前提条件
- Google 移动广告 SDK 19.7.0 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，请确保使用的是测试广告，而不是实际投放的广告。否则，可能会导致您的账号被暂停。
对于 Android 激励广告，加载测试广告最简便的方法就是使用下面的测试专用广告单元 ID：
/21775744923/example/rewarded
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。只需确保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 ID 即可。
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。
加载激励广告对象
针对 RewardedAd 类调用静态 load() 方法并传入 RewardedAdLoadCallback 可加载激励广告。这通常是在 Activity 的 onCreate() 方法中完成的。请注意，与其他广告格式加载回调一样，RewardedAdLoadCallback 会利用 LoadAdError 提供较高保真度的错误详情。
Java
import com.google.android.gms.ads.rewarded.RewardedAd;
public class MainActivity extends Activity {
private RewardedAd rewardedAd;
private final String TAG = "MainActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
AdManagerAdRequest adRequest = new AdManagerAdRequest.Builder().build();
RewardedAd.load(this, "/21775744923/example/rewarded",
adRequest, new RewardedAdLoadCallback() {
@Override
public void onAdFailedToLoad(@NonNull LoadAdError loadAdError) {
// Handle the error.
Log.d(TAG, loadAdError.toString());
rewardedAd = null;
}
@Override
public void onAdLoaded(@NonNull RewardedAd ad) {
rewardedAd = ad;
Log.d(TAG, "Ad was loaded.");
}
});
}
}
Kotlin
class MainActivity : AppCompatActivity() {
private var rewardedAd: RewardedAd? = null
private final var TAG = "MainActivity"
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
var adRequest = AdManagerAdRequest.Builder().build()
RewardedAd.load(this,"/21775744923/example/rewarded", adRequest, object : RewardedAdLoadCallback() {
override fun onAdFailedToLoad(adError: LoadAdError) {
Log.d(TAG, adError?.toString())
rewardedAd = null
}
override fun onAdLoaded(ad: RewardedAd) {
Log.d(TAG, "Ad was loaded.")
rewardedAd = ad
}
})
}
}
设置 FullScreenContentCallback
FullScreenContentCallback 处理与展示 RewardedAd 相关的事件。在显示 RewardedAd 之前，请务必按如下方式设置回调：
Java
rewardedAd.setFullScreenContentCallback(new FullScreenContentCallback() {
@Override
public void onAdClicked() {
// Called when a click is recorded for an ad.
Log.d(TAG, "Ad was clicked.");
}
@Override
public void onAdDismissedFullScreenContent() {
// Called when ad is dismissed.
// Set the ad reference to null so you don't show the ad a second time.
Log.d(TAG, "Ad dismissed fullscreen content.");
rewardedAd = null;
}
@Override
public void onAdFailedToShowFullScreenContent(AdError adError) {
// Called when ad fails to show.
Log.e(TAG, "Ad failed to show fullscreen content.");
rewardedAd = null;
}
@Override
public void onAdImpression() {
// Called when an impression is recorded for an ad.
Log.d(TAG, "Ad recorded an impression.");
}
@Override
public void onAdShowedFullScreenContent() {
// Called when ad is shown.
Log.d(TAG, "Ad showed fullscreen content.");
}
});
Kotlin
rewardedAd?.fullScreenContentCallback = object: FullScreenContentCallback() {
override fun onAdClicked() {
// Called when a click is recorded for an ad.
Log.d(TAG, "Ad was clicked.")
}
override fun onAdDismissedFullScreenContent() {
// Called when ad is dismissed.
// Set the ad reference to null so you don't show the ad a second time.
Log.d(TAG, "Ad dismissed fullscreen content.")
rewardedAd = null
}
override fun onAdFailedToShowFullScreenContent(adError: AdError?) {
// Called when ad fails to show.
Log.e(TAG, "Ad failed to show fullscreen content.")
rewardedAd = null
}
override fun onAdImpression() {
// Called when an impression is recorded for an ad.
Log.d(TAG, "Ad recorded an impression.")
}
override fun onAdShowedFullScreenContent() {
// Called when ad is shown.
Log.d(TAG, "Ad showed fullscreen content.")
}
}
展示广告
展示激励广告时，您将使用 OnUserEarnedRewardListener 对象处理奖励事件。
Java
if (rewardedAd != null) {
Activity activityContext = MainActivity.this;
rewardedAd.show(activityContext, new OnUserEarnedRewardListener() {
@Override
public void onUserEarnedReward(@NonNull RewardItem rewardItem) {
// Handle the reward.
Log.d(TAG, "The user earned the reward.");
int rewardAmount = rewardItem.getAmount();
String rewardType = rewardItem.getType();
}
});
} else {
Log.d(TAG, "The rewarded ad wasn't ready yet.");
}
Kotlin
rewardedAd?.let { ad ->
ad.show(this, OnUserEarnedRewardListener { rewardItem ->
// Handle the reward.
val rewardAmount = rewardItem.amount
val rewardType = rewardItem.type
Log.d(TAG, "User earned the reward.")
})
} ?: run {
Log.d(TAG, "The rewarded ad wasn't ready yet.")
}
常见问题解答
- 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
OnInitializationCompleteListener。 - 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
OnInitializationCompleteListener回调中加载广告。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。您可以通过调用
MobileAds.getInitializationStatus()继续在整个应用会话中轮询所有适配器的初始化状态。- 如何找出特定中介广告联盟未准备就绪的原因？
AdapterStatus.getDescription()描述了适配器未准备好为广告请求提供服务的原因。- 系统是否始终会在调用
onAdDismissedFullScreenContent()回调之前调用onUserEarnedReward()回调？ 对于 Google Ads，所有
onUserEarnedReward()调用都发生在onAdDismissedFullScreenContent()之前。对于通过中介投放的广告，回调顺序取决于第三方广告联盟 SDK 的实现方式。对于为单次关闭回调提供奖励信息的广告联盟 SDK，中介适配器会在调用onAdDismissedFullScreenContent()之前调用onUserEarnedReward()。
GitHub 上的示例
后续步骤
不妨探索以下主题：