Multiplatform Stock Chart
Reference: https://docs.flutter.dev/development/add-to-app/ios/project-setup
⚠️ This method requires every developer working on your project to have a locally installed version of the Flutter SDK ⚠️
Download or Clone the project
$ git clone https://github.com/wayne90040/Flutter-StockChart-Module.gitFollowing example assumes that your existing application and the Flutter module are in sibling directories.
some/path/
├── Flutter-StockChart-Module/
│
└── iOS-Existing-App/
└── Podfile
If existing iOS App doesn’t already have a Podfile, follow the CocoaPods getting started guide to add a Podfile to your project.
Add the following lines to your Podfile:
flutter_application_path = '../Flutter-StockChart-Module' # according to your clone file name
load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')For each Podfile target that needs to embed Flutter, call install_all_flutter_pods(flutter_application_path).
install_all_flutter_pods(flutter_application_path)flutter_application_path = '../flutter_stock_chart'
load File.join(flutter_application_path, '.ios', 'Flutter', 'podhelper.rb')
platform :ios, '9.0'
target 'ios-flutter-chart-example' do
# Comment the next line if you don't want to use dynamic frameworks
use_frameworks!
# Pods for ios-flutter-chart-example
install_all_flutter_pods(flutter_application_path)
endRun
Run
flutter pub getfirst under flutter project
$ flutter pub get
Run
pod installunder iOS project
$ pod install
Reference: https://docs.flutter.dev/development/add-to-app/ios/add-flutter-screen?tab=engine-swift-tab
Create a FlutterEngine
import UIKit
import Flutter
import FlutterPluginRegistrant
@UIApplicationMain
class AppDelegate: FlutterAppDelegate {
lazy var flutterEngine = FlutterEngine(name: "flutter chart engine")
override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
flutterEngine.run()
GeneratedPluginRegistrant.register(with: flutterEngine)
return super.application(application, didFinishLaunchingWithOptions: launchOptions)
}
...
}Show a FlutterViewController with your FlutterEngine
let engine = (UIApplication.shared.delegate as! AppDelegate).flutterEngine
let vc = FlutterViewController(engine: engine, nibName: nil, bundle: nil)
present(vc, animated: true)Send Data
let channel = FlutterMethodChannel(name: "com.wielun.chart/quote", binaryMessenger: vc.binaryMessenger)
var jsonObject: [String: Any] = [:]
jsonObject["open"] = [double ...]
jsonObject["close"] = [double ...]
jsonObject["high"] = [double ...
jsonObject["low"] = [double ...]
jsonObject["vol"] = [double ...]
var convertToString: String?
do {
let tmp = try JSONSerialization.data(withJSONObject: jsonObject, options: .prettyPrinted)
convertToString = String(data: tmp, encoding: .utf8)
} catch _ {
}
channel.invokeMethod("fromHostToChart", arguments: convertToString)Check flutter version
try
flutter cleanthen
flutter runor
Need to add to project/targets/Build Phases/[CP-User] Run Flutter Build flutter_stock_chart Script
"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed_and_thin
Change build mode to
releaseor SetFLUTTER_BUILD_MODEtoreleaseinBuild Settings/User-Defined
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