Implement Messages feature (#61)

* Implement Messages feature
- Provided NStackMessageWidget for the user to get and show messages from NStack
- The user can use either the default dialog provided by the SDK or override the dialog and implement the UI as per the requirements.

* Update version of the Kotlin Gradle plugin.

* Remove unused import

* Absorb review changes

* Absorb review changes

* Absorb review changes

Author: pritam-bs

example/android/build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.6.10'
+    ext.kotlin_version = '1.9.22'
     repositories {
         google()
         mavenCentral()
@@ -26,6 +26,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }

example/ios/Podfile.lock

@@ -7,12 +7,15 @@ PODS:
   - shared_preferences_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
+  - url_launcher_ios (0.0.1):
+    - Flutter
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
   - nstack (from `.symlinks/plugins/nstack/ios`)
   - package_info (from `.symlinks/plugins/package_info/ios`)
   - shared_preferences_foundation (from `.symlinks/plugins/shared_preferences_foundation/darwin`)
+  - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
 
 EXTERNAL SOURCES:
   Flutter:
@@ -23,13 +26,16 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/package_info/ios"
   shared_preferences_foundation:
     :path: ".symlinks/plugins/shared_preferences_foundation/darwin"
+  url_launcher_ios:
+    :path: ".symlinks/plugins/url_launcher_ios/ios"
 
 SPEC CHECKSUMS:
   Flutter: f04841e97a9d0b0a8025694d0796dd46242b2854
   nstack: a7ebf31d8c387ec76d4bfe5eb494d3ac81756d92
   package_info: 873975fc26034f0b863a300ad47e7f1ac6c7ec62
   shared_preferences_foundation: 5b919d13b803cadd15ed2dc053125c68730e5126
+  url_launcher_ios: bf5ce03e0e2088bad9cc378ea97fa0ed5b49673b
 
 PODFILE CHECKSUM: ef19549a9bc3046e7bb7d2fab4d021637c0c58a3
 
-COCOAPODS: 1.12.1
+COCOAPODS: 1.14.3

example/lib/main.dart

@@ -32,20 +32,40 @@ class MainScreen extends StatelessWidget {
     final localizationAsset = localization.assets;
     final activeLanguage = localization.activeLanguage;
 
-    return Scaffold(
-      appBar: AppBar(
-        title: Text(localizationAsset.test.testDollarSign),
-      ),
-      body: Center(
-        child: MaterialButton(
-          onPressed: () {
-            final locale = activeLanguage.locale == 'en-EN'
-                ? const Locale('de-DE')
-                : const Locale('en-EN');
-            localization.changeLocalization(locale);
-          },
-          child: Text(
-            'Selected locale: ${activeLanguage.name}',
+    // Message option for receiving the Message response, will not show the default dialog.
+    // void onMessage(Message message) {
+    //   if (kDebugMode) {
+    //     print(message.message);
+    //   }
+    // }
+
+    // final customNstackHandlerConfiguration =
+    //     CustomNstackHandlerConfiguration(onMessage: onMessage);
+
+    // Message option for showing default dialog.
+    final defaultHandlerConfiguration = DefaultNstackHandlerConfiguration(
+      okButtonTitle: localizationAsset.test.okButtonTitle,
+      openUrlButtonTitle: localizationAsset.test.openUrlButtonTitle,
+      dialogTitle: localizationAsset.test.dialogTitle,
+    );
+
+    return NStackMessageWidget(
+      handlerConfiguration: defaultHandlerConfiguration,
+      child: Scaffold(
+        appBar: AppBar(
+          title: Text(localizationAsset.test.testDollarSign),
+        ),
+        body: Center(
+          child: MaterialButton(
+            onPressed: () {
+              final locale = activeLanguage.locale == 'en-EN'
+                  ? const Locale('de-AT')
+                  : const Locale('en-EN');
+              localization.changeLocalization(locale);
+            },
+            child: Text(
+              'Selected locale: ${activeLanguage.name}',
+            ),
           ),
         ),
       ),