consider scroll max iteration and ScrollDelta from capabilities (#26)

* Modified the element_helper file to set defaultScrollMaxIteration dynamically | Rahul|Purnima|Dharsana

* Modified element helper util to set ScrollDelta dyanamically from capabilities

* Removed the unused Commmented code

* Implemented the review comments

* Upgraded the serverVersion to 0.0.25

* Updated the import path as per review comments|Rahul

Author: rahul-kumar-sdet

server/lib/src/runner.dart

@@ -10,7 +10,7 @@ import 'package:package_info_plus/package_info_plus.dart';
 const MAX_TEST_DURATION_SECS = 24 * 60 * 60;
 // Need a better way to fetch this for automated release, this needs to be updated along with version bump
 // Can stay for now as it is not a breaking change
-const serverVersion = '0.0.24';
+const serverVersion = '0.0.25';
 
 void initializeTest({Widget? app, Function? callback}) async {
   IntegrationTestWidgetsFlutterBinding binding =

server/lib/src/utils/element_helper.dart

@@ -21,12 +21,6 @@ enum NATIVE_ELEMENT_ATTRIBUTES { enabled, displayed, clickable }
 
 typedef WaitPredicate = Future<bool> Function();
 
-/// Default amount to drag by when scrolling.
-const defaultScrollDelta = 64.0;
-
-/// Default maximum number of drags during scrolling.
-const defaultScrollMaxIteration = 15;
-
 class ElementHelper {
   static Future<Finder> findElement(Finder by, {String? contextId}) async {
     List<Finder> elementList =
@@ -492,8 +486,10 @@ class ElementHelper {
     Duration? settleBetweenScrollsTimeout,
     Duration? dragDuration,
   }) async {
-    delta ??= defaultScrollDelta;
-    maxScrolls ??= defaultScrollMaxIteration;
+    delta ??= FlutterDriver.instance.settings
+        .getSetting(FlutterSettings.flutterScrollDelta);
+    maxScrolls ??= FlutterDriver.instance.settings
+        .getSetting(FlutterSettings.flutterScrollMaxIteration);
     WidgetTester tester = _getTester();
     Finder scrollViewElement = scrollView != null
         ? await locateElement(scrollView)

server/lib/src/utils/flutter_settings.dart

@@ -1,13 +1,15 @@
 class FlutterSettings {
   Map<String, dynamic> _settings = {};
   static const String flutterElementWaitTimeout = "flutterElementWaitTimeout";
+  static const String flutterScrollMaxIteration = "flutterScrollMaxIteration";
+  static const String flutterScrollDelta = "flutterScrollDelta";
 
   FlutterSettings() {
     _setDefaultSetting();
   }
 
   _setDefaultSetting() {
-    _settings = {flutterElementWaitTimeout: 5000};
+    _settings = {flutterElementWaitTimeout: 5000,flutterScrollMaxIteration: 15,flutterScrollDelta:64};
   }
 
   updateSetting(Map<String, dynamic> capabilities) {

server/pubspec.yaml

@@ -1,6 +1,6 @@
 name: appium_flutter_server
 description: "Appium Flutter server using Integration Test package for testing Flutter apps with Appium"
-version: 0.0.24
+version: 0.0.25
 homepage: "https://github.com/AppiumTestDistribution/appium-flutter-server"
 
 environment: