // var iosChannel = IOSNotificationDetails(); // var platformChannelSpecifics = NotificationDetails(androidChannel, iosChannel); // await flutterLocalNotificationsPlugin.show(0, message, subtext, platformChannelSpecifics,); //}

Future callback() async { print("I am in the isolate");

// DateTime now=DateTime.now().toLocal();

status_bar();

// await singleNotification(now, "notification" , "This is the message", 98123871); print("last line of Isolate"); }

class AlertTime2 extends StatefulWidget { static const routeName = '/alertTime2';

@override _AlertTime2State createState() => _AlertTime2State(); }

class _AlertTime2State extends State { String mm = "00"; String ss = "00"; var mmValue; var ssValue; var totalTimeInSec; Flushbar flush; String _selectedTime;

final FirebaseMessaging _messaging = FirebaseMessaging();

@override void initState() { super.initState();

//initializeNotification();

_messaging.getToken().then((token) {
  print("token is :" + token);
});

FileUtils().readFromFile().then((String value) {
  setState(() {
    _selectedTime = value;
  });
});

}

// ignore: non_constant_identifier_names void display_flush_bar() { Future.delayed(Duration(seconds: totalTimeInSec), () { setState(() { flush = Flushbar( title: "Hey", message: "XXXXXXXXXXXXXXXXXXXXxx", duration: Duration(seconds: 5), isDismissible: true, icon: Icon( Icons.warning, color: Colors.red, ), dismissDirection: FlushbarDismissDirection.HORIZONTAL, mainButton: FlatButton( onPressed: () { flush.dismiss(true); }, child: Text( "CANCEL", style: TextStyle(color: Colors.amber), ), ), )..show(context); }); }); }

void alarm_managing_function(int t) async { await AndroidAlarmManager.initialize(); await AndroidAlarmManager.periodic(Duration(seconds: t), 0, callback); }

@override Widget build(BuildContext context) { return Scaffold( body: Column( children: [ Padding( padding: const EdgeInsets.fromLTRB(30, 70, 0, 0), child: Text( "Timer for Notification", style: TextStyle( fontSize: 50, ), ), ), Padding( padding: const EdgeInsets.fromLTRB(0, 150, 0, 0), child: Text( "MM-SS", style: TextStyle( fontSize: 30, fontWeight: FontWeight.bold, ), ), ), Padding( padding: const EdgeInsets.fromLTRB(0, 0, 0, 0), child: Text( "${_selectedTime ?? 'Selected Time'}", style: TextStyle(fontWeight: FontWeight.bold, fontSize: 38), ), ), RaisedButton( onPressed: () { DatePicker.showPicker(context, showTitleActions: true, pickerModel: CustomPicker(currentTime: DateTime.tryParse(_selectedTime)), onConfirm: (time) { setState(() { print(time); _selectedTime = DateFormat("mm-ss").format(time); FileUtils().saveToFile(_selectedTime);

            mm = _selectedTime.substring(0, 2);
            ss = _selectedTime.substring(3, 5);
            print(mm);
            print(ss);
            mmValue = int.parse(mm);
            ssValue = int.parse(ss);
            totalTimeInSec = mmValue * 60 + ssValue;
            print(totalTimeInSec);

            display_flush_bar();
            alarm_managing_function(totalTimeInSec);
          });
        }, locale: LocaleType.en);
      },
      child: Text("Show Time picker"),
    ),
  ],
));

} }