集成 RTC SDK 后，你可以使用其中接口快速构建基础应用，实现基本实时音视频通话；你也能通过阅读代码，了解音视频通话的最佳实践。 如果你想了解完整的项目实现，参看快速开始 Demo。

• Unity Editor 2017+

• Android Studio 3.5+

• XCode 14.1 +

• 获取 Appid

• 获取 RTC SDK 文件

下载 SDK 离线包，然后导入到 Unity 工程中，如下图所示：

在 PlayerSetting -> Other Settings 下，设置 Scripting Runtime Version 为 Experimental (.Net 4.6 Equivalent)。

配置 Gradle

在 PlayerSetting -> Publishing Settings 下，勾选 CustomGradleTemplate, 如果没有 CustomGradleTemplate， 则勾选 CustomLauncherGradle Template。

之后会在 Assets -> Plugins -> Android 目录下生成 Template.gradle 文件，然后在里面添加代码：

implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:support-v4:28.0.0'
implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.2.61'

packagingOptions
{
   pickFirst "lib/*/libc++_shared.so"
}
kotlin

配置 XCodePostProcess

在 Assets 文件下新建 Editor 目录，在 Editor 目录下新建 XCodePostProcess.cs 文件。

在 XCodePostProcess.cs 里面添加生成 XCode 工程的配置代码：

using UnityEditor;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;
using UnityEditor.iOS.Xcode.Extensions;
using System.IO;

public static class XCodePostProcess
{
    private static void AddEmbedFramework(PBXProject project, string targetGuid, string frameworkName) 
    {
#if !UNITY_2019_3_OR_NEWER
        const string defaultLocationInProj = "Frameworks/RTCVideo/Plugins/iOS";
        string framework = Path.Combine(defaultLocationInProj, frameworkName);
        string fileGuid = project.AddFile(framework, "Frameworks/" + framework, PBXSourceTree.Sdk);
        PBXProjectExtensions.AddFileToEmbedFrameworks(project, targetGuid, fileGuid);
#endif
    }

    [PostProcessBuild(999)]
    public static void OnPostProcessBuild(BuildTarget buildTarget, string path)
    {
        if(buildTarget == BuildTarget.iOS)
        {
            string projectPath = path + "/Unity-iPhone.xcodeproj/project.pbxproj";

            PBXProject pbxProject = new PBXProject();
            pbxProject.ReadFromFile(projectPath);
#if !UNITY_2019_3_OR_NEWER
            string mainTarget = PBXProject.GetUnityTargetName();
#else
            string mainTarget = pbxProject.GetUnityMainTargetGuid();
#endif
            string targetGuid = pbxProject.TargetGuidByName(mainTarget);
            pbxProject.SetBuildProperty(targetGuid, "ENABLE_BITCODE", "NO");
            pbxProject.SetBuildProperty(targetGuid, "CODE_SIGN_STYLE", "Manual");
            pbxProject.SetBuildProperty(targetGuid, "PRODUCT_NAME", "VideoSDKDemo");
        
            AddEmbedFramework(pbxProject, targetGuid, "VolcEngineRTC.framework");
            AddEmbedFramework(pbxProject, targetGuid, "VolcEngineRTCScreenCapturer.framework");
            AddEmbedFramework(pbxProject, targetGuid, "ByteRTCCWrapper.framework");
            pbxProject.SetBuildProperty(targetGuid, "LD_RUNPATH_SEARCH_PATHS", "$(inherited) @executable_path/Frameworks");
            pbxProject.WriteToFile (projectPath);

            // 修改plist
            string plistPath = path + "/Info.plist";
            PlistDocument plist = new PlistDocument();
            plist.ReadFromString(File.ReadAllText(plistPath));
            PlistElementDict rootDict = plist.root;
            rootDict.SetString("NSMicrophoneUsageDescription", "App需要您的同意,才能访问麦克风");
            rootDict.SetString("NSCameraUsageDescription", "App需要您的同意,才能访问相机");
            rootDict.SetString("CFBundleIdentifier", "${PRODUCT_BUNDLE_IDENTIFIER}");
            PlistElementArray backgroundModesArray = rootDict.CreateArray("UIBackgroundModes");
            backgroundModesArray.AddString("audio");
            plist.WriteToFile(plistPath);
        }
    }
}
c#

public int CreateRTCVideo(RTCVideoEngineParams initParams)
 
  public struct RTCVideoEngineParams {
        /** {zh}
         * @brief 应用 ID。
         */
        public string AppID;
        /** {zh}
         * @brief 初始化参数。
         */
        public Dictionary<string, object> Params;
    };
c#

public int SetVideoEncoderConfig(VideoEncoderConfig maxSolution)
c#

void SetLocalVideoSink(StreamIndex index, VideoSinkPixelFormat requiredFormat)
c#

public void StartVideoCapture()
c#

public void StartAudioCapture()
c#

IRTCVideoRoom  CreateRTCRoom(string  roomID)
c#

int JoinRoom(string  token, UserInfo info, MultiRoomConfig roomConfig)
c#

void OnRoomStateChangedEventHandler(string  roomID,  string  userID,  int  state,  string  ExtraInfo)
c#

void OnUserJoinedEventHandler(string  roomID, UserInfo userInfo,  int  elapsed)
c#

void OnFirstRemoteVideoFrameDecodedEventHandler(RemoteStreamKey key, VideoFrameInfo info)
c#

void SetRemoteVideoSink(RemoteStreamKey streamKey, VideoSinkPixelFormat requiredFormat)
c#

void OnUserLeaveEventHandler(string  roomID,  string  userID, UserOfflineReason reason)
c#

void LeaveRoom()
c#

void DestroyRTCVideo()
c#