Question

我正在Unity中开发一款安卓游戏。我在我的项目中集成了Google Admob SDK，并成功通过引用https://developers.google.com/admob/unity/rewarded-video在我的android apk中显示Google admob奖励视频广告。

然而，当重新加载场景以重启游戏时多次调用回调函数。

回调函数示例：

// Called when an ad request has successfully loaded.
rewardBasedVideo.OnAdLoaded += HandleRewardBasedVideoLoaded;
// Called when an ad request failed to load.
rewardBasedVideo.OnAdFailedToLoad += HandleRewardBasedVideoFailedToLoad;
// Called when an ad is shown.
rewardBasedVideo.OnAdOpening += HandleRewardBasedVideoOpened;
// Called when the ad starts to play.
rewardBasedVideo.OnAdStarted += HandleRewardBasedVideoStarted;
// Called when the user should be rewarded for watching a video.
rewardBasedVideo.OnAdRewarded += HandleRewardBasedVideoRewarded;

第一次加载场景：回调函数被调用1次。

再次加载场景：回调函数被调用2次。

再次加载场景：回调函数被调用3次。

...

我认为根本原因是即使重新加载Unity场景也会累积回调函数。

如何在不改变场景的情况下只调用一次这样的回调函数？

Answer 1

所以我终于找到了使广告正常运行的解决方案

首先安装Google所示的google ad SDK

Follow the Google's admonb unity integration tutotrial here

然后对横幅广告，插页式广告和奖励视频广告使用以下脚本

SaveManager及其相关文件是我的函数中使用的一些脚本

忽略它们

您必须在更新功能中更新和调用广告，并使用bool检查是否调用了事件处理程序。

请参见插页式广告和奖励广告的onAdFailedToLoad事件处理程序

using System;
using UnityEngine;
using UnityEngine.UI;
using GoogleMobileAds.Api;

// Example script showing how to invoke the Google Mobile Ads Unity plugin.

public class adMob : MonoBehaviour
{
private BannerView bannerView;
private InterstitialAd interstitial;
private RewardedAd rewardedAd;
private float deltaTime = 0.0f;
private static string outputMessage = string.Empty;

public Text coinValueHolder;
int rewardAmount;

private bool reqInterstitial = true;
private bool reqRewardedAdVideo = true;

public static adMob ins;

public static string OutputMessage
{
    set { outputMessage = value; }
}

public void Start()
{

    #if UNITY_ANDROID
    string appId = "ca-app-pub-3940256099942544~3347511713";
    #elif UNITY_IPHONE
    string appId = "ca-app-pub-3940256099942544~1458002511";
    #else
    string appId = "unexpected_platform";
    #endif

    MobileAds.SetiOSAppPauseOnBackground(true);

    // Initialize the Google Mobile Ads SDK.
    MobileAds.Initialize(appId);

    this.CreateAndLoadRewardedAd();
}

public void Awake()
{
    if (ins == null)
    {
        ins = this;
        DontDestroyOnLoad(gameObject);
    }
    else if (ins != null)
    {
        Destroy(gameObject);
    }
}

public void Update()
{
    // Calculate simple moving average for time to render screen. 0.1 factor used as 
    smoothing
    // value.
    this.deltaTime += (Time.deltaTime - this.deltaTime) * 0.1f;

    if (rewardAmount > 0)
    {
        coinValueHolder = 
        GameObject.FindGameObjectWithTag("coinText").GetComponent<Text>();

        SaveManager.coins += 100;
        SaveManager.ins.SaveDataFromDataObjects();
        coinValueHolder.text = SaveManager.coins.ToString();
        rewardAmount = 0;
    }

    if(reqInterstitial)
    {
        this.RequestInterstitial();
        reqInterstitial = false;
    }

    if(reqRewardedAdVideo)
    {
        this.CreateAndLoadRewardedAd();
        reqRewardedAdVideo = false;
    }
}

// Returns an ad request with custom ad targeting.
public AdRequest CreateAdRequest()
{
    return new AdRequest.Builder().Build();
}

public void RequestBanner()
{
    // These ad units are configured to always serve test ads.
    #if UNITY_EDITOR
    string adUnitId = "unused";
    #elif UNITY_ANDROID
    string adUnitId = "ca-app-pub-3940256099942544/6300978111";
    #elif UNITY_IPHONE
    string adUnitId = "ca-app-pub-3940256099942544/2934735716";
    #else
    string adUnitId = "unexpected_platform";
    #endif

    // Clean up banner ad before creating a new one.
    if (this.bannerView != null)
    {
        this.bannerView.Destroy();
    }

    // Create a 320x50 banner at the top of the screen.
    this.bannerView = new BannerView(adUnitId, AdSize.Banner, AdPosition.Bottom);

    // Register for ad events.
    this.bannerView.OnAdLoaded += this.HandleAdLoaded;
    this.bannerView.OnAdFailedToLoad += this.HandleAdFailedToLoad;
    this.bannerView.OnAdOpening += this.HandleAdOpened;
    this.bannerView.OnAdClosed += this.HandleAdClosed;
    this.bannerView.OnAdLeavingApplication += this.HandleAdLeftApplication;

    // Load a banner ad.
    this.bannerView.LoadAd(this.CreateAdRequest());
}

public void DestroyBanner()
{
    this.bannerView.Destroy();
}

public void RequestInterstitial()
{
    // These ad units are configured to always serve test ads.
    #if UNITY_EDITOR
    string adUnitId = "unused";
    #elif UNITY_ANDROID
    string adUnitId = "ca-app-pub-3940256099942544/1033173712";
    #elif UNITY_IPHONE
    string adUnitId = "ca-app-pub-3940256099942544/4411468910";
    #else
    string adUnitId = "unexpected_platform";
    #endif

    // Clean up interstitial ad before creating a new one.
    if (this.interstitial != null)
    {
        this.interstitial.Destroy();
    }

    // Create an interstitial.
    this.interstitial = new InterstitialAd(adUnitId);

    // Register for ad events.
    this.interstitial.OnAdLoaded += this.HandleInterstitialLoaded;
    this.interstitial.OnAdFailedToLoad += this.HandleInterstitialFailedToLoad;
    this.interstitial.OnAdOpening += this.HandleInterstitialOpened;
    this.interstitial.OnAdClosed += this.HandleInterstitialClosed;
    this.interstitial.OnAdLeavingApplication += 
    this.HandleInterstitialLeftApplication;

    // Load an interstitial ad.
    this.interstitial.LoadAd(this.CreateAdRequest());
}

public void CreateAndLoadRewardedAd()
{
    #if UNITY_EDITOR
    string adUnitId = "unused";
    #elif UNITY_ANDROID
    string adUnitId = "ca-app-pub-3940256099942544/5224354917";
    #elif UNITY_IPHONE
    string adUnitId = "ca-app-pub-3940256099942544/1712485313";
    #else
    string adUnitId = "unexpected_platform";
    #endif
    // Create new rewarded ad instance.
    this.rewardedAd = new RewardedAd(adUnitId);

    // Called when an ad request has successfully loaded.
    this.rewardedAd.OnAdLoaded += HandleRewardedAdLoaded;
    // Called when an ad request failed to load.
    this.rewardedAd.OnAdFailedToLoad += HandleRewardedAdFailedToLoad;
    // Called when an ad is shown.
    this.rewardedAd.OnAdOpening += HandleRewardedAdOpening;
    // Called when an ad request failed to show.
    this.rewardedAd.OnAdFailedToShow += HandleRewardedAdFailedToShow;
    // Called when the user should be rewarded for interacting with the ad.
    this.rewardedAd.OnUserEarnedReward += HandleUserEarnedReward;
    // Called when the ad is closed.
    this.rewardedAd.OnAdClosed += HandleRewardedAdClosed;

    // Create an empty ad request.
    AdRequest request = this.CreateAdRequest();
    // Load the rewarded ad with the request.
    this.rewardedAd.LoadAd(request);
}

public void ShowInterstitial()
{
    if (this.interstitial.IsLoaded())
    {
        this.interstitial.Show();
    }
    else
    {
        MonoBehaviour.print("Interstitial is not ready yet");
    }
}

public void ShowRewardedAd()
{
    if (this.rewardedAd.IsLoaded())
    {
        this.rewardedAd.Show();
    }
    else
    {
        MonoBehaviour.print("Rewarded ad is not ready yet");
    }
}

#region Banner callback handlers

public void HandleAdLoaded(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleAdLoaded event received");
}

public void HandleAdFailedToLoad(object sender, AdFailedToLoadEventArgs args)
{
    MonoBehaviour.print("HandleFailedToReceiveAd event received with message: " + 
    args.Message);
}

public void HandleAdOpened(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleAdOpened event received");
}

public void HandleAdClosed(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleAdClosed event received");
}

public void HandleAdLeftApplication(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleAdLeftApplication event received");
}

#endregion

#region Interstitial callback handlers

public void HandleInterstitialLoaded(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleInterstitialLoaded event received");
}

public void HandleInterstitialFailedToLoad(object sender, AdFailedToLoadEventArgs args)
{
    MonoBehaviour.print(
        "HandleInterstitialFailedToLoad event received with message: " + args.Message);
    this.reqInterstitial = true;
}

public void HandleInterstitialOpened(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleInterstitialOpened event received");
}

public void HandleInterstitialClosed(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleInterstitialClosed event received");
    this.reqInterstitial = true;
}

public void HandleInterstitialLeftApplication(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleInterstitialLeftApplication event received");
}

#endregion

#region RewardedAd callback handlers

public void HandleRewardedAdLoaded(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleRewardedAdLoaded event received");
}

public void HandleRewardedAdFailedToLoad(object sender, AdErrorEventArgs args)
{
    MonoBehaviour.print(
        "HandleRewardedAdFailedToLoad event received with message: " + args.Message);
    this.reqRewardedAdVideo = true;
}

public void HandleRewardedAdOpening(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleRewardedAdOpening event received");
}

public void HandleRewardedAdFailedToShow(object sender, AdErrorEventArgs args)
{
    MonoBehaviour.print(
        "HandleRewardedAdFailedToShow event received with message: " + args.Message);
}

public void HandleRewardedAdClosed(object sender, EventArgs args)
{
    MonoBehaviour.print("HandleRewardedAdClosed event received");
    this.reqRewardedAdVideo = true;
}

public void HandleUserEarnedReward(object sender, Reward args)
{
    string type = args.Type;
    double amount = args.Amount;
    rewardAmount = (int)amount;

    MonoBehaviour.print(
        "HandleRewardedAdRewarded event received for "
                    + amount.ToString() + " " + type);
}

#endregion

}

将上面的脚本放在Hierachy中的GameObject上

要调用广告，请使用

adMob.ins.DestroyBanner();

或任何其他功能

adMob.ins._Your-Function-Name__();

Answer 2

使用后，您需要从事件中取消订阅句柄

    // Called when an ad request has successfully loaded.
    rewardBasedVideo.OnAdLoaded -= HandleRewardBasedVideoLoaded;
    // Called when an ad request failed to load.
    rewardBasedVideo.OnAdFailedToLoad -= HandleRewardBasedVideoFailedToLoad;
    // Called when an ad is shown.
    rewardBasedVideo.OnAdOpening -= HandleRewardBasedVideoOpened;
    // Called when the ad starts to play.
    rewardBasedVideo.OnAdStarted -= HandleRewardBasedVideoStarted;
    // Called when the user should be rewarded for watching a video.
    rewardBasedVideo.OnAdRewarded -= HandleRewardBasedVideoRewarded;

例如，使用OnDestroy方法进行操作。

重新加载Unity

2 个答案: