Rewarded interstitial is a type of incentivized ad format that lets you offer rewards for ads that appear automatically during natural app transitions. Unlike rewarded ads, users aren't required to opt in to view a rewarded interstitial.
Prerequisites
- Complete the Get started guide .
Always test with test ads
When building and testing your apps, make sure you use test ads rather than live, production ads. Failure to do so can lead to suspension of your account.
The easiest way to load test ads is to use our dedicated test ad unit ID for Android rewarded interstitial ads:
ca-app-pub-3940256099942544/5354046379
It's been specially configured to return test ads for every request, and you're free to use it in your own apps while coding, testing, and debugging. Just make sure you replace it with your own ad unit ID before publishing your app.
For details on GMA Next-Gen SDK test ads, see Enable test ads .
Load an ad
To load an ad, GMA Next-Gen SDK offers the following:
-
Load with the single ad loading API .
-
Load with the ad preloading API , which eliminates the need for manual ad loading and caching.
Load with the single ad loading API
The following example shows you how to load a single ad:
Kotlin
import
com.google.android.libraries.ads.mobile.sdk.common.AdLoadCallback
import
com.google.android.libraries.ads.mobile.sdk.common.AdRequest
import
com.google.android.libraries.ads.mobile.sdk.common.FullScreenContentError
import
com.google.android.libraries.ads.mobile.sdk.common.LoadAdError
import
com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAd
import
com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAdEventCallback
import
com.google.android.libraries.ads.mobile.sdk.MobileAds
class
RewardedInterstitialActivity
:
Activity
()
{
private
var
rewardedInterstitialAd
:
RewardedInterstitialAd?
=
null
override
fun
onCreate
(
savedInstanceState
:
Bundle?)
{
super
.
onCreate
(
savedInstanceState
)
// Load ads after you initialize GMA Next-Gen SDK
.
RewardedInterstitialAd
.
load
(
AdRequest
.
Builder
(
AD_UNIT_ID
).
build
(),
object
:
AdLoadCallback<RewardedInterstitialAd>
{
override
fun
onAdLoaded
(
ad
:
RewardedInterstitialAd
)
{
// Rewarded interstitial ad loaded.
rewardedInterstitialAd
=
ad
}
override
fun
onAdFailedToLoad
(
adError
:
LoadAdError
)
{
// Rewarded interstitial ad failed to load.
rewardedInterstitialAd
=
null
}
},
)
}
companion
object
{
// Sample rewarded interstitial ad unit ID.
const
val
AD_UNIT_ID
=
"ca-app-pub-3940256099942544/5354046379"
}
}
Java
import
com.google.android.libraries.ads.mobile.sdk.common.AdLoadCallback
;
import
com.google.android.libraries.ads.mobile.sdk.common.AdRequest
;
import
com.google.android.libraries.ads.mobile.sdk.common.FullScreenContentError
;
import
com.google.android.libraries.ads.mobile.sdk.common.LoadAdError
;
import
com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAd
;
import
com.google.android.libraries.ads.mobile.sdk.rewardedinterstitial.RewardedInterstitialAdEventCallback
;
import
com.google.android.libraries.ads.mobile.sdk.MobileAds
;
class
RewardedActivity
extends
Activity
{
// Sample rewarded interstitial ad unit ID.
private
static
final
String
AD_UNIT_ID
=
"ca-app-pub-3940256099942544/5354046379"
;
private
RewardedInterstitialAd
rewardedInterstitialAd
;
@Override
protected
void
onCreate
(
Bundle
savedInstanceState
)
{
super
.
onCreate
(
savedInstanceState
);
// Load ads after you initialize GMA Next-Gen SDK
.
RewardedInterstitialAd
.
load
(
new
AdRequest
.
Builder
(
AD_UNIT_ID
).
build
(),
new
AdLoadCallback<RewardedInterstitialAd>
()
{
@Override
public
void
onAdLoaded
(
@NonNull
RewardedInterstitialAd
rewardedInterstitialAd
)
{
// Rewarded interstitial ad loaded.
AdLoadCallback
.
super
.
onAdLoaded
(
rewardedInterstitialAd
);
RewardedActivity
.
this
.
rewardedInterstitialAd
=
rewardedInterstitialAd
;
}
@Override
public
void
onAdFailedToLoad
(
@NonNull
LoadAdError
adError
)
{
// Rewarded interstitial ad failed to load.
AdLoadCallback
.
super
.
onAdFailedToLoad
(
adError
);
rewardedInterstitialAd
=
null
;
}
}
);
}
}
Load with the ad preloading API
To start preloading, do the following:
-
Initialize a preload configuration with an ad request.
-
Start the preloader for rewarded interstitial ads with your ad unit ID and preload configuration:
Kotlin
private
fun
startPreloading
(
adUnitId
:
String
)
{
val
adRequest
=
AdRequest
.
Builder
(
adUnitId
).
build
()
val
preloadConfig
=
PreloadConfiguration
(
adRequest
)
RewardedInterstitialAdPreloader
.
start
(
adUnitId
,
preloadConfig
)
}
Java
private
void
startPreloading
(
String
adUnitId
)
{
AdRequest
adRequest
=
new
AdRequest
.
Builder
(
adUnitId
).
build
();
PreloadConfiguration
preloadConfig
=
new
PreloadConfiguration
(
adRequest
);
RewardedInterstitialAdPreloader
.
start
(
adUnitId
,
preloadConfig
);
}
When you're ready to show the ad, poll the ad from the preloader:
Kotlin
// Polling returns the next available ad and loads another ad in the background.
val
ad
=
RewardedInterstitialAdPreloader
.
pollAd
(
adUnitId
)
Java
// Polling returns the next available ad and loads another ad in the background.
final
RewardedInterstitialAd
ad
=
RewardedInterstitialAdPreloader
.
pollAd
(
adUnitId
);
Set the RewardedInterstitialAdEventCallback
The RewardedInterstitialAdEventCallback
handles events related to displaying
your RewardedInterstitialAd
. Before showing the rewarded interstitial ad, make
sure to set the callback:
Kotlin
// Listen for ad events.
rewardedInterstitialAd
?.
adEventCallback
=
object
:
RewardedInterstitialAdEventCallback
{
override
fun
onAdShowedFullScreenContent
()
{
// Rewarded interstitial ad did show.
}
override
fun
onAdDismissedFullScreenContent
()
{
// Rewarded interstitial ad did dismiss.
rewardedInterstitialAd
=
null
}
override
fun
onAdFailedToShowFullScreenContent
(
fullScreenContentError
:
FullScreenContentError
)
{
// Rewarded interstitial ad failed to show.
rewardedInterstitialAd
=
null
}
override
fun
onAdImpression
()
{
// Rewarded interstitial ad did record an impression.
}
override
fun
onAdClicked
()
{
// Rewarded interstitial ad did record a click.
}
}
Java
// Listen for ad events.
rewardedInterstitialAd
.
setAdEventCallback
(
new
RewardedInterstitialAdEventCallback
()
{
@Override
public
void
onAdShowedFullScreenContent
()
{
// Rewarded interstitial ad did show.
RewardedInterstitialAdEventCallback
.
super
.
onAdShowedFullScreenContent
();
}
@Override
public
void
onAdDismissedFullScreenContent
()
{
// Rewarded interstitial ad did dismiss.
RewardedInterstitialAdEventCallback
.
super
.
onAdDismissedFullScreenContent
();
rewardedInterstitialAd
=
null
;
}
@Override
public
void
onAdFailedToShowFullScreenContent
(
@NonNull
FullScreenContentError
fullScreenContentError
)
{
// Rewarded interstitial ad failed to show.
RewardedInterstitialAdEventCallback
.
super
.
onAdFailedToShowFullScreenContent
(
fullScreenContentError
);
rewardedInterstitialAd
=
null
;
}
@Override
public
void
onAdImpression
()
{
// Rewarded interstitial ad did record an impression.
RewardedInterstitialAdEventCallback
.
super
.
onAdImpression
();
}
@Override
public
void
onAdClicked
()
{
// Rewarded interstitial ad did record a click.
RewardedInterstitialAdEventCallback
.
super
.
onAdClicked
();
}
}
);
Show the ad
To show a rewarded interstitial ad, use the show()
method. Use an OnUserEarnedRewardListener
object to handle reward events.
Kotlin
// Show the ad.
rewardedInterstitialAd
?.
show
(
this
@RewardedActivity
,
object
:
OnUserEarnedRewardListener
{
override
fun
onUserEarnedReward
(
rewardItem
:
RewardItem
)
{
// User earned the reward.
val
rewardAmount
=
rewardItem
.
amount
val
rewardType
=
rewardItem
.
type
}
},
)
Java
// Show the ad.
rewardedInterstitialAd
.
show
(
RewardedActivity
.
this
,
new
OnUserEarnedRewardListener
()
{
@Override
public
void
onUserEarnedReward
(
@NonNull
RewardItem
rewardItem
)
{
// User earned the reward.
int
rewardAmount
=
rewardItem
.
getAmount
();
String
rewardType
=
rewardItem
.
getType
();
}
});
Example
Download and run the example app that demonstrates the use of the GMA Next-Gen SDK .
