我是 Swift 的新手，我正在嘗試在我的 Flutter 專案中實施原生谷歌廣告。我按照分步檔案快速創建原生廣告，但現在我無法將出口與我的工廠聯系起來。
我試圖通過將視圖拖到工廠類來鏈接視圖：
但我收到此錯誤：
*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<NSObject 0x28140cd90> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key advertiserView.'
terminating with uncaught exception of type NSException
似乎第一個插座導致崩潰，因為它無法識別它。
根據我為實作此目的而遵循的檔案，代碼中沒有 IBOutlet，但僅在 .xib 檔案中鏈接。
我怎樣才能正確地做到這一點？
uj5u.com熱心網友回復：
檢查GADNativeAdRunner 檔案夾中是否有頭檔案。
要創建頭檔案，只需右鍵單擊 Runner 檔案夾 => new File... 然后選擇 Header。
命名GADNativeAd并復制下面的代碼。您現在可以系結您的插座。
//
// GADNativeAd.h
// Google Mobile Ads SDK
//
// Copyright 2017 Google LLC. All rights reserved.
//
#import <Foundation/Foundation.h>
#import <GoogleMobileAds/GADAdChoicesView.h>
#import <GoogleMobileAds/GADAdLoaderDelegate.h>
#import <GoogleMobileAds/GADAdValue.h>
#import <GoogleMobileAds/GADMediaContent.h>
#import <GoogleMobileAds/GADMediaView.h>
#import <GoogleMobileAds/GADMuteThisAdReason.h>
#import <GoogleMobileAds/GADNativeAdAssetIdentifiers.h>
#import <GoogleMobileAds/GADNativeAdDelegate.h>
#import <GoogleMobileAds/GADNativeAdImage.h>
#import <GoogleMobileAds/GADResponseInfo.h>
#import <GoogleMobileAds/GADVideoController.h>
#import <UIKit/UIKit.h>
/// Native ad. To request this ad type, pass kGADAdLoaderAdTypeNative
/// (see GADAdLoaderAdTypes.h) to the |adTypes| parameter in GADAdLoader's initializer method. If
/// you request this ad type, your delegate must conform to the GADNativeAdLoaderDelegate
/// protocol.
@interface GADNativeAd : NSObject
#pragma mark - Must be displayed if available
/// Headline.
@property(nonatomic, readonly, copy, nullable) NSString *headline;
#pragma mark - Recommended to display
/// Text that encourages user to take some action with the ad. For example "Install".
@property(nonatomic, readonly, copy, nullable) NSString *callToAction;
/// Icon image.
@property(nonatomic, readonly, strong, nullable) GADNativeAdImage *icon;
/// Description.
@property(nonatomic, readonly, copy, nullable) NSString *body;
/// Array of GADNativeAdImage objects.
@property(nonatomic, readonly, strong, nullable) NSArray<GADNativeAdImage *> *images;
/// App store rating (0 to 5).
@property(nonatomic, readonly, copy, nullable) NSDecimalNumber *starRating;
/// The app store name. For example, "App Store".
@property(nonatomic, readonly, copy, nullable) NSString *store;
/// String representation of the app's price.
@property(nonatomic, readonly, copy, nullable) NSString *price;
/// Identifies the advertiser. For example, the advertiser’s name or visible URL.
@property(nonatomic, readonly, copy, nullable) NSString *advertiser;
/// Media content. Set the associated media view's mediaContent property to this object to display
/// this content.
@property(nonatomic, readonly, nonnull) GADMediaContent *mediaContent;
#pragma mark - Other properties
/// Optional delegate to receive state change notifications.
@property(nonatomic, weak, nullable) id<GADNativeAdDelegate> delegate;
/// Reference to a root view controller that is used by the ad to present full screen content after
/// the user interacts with the ad. The root view controller is most commonly the view controller
/// displaying the ad.
@property(nonatomic, weak, nullable) UIViewController *rootViewController;
/// Dictionary of assets which aren't processed by the receiver.
@property(nonatomic, readonly, copy, nullable) NSDictionary<NSString *, id> *extraAssets;
/// Information about the ad response that returned the ad.
@property(nonatomic, readonly, nonnull) GADResponseInfo *responseInfo;
/// Called when the ad is estimated to have earned money. Available for allowlisted accounts only.
@property(nonatomic, nullable, copy) GADPaidEventHandler paidEventHandler;
/// Indicates whether custom Mute This Ad is available for the native ad.
@property(nonatomic, readonly, getter=isCustomMuteThisAdAvailable) BOOL customMuteThisAdAvailable;
/// An array of Mute This Ad reasons used to render customized mute ad survey. Use this array to
/// implement your own Mute This Ad feature only when customMuteThisAdAvailable is YES.
@property(nonatomic, readonly, nullable) NSArray<GADMuteThisAdReason *> *muteThisAdReasons;
/// Registers ad view, clickable asset views, and nonclickable asset views with this native ad.
/// Media view shouldn't be registered as clickable.
/// @param clickableAssetViews Dictionary of asset views that are clickable, keyed by asset IDs.
/// @param nonclickableAssetViews Dictionary of asset views that are not clickable, keyed by asset
/// IDs.
- (void)registerAdView:(nonnull UIView *)adView
clickableAssetViews:
(nonnull NSDictionary<GADNativeAssetIdentifier, UIView *> *)clickableAssetViews
nonclickableAssetViews:
(nonnull NSDictionary<GADNativeAssetIdentifier, UIView *> *)nonclickableAssetViews;
/// Unregisters ad view from this native ad. The corresponding asset views will also be
/// unregistered.
- (void)unregisterAdView;
/// Reports the mute event with the mute reason selected by user. Use nil if no reason was selected.
/// Call this method only if customMuteThisAdAvailable is YES.
- (void)muteThisAdWithReason:(nullable GADMuteThisAdReason *)reason;
@end
#pragma mark - Protocol and constants
/// The delegate of a GADAdLoader object implements this protocol to receive GADNativeAd ads.
@protocol GADNativeAdLoaderDelegate <GADAdLoaderDelegate>
/// Called when a native ad is received.
- (void)adLoader:(nonnull GADAdLoader *)adLoader didReceiveNativeAd:(nonnull GADNativeAd *)nativeAd;
@end
#pragma mark - Unified Native Ad View
/// Base class for native ad views. Your native ad view must be a subclass of this class and must
/// call superclass methods for all overridden methods.
@interface GADNativeAdView : UIView
/// This property must point to the native ad object rendered by this ad view.
@property(nonatomic, strong, nullable) GADNativeAd *nativeAd;
/// Weak reference to your ad view's headline asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *headlineView;
/// Weak reference to your ad view's call to action asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *callToActionView;
/// Weak reference to your ad view's icon asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *iconView;
/// Weak reference to your ad view's body asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *bodyView;
/// Weak reference to your ad view's store asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *storeView;
/// Weak reference to your ad view's price asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *priceView;
/// Weak reference to your ad view's image asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *imageView;
/// Weak reference to your ad view's star rating asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *starRatingView;
/// Weak reference to your ad view's advertiser asset view.
@property(nonatomic, weak, nullable) IBOutlet UIView *advertiserView;
/// Weak reference to your ad view's media asset view.
@property(nonatomic, weak, nullable) IBOutlet GADMediaView *mediaView;
/// Weak reference to your ad view's AdChoices view. Must set adChoicesView before setting
/// nativeAd, otherwise AdChoices will be rendered according to the preferredAdChoicesPosition
/// defined in GADNativeAdViewAdOptions.
@property(nonatomic, weak, nullable) IBOutlet GADAdChoicesView *adChoicesView;
@end
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