Add a RegExp for iOS domain when reading domains from xcodeProject (flutter#154201)

Append the string `?mode=<alternate mode>` to the associated domain to
enable alternate mode in some use cases is recommended in apple
developer guide
(https://developer.apple.com/documentation/xcode/configuring-an-associated-domain#Enable-alternate-mode-for-unreachable-servers)

So when reading these domains from xcode settings, we should consider
this case and trim it.













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Author: hannah-hyj

packages/flutter_tools/lib/src/xcode_project.dart

@@ -262,7 +262,8 @@ class IosProject extends XcodeBasedProject {
   static final RegExp _productBundleIdPattern = RegExp('^\\s*$kProductBundleIdKey\\s*=\\s*(["\']?)(.*?)\\1;\\s*\$');
   static const String _kProductBundleIdVariable = '\$($kProductBundleIdKey)';
 
-  static final RegExp _associatedDomainPattern = RegExp(r'^applinks:(.*)');
+  // The string starts with `applinks:` and ignores the query param which starts with `?`.
+  static final RegExp _associatedDomainPattern = RegExp(r'^applinks:([^?]+)');
 
   Directory get ephemeralModuleDirectory => parent.directory.childDirectory('.ios');
   Directory get _editableDirectory => parent.directory.childDirectory('ios');

packages/flutter_tools/test/general.shard/project_test.dart

@@ -920,6 +920,7 @@ plugins {
             <String>[
               'applinks:example.com',
               'applinks:example2.com',
+              'applinks:example3.com?mode=developer',
             ],
           );
           final String outputFilePath = await project.ios.outputsUniversalLinkSettings(
@@ -935,6 +936,7 @@ plugins {
               <String>[
                 'example.com',
                 'example2.com',
+                'example3.com',
               ],
             ),
           );