[shared_preferences] Add iOS stub to shared_preferences_windows (flut…

…ter#3058)

shared_preferences supports versions older than 1.18, so this plugin
needs the iOS stub to prevent breaking iOS projects via transitive
dependencies when shared_preferences endorses the Windows implementation.

packages/shared_preferences/shared_preferences_windows/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.0.1+1
+
+* Add iOS stub for compatibility with 1.17 and earlier.
+
 ## 0.0.1
 
 * Initial release to support shared_preferences on Windows.

packages/shared_preferences/shared_preferences_windows/ios/shared_preferences_windows.podspec

@@ -0,0 +1,22 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html
+# Run `pod lib lint shared_preferences_windows.podspec' to validate before publishing.
+#
+Pod::Spec.new do |s|
+  s.name             = 'shared_preferences_windows'
+  s.version          = '0.0.1'
+  s.summary          = 'shared_preferences_windows iOS stub'
+  s.description      = <<-DESC
+  No-op implementation of the windows shared_preferences plugin to avoid build issues on iOS
+                       DESC
+  s.homepage         = 'https://github.com/flutter/plugins'
+  s.license          = { :type => 'BSD', :file => '../LICENSE' }
+  s.author           = { 'Flutter Dev Team' => 'flutter-dev@googlegroups.com' }
+  s.source           = { :http => 'https://github.com/flutter/plugins/tree/master/packages/shared_preferences/shared_preferences_windows' }
+  s.dependency 'Flutter'
+  s.platform = :ios, '8.0'
+
+  # Flutter.framework does not contain a i386 slice. Only x86_64 simulators are supported.
+  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'VALID_ARCHS[sdk=iphonesimulator*]' => 'x86_64' }
+  s.swift_version = '5.0'
+end

packages/shared_preferences/shared_preferences_windows/pubspec.yaml

@@ -1,7 +1,7 @@
 name: shared_preferences_windows
 description: Windows implementation of shared_preferences
 homepage: https://github.com/flutter/plugins/tree/master/packages/shared_preferences/shared_preferences_windows
-version: 0.0.1
+version: 0.0.1+1
 
 flutter:
   plugin: