视频流广告

2.4 其他API说明

• 视频流广告可以通过回调信息获取该广告缓存请求时传入的自定义extra内容。
• getMediaVideoAd获取的广告缓存（MediaVideoAd）是与请求时传入的ATVideoAdPlayer对象绑定

3. 示例代码

具体可参考Demo中的ATMediaVideoViewController.m

- (IMAAVPlayerContentPlayhead *)setUpContentPlayer {
  // Load AVPlayer with path to our content.
  NSURL *contentURL = [NSURL URLWithString:kTestAppContentUrl_MP4];
  self.contentPlayer = [AVPlayer playerWithURL:contentURL];

  // Create a player layer for the player.
  AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.contentPlayer];

  // Size, position, and display the AVPlayer.
  playerLayer.frame = self.videoView.layer.bounds;
  [self.videoView.layer addSublayer:playerLayer];

  // Set up our content playhead and contentComplete callback.
    IMAAVPlayerContentPlayhead *contentPlayhead = [[IMAAVPlayerContentPlayhead alloc] initWithAVPlayer:self.contentPlayer];
  [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(contentDidFinishPlaying:)
                                               name:AVPlayerItemDidPlayToEndTimeNotification
                                             object:self.contentPlayer.currentItem];
    return contentPlayhead;
}

- (void)loadAd {
    
    [[ATAPI sharedInstance] setCustomData:self.currentPlacementIDInfoRuleModel.groupRuleDic forPlacementID:self.currentPlacementIDInfoModel.placementIDString];

    if (!self.videoView.superview) {
        [self.view addSubview:self.videoView];
        self.contentPlayhead = [self setUpContentPlayer];
    }
    
    [self.contentPlayer seekToTime:kCMTimeZero completionHandler:^(BOOL finished) {
        
    }];
    NSMutableDictionary *extra = @{}.mutableCopy;
    //内部浏览器打开
    extra[kATAdMediaVideoExtraKeyInternalBrowserViewController] = self;
    //隐藏倒计时
    extra[kATAdMediaVideoExtraKeyHideCountDown] = @NO;
    //加载视频广告超时时间
    extra[kATAdMediaVideoExtraKeyLoadVideoTimeout] = @8;
    //广告要不要自动播放，对VMAP才有效
    extra[kATAdMediaVideoExtraKeyAutoPlayAdBreaks] = @NO;
    //关闭当前播放信息
    extra[kATAdMediaVideoExtraKeyDisableNowPlayingInfo] = @YES;
    
    [[ATAdManager sharedManager] loadADWithPlacementID:self.currentPlacementIDInfoModel.placementIDString extra:extra controlDataParam:@{@"description_url":@"description_url"} delegate:self mediaVideoContainerView:self.videoView viewController:self];
}

- (void)showAd {
    if (![[ATAdManager sharedManager] adReadyForPlacementID:self.currentPlacementIDInfoModel.placementIDString]) {
        return;
    }
    
    ATShowConfig *showConfig = [[ATShowConfig alloc] initWithScene:nil showCustomExt:@"testShowCustomExt"];
    self.offer = [[ATAdManager sharedManager] mediaVideoObjectWithPlacementID:self.currentPlacementIDInfoModel.placementIDString showConfig:showConfig delegate:self];
    
    [[ATAdManager sharedManager] entryMediaVideoScenarioWithPlacementID:self.currentPlacementIDInfoModel.placementIDString scene:@"11"];
    
    id customNetworkObj = [self.offer customNetworkObj];
    id adsManager = [self.offer adsManager];
    
    [self.contentPlayer seekToTime:kCMTimeZero completionHandler:^(BOOL finished) {
        
    }];
    
    UIView *myTransparentTapOverlay = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 250)];
    myTransparentTapOverlay.backgroundColor = [UIColor yellowColor];
    UIButton *myPauseButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 50, 10)];
    // Substitute "myTransparentTapOverlay" and "myPauseButton" with the elements
    // you want to register as video controls overlays.
    // Make sure to register before ad playback starts.
    IMAFriendlyObstruction *overlayObstruction =
          [[IMAFriendlyObstruction alloc] initWithView:myTransparentTapOverlay
                                               purpose:IMAFriendlyObstructionPurposeNotVisible
                                        detailedReason:@"This overlay is transparent"];
    IMAFriendlyObstruction *pauseButtonObstruction =
          [[IMAFriendlyObstruction alloc] initWithView:myPauseButton
                                               purpose:IMAFriendlyObstructionPurposeMediaControls
                                        detailedReason:@"This is the video player pause button"];
    
    [self.offer registerFriendlyObstruction:overlayObstruction];
    [self.offer registerFriendlyObstruction:pauseButtonObstruction];
    [self.offer unregisterAllFriendlyObstructions];
    if (self.offer.type == ATMediaVideoOfferTypeVMAP) {
        [self.offer contentPlayhead:self.contentPlayhead];
    } else if (self.offer.type == ATMediaVideoOfferTypeVAST) {
        [self.offer start];
    }
}

注意事项

• 请自行管理好load时传入的参数mediaVideoContainerView的展示和销毁逻辑，避免出现错乱。
• 请自行管理好ATMediaVideoOffer对象的销毁逻辑，避免出现错乱。
• VMAP广告需要等待触发IMA Event AD_BREAK_READY后才能调用ATMediaVideoOffer start展示广告