Fix issues with the call screen were hanging up while ringing and declining a call were impossible. (#280)

* fix permission issues and hangup/decline while ringing

* Bump versions to meet current minimal requirements

Co-authored-by: Steffen Arntz <steffen.arntz@ucware.com>

Author: DooMMasteR

example/lib/main.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_webrtc/flutter_webrtc.dart';
 import 'package:sip_ua/sip_ua.dart';
 
+
 import 'src/about.dart';
 import 'src/callscreen.dart';
 import 'src/dialpad.dart';

example/lib/src/callscreen.dart

@@ -154,6 +154,7 @@ class _MyCallScreenWidget extends State<CallScreenWidget>
   void registrationStateChanged(RegistrationState state) {}
 
   void _cleanUp() {
+    if(_localStream == null) return;
     _localStream?.getTracks().forEach((track) {
       track.stop();
     });
@@ -205,7 +206,7 @@ class _MyCallScreenWidget extends State<CallScreenWidget>
   }
 
   void _handleHangup() {
-    call!.hangup();
+    call!.hangup({'status_code': 603});
     _timer.cancel();
   }
 

example/lib/src/dialpad.dart

@@ -1,8 +1,13 @@
+import 'dart:io';
+
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_webrtc/flutter_webrtc.dart';
+import 'package:permission_handler/permission_handler.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:sip_ua/sip_ua.dart';
+import 'package:flutter/foundation.dart';
+
 
 import 'widgets/action_button.dart';
 
@@ -36,7 +41,7 @@ class _MyDialPadWidget extends State<DialPadWidget>
     _textController = TextEditingController(text: _dest);
     _textController!.text = _dest!;
 
-    this.setState(() {});
+    setState(() {});
   }
 
   void _bindEventListeners() {
@@ -46,8 +51,12 @@ class _MyDialPadWidget extends State<DialPadWidget>
   Future<Widget?> _handleCall(BuildContext context,
       [bool voiceonly = false]) async {
     var dest = _textController?.text;
+    if(defaultTargetPlatform == TargetPlatform.android || defaultTargetPlatform == TargetPlatform.iOS) {
+      await Permission.microphone.request();
+      await Permission.camera.request();
+    }
     if (dest == null || dest.isEmpty) {
-      showDialog<Null>(
+      showDialog<void>(
         context: context,
         barrierDismissible: false,
         builder: (BuildContext context) {
@@ -92,15 +101,15 @@ class _MyDialPadWidget extends State<DialPadWidget>
   void _handleBackSpace([bool deleteAll = false]) {
     var text = _textController!.text;
     if (text.isNotEmpty) {
-      this.setState(() {
+      setState(() {
         text = deleteAll ? '' : text.substring(0, text.length - 1);
         _textController!.text = text;
       });
     }
   }
 
   void _handleNum(String number) {
-    this.setState(() {
+    setState(() {
       _textController!.text += number;
     });
   }
@@ -136,8 +145,8 @@ class _MyDialPadWidget extends State<DialPadWidget>
                 mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                 children: row
                     .map((label) => ActionButton(
-                          title: '${label.keys.first}',
-                          subTitle: '${label.values.first}',
+                          title: label.keys.first,
+                          subTitle: label.values.first,
                           onPressed: () => _handleNum(label.keys.first),
                           number: true,
                         ))
@@ -275,7 +284,7 @@ class _MyDialPadWidget extends State<DialPadWidget>
                     padding: const EdgeInsets.all(6.0),
                     child: Center(
                         child: Text(
-                      'Received Message: ${receivedMsg}',
+                      'Received Message: $receivedMsg',
                       style: TextStyle(fontSize: 14, color: Colors.black54),
                     )),
                   ),
@@ -290,7 +299,7 @@ class _MyDialPadWidget extends State<DialPadWidget>
 
   @override
   void registrationStateChanged(RegistrationState state) {
-    this.setState(() {});
+    setState(() {});
   }
 
   @override
@@ -314,6 +323,5 @@ class _MyDialPadWidget extends State<DialPadWidget>
 
   @override
   void onNewNotify(Notify ntf) {
-    // TODO: implement onNewNotify
   }
 }

example/pubspec.yaml

@@ -28,6 +28,7 @@ dependencies:
   sip_ua:
     path: ../
   shared_preferences: ^2.0.5
+  permission_handler: ^9.2.0
 
 dev_dependencies:
   flutter_test:

example/scripts/project_tools.sh

@@ -37,7 +37,7 @@ function add_permission_label() {
     echo ""
     echo "Add permission labels to AndroidManifest.xml."
     echo ""
-    python add-line.py -i ../android/app/build.gradle -s 'minSdkVersion 16' -t 'minSdkVersion 21' -r
+    python add-line.py -i ../android/app/build.gradle -s 'minSdkVersion 21' -t 'minSdkVersion 32' -r
     python add-line.py -i ../android/app/src/main/AndroidManifest.xml -s "<application" -t '    <uses-permission android:name="android.permission.CAMERA" />'
     python add-line.py -i ../android/app/src/main/AndroidManifest.xml -s "<application" -t '    <uses-permission android:name="android.permission.RECORD_AUDIO" />'
     python add-line.py -i ../android/app/src/main/AndroidManifest.xml -s "<application" -t '    <uses-permission android:name="android.permission.WAKE_LOCK" />'