Simulcast, Screen sharing & Various improvements (#4)

* Respect `RTCIceTransportPolicy` enum and organize

* Simplify syntax where possible etc.

* Combine `VideoPreset` and `VideoPresets`

* Default values for `ConnectOptions`

* Build URI instead of String manipulation

* Slight modifications to Exception

* `LiveKitTheme` for example

* `VideoEncoding` class

* Organize imports

* First simulcast implementation

* Remove unnecessary try-catches

* Update Android settings

* Remember uri and token

* example improvements

* `fit` parameter for VideoTrackRenderer

* Simulcast option for example

* Pass `defaultPublishOptions`

* Show only `VideoQuality`

* Pass tests

* Better buildUri logic

* Named parameter to positional

* Explicit imports

* `VideoParameter` instead of `VideoPreset`

* Use `mediaTrack.getSettings` when possible

* Safer dispose logic

* Safer `PCTransport`

Update transport.dart

* Synchronized events for `SignalClient`

* Use logger instead of print

* Make example compile for iOS

* First screen share implementation

* Make example work with screen share

* Example improvement

* Code optimization

* Don't depend on web_socket_channel

* Fix: Unpublish track bug

* Show participant mute state & identity

* Update protos

* Remote mute/unmute

* iOS Background mode

* Separate `createCameraTrack` and `createScreenTrack`

* Clean up

* PB fix

* format

* Fix analyzer warning

* Android clean up

* Update README.md

* Clean up

example/ios/Podfile

@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-# platform :ios, '9.0'
+platform :ios, '12.1'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'
@@ -37,5 +37,14 @@ end
 post_install do |installer|
   installer.pods_project.targets.each do |target|
     flutter_additional_ios_build_settings(target)
+
+    #
+    # Fix deployment target issue
+    # https://stackoverflow.com/questions/63973136/the-ios-deployment-target-iphoneos-deployment-target-is-set-to-8-0-in-flutter
+    #
+    target.build_configurations.each do |config|
+      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '12.1'
+    end
+
   end
 end

example/ios/Podfile.lock

@@ -8,11 +8,14 @@ PODS:
   - Libyuv (1703)
   - path_provider (0.0.1):
     - Flutter
+  - shared_preferences (0.0.1):
+    - Flutter
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
   - flutter_webrtc (from `.symlinks/plugins/flutter_webrtc/ios`)
   - path_provider (from `.symlinks/plugins/path_provider/ios`)
+  - shared_preferences (from `.symlinks/plugins/shared_preferences/ios`)
 
 SPEC REPOS:
   trunk:
@@ -26,6 +29,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/flutter_webrtc/ios"
   path_provider:
     :path: ".symlinks/plugins/path_provider/ios"
+  shared_preferences:
+    :path: ".symlinks/plugins/shared_preferences/ios"
 
 SPEC CHECKSUMS:
   Flutter: 434fef37c0980e73bb6479ef766c45957d4b510c
@@ -33,7 +38,8 @@ SPEC CHECKSUMS:
   GoogleWebRTC: b39a78c4f5cc6b0323415b9233db03a2faa7b0f0
   Libyuv: 5f79ced0ee66e60a612ca97de1e6ccacd187a437
   path_provider: abfe2b5c733d04e238b0d8691db0cfd63a27a93c
+  shared_preferences: af6bfa751691cdc24be3045c43ec037377ada40d
 
-PODFILE CHECKSUM: aafe91acc616949ddb318b77800a7f51bffa2a4c
+PODFILE CHECKSUM: 6055d9653e1011c0b3b671abb92cdea979357e63
 
-COCOAPODS: 1.10.2
+COCOAPODS: 1.10.1

example/ios/Runner.xcodeproj/project.pbxproj

@@ -357,14 +357,14 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = 9Z5V633C2T;
+				DEVELOPMENT_TEAM = J48VV6BZV9;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.livekitExample;
+				PRODUCT_BUNDLE_IDENTIFIER = example.livekit.io;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
@@ -489,14 +489,14 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = 9Z5V633C2T;
+				DEVELOPMENT_TEAM = J48VV6BZV9;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.livekitExample;
+				PRODUCT_BUNDLE_IDENTIFIER = example.livekit.io;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
@@ -515,14 +515,14 @@
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = 9Z5V633C2T;
+				DEVELOPMENT_TEAM = J48VV6BZV9;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.livekitExample;
+				PRODUCT_BUNDLE_IDENTIFIER = example.livekit.io;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";

example/ios/Runner/Info.plist

@@ -22,6 +22,14 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>NSCameraUsageDescription</key>
+	<string>$(PRODUCT_NAME) will use camera</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>$(PRODUCT_NAME) will use microphone</string>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>audio</string>
+	</array>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>
@@ -41,9 +49,5 @@
 	</array>
 	<key>UIViewControllerBasedStatusBarAppearance</key>
 	<false/>
-	<key>NSCameraUsageDescription</key>
-	<string>$(PRODUCT_NAME) will use camera</string>
-	<key>NSMicrophoneUsageDescription</key>
-	<string>$(PRODUCT_NAME) will use microphone</string>
 </dict>
 </plist>