iOS

#import "SampleHandler.h"
@import TXLiteAVSDK_ReplayKitExt;
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#define APPGROUP @"group.com.tencent.liteav.RPLiveStreamShare"
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@interface SampleHandler() <TXReplayKitExtDelegate>
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@end
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@implementation SampleHandler
// 注意：此处的 APPGROUP 需要改成上文中的创建的 App Group Identifier。
- (void)broadcastStartedWithSetupInfo:(NSDictionary<NSString *,NSObject *> *)setupInfo {
    [[TXReplayKitExt sharedInstance] setupWithAppGroup:APPGROUP delegate:self];
}
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- (void)broadcastPaused {
    // User has requested to pause the broadcast. Samples will stop being delivered.
}
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- (void)broadcastResumed {
    // User has requested to resume the broadcast. Samples delivery will resume.
}
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- (void)broadcastFinished {
    [[TXReplayKitExt sharedInstance] finishBroadcast];
    // User has requested to finish the broadcast.
}
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#pragma mark - TXReplayKitExtDelegate
- (void)broadcastFinished:(TXReplayKitExt *)broadcast reason:(TXReplayKitExtReason)reason
{
    NSString *tip = @"";
    switch (reason) {
        case TXReplayKitExtReasonRequestedByMain:
            tip = @"屏幕共享已结束";
            break;
        case TXReplayKitExtReasonDisconnected:
            tip = @"应用断开";
            break;
        case TXReplayKitExtReasonVersionMismatch:
            tip = @"集成错误（SDK 版本号不相符合）";
            break;
    }
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    NSError *error = [NSError errorWithDomain:NSStringFromClass(self.class)
                                         code:0
                                     userInfo:@{
                                         NSLocalizedFailureReasonErrorKey:tip
                                     }];
    [self finishBroadcastWithError:error];
}
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- (void)processSampleBuffer:(CMSampleBufferRef)sampleBuffer withType:(RPSampleBufferType)sampleBufferType {
    switch (sampleBufferType) {
        case RPSampleBufferTypeVideo:
            [[TXReplayKitExt sharedInstance] sendVideoSampleBuffer:sampleBuffer];
            break;
        case RPSampleBufferTypeAudioApp:
            // Handle audio sample buffer for app audio
            break;
        case RPSampleBufferTypeAudioMic:
            // Handle audio sample buffer for mic audio
            break;
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        default:
            break;
    }
}
@end

// 开始屏幕分享，需要将 APPGROUP 替换为上述步骤中创建的 App Group Identifier。
- (void)startScreenCapture {
    TRTCVideoEncParam *videoEncConfig = [[TRTCVideoEncParam alloc] init];
    videoEncConfig.videoResolution = TRTCVideoResolution_1280_720;
    videoEncConfig.videoFps = 10;
    videoEncConfig.videoBitrate = 2000;
    //需要将 APPGROUP 替换为上述步骤中创建的 App Group Identifier:
    [[TRTCCloud sharedInstance] startScreenCaptureByReplaykit:videoEncConfig
                                                     appGroup:APPGROUP];
}
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// 停止屏幕分享
- (void)stopScreenCapture {
    [[TRTCCloud sharedInstance] stopScreenCapture];
}
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// 屏幕分享的启动事件通知，可以通过 TRTCCloudDelegate 进行接收
- (void)onScreenCaptureStarted {
    [self showTip:@"屏幕分享开始"];
}

// 自定义按钮响应方法
- (IBAction)onScreenButtonTapped:(id)sender {
    [TRTCBroadcastExtensionLauncher launch];
}