原生视频广告

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前提条件

GADMediaContent

借助原生广告，您可以访问 GADMediaContent 类，该类用于获取与媒体内容（可以是视频或者图片）相关的信息。该类还可用于控制针对视频广告播放事件的监听行为。您可以通过广告的 .mediaContent 属性访问媒体内容对象。

GADMediaContent 对象包含视频的宽高比和时长等信息。以下代码段显示了如何获取原生广告的宽高比和时长。

Swift

if myNativeAd.mediaContent.hasVideoContent {
  let mediaAspectRatio = CGFloat(myNativeAd.mediaContent.aspectRatio)
  let duration = myNativeAd.mediaContent.duration
}

Objective-C

if(myNativeAd.mediaContent.hasVideoContent) {
  CGFloat mediaAspectRatio = myNativeAd.mediaContent.aspectRatio;
  NSTimeInterval duration = myNativeAd.mediaContent.duration;
}

GADVideoController

GADMediaContent 对象具有对 GADVideoController 对象的引用。GADVideoController 对象可让发布商响应视频事件。

通过订单项投放的广告也可使用 GADVideoController 控制。

可通过调用 GADMediaContent.videoController 获取此 GADVideoController 对象。

视频事件的回调

要处理特定视频事件，您需要写入一个类来实现 GADVideoControllerDelegate 协议。该协议的所有方法都是可选的。

以下示例展示了如何实现代理协议：

Swift

class ViewController: NativeAdLoaderDelegate, VideoControllerDelegate {
  private var adLoader: AdLoader?

  func viewDidLoad() {
    super.viewDidLoad()

    let videoOptions = VideoOptions()
    videoOptions.customControlsRequested = true
    adLoader = AdLoader(
        adUnitID: "ca-app-pub-3940256099942544/3986624511",
        rootViewController: self,
        adTypes: [.native],
        options: [videoOptions])
    adLoader?.delegate = self
    adLoader?.load(AdManagerRequest())

  }

  func adLoader(
      _ adLoader: AdLoader?,
      didReceive nativeAd: NativeAd?
  ) {
    // Set the videoController's delegate to be notified of video events.
    nativeAd?.mediaContent.videoController.delegate = self
  }

  // VideoControllerDelegate methods
  func videoControllerDidPlayVideo(_ videoController: VideoController) {
    // Implement this method to receive a notification when the video controller
    // begins playing the ad.
  }

  func videoControllerDidPauseVideo(_ videoController: VideoController) {
    // Implement this method to receive a notification when the video controller
    // pauses the ad.
  }

  func videoControllerDidEndVideoPlayback(_ videoController: VideoController) {
    // Implement this method to receive a notification when the video controller
    // stops playing the ad.
  }

  func videoControllerDidMuteVideo(_ videoController: VideoController) {
    // Implement this method to receive a notification when the video controller
    // mutes the ad.
  }

  func videoControllerDidUnmuteVideo(_ videoController: VideoController) {
    // Implement this method to receive a notification when the video controller
    // unmutes the ad.
  }
}

Objective-C

@interface ViewController () <GADNativeAdLoaderDelegate,
    GADVideoControllerDelegate>
@property(nonatomic, strong) GADAdLoader *adLoader;

@end

@implementation ViewController
- (void)viewDidLoad {
  [super viewDidLoad];

  GADVideoOptions *videoOptions = [[GADVideoOptions alloc] init];
  videoOptions.customControlsRequested = YES;
  self.adLoader =
      [[GADAdLoader alloc] initWithAdUnitID:@"ca-app-pub-3940256099942544/3986624511"
                         rootViewController:self
                                    adTypes:@[ GADAdLoaderAdTypeNative ]
                                    options:@[ videoOptions ]];
  self.adLoader.delegate = self;
  [self.adLoader loadRequest:[GAMRequest request]];

}

- (void)adLoader:(GADAdLoader *)adLoader
    didReceiveNativeAd:(GADNativeAd *)nativeAd {
  // Set the videoController's delegate to be notified of video events.
  nativeAd.mediaContent.videoController.delegate = self;
}

// GADVideoControllerDelegate methods
- (void)videoControllerDidPlayVideo:(nonnull GADVideoController *)videoController {
  // Implement this method to receive a notification when the video controller
  // begins playing the ad.
}

- (void)videoControllerDidPauseVideo:(nonnull GADVideoController *)videoController {
  // Implement this method to receive a notification when the video controller
  // pauses the ad.
}

- (void)videoControllerDidEndVideoPlayback:(nonnull GADVideoController *)videoController {
  // Implement this method to receive a notification when the video controller
  // stops playing the ad.
}

- (void)videoControllerDidMuteVideo:(nonnull GADVideoController *)videoController {
  // Implement this method to receive a notification when the video controller
  // mutes the ad.
}

- (void)videoControllerDidUnmuteVideo:(nonnull GADVideoController *)videoController {
  // Implement this method to receive a notification when the video controller
  // unmutes the ad.
}

@end

有关如何呈现原生广告的更多指导，请参阅原生广告政策和指南。