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原生進階

選取平台： Android iOS

顯示系統定義的原生廣告格式

原生廣告載入後，您的應用程式會透過 GADAdLoaderDelegate 通訊協定訊息，收到一個原生廣告物件，接著負責顯示廣告 (不一定要立即顯示)。為方便呈現系統定義的廣告格式，SDK 提供了一些實用資源。

GADNativeAdView

GADNativeAd 對應的「廣告檢視區塊」類別是 GADNativeAdView。這個廣告檢視區塊類別是一個 UIView，供發布商用來呈現廣告。例如，一個 GADNativeAdView 可以顯示單一的 GADNativeAd 例項。所有用來呈現廣告素材資源的 UIView 物件，都應做為這個 GADNativeAdView 物件的子檢視區塊。

舉例來說，如要在 UITableView 中顯示廣告，其中一個儲存格的檢視區塊階層可能如下所示：

GADNativeAdView 類別也提供 IBOutlets，用於註冊每個素材資源所用的檢視區塊，以及註冊 GADNativeAd 物件本身的方法。透過這種方式註冊檢視區塊後，SDK 就能自動處理以下工作：

記錄點擊。
記錄曝光 (當廣告的第一個像素出現在螢幕上時)。
顯示 AdChoices 廣告標籤。

AdChoices 廣告標籤

對於間接原生廣告 (透過 Ad Manager 候補廣告、Ad Exchange 或 AdSense 放送)，SDK 會自動加入 AdChoices 廣告標籤。請在原生廣告檢視區塊中，預留一個您偏好的角落，供系統自動插入 AdChoices 標誌，並確保圖示在該位置清晰可見。如要進一步瞭解這個廣告標籤的外觀與功能，請參閱程式輔助原生廣告導入指南。

程式輔助原生廣告的廣告標示

顯示程式輔助原生廣告時，必須加上廣告標示，表明該檢視區塊為廣告內容，詳情請參閱政策規範。

程式碼範例

本節說明如何用從 xib 檔案動態載入的檢視區塊，來顯示原生廣告。當 GADAdLoaders 設為請求多種格式時，這種做法非常實用。

設計 UIView 布局

第一步是擺放用來呈現原生廣告素材資源的 UIViews。您可以像建立其他 xib 檔案一樣，在 Interface Builder 中完成這項設定。以下是一個原生廣告版面配置範例：

請注意圖片右上方的「Custom Class」值已設為

GADNativeAdView，這個類別就是用來呈現 GADNativeAd 的廣告檢視區塊。

您也需要設定 GADMediaView 的自訂類別，用於呈現廣告的影片或圖片。

將 outlet 連結至檢視區塊

當檢視區塊就位，版面配置也已指定正確的廣告檢視區塊類別後，請將廣告檢視區塊的素材資源 outlet，連結至已建立的 UIViews。以下示範如何將廣告檢視區塊的素材資源 outlet，連結至建立給廣告的 UIViews：

在 outlet 面板中，GADNativeAdView 中的 outlet 已連結至 Interface Builder 中擺放的 UIViews。這樣 SDK 就能知道每個 UIView 會顯示的素材資源。另請注意，這些 outlet 代表廣告中可點擊的檢視區塊。

顯示廣告

完成版面配置並連結 outlet 後，請在應用程式中加入下列程式碼，讓廣告載入後能立即顯示：

Swift

func adLoader(_ adLoader: AdLoader, didReceive nativeAd: NativeAd) {
  // ...

  // Set ourselves as the native ad delegate to be notified of native ad events.
  nativeAd.delegate = self

  // Populate the native ad view with the native ad assets.
  // The headline and mediaContent are guaranteed to be present in every native ad.
  (nativeAdView.headlineView as? UILabel)?.text = nativeAd.headline
  nativeAdView.mediaView?.mediaContent = nativeAd.mediaContent

  // Some native ads will include a video asset, while others do not. Apps can use the
  // GADVideoController's hasVideoContent property to determine if one is present, and adjust their
  // UI accordingly.
  let mediaContent = nativeAd.mediaContent
  if mediaContent.hasVideoContent {
    // By acting as the delegate to the GADVideoController, this ViewController receives messages
    // about events in the video lifecycle.
    mediaContent.videoController.delegate = self
    videoStatusLabel.text = "Ad contains a video asset."
  } else {
    videoStatusLabel.text = "Ad does not contain a video."
  }

  // This app uses a fixed width for the GADMediaView and changes its height to match the aspect
  // ratio of the media it displays.
  if let mediaView = nativeAdView.mediaView, nativeAd.mediaContent.aspectRatio > 0 {
    let aspectRatioConstraint = NSLayoutConstraint(
      item: mediaView,
      attribute: .width,
      relatedBy: .equal,
      toItem: mediaView,
      attribute: .height,
      multiplier: CGFloat(nativeAd.mediaContent.aspectRatio),
      constant: 0)
    mediaView.addConstraint(aspectRatioConstraint)
    nativeAdView.layoutIfNeeded()
  }

  // These assets are not guaranteed to be present. Check that they are before
  // showing or hiding them.
  (nativeAdView.bodyView as? UILabel)?.text = nativeAd.body
  nativeAdView.bodyView?.isHidden = nativeAd.body == nil

  (nativeAdView.callToActionView as? UIButton)?.setTitle(nativeAd.callToAction, for: .normal)
  nativeAdView.callToActionView?.isHidden = nativeAd.callToAction == nil

  (nativeAdView.iconView as? UIImageView)?.image = nativeAd.icon?.image
  nativeAdView.iconView?.isHidden = nativeAd.icon == nil

  (nativeAdView.starRatingView as? UIImageView)?.image = imageOfStars(from: nativeAd.starRating)
  nativeAdView.starRatingView?.isHidden = nativeAd.starRating == nil

  (nativeAdView.storeView as? UILabel)?.text = nativeAd.store
  nativeAdView.storeView?.isHidden = nativeAd.store == nil

  (nativeAdView.priceView as? UILabel)?.text = nativeAd.price
  nativeAdView.priceView?.isHidden = nativeAd.price == nil

  (nativeAdView.advertiserView as? UILabel)?.text = nativeAd.advertiser
  nativeAdView.advertiserView?.isHidden = nativeAd.advertiser == nil

  // In order for the SDK to process touch events properly, user interaction should be disabled.
  nativeAdView.callToActionView?.isUserInteractionEnabled = false

  // Associate the native ad view with the native ad object. This is
  // required to make the ad clickable.
  // Note: this should always be done after populating the ad views.
  nativeAdView.nativeAd = nativeAd
}ViewController.swift

SwiftUI

建立檢視區塊模型

您可以建立檢視區塊模型，用於載入原生廣告及發布廣告資料異動：

import GoogleMobileAds

class NativeAdViewModel: NSObject, ObservableObject, NativeAdLoaderDelegate {
  @Published var nativeAd: NativeAd?
  private var adLoader: AdLoader!

  func refreshAd() {
    adLoader = AdLoader(
      adUnitID: "ca-app-pub-3940256099942544/3986624511",
      // The UIViewController parameter is optional.
      rootViewController: nil,
      adTypes: [.native], options: nil)
    adLoader.delegate = self
    adLoader.load(Request())
  }

  func adLoader(_ adLoader: AdLoader, didReceive nativeAd: NativeAd) {
    // Native ad data changes are published to its subscribers.
    self.nativeAd = nativeAd
    nativeAd.delegate = self
  }

  func adLoader(_ adLoader: AdLoader, didFailToReceiveAdWithError error: Error) {
    print("\(adLoader) failed with error: \(error.localizedDescription)")
  }
}NativeAdViewModel.swift

建立 UIViewRepresentable

建立 NativeView 的 UIViewRepresentable，並監控 ViewModel 類別中資料的異動。

private struct NativeAdViewContainer: UIViewRepresentable {
  typealias UIViewType = NativeAdView

  // Observer to update the UIView when the native ad value changes.
  @ObservedObject var nativeViewModel: NativeAdViewModel

  func makeUIView(context: Context) -> NativeAdView {
    return
      Bundle.main.loadNibNamed(
        "NativeAdView",
        owner: nil,
        options: nil)?.first as! NativeAdView
  }

  func updateUIView(_ nativeAdView: NativeAdView, context: Context) {
    guard let nativeAd = nativeViewModel.nativeAd else { return }

    // Each UI property is configurable using your native ad.
    (nativeAdView.headlineView as? UILabel)?.text = nativeAd.headline

    nativeAdView.mediaView?.mediaContent = nativeAd.mediaContent

    (nativeAdView.bodyView as? UILabel)?.text = nativeAd.body

    (nativeAdView.iconView as? UIImageView)?.image = nativeAd.icon?.image

    (nativeAdView.starRatingView as? UIImageView)?.image = imageOfStars(from: nativeAd.starRating)

    (nativeAdView.storeView as? UILabel)?.text = nativeAd.store

    (nativeAdView.priceView as? UILabel)?.text = nativeAd.price

    (nativeAdView.advertiserView as? UILabel)?.text = nativeAd.advertiser

    (nativeAdView.callToActionView as? UIButton)?.setTitle(nativeAd.callToAction, for: .normal)

    // For the SDK to process touch events properly, user interaction should be disabled.
    nativeAdView.callToActionView?.isUserInteractionEnabled = false

    // Associate the native ad view with the native ad object. This is required to make the ad
    // clickable.
    // Note: this should always be done after populating the ad views.
    nativeAdView.nativeAd = nativeAd
  }NativeContentView.swift

將檢視區塊新增至檢視區塊階層

以下示範如何將 UIViewRepresentable 新增至檢視區塊階層：

struct NativeContentView: View {
  // Single source of truth for the native ad data.
  @StateObject private var nativeViewModel = NativeAdViewModel()

  var body: some View {
    ScrollView {
      VStack(spacing: 20) {
        // Updates when the native ad data changes.
        NativeAdViewContainer(nativeViewModel: nativeViewModel)
          .frame(minHeight: 300)  // minHeight determined from xib.NativeContentView.swift

Objective-C

- (void)adLoader:(GADAdLoader *)adLoader didReceiveNativeAd:(GADNativeAd *)nativeAd {
  // ...

  GADNativeAdView *nativeAdView = self.nativeAdView;

  // Set ourselves as the ad delegate to be notified of native ad events.
  nativeAd.delegate = self;

  // Populate the native ad view with the native ad assets.
  // The headline and mediaContent are guaranteed to be present in every native ad.
  ((UILabel *)nativeAdView.headlineView).text = nativeAd.headline;
  nativeAdView.mediaView.mediaContent = nativeAd.mediaContent;

  // This app uses a fixed width for the GADMediaView and changes its height
  // to match the aspect ratio of the media content it displays.
  if (nativeAdView.mediaView != nil && nativeAd.mediaContent.aspectRatio > 0) {
    NSLayoutConstraint *aspectRatioConstraint =
        [NSLayoutConstraint constraintWithItem:nativeAdView.mediaView
                                     attribute:NSLayoutAttributeWidth
                                     relatedBy:NSLayoutRelationEqual
                                        toItem:nativeAdView.mediaView
                                     attribute:NSLayoutAttributeHeight
                                    multiplier:(nativeAd.mediaContent.aspectRatio)
                                      constant:0];
    [nativeAdView.mediaView addConstraint:aspectRatioConstraint];
    [nativeAdView layoutIfNeeded];
  }

  if (nativeAd.mediaContent.hasVideoContent) {
    // By acting as the delegate to the GADVideoController, this ViewController
    // receives messages about events in the video lifecycle.
    nativeAd.mediaContent.videoController.delegate = self;

    self.videoStatusLabel.text = @"Ad contains a video asset.";
  } else {
    self.videoStatusLabel.text = @"Ad does not contain a video.";
  }

  // These assets are not guaranteed to be present. Check that they are before
  // showing or hiding them.
  ((UILabel *)nativeAdView.bodyView).text = nativeAd.body;
  nativeAdView.bodyView.hidden = nativeAd.body ? NO : YES;

  [((UIButton *)nativeAdView.callToActionView) setTitle:nativeAd.callToAction
                                               forState:UIControlStateNormal];
  nativeAdView.callToActionView.hidden = nativeAd.callToAction ? NO : YES;

  ((UIImageView *)nativeAdView.iconView).image = nativeAd.icon.image;
  nativeAdView.iconView.hidden = nativeAd.icon ? NO : YES;

  ((UIImageView *)nativeAdView.starRatingView).image = [self imageForStars:nativeAd.starRating];
  nativeAdView.starRatingView.hidden = nativeAd.starRating ? NO : YES;

  ((UILabel *)nativeAdView.storeView).text = nativeAd.store;
  nativeAdView.storeView.hidden = nativeAd.store ? NO : YES;

  ((UILabel *)nativeAdView.priceView).text = nativeAd.price;
  nativeAdView.priceView.hidden = nativeAd.price ? NO : YES;

  ((UILabel *)nativeAdView.advertiserView).text = nativeAd.advertiser;
  nativeAdView.advertiserView.hidden = nativeAd.advertiser ? NO : YES;

  // In order for the SDK to process touch events properly, user interaction
  // should be disabled.
  nativeAdView.callToActionView.userInteractionEnabled = NO;

  // Associate the native ad view with the native ad object. This is
  // required to make the ad clickable.
  // Note: this should always be done after populating the ad views.
  nativeAdView.nativeAd = nativeAd;
}ViewController.m

GitHub 完整範例程式碼

點選下方的 GitHub 連結，即可查看使用 Swift、SwiftUI 和 Objective-C 整合原生廣告的完整範例。

Swift 自訂顯示範例 SwiftUI 原生廣告範例 Objective-C 自訂顯示範例

GADMediaView

圖片和影片素材資源會透過 GADMediaView 向使用者顯示。這個 UIView 可以在 xib 檔案中定義，也可以動態建構，而且和其他素材資源檢視區塊一樣，應加入 GADNativeAdView 的檢視區塊階層。

和其他素材資源檢視區塊一樣，媒體檢視區塊需要填入內容才能正常顯示。您可以透過 GADMediaView 的 mediaContent 屬性設定內容，而 GADNativeAd 的 mediaContent 屬性則提供可傳遞至 GADMediaView 的媒體內容。

以下是自訂顯示範例 (Swift | Objective-C) 的程式碼片段，示範如何將 GADNativeAd 的 GADMediaContent 填入 GADMediaView，呈現原生廣告素材資源：

Swift

nativeAdView.mediaView?.mediaContent = nativeAd.mediaContentViewController.swift

Objective-C

nativeAdView.mediaView.mediaContent = nativeAd.mediaContent;ViewController.m

請確認在原生廣告檢視區塊的 Interface Builder 檔案中，您已將檢視區塊的自訂類別設為 GADMediaView，並連結至 mediaView outlet。

變更圖片內容模式

GADMediaView 類別在顯示圖片時，會遵循 UIView 的 contentMode 屬性設定。如想調整圖片在 GADMediaView 中的縮放方式，請在 GADMediaView 的 contentMode 屬性上設定對應的 UIViewContentMode。

例如，當廣告沒有影片時，顯示圖片並填滿 GADMediaView：

Swift

nativeAdView.mediaView?.contentMode = .scaleAspectFitNativeAdSnippets.swift

Objective-C

GADMediaView *mediaView = nativeAdView.mediaView;
if (mediaView) {
  mediaView.contentMode = UIViewContentModeScaleAspectFit;
}NativeAdSnippets.m

GADMediaContent

GADMediaContent 類別會保存與原生廣告媒體內容相關的資料，而這些資料會透過 GADMediaView 類別顯示。當這個類別設定至 GADMediaView 的 mediaContent 屬性時：

如果廣告包含影片素材資源，影片會先緩衝處理，然後在 GADMediaView 中播放。您可以檢查 hasVideoContent 來確定是否有影片素材資源。
如果廣告不含影片素材資源，系統會下載 mainImage 素材資源並顯示在 GADMediaView 中。

後續步驟

進一步瞭解使用者隱私。

原生進階 透過集合功能整理內容 你可以依據偏好儲存及分類內容。

顯示系統定義的原生廣告格式

GADNativeAdView

AdChoices 廣告標籤

程式輔助原生廣告的廣告標示

程式碼範例

設計 UIView 布局

將 outlet 連結至檢視區塊

顯示廣告

Swift

SwiftUI

建立檢視區塊模型

建立 UIViewRepresentable

將檢視區塊新增至檢視區塊階層

Objective-C

GitHub 完整範例程式碼

GADMediaView

Swift

Objective-C

變更圖片內容模式

Swift

Objective-C

GADMediaContent

後續步驟

原生進階