flutter_ali_camera/ios/Classes/CameraViewFactory1.swift

//
//  CameraViewFactory1.swift
//  Pods
//
//  Created by jiajunzhou on 2020/4/5.
//
import Foundation
import Flutter
import UIKit
import AliyunVideoSDKPro
public class CameraViewFactory1 :NSObject,FlutterPlatformViewFactory{
    var messenger: FlutterBinaryMessenger!
    public func create(withFrame frame: CGRect, viewIdentifier viewId: Int64, arguments args: Any?) -> FlutterPlatformView {
       return CameraView1(withFrame: frame, viewIdentifier: viewId, arguments: args, binaryMessenger: messenger)
    }
    @objc public init(messenger: (NSObject & FlutterBinaryMessenger)?) {
        super.init()
        self.messenger = messenger
    }
    
}
public class CameraView1: NSObject, FlutterPlatformView,AliyunIRecorderDelegate{
    public func recorderDeviceAuthorization(_ status: AliyunIRecorderDeviceAuthor) {
          if status == AliyunIRecorderDeviceAuthor.enabled {
                        print("sdk enabled")
                    } else {
                        print("sdk disabled")
                    }
    }
    public func recorderDidStopRecording(){
        print("recorderDidStopRecording.....");
    }
        
//   调用stopRecording停止录制后,SDK内部会执行保存视频相关操作，收到AliyunIRecorderDelegate的- (void)recorderDidStopRecording回调后才能继续执行其他操作。
//    startRecording和stopRecording需要成对出现，可以调用一次或多次，对应SDK内部会生成一段或多段临时视频文件。
   
    
    
    public func view() -> UIView {
        return self.cameraView
    }
    fileprivate var viewId: Int64!
       fileprivate var cameraView: UIView!
       fileprivate var channel: FlutterMethodChannel!
       fileprivate var recordPath: String?
       fileprivate var taskPath: String?
       fileprivate var recorder: AliyunIRecorder!
       fileprivate var composeResult: FlutterResult?
    //初始设置参数
                var videoWidth : Int!
                 var videoHeight : Int!
                 var fps : Int!
                 var videoCodecs : Int!
                 var crf : Int!
                 var encoderFps : Int!
                 var quality : Int!
                 var videoBitrate : Int!
                 var gop : Int!
    var first :Bool = true;
    public init(withFrame frame: CGRect, viewIdentifier viewId: Int64, arguments args: Any?, binaryMessenger: FlutterBinaryMessenger) {
         super.init()
         
         self.viewId = viewId
        
         self.cameraView = UIView()
         self.cameraView.frame = UIScreen.main.bounds
         self.channel = FlutterMethodChannel(name: "flutter_ali_camera", binaryMessenger: binaryMessenger)
         self.channel.setMethodCallHandler({
             [weak self]
             (call: FlutterMethodCall, result: @escaping FlutterResult) -> Void in
             if let this = self {
                 this.onMethodCall(call: call, result: result)
             }
         })
     }
    func onMethodCall(call: FlutterMethodCall, result: @escaping FlutterResult) {
        if(call.method=="initializeSdk"){
            result(true);
        }
        else if(call.method=="create"){
            let args = call.arguments as? [String: Any]
            var dics = args!["recordOption"] as?  Dictionary<String, Int>
             self.videoHeight = dics!["videoHeight"]
             self.videoWidth = dics!["videoWidth"]
             self.fps = dics!["fps"]
             self.videoCodecs = dics!["videoCodecs"]
             self.crf = dics!["crf"]
             self.encoderFps = dics!["encoderFps"]
             self.quality = dics!["quality"]
             self.videoBitrate = dics!["videoBitrate"]
             self.gop = dics!["gop"]
            
//                 recorder = AliyunIRecorder.init(delegate: self, videoSize: CGSize(width: 720 , height: 1080))
//                       recorder?.preview = self.cameraView
//                       recorder?.taskPath = self.taskPath
//                       recorder?.clipManager?.maxDuration = 0
                 
               result(true);
        }else if(call.method=="startPreview"){
            if(first){
                first=false;
                recorder = AliyunIRecorder.init(delegate: self, videoSize: CGSize(width: videoWidth , height: videoHeight))
                    recorder?.preview = self.cameraView
                    recorder?.taskPath = self.taskPath
                    recorder?.clipManager?.maxDuration = 0
                    recorder?.clipManager?.deleteAllPart()
                    recorder.beautifyStatus = true
            }
        
                recorder?.startPreview(withPositon: AliyunIRecorderCameraPosition.front)
         
        }
        else if(call.method=="stopPreview"){
            onStop();
              result(true);
        }
        else if(call.method=="setBeauty"){
            
            let args = call.arguments as?  Dictionary<String, Int>
            let  level =  args!["level"] as! Int
            recorder.beautifyValue =  Int32(level)
        }
        else if(call.method=="switchCamera"){
            recorder.switchCameraPosition();
            result(true);
        }
        else if(call.method=="setFilter"){
            //未验证
            let args = call.arguments as?  Dictionary<String, String>
            let path = args?["path"]
            if path == nil || path?.count == 0 {
              // delete filter
            recorder?.deleteFilter()
               return
            }
         recorder?.apply(AliyunEffectFilter.init(file: path))
        }
        else if(call.method=="startRecord"){
            let args = call.arguments as?  Dictionary<String, Int>
            let maxDuration = args!["max"] as! Int
            var fileName = args!["recordPath"] as! String
            print("fileNamefileNamefileName=="+fileName)
            recorder?.outputPath = fileName
         
            recorder?.clipManager?.maxDuration = CGFloat(Float(maxDuration) / 1000.0)
            recorder?.startRecording()
        }
        else if(call.method=="startCompose"){
            
        }
        else if(call.method=="recordUpdate"){
            
        }
        else if(call.method=="onDestroy"){
            
        }
        else {
            result(FlutterMethodNotImplemented)
        }
    }
    
    

    private func onStop() {
        recorder?.stopRecording()
        recorder?.stopPreview()
    }
    
}