激励广告

所谓激励广告,指的是用户可以选择与之互动的一种广告, 了解应用内奖励。本指南 展示如何植入 AdMob 激励广告 植入到 iOS 应用中。 阅读一些客户成功案例: 案例研究 1案例研究 2

前提条件

  • Google 移动广告 SDK 8.0.0 或更高版本。
  • 完成入门指南

始终使用测试广告进行测试

在构建和测试应用时,请务必使用测试广告 实际投放的广告。否则,可能会导致您的账号被暂停。

加载测试广告最简便的方法就是使用 iOS 专用的测试广告单元 ID 激励广告:

ca-app-pub-3940256099942544/1712485313

该测试广告单元 ID 已经过专门配置,可确保每个请求返回的都是测试广告。您可以在自己应用的编码、测试和调试过程中随意使用该测试广告单元 ID。只需制作 请务必在发布应用前用您自己的广告单元 ID 替换该测试广告单元。

如需详细了解移动广告 SDK 的测试广告如何运作,请参阅测试 广告

实现

植入激励广告的主要步骤如下所示:

  • 加载广告
  • [可选] 验证 SSV 回调
  • 注册回调
  • 展示广告并处理奖励事件

加载广告

广告的加载是使用 load(adUnitID:request) 完成的。 (针对 GADRewardedAd 类)。

Swift

import GoogleMobileAds
import UIKit

class ViewController: UIViewController {

  private var rewardedAd: GADRewardedAd?

  func loadRewardedAd() async {
    do {
      rewardedAd = try await GADRewardedAd.load(
        withAdUnitID: "ca-app-pub-3940256099942544/1712485313", request: GADRequest())
    } catch {
      print("Rewarded ad failed to load with error: \(error.localizedDescription)")
    }
  }
}

SwiftUI

import GoogleMobileAds

class RewardedViewModel: NSObject, ObservableObject, GADFullScreenContentDelegate {
  @Published var coins = 0
  private var rewardedAd: GADRewardedAd?

  func loadAd() async {
    do {
      rewardedAd = try await GADRewardedAd.load(
        withAdUnitID: "ca-app-pub-3940256099942544/1712485313", request: GADRequest())
      rewardedAd?.fullScreenContentDelegate = self
    } catch {
      print("Failed to load rewarded ad with error: \(error.localizedDescription)")
    }
  }

Objective-C

@import GoogleMobileAds;
@import UIKit;

@interface ViewController ()

@property(nonatomic, strong) GADRewardedAd *rewardedAd;

@end

@implementation ViewController
- (void)loadRewardedAd {
  GADRequest *request = [GADRequest request];
  [GADRewardedAd
      loadWithAdUnitID:@"ca-app-pub-3940256099942544/1712485313"
                request:request
      completionHandler:^(GADRewardedAd *ad, NSError *error) {
        if (error) {
          NSLog(@"Rewarded ad failed to load with error: %@", [error localizedDescription]);
          return;
        }
        self.rewardedAd = ad;
        NSLog(@"Rewarded ad loaded.");
      }];
}

[可选] 验证服务器端验证 (SSV) 回调

需要在服务器端获取额外数据的应用 验证回调应使用 自定义数据功能。在激励广告上设置的任何字符串值 对象会传递给 SSV 回调的 custom_data 查询参数。如果未设置自定义数据值,custom_data 查询参数值不会出现在 SSV 回调中。

以下代码示例演示了如何为激励广告设置自定义数据 对象。

Swift

do {
  rewardedAd = try await GADRewardedAd.load(
    withAdUnitID: "ca-app-pub-3940256099942544/1712485313", request: GADRequest())
  let options = GADServerSideVerificationOptions()
  options.customRewardString = "SAMPLE_CUSTOM_DATA_STRING"
  rewardedAd.serverSideVerificationOptions = options
} catch {
  print("Rewarded ad failed to load with error: \(error.localizedDescription)")
}

Objective-C

[GADRewardedAd
     loadWithAdUnitID:@"ca-app-pub-3940256099942544/1712485313"
              request:[GADRequest request];
    completionHandler:^(GADRewardedAd *ad, NSError *error) {
      if (error) {
        // Handle Error
        return;
      }
      self.rewardedAd = ad;
      GADServerSideVerificationOptions *options =
          [[GADServerSideVerificationOptions alloc] init];
      options.customRewardString = @"SAMPLE_CUSTOM_DATA_STRING";
      ad.serverSideVerificationOptions = options;
    }];

注册回调

如需接收有关展示事件的通知,您必须实现 GADFullScreenContentDelegate 协议并将其分配给已返回广告的 fullScreenContentDelegate 属性。GADFullScreenContentDelegate 协议会在广告成功展示或展示失败,以及用户关闭广告时处理回调。以下 代码展示了如何实施协议并将其分配给广告:

Swift

import GoogleMobileAds
import UIKit

class ViewController: UIViewController, GADFullScreenContentDelegate {

  private var rewardedAd: GADRewardedAd?

  func loadRewardedAd() async {
    do {
      rewardedAd = try await GADRewardedAd.load(
        withAdUnitID: "ca-app-pub-3940256099942544/1712485313", request: GADRequest())
      rewardedAd?.fullScreenContentDelegate = self
    } catch {
      print("Rewarded ad failed to load with error: \(error.localizedDescription)")
    }
  }

  /// Tells the delegate that the ad failed to present full screen content.
  func ad(_ ad: GADFullScreenPresentingAd, didFailToPresentFullScreenContentWithError error: Error) {
    print("Ad did fail to present full screen content.")
  }

  /// Tells the delegate that the ad will present full screen content.
  func adWillPresentFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    print("Ad will present full screen content.")
  }

  /// Tells the delegate that the ad dismissed full screen content.
  func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
    print("Ad did dismiss full screen content.")
  }
}

SwiftUI

fullScreenContentDelegate 属性分配给返回的广告:

rewardedAd?.fullScreenContentDelegate = self

实现协议:

func adDidRecordImpression(_ ad: GADFullScreenPresentingAd) {
  print("\(#function) called")
}

func adDidRecordClick(_ ad: GADFullScreenPresentingAd) {
  print("\(#function) called")
}

func ad(
  _ ad: GADFullScreenPresentingAd,
  didFailToPresentFullScreenContentWithError error: Error
) {
  print("\(#function) called")
}

func adWillPresentFullScreenContent(_ ad: GADFullScreenPresentingAd) {
  print("\(#function) called")
}

func adWillDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
  print("\(#function) called")
}

func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
  print("\(#function) called")
  // Clear the rewarded ad.
  rewardedAd = nil
}

Objective-C

@interface ViewController () <GADFullScreenContentDelegate>

@property(nonatomic, strong) GADRewardedAd *rewardedAd;

@end

@implementation ViewController
- (void)loadRewardedAd {
  GADRequest *request = [GADRequest request];
  [GADRewardedAd
      loadWithAdUnitID:@"ca-app-pub-3940256099942544/4806952744"
                request:request
      completionHandler:^(GADRewardedAd *ad, NSError *error) {
        if (error) {
          NSLog(@"Rewarded ad failed to load with error: %@", [error localizedDescription]);
          return;
        }
        self.rewardedAd = ad;
        NSLog(@"Rewarded ad loaded.");
        self.rewardedAd.fullScreenContentDelegate = self;
      }];
}

/// Tells the delegate that the ad failed to present full screen content.
- (void)ad:(nonnull id<GADFullScreenPresentingAd>)ad
    didFailToPresentFullScreenContentWithError:(nonnull NSError *)error {
    NSLog(@"Ad did fail to present full screen content.");
}

/// Tells the delegate that the ad will present full screen content.
- (void)adWillPresentFullScreenContent:(nonnull id<GADFullScreenPresentingAd>)ad {
    NSLog(@"Ad will present full screen content.");
}

/// Tells the delegate that the ad dismissed full screen content.
- (void)adDidDismissFullScreenContent:(nonnull id<GADFullScreenPresentingAd>)ad {
    NSLog(@"Ad did dismiss full screen content.");
}

GADRewardedAd 是一次性对象。也就是说, 因此不能再显示。最佳做法是在 GADFullScreenContentDelegate 上的 adDidDismissFullScreenContent: 方法中加载另一个激励广告,以便在上一个激励广告关闭后,立即开始加载下一个激励广告。

展示广告并处理奖励事件

在向用户展示激励广告之前,您必须向用户展示 用户明确选择观看激励广告内容来换取奖励。激励广告 广告必须始终是一项可由用户自行选择的体验。

展示广告时,您必须提供 GADUserDidEarnRewardHandler 对象,用于处理用户奖励。

以下代码演示了展示激励广告的最佳方法。

Swift

func show() {
  guard let rewardedAd = rewardedAd else {
    return print("Ad wasn't ready.")
  }

  // The UIViewController parameter is an optional.
  ad.present(fromRootViewController: nil) {
    let reward = ad.adReward
    print("Reward received with currency \(reward.amount), amount \(reward.amount.doubleValue)")
    // TODO: Reward the user.
  }
}

SwiftUI

监听视图中的界面事件,以确定何时展示广告。

var body: some View {
  VStack(spacing: 20) {
      Button("Watch video for additional 10 coins") {
        viewModel.showAd()
        showWatchVideoButton = false
      }

通过观看模型展示激励广告:

func showAd() {
  guard let rewardedAd = rewardedAd else {
    return print("Ad wasn't ready.")
  }

  rewardedAd.present(fromRootViewController: nil) {
    let reward = rewardedAd.adReward
    print("Reward amount: \(reward.amount)")
    self.addCoins(reward.amount.intValue)
  }
}

Objective-C

- (void)show {
  if (self.rewardedAd) {
    // The UIViewController parameter is nullable.
    [self.rewardedAd presentFromRootViewController:nil
                                  userDidEarnRewardHandler:^{
                                  GADAdReward *reward =
                                      self.rewardedAd.adReward;
                                  // TODO: Reward the user!
                                }];
  } else {
    NSLog(@"Ad wasn't ready");
  }
}

常见问题解答

我可以获取GADRewardedAd的奖励详情吗?
是,如果您需要在 userDidEarnReward 回调之前获得奖励金额 被触发后,GADRewardedAdadReward 属性,从而在广告加载后验证奖励金额。
初始化调用是否会超时?
10 秒后,即使中介广告联盟仍未完成初始化,Google 移动广告 SDK 还是会调用提供给 startWithCompletionHandler: 方法的 GADInitializationCompletionHandler
在获得初始化回调时,如果某些中介广告联盟尚未就绪,该怎么办?

我们建议您在 GADInitializationCompletionHandler 中加载广告。即使中介广告联盟尚未就绪 Google 移动广告 SDK 仍会向该广告联盟请求投放广告。因此,如果中介广告联盟在超时后完成初始化,它仍然可以在该会话中为将来的广告请求提供服务。

您可以继续在整个过程中轮询所有适配器的初始化状态 您的应用会话中。GADMobileAds.initializationStatus

如何找出特定中介广告联盟未准备就绪的原因?

GADAdapterStatus 对象的 description 属性描述了 未准备好为广告请求提供服务。

系统是否始终在调用 adDidDismissFullScreenContent: 委托方法之前调用 userDidEarnRewardHandler 完成处理程序?

对于 Google Ads,所有 userDidEarnRewardHandler 调用都会发生 adDidDismissFullScreenContent:之前。对于通过中介投放的广告,由第三方广告联盟 SDK 的实现情况决定回调顺序。对于 提供一个包含奖励信息的单个委托方法,即中介适配器 在 adDidDismissFullScreenContent: 之前调用 userDidEarnRewardHandler

GitHub 上的示例

以您的首选语言查看完整激励广告示例:

后续步骤

详细了解用户隐私