Implement macos using shared darwin source (#889)

* Implement MacOS support using sharedDarwinSource

* Update protobuf docs

* Fix compilation and warnings

---------

Co-authored-by: Rohit Sangwan <[email protected]>

Author: gabrielgarciagava

README.md

@@ -67,16 +67,18 @@ In case you are using ProGuard add the following snippet to your `proguard-rules
 
 This will prevent issues like [#131](https://github.com/PhilipsHue/flutter_reactive_ble/issues/131).
 
-### iOS
+### iOS / MacOS
 
-For iOS it is required you add the following entries to the `Info.plist` file of your app. It is not allowed to access Core BLuetooth without this. See [our example app](https://github.com/PhilipsHue/flutter_reactive_ble/blob/master/example/ios/Runner/Info.plist) on how to implement this. For more indepth details: [Blog post on iOS bluetooth permissions](https://medium.com/flawless-app-stories/handling-ios-13-bluetooth-permissions-26c6a8cbb816)
+For iOS/MacOS it is required you add the following entries to the `Info.plist` file of your app. It is not allowed to access Core BLuetooth without this. See [our example app](https://github.com/PhilipsHue/flutter_reactive_ble/blob/master/example/ios/Runner/Info.plist) on how to implement this. For more indepth details: [Blog post on iOS bluetooth permissions](https://medium.com/flawless-app-stories/handling-ios-13-bluetooth-permissions-26c6a8cbb816)
 
 iOS13 and higher
 * NSBluetoothAlwaysUsageDescription
 
 iOS12 and lower
 * NSBluetoothPeripheralUsageDescription
 
+For MacOS, make sure to enable Bluetooth from Capabilities
+
 ## Usage
 ### Initialization
 

example/lib/src/ui/device_detail/characteristic_interaction_dialog.dart

@@ -35,7 +35,7 @@ class _CharacteristicInteractionDialogState extends State<_CharacteristicInterac
   late String writeOutput;
   late String subscribeOutput;
   late TextEditingController textEditingController;
-  late StreamSubscription<List<int>>? subscribeStream;
+  StreamSubscription<List<int>>? subscribeStream;
 
   @override
   void initState() {

example/lib/src/ui/device_detail/device_interaction_tab.dart

@@ -155,9 +155,7 @@ class _DeviceInteractionTabState extends State<_DeviceInteractionTab> {
                         child: const Text("Discover Services"),
                       ),
                       ElevatedButton(
-                        onPressed: widget.viewModel.deviceConnected
-                            ? readRssi
-                            : null,
+                        onPressed: widget.viewModel.deviceConnected ? readRssi : null,
                         child: const Text("Get RSSI"),
                       ),
                     ],
@@ -285,7 +283,7 @@ class _ServiceDiscoveryListState extends State<_ServiceDiscoveryList> {
             child: ExpansionPanelList(
               expansionCallback: (int index, bool isExpanded) {
                 setState(() {
-                  if (isExpanded) {
+                  if (!isExpanded) {
                     _expandedItems.remove(index);
                   } else {
                     _expandedItems.add(index);

example/macos/.gitignore

@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/

example/macos/Flutter/Flutter-Debug.xcconfig

@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"

example/macos/Flutter/Flutter-Release.xcconfig

@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"

example/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -0,0 +1,12 @@
+//
+//  Generated file. Do not edit.
+//
+
+import FlutterMacOS
+import Foundation
+
+import reactive_ble_mobile
+
+func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  ReactiveBlePlugin.register(with: registry.registrar(forPlugin: "ReactiveBlePlugin"))
+}

example/macos/Podfile

@@ -0,0 +1,43 @@
+platform :osx, '10.14'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_macos_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_macos_build_settings(target)
+  end
+end

example/macos/Podfile.lock

@@ -0,0 +1,34 @@
+PODS:
+  - FlutterMacOS (1.0.0)
+  - Protobuf (3.24.3)
+  - reactive_ble_mobile (0.0.1):
+    - Flutter
+    - FlutterMacOS
+    - Protobuf (~> 3.5)
+    - SwiftProtobuf (~> 1.0)
+  - SwiftProtobuf (1.23.0)
+
+DEPENDENCIES:
+  - FlutterMacOS (from `Flutter/ephemeral`)
+  - reactive_ble_mobile (from `Flutter/ephemeral/.symlinks/plugins/reactive_ble_mobile/darwin`)
+
+SPEC REPOS:
+  trunk:
+    - Protobuf
+    - SwiftProtobuf
+
+EXTERNAL SOURCES:
+  FlutterMacOS:
+    :path: Flutter/ephemeral
+  reactive_ble_mobile:
+    :path: Flutter/ephemeral/.symlinks/plugins/reactive_ble_mobile/darwin
+
+SPEC CHECKSUMS:
+  FlutterMacOS: 8f6f14fa908a6fb3fba0cd85dbd81ec4b251fb24
+  Protobuf: 970f7ee93a3a08e3cf64859b8efd95ee32b4f87f
+  reactive_ble_mobile: 856183aeda09f2a676bbaecbea8915c3cb1d33df
+  SwiftProtobuf: b70d65f419fbfe61a2d58003456ca5da58e337d6
+
+PODFILE CHECKSUM: 236401fc2c932af29a9fcf0e97baeeb2d750d367
+
+COCOAPODS: 1.15.2