[url_launcher] Add Swift Package Manager support (flutter#6677)

Adds SPM support for both iOS and macOS.

Also opportunistically updates the unit tests for macOS to match the changes made in flutter/packages#4959 since I noticed that they were failing when running locally. This will prevent issues when we update CI in the future.

Fixes flutter#146916

Author: stuartmorgan-g

packages/url_launcher/url_launcher_ios/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 6.3.0
+
+* Adds Swift Package Manager compatibility.
+
 ## 6.2.5
 
 * Adds explicit imports for UIKit.

packages/url_launcher/url_launcher_ios/ios/url_launcher_ios.podspec

@@ -14,13 +14,13 @@ A Flutter plugin for making the underlying platform (Android or iOS) launch a UR
   s.source           = { :http => 'https://github.com/flutter/packages/tree/main/packages/url_launcher/url_launcher_ios' }
   s.documentation_url = 'https://pub.dev/packages/url_launcher'
   s.swift_version = '5.0'
-  s.source_files = 'Classes/**/*.swift'
+  s.source_files = 'url_launcher_ios/Sources/**/*.swift'
   s.xcconfig = {
       'LIBRARY_SEARCH_PATHS' => '$(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)/ $(SDKROOT)/usr/lib/swift',
       'LD_RUNPATH_SEARCH_PATHS' => '/usr/lib/swift',
   }
   s.dependency 'Flutter'
   s.platform = :ios, '12.0'
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
-  s.resource_bundles = {'url_launcher_ios_privacy' => ['Resources/PrivacyInfo.xcprivacy']}
+  s.resource_bundles = {'url_launcher_ios_privacy' => ['url_launcher_ios/Sources/url_launcher_ios/Resources/PrivacyInfo.xcprivacy']}
 end

packages/url_launcher/url_launcher_ios/ios/url_launcher_ios/Package.swift

@@ -0,0 +1,28 @@
+// swift-tools-version: 5.9
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import PackageDescription
+
+let package = Package(
+  name: "url_launcher_ios",
+  platforms: [
+    .iOS("12.0")
+  ],
+  products: [
+    .library(name: "url-launcher-ios", targets: ["url_launcher_ios"])
+  ],
+  dependencies: [],
+  targets: [
+    .target(
+      name: "url_launcher_ios",
+      dependencies: [],
+      resources: [
+        .process("Resources")
+      ]
+    )
+  ]
+)

packages/url_launcher/url_launcher_ios/ios/Classes/Launcher.swift renamed to packages/url_launcher/url_launcher_ios/ios/url_launcher_ios/Sources/url_launcher_ios/Launcher.swift

@@ -6,7 +6,7 @@ import 'package:pigeon/pigeon.dart';
 
 @ConfigurePigeon(PigeonOptions(
   dartOut: 'lib/src/messages.g.dart',
-  swiftOut: 'ios/Classes/messages.g.swift',
+  swiftOut: 'ios/url_launcher_ios/Sources/url_launcher_ios/messages.g.swift',
   copyrightHeader: 'pigeons/copyright.txt',
 ))
 

packages/url_launcher/url_launcher_ios/ios/Resources/PrivacyInfo.xcprivacy renamed to packages/url_launcher/url_launcher_ios/ios/url_launcher_ios/Sources/url_launcher_ios/Resources/PrivacyInfo.xcprivacy

@@ -2,7 +2,7 @@ name: url_launcher_ios
 description: iOS implementation of the url_launcher plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/url_launcher/url_launcher_ios
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+url_launcher%22
-version: 6.2.5
+version: 6.3.0
 
 environment:
   sdk: ^3.2.3