Question

Facebook原生广告中的

FBNativeAdsManagerDelegate在UIViewController类中正常运行，但在自定义NSObject类中使用时，它无效，即其委托方法nativeAdsLoaded和nativeAdsFailedToLoadWithError未被调用

CustomFBAd.h 文件

@import FBAudienceNetwork;

#import <Foundation/Foundation.h>

@protocol OnFBNativeAdLoadedDelegate<NSObject>

- (void)onFBNativeAdLoaded:(UIView *)adView;

@end

@interface CustomFBAd : NSObject

@property (nonatomic,weak) id <OnFBNativeAdLoadedDelegate>delegate;

-(void)requestNativeAd:(NSString *)FaceBookPlacementID;
@end

CustomFBAd.m 文件

#import "CustomFBAd.h"

@interface CustomFBAd ()<FBNativeAdsManagerDelegate,FBNativeAdDelegate>

@property (nonatomic, strong) FBNativeAdsManager *manager;
@property (nonatomic, weak) FBNativeAdScrollView *scrollView;

@end
@implementation CustomFBAd

-(void)requestNativeAd:(NSString *)FaceBookPlacementID{
    if(FaceBookPlacementID.length != 0){
        FBNativeAdsManager *manager = [[FBNativeAdsManager alloc] initWithPlacementID:FaceBookPlacementID forNumAdsRequested:5];
        manager.delegate = self;
        [FBAdSettings addTestDevice:@"cf1bb93becbe6e31f26fdf7d80d19b4ae225afaa"];
        [manager loadAds];
        self.manager = manager;
    }
}

#pragma mark - FBNativeAdDelegate implementation

- (void)nativeAdDidClick:(FBNativeAd *)nativeAd
{
    //    NSLog(@"Native ad was clicked.");
}

- (void)nativeAdDidFinishHandlingClick:(FBNativeAd *)nativeAd
{
    //    NSLog(@"Native ad did finish click handling.");
}

- (void)nativeAdWillLogImpression:(FBNativeAd *)nativeAd
{
    //    NSLog(@"Native ad impression is being captured.");
}

#pragma mark FBNativeAdsManagerDelegate

-(void)nativeAdDidLoad:(FBNativeAd *)nativeAd
{

}

- (void)nativeAdsLoaded
{
    NSLog(@"Native ads loaded, constructing native UI...");

    if (self.scrollView) {
        [self.scrollView removeFromSuperview];
        self.scrollView = nil;
    }

    FBNativeAdScrollView *scrollView = [[FBNativeAdScrollView alloc] initWithNativeAdsManager:self.manager withType:FBNativeAdViewTypeGenericHeight120];
    scrollView.xInset = 0;
    scrollView.delegate = self;
    self.scrollView = scrollView;

    [self.delegate onFBNativeAdLoaded:self.scrollView];
}

- (void)nativeAdsFailedToLoadWithError:(NSError *)error
{
    NSLog(@"Native ads failed to load with error: %@", error);
}

@end

如上面的代码所述，我在requestNativeAd方法中设置了 FBNativeAdsManager 的委托

manager.delegate = self;

还用作 FBNativeAdsManagerDelegate，FBNativeAdDelegate

@interface CustomFBAd ()<FBNativeAdsManagerDelegate,FBNativeAdDelegate>

并将此代码称为

    CustomFBAd *objFBAd = [[CustomFBAd alloc]init];
    objFBAd.delegate = self;
    [objFBAd requestNativeAd:@"my_FB_placement_Id"];

任何线索（注意：如果我在UIViewController中使用它，相同的代码是否有效）？谢谢

Answer 1

最后，在强烈引用CustomFBAd之后，它的作用就像一个魅力（感谢@MuhammadZohaibEhsan）。所以初始CustomFBAd为

@property(nonatomic, strong) CustomFBAd * objFBAd;

并改变

    CustomFBAd *objFBAd = [[CustomFBAd alloc]init];
    objFBAd.delegate = self;
    [objFBAd requestNativeAd:@"my_FB_placement_Id"];

到

    self.objFBAd = [[CustomFBAd alloc]init];
    self.objFBAd.delegate = self;
    [self.objFBAd requestNativeAd:@"my_FB_placement_Id"];

Answer 2

如果在uiviewcontroller中调用了委托方法，那么代码就会出现问题。我想你必须在你的控制器中有一个强大的CustomFBAd参考。因为其他参考文献都没有抓住您的CustomFBAd。希望它有所帮助

Facebook原生广告没有调用FBNativeAdsManagerDelegate实现方法

2 个答案: