蘋果ASA廣告投放歸因的接入

+(void)initSDK{
    //... ...
    //蘋果ASA；延遲4秒再發送，等ATT使用者操作結果，可能有IDFA
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(4 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [MySDK LogAds];
    });
    //啟用日誌；延遲6秒再發送，先讓Ads傳送完再發
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(6 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [MySDK LogOpen];
    });
    //... ...
}

https://api.myhost.com/ad/toutiao/click?adkey=abcde&idfa=__IDFA__&ip=__IP__&os=__OS__&callback=__CALLBACK__

https://api.myhost.com/ad/asa/click?idfa=xxxx&orgId=1234&campaignId=123456&adGroupId=123456&keywordId=12345678

/** 匯入上述3個框架*/
#import <iAd/iAd.h>
#import <AdServices/AdServices.h>
#import <AppTrackingTransparency/AppTrackingTransparency.h>
 
/** 蘋果Ads廣告*/
/** TODO：有些舊裝置新系統，會出現token為空的問題*/
+(void)LogAds{
//    14.3之後
    if (@available(iOS 14.3, *)) {
        NSError *error;
        NSString *token = [AAAttribution attributionTokenWithError:&error];
        NSLog(@"LogAds：AdServces,Token: %@", token);
        if (token != nil) {
            // 1、傳送POST給蘋果得到歸因資料
            [MySDK sendToken:[MySDK getANullableString:@"token" content:token] completeBlock:^(NSDictionary *attrData) {
                //非同步，會延後
                NSLog(@"LogAds：14.3+ Dict: %@", attrData);
                //TODO::傳送資料給服務端
                // ... ...
            }];
        }
 
//        14.3之前
    } else {
        if ([[ADClient sharedClient] respondsToSelector:@selector(requestAttributionDetailsWithBlock:)]) {
            NSLog(@"LogAds：iAd called");
            [[ADClient sharedClient] requestAttributionDetailsWithBlock:^(NSDictionary *attrData, NSError *error) {
                //非同步，會延後
                NSLog(@"LogAds：14- Dict: %@", attrData);
                //TODO::傳送資料給服務端
                // ... ...
            }];
        }
    }
}
 
/** 讀取可能為空的字串*/
+(nullable NSString *)getANullableString:(NSString *)desc content:(NSString *)content{
    if(content == nil){
        return @"";
    }
    return [NSString stringWithFormat:@"%@", content];
}
 
/** 傳送歸因token得到資料 */
+(void)sendToken:(NSString *)token completeBlock:(void(^)(NSDictionary* data))completeBlock{
    NSString *url = [NSString stringWithFormat:@"https://api-adservices.apple.com/api/v1/"];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:url]];
    request.HTTPMethod = @"POST";
    [request addValue:@"text/plain" forHTTPHeaderField:@"Content-Type"];
    NSData* postData = [token dataUsingEncoding:NSUTF8StringEncoding];
    [request setHTTPBody:postData];
    NSURLSession *session = [NSURLSession sharedSession];
    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        NSDictionary * result = NULL;
        if (error) {
             //請求失敗
            NSLog(@"LogAds：sendToken ERR");
            if (completeBlock) {
                NSMutableDictionary *nulldict = [NSMutableDictionary dictionary];
                completeBlock(nulldict);
            }
        }else{
            // 請求成功
            NSError *resError;
            NSMutableDictionary *resDic = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&resError];
            result = [[NSDictionary alloc] initWithDictionary:resDic];
            if (completeBlock) {
                completeBlock(result);
            }
        }
    }];
    [dataTask resume];
}

#import <AppTrackingTransparency/AppTrackingTransparency.h>
 
-(void)initSDK{
    //... ...
    //IDFA iOS14不同方式
    if (@available(iOS 14, *)) {
// iOS14及以上版本需要先請求許可權
        [ATTrackingManager requestTrackingAuthorizationWithCompletionHandler:^(ATTrackingManagerAuthorizationStatus status) {
            // 獲取到許可權後，依然使用老方法獲取idfa
            // iOS14以後，idfa在回撥之後才能獲得，應當等回撥後再發送日誌
            if (status == ATTrackingManagerAuthorizationStatusAuthorized) {
                self->_idfa = [[ASIdentifierManager sharedManager].advertisingIdentifier UUIDString];
            }
        }];
    }else{
        _idfa = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
    }
    //... ...
}