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samples/add_to_app/ios_using_prebuilt_module/IOSUsingPrebuiltModule/ViewController.swift

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1.9 KiB

// Copyright 2019 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import UIKit
import Flutter
class ViewController: UIViewController {
@IBOutlet weak var counterLabel: UILabel!
var methodChannel : FlutterMethodChannel?
var count = 0
override func viewDidLoad() {
super.viewDidLoad()
if let flutterEngine = (UIApplication.shared.delegate as? AppDelegate)?.flutterEngine {
methodChannel = FlutterMethodChannel(name: "dev.flutter.example/counter",
binaryMessenger: flutterEngine.binaryMessenger)
methodChannel?.setMethodCallHandler({ [weak self]
(call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
if let strongSelf = self {
switch(call.method) {
case "incrementCounter":
strongSelf.count += 1
strongSelf.counterLabel.text = "Current counter: \(strongSelf.count)"
strongSelf.reportCounter()
case "requestCounter":
strongSelf.reportCounter()
default:
// Unrecognized method name
print("Unrecognized method name: \(call.method)")
}
}
})
}
}
func reportCounter() {
methodChannel?.invokeMethod("reportCounter", arguments: count)
}
@IBAction func buttonWasTapped(_ sender: Any) {
if let flutterEngine = (UIApplication.shared.delegate as? AppDelegate)?.flutterEngine {
let flutterViewController = FlutterViewController(engine: flutterEngine, nibName: nil, bundle: nil)
self.present(flutterViewController, animated: false, completion: nil)
}
}
}