先備知識
- Google Mobile Ads SDK 19.7.0 以上版本。
- 完成入門指南。
一律使用測試廣告進行測試
建構及測試應用程式時,請務必使用測試廣告,而非即時的實際廣告。否則可能導致帳戶遭到停權。
要載入測試廣告,最簡單的方法是使用 Android 獎勵廣告的專屬測試廣告單元 ID:
ca-app-pub-3940256099942544/5224354917
這項機制經過特別設定,可針對每個請求傳回測試廣告,您可以在編寫程式碼、進行測試及偵錯時,自由用於自家的應用程式。但別忘了在發布應用程式前,用自己的廣告單元 ID 取代這個 ID。
如要進一步瞭解 Mobile Ads SDK 測試廣告的運作方式,請參閱「測試廣告」一文。
載入獎勵廣告物件
如要載入獎勵廣告,請在 RewardedAd
類別上呼叫靜態 load()
方法,並傳入 RewardedAdLoadCallback
。這通常在 Activity
的 onCreate()
方法中執行。請注意,如同其他格式載入回呼,RewardedAdLoadCallback
會使用 LoadAdError
提供更精確的錯誤詳細資料。
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) {
AdRequest adRequest = new AdRequest.Builder().build();
RewardedAd.load(this, "ca-app-pub-3940256099942544/5224354917",
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 = AdRequest.Builder().build()
RewardedAd.load(this,"ca-app-pub-3940256099942544/5224354917", 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
}
})
}
}
設定 FullScreenContentCallback
FullScreenContentCallback
會處理與顯示 RewardedAd
相關的事件。顯示 RewardedAd
之前,請務必將回呼設為像這樣:
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.")
}
}
放送廣告
顯示獎勵廣告時,您將使用 OnUserEarnedRewardListener
物件處理獎勵事件。
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.")
}
[選用] 驗證伺服器端驗證 (SSV) 回呼
如果應用程式需要在伺服器端驗證回呼中使用額外資料,則應使用獎勵廣告的自訂資料功能。在獎勵廣告物件上設定的任何字串值都會傳遞至 SSV 回呼的 custom_data
查詢參數。如果未設定自訂資料值,custom_data
查詢參數便不會出現在 SSV 回呼中。
以下程式碼範例示範如何在要求廣告前,設定獎勵廣告物件的自訂資料。
Java
RewardedAd.load(MainActivity.this, "ca-app-pub-3940256099942544/5354046379",
new AdRequest.Builder().build(), new RewardedAdLoadCallback() {
@Override
public void onAdLoaded(RewardedAd ad) {
Log.d(TAG, "Ad was loaded.");
rewardedAd = ad;
ServerSideVerificationOptions options = new ServerSideVerificationOptions
.Builder()
.setCustomData("SAMPLE_CUSTOM_DATA_STRING")
.build();
rewardedAd.setServerSideVerificationOptions(options);
}
@Override
public void onAdFailedToLoad(LoadAdError loadAdError) {
Log.d(TAG, loadAdError.toString());
rewardedAd = null;
}
});
Kotlin
RewardedAd.load(this, "ca-app-pub-3940256099942544/5354046379",
AdRequest.Builder().build(), object : RewardedAdLoadCallback() {
override fun onAdLoaded(ad: RewardedAd) {
Log.d(TAG, "Ad was loaded.")
rewardedInterstitialAd = ad
val options = ServerSideVerificationOptions.Builder()
.setCustomData("SAMPLE_CUSTOM_DATA_STRING")
.build()
rewardedAd.setServerSideVerificationOptions(options)
}
override fun onAdFailedToLoad(adError: LoadAdError) {
Log.d(TAG, adError?.toString())
rewardedAd = null
}
})
如要設定自訂獎勵字串,則必須在顯示廣告之前完成。
常見問題
- 初始化呼叫是否有逾時?
- 10 秒後,即使中介服務聯播網尚未完成初始化,Google Mobile Ads SDK 仍會叫用
OnInitializationCompleteListener
。 - 如果我收到初始化回呼時,有些中介服務聯播網還沒準備就緒,該怎麼辦?
建議您在
OnInitializationCompleteListener
的回呼中載入廣告。即使中介服務聯播網尚未準備就緒,Google Mobile Ads SDK 仍會要求該聯播網提供廣告。因此,如果中介服務聯播網在逾時後完成初始化作業,仍可在該工作階段為日後的廣告請求提供服務。您可以呼叫
MobileAds.getInitializationStatus()
,繼續在應用程式工作階段中,輪詢所有轉接程式的初始化狀態。- 如何找出特定中介服務聯播網尚未準備就緒的原因?
AdapterStatus.getDescription()
說明轉接程式為何還不能處理廣告請求。- 是否一律會在
onAdDismissedFullScreenContent()
回呼之前呼叫onUserEarnedReward()
回呼? Google Ads 的所有
onUserEarnedReward()
呼叫都會在onAdDismissedFullScreenContent()
之前發生。對於透過中介服務放送的廣告,回呼順序取決於第三方廣告聯播網 SDK 的實作方式。如果廣告聯播網 SDK 提供包含獎勵資訊的單一關閉回呼,中介服務轉接程式會在onAdDismissedFullScreenContent()
之前叫用onUserEarnedReward()
。
GitHub 上的範例
後續步驟
探索下列主題: