插屏广告

@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) "加载中..." else "加载插屏")
    }

    Button(
        onClick = {
            interstitialAd?.show()
            interstitialAd = null
        },
        enabled = interstitialAd != null,
    ) {
        Text("展示插屏")
    }
}

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()