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unity&ios.jpeg
如何在Unity中使用iOS端原生代码请求Admob广告。
先来说一下,这个需求的原因是,因为Admob unity的官方文档更新实在太慢了,我们用unity的admob库确实很简单就能请求实现广告了,但是版本目前还停留在6.6.0,而iOS的最新文档已经是6.9.0版本了,所以我们考虑调用ios端的请求展示代码请求广告,以便于更好的展示广告,分析广告数据等。
首先Unity调用iOS代码
/// <summary> /// ios原生代码请求AdmobReward /// </summary> [DllImport("__Internal")] public static extern void LoadAdmobFromIOS(string adid); /// <summary> /// ios原生代码请求AdmobRewardInter /// </summary> [DllImport("__Internal")] public static extern void LoadAdmobInterFromIOS(string adid); /// <summary> /// ios原生代码展示Admob /// </summary> [DllImport("__Internal")] public static extern void ShowAdmobFromIOS(string adid); /// <summary> /// ios原生代码展示Admob Reward Inter /// </summary> [DllImport("__Internal")] public static extern void ShowAdmobInterFromIOS(string adid);
这里我定义的方法分别是:请求Admob激励视频,请求Admob插屏激励视频,展示激励视频,展示插屏激励视频。
在 xcode写入oc++代码
//Admob在IOS中请求广告逻辑extern "C" { UnityAppController* uac = [[UnityAppController alloc] init]; void LoadAdmobFromIOS(const char* value) { NSString *adid = [NSString stringWithUTF8String:value]; [uac loadRewardedAd: adid]; } void LoadAdmobInterFromIOS(const char* value) { NSString *adid = [NSString stringWithUTF8String:value]; [uac loadRewardedInter: adid]; } void ShowAdmobFromIOS(const char* value) { NSString *adid = [NSString stringWithUTF8String:value]; GADRewardedAd *rewardedAd = rewardDict[adid]; if (rewardedAd) { UIViewController *uvc = visibleViewController(); [rewardedAd presentFromRootViewController:uvc userDidEarnRewardHandler:^{ //GADAdReward * reward = rewardedAd.adReward; UnitySendMessage("IOSCube","ShowAdmobIOSFinish", [adid UTF8String]); }]; UnitySendMessage("IOSCube","ShowAdmobFromIOS", [adid UTF8String]); } else { NSLog(@"Linnea IOS AD 没有准备好:%@", adid); } } void ShowAdmobInterFromIOS(const char* value) { NSString *adid = [NSString stringWithUTF8String:value]; GADRewardedInterstitialAd *rewardedInterstitialAd = rewardDict[adid]; if (rewardedInterstitialAd) { UIViewController *uvc = visibleViewController(); //GADAdReward *reward = rewardedInterstitialAd.adReward; [rewardedInterstitialAd presentFromRootViewController:uvc userDidEarnRewardHandler:^{ UnitySendMessage("IOSCube","ShowAdmobIOSFinish", [adid UTF8String]); }]; UnitySendMessage("IOSCube","ShowAdmobFromIOS", [adid UTF8String]); } else { NSLog(@"Linnea IOS AD 没有准备好:%@", adid); } }}
这里是请求和展示的方法,uvc会找不到,我后面会讲怎么获得这个uvc。首先看UnityAppController,因为我们需要用到广告中的事件回调,需要一个委托事件,但是在extern "C"中只是一个方法体,所以我们就必须把方法的请求写在拥有对象的UnityAppController类中,所以请求方法:
NSMutableDictionary *rewardDict = [NSMutableDictionary dictionary];- (void)loadRewardedAd:(NSString*) adid { GADRequest *request = [GADRequest request]; [GADRewardedAd loadWithAdUnitID:adid request:request completionHandler:^(GADRewardedAd *ad, NSError *error) { if (error) { UnitySendMessage("IOSCube","LoadAdmobIOSFail", [adid UTF8String]); }else{ UnitySendMessage("IOSCube","LoadAdmobIOSSuccess", [adid UTF8String]); ad.fullScreenContentDelegate = self; [rewardDict setObject:ad forKey:adid]; } }];}- (void)loadRewardedInter:(NSString*) adid { [GADRewardedInterstitialAd loadWithAdUnitID:adid request:[GADRequest request] completionHandler:^(GADRewardedInterstitialAd *_Nullable rewardedInterstitialAd,NSError *_Nullable error) { if (error) { UnitySendMessage("IOSCube","LoadAdmobIOSFail", [adid UTF8String]); }else{ UnitySendMessage("IOSCube","LoadAdmobIOSSuccess", [adid UTF8String]); rewardedInterstitialAd.fullScreenContentDelegate = self; [rewardDict setObject:rewardedInterstitialAd forKey:adid]; } }];}
#import <GoogleMobileAds/GoogleMobileAds.h>#import <UIKit/UIKit.h>
此次定义的rewardDict,在当前类为全局变量,这个类在extern "C"中一样可以得到,所以这里就是把oc++和oc代码都写在已有类下面的好处,不用在其他地方定义变量。
添加广告监听事件
- 这个是一个难点,因为在oc++中是不支持self写法的,而在官方文档中可以看到广泛的用到了self这个关键字。然后就是需要实现接口GADFullScreenContentDelegate,官网的写法根本不可行。不过最终经过实践为还是突破了瓶颈。
在@implementation之前,写入:
@interface UnityAppController()<GADFullScreenContentDelegate>@end
这里是.h中的写法,定义UnityAppController的头文件,注意我们无法在原本的UnityAppController.h 中实现GADFullScreenContentDelegate接口,代码无法编译,因为根本无法导入GADFullScreenContentDelegate的库文件。只有在UnityAppController.m中再次定义UnityAppController的头文件,并且实现接口可行。实现对应的方法:
/// Tells the delegate that the ad failed to present full screen content.- (void)ad:(nonnull id<GADFullScreenPresentingAd>)addidFailToPresentFullScreenContentWithError:(nonnull NSError *)error { NSLog(@"Linnea Ad did fail to present full screen content.");}/// Tells the delegate that the ad presented full screen content.- (void)adDidPresentFullScreenContent:(nonnull id<GADFullScreenPresentingAd>)ad { NSLog(@"Linnea Ad did present full screen content.");}/// Tells the delegate that the ad dismissed full screen content.- (void)adDidDismissFullScreenContent:(nonnull id<GADFullScreenPresentingAd>)ad { NSLog(@"Linnea Ad did dismiss full screen content"); UnitySendMessage("IOSCube","CloseAdmobIOSFinish", "close");}
这里是官网中oc代码,到此处编译通过,并且可以监听到每条广告的展示成功/失败,关闭事件。
如何调用广告Show事件,找到uvc。
这里遇到问题在展示广告的时候必须传入当前视图,但是我们在UnityAppController中是没有视图的,所以又要另辟蹊径。
UIViewController *getVisibleViewControllerFrom(UIViewController *vc) { if ([vc isKindOfClass:[UINavigationController class]]) { return getVisibleViewControllerFrom([((UINavigationController *) vc) visibleViewController]); } else if ([vc isKindOfClass:[UITabBarController class]]) { return getVisibleViewControllerFrom([((UITabBarController *) vc) selectedViewController]); } else { if (vc.presentedViewController) { return getVisibleViewControllerFrom(vc.presentedViewController); } else { return vc; } } return vc; } UIViewController *visibleViewController() { UIViewController *rootViewController =[[[[UIApplication sharedApplication] delegate] window] rootViewController]; return getVisibleViewControllerFrom(rootViewController); }
这里的方法是找到当前app所在视图,然后返回传递给show方法,广告展示在当前视图中。
到这里,广告请求和展示就完成了,最后写起来几行代码,但是最终变成这个样子不易,经过了很多变形,很多弯路。以后遇到同样问题,按照文中一步步走来,定能引刃而解。
共勉。 |
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