Interstitial advertising

Interstitial advertising is a full-screen ad format embedded within the app content during natural pauses, such as transitioning between game levels or completing a target action.

When the app renders an interstitial ad, the user has two options: click the ad and proceed to the advertiser site or close the ad and go back to the app.

In interstitial ads, user attention is fully focused on the ads, which is why the impression cost is higher.

Appearance

This guide will show you how to integrate interstitial ads into a Compose Multiplatform app. In addition to code examples and instructions, this guide also contains format-specific recommendations and links to additional resources.

Prerequisite

  1. Follow the process in Quick start to integrate the Yandex Mobile Ads Compose Multiplatform Plugin.
  2. Make sure you're running the latest Yandex Mobile Ads Compose Multiplatform Plugin version. If you're using mediation, make sure you're running the latest version of the unified build.

Implementation

Key steps for integrating interstitial ads:

  • Obtain rememberInterstitialAdLoader() inside composable scope.
  • Load an InterstitialAd with loadAd(AdRequest) inside a coroutine (suspend).
  • Optionally set InterstitialAdEventListener on the loaded ad before show().
  • Call show() when your UI is ready (for example, after a user action).

Features of interstitial ads integration

If loading throws or reports a failure through your error handling, don't try to load a new ad again immediately. If there's no other option, limit the number of ad load retries. That will help avoid constant unsuccessful requests and connection issues when limitations arise.

Loading ads

Create the loader with rememberInterstitialAdLoader(), then call loadAd with an AdRequest that contains your adUnitId from the Yandex Advertising Network interface.

You can expand the request through AdRequest (targeting, parameters, preferredTheme, and so on). Delivering additional contextual data in the request can significantly improve your ad quality. Read more in the Ad Targeting section.

The following example shows how to load an interstitial ad:

@Composable
fun InterstitialBlock(adUnitId: String) {
    val loader = rememberInterstitialAdLoader()
    val scope = rememberCoroutineScope()
    var interstitialAd by remember { mutableStateOf<InterstitialAd?>(null) }
    var isLoading by remember { mutableStateOf(false) }

    Button(
        onClick = {
            isLoading = true
            scope.launch {
                try {
                    interstitialAd = loader.loadAd(AdRequest(adUnitId = adUnitId))
                } catch (e: Exception) {
                    // Ad failed to load with AdRequestError.
                    // Attempting to load a new ad from the onAdFailedToLoad() method is strongly discouraged.
                }
                isLoading = false
            }
        },
        enabled = !isLoading,
    ) {
        Text(if (isLoading) "Loading..." else "Load interstitial")
    }

    Button(
        onClick = {
            interstitialAd?.show()
            interstitialAd = null
        },
        enabled = interstitialAd != null,
    ) {
        Text("Show interstitial")
    }
}

For debugging, you can use 'demo-interstitial-yandex' as adUnitId.

Ad rendering

Interstitial ads should be displayed during natural pauses in the app's operation. One good option is inserting interstitial ads between game levels or after a conversion (for example, when a file has been downloaded).

To track the interstitial ad lifecycle, set InterstitialAdEventListener on the InterstitialAd instance before calling show().

val ad = interstitialAd ?: return
ad.setAdEventListener(
    object : InterstitialAdEventListener {
        override fun onAdShown() {
            // Called when an ad is shown.
        }

        override fun onAdFailedToShow(adError: AdError) {
            // Called when an ad failed to show. Clear the reference and preload the next ad if needed.
        }

        override fun onAdDismissed() {
            // Called when ad is dismissed. Preload the next interstitial here if appropriate.
        }

        override fun onAdClicked() {
            // Called when a click is recorded for an ad.
        }

        override fun onAdImpression(impressionData: ImpressionData?) {
            // Called when an impression is recorded for an ad.
        }
    },
)
ad.show()

Releasing resources

After onAdDismissed or onAdFailedToShow, drop references to the ad object and, if needed, start loading the next creative. Do not keep strong references to ads that have already been shown.

Testing interstitial ad integration

Using demo ad units for ad testing

We recommend using test ads to test your interstitial ad integration and your app itself.

For guaranteed return of test ads for every ad request, we have created a special demo ad placement ID. Use it to check your ad integration.

Demo adUnitId: demo-interstitial-yandex.

Warning

Make sure that before placing the application in the store, you replaced the demo ad placement ID with a real one, obtained in the Yandex Advertising Network interface.

You can find the list of available demo ad placement IDs in the Demo ad units for testing section.

Testing ad integration

You can check your interstitial ad integration using the SDK's built-in analyzer.

The tool makes sure your interstitial ads are integrated properly and outputs a detailed report to the log. To view the report, search for the “YandexAds” keyword in the Logcat tool used for Android application debugging.

adb logcat -v brief '*:S YandexAds'

If the integration is successful, you will see the following message:

adb logcat -v brief '*:S YandexAds'
mobileads$ adb logcat -v brief '*:S YandexAds'
I/YandexAds(13719): [Integration] Ad type interstitital was integrated successfully

If you're having problems integrating interstitial ads, you'll get a detailed report on the issues and recommendations for how to fix them.

Using demo ad units for ad testing

We recommend using test ads to test your ad integration and your app itself.

To guarantee that test ads are returned for every ad request, we created a special demo ad placement ID. Use it to check your ad integration.

Demo adUnitId: demo-interstitial-yandex.

Warning

Make sure that before placing the application in the store, you replaced the demo ad placement ID with a real one, obtained in the Yandex Advertising Network interface.

You can find the list of available demo ad placement IDs in the Demo ad units for testing section.

Testing ad integration

You can test your ad integration using the native Console tool.

To view detailed logs, call the YMAMobileAds class's enableLogging method.

YMAMobileAds.enableLogging()

To view SDK logs, go to the Console tool and set Subsystem = com.mobile.ads.ads.sdk. You can also filter logs by category and error level.

If you're having problems integrating ads, you'll get a detailed report on the issues and recommendations for how to fix them.

Tips

Ad preloading

Loading an ad may take several seconds, depending on the number of ad networks connected in mobile mediation and the user's internet speed. We recommend preloading ads before displaying them.

Call loadAd in advance to display the loaded ad at the right moment.

To start loading the next ad right after serving the current one, bind this process to the onAdDismissed event.

If you cache ads on too many screens that are unlikely to be shown, your ad effectiveness could drop. For example, if users complete 2-3 game levels per session, you shouldn't cache ads for 6-7 screens. Your ad viewability could decrease otherwise, and the advertising system might deprioritize your app.

To make sure you're finding a good balance for your app, track the "Share of impressions" or "Share of visible impressions" metric in the Yandex Advertising Network interface. If it's under 20%, you should probably revise your caching algorithm. The higher the percentage of impressions, the better.

Additional resources

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Rewarded ads