# 屏幕共享集成 ![](https://support.huaweicloud.com/sdkreference-meeting/public_sys-resources/note_3.0-zh-cn.png) 屏幕共享：共享自己的手机屏幕的实时界面给其它用户，更加高效地与其它用户沟通。 #### 共享Bundle Id相关说明 ScreenShareExtension插件bundle Id格式: 主App bundle Id + ScreenShareExtension ScreenShareExtensionSetupUI插件bundle Id格式: 主App bundle Id + ScreenShareExtensionSetupUI ``` 例： 主App bundle Id：com.xx.xx ScreenShareExtension插件bundIe Id：com.xx.xx.ScreenShareExtension ScreenShareExtensionSetupUI插件bundIe Id：com.xx.xx.ScreenShareExtensionSetupUI ``` iOS端屏幕共享需要添加iOS Extension并实现相关代码，以下步骤用于说明如何集成SDK进行屏幕共享Extension的开发。 1. 创建新的Extension Target，选择"File-\>New-\>Target-\>Broadcast Upload Extension"，创建Extension Target。 图1添加选择Target ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714496268.png) 图2选择Broadcast Upload Extension，点击"Next"创建 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714336318.png) ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002743935243.png) 图3添加Broadcast Upload Extension后效果（ScreenShareExtension是创建时的名称） ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002744100763.png) 2. 设置Extension的支持系统版本号15.0。 图4Extension设置 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714496378.png) 图5ExtensionUI设置 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714336422.png) 3. 给主工程和Extension添加App Groups，并设置为在[开发准备](https://support.huaweicloud.com/sdkreference-meeting/meeting_22_0725.html)中申请到的groupId。 图6默认没有App Groups ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002744095319.png) 图7添加App Groups，选择"TARGET-\>Signing\&Capabilities-\>Capability" ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002744096821.png) 图8选中App Groups, ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714338064.png) ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002743937017.png) 按照上面三个图片，同理分别为ScreenShareExtension和ScreenShareExtensionSetupUI添加App Groups 图9App Groups添加完成效果 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002744097737.png) 4. 分别给entitlements文件中添加App Groups ID([申请地址](https://developer.apple.com/) 此groupId在初始化的时候也会用到) 图10应用程序添加ID效果 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714338888.png) 图11ScreenShareExtension添加ID效果 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002744097773.png) 图12ScreenShareExtensionSetupUI添加ID效果 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714498902.png) 5. 给ScreenShareExtension 添加HWMExtension.framework，添加配置"TARGETS---\>ScreenShareExtension---\>Build Settings-\>Other Linker Flags" 中添加**-lc++** 。 图13选择"ScreenShareExtension-\>Add Files to" ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002744097847.png) 图14选择HWMExtension.framework添加到Extension ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002743937949.png) ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714499034.png) 图15添加完成的效果 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714499356.png) 6. 配置屏幕共享代码，Extensions 的SampleHandler.m文件中添加代码如下。 图16SampleHandler文件位置 ![](https://support.huaweicloud.com/sdkreference-meeting/figure/zh-cn_image_0000002714499568.png) 文件内容修改groupId后可以直接使用。 ``` #import "SampleHandler.h" #import @interface SampleHandler() @property (strong, nonatomic) HWMExensionDataManager *screenShareManager; @end @implementation SampleHandler - (instancetype)init { if (self = [super init]) { // [HWMExtensionAppGroup setAppGroup:@"group.com.huawei.xxx"];// 这里替换成自己申请的appgroup self.screenShareManager = [[HWMExensionDataManager alloc] init]; self.screenShareManager.delegate = self; } return self; } - (void)dealloc { self.screenShareManager = nil; } - (void)broadcastStartedWithSetupInfo:(NSDictionary *)setupInfo { // User has requested to start the broadcast. Setup info from the UI extension can be supplied but optional. [self.screenShareManager broadcastStartedWithSetupInfo:setupInfo]; } - (void)broadcastPaused { // User has requested to pause the broadcast. Samples will stop being delivered. [self.screenShareManager broadcastPaused]; } - (void)broadcastResumed { // User has requested to resume the broadcast. Samples delivery will resume. [self.screenShareManager broadcastResumed]; } - (void)broadcastFinished { // User has requested to finish the broadcast. [self.screenShareManager broadcastFinished]; } - (void)processSampleBuffer:(CMSampleBufferRef)sampleBuffer withType:(RPSampleBufferType)sampleBufferType { switch (sampleBufferType) { case RPSampleBufferTypeVideo: // Handle video sample buffer [self.screenShareManager processSampleBuffer:sampleBuffer withType:RPSampleBufferTypeVideo]; break; case RPSampleBufferTypeAudioApp: // Handle audio sample buffer for app audio // 音频共享相关 if ([self currentIsAudioShare]) { [self.screenShareManager processSampleBuffer:sampleBuffer withType:RPSampleBufferTypeAudioApp]; } break; case RPSampleBufferTypeAudioMic: // Handle audio sample buffer for mic audio break; default: break; } } - (void)screenShareManagerFinishBroadcastWithError:(NSError *)error { [self.screenShareManager broadcastFinished]; [self finishBroadcastWithError: error]; } - (BOOL)currentIsAudioShare { NSUserDefaults *userDefault = [[NSUserDefaults alloc] initWithSuiteName:[HWMExtensionAppGroup getAppGroup]]; NSString *audioShareType = [userDefault objectForKey:kHWMExtensionAudioShareKey]; if ([audioShareType isEqualToString:kHWMExtensionAudioShareValue]) { return YES; } return NO; } @end ```