AdMob Mediation Video

首先將AdMob和TAMedia SDK整合至專案中，AdMob SDK可以在這裡下載 https://developers.google.com/mobile-ads-sdk/download?#downloadios。
接著在AdMob Mediation新增Custom Event（https://mediation.admob.com）。
新增Custom Event的詳細說明可以參考 https://developers.google.com/mobile-ads-sdk/docs/admob/mediation#ios。
最後，在專案中加入與Custom Event對應的Class，其中Custom Event的Class Name需要和新增的Class Name保持一致，例如Custom Event的Class Name是TADCustomView，則新增的Class Name也必須為TADCustomView。

Mediation View Controller

// MediationViewController.h

// mediation custom object 呼叫的 videoView, 因為沒有直接的關係
// 若需要使用則需將其 reference 傳回來使用
@property (nonatomic, strong) TADVideoAdView *videoView;

// MediationViewController.m

- (void)viewWillDisappear:(BOOL)animated {
    // MediationViewController 的 view 消失前, 將 _videoView 及其 delegate 設為 nil
    // _videoView 為 custom 物件呼叫的 TADVideoAdView 物件
    // 傳回來的 reference 在這裡使用 可以讓 mediation 呼叫的 video 物件跟著 MediationViewController 一起被 dealloc
    if (_videoView != nil) {
        _videoView.delegate = nil;
        _videoView = nil;
    }
}

Custom Video View

// TADCustomVideo.h

// 匯入 TAMedia SDK 定義
#import "TADVideoAdView.h"
#import "TADVideoAdViewDelegate.h"

// 匯入 Admob SDK 定義
#import "GADCustomEventBanner.h"
#import "GADCustomEventBannerDelegate.h"

@interface TADCustomVideo : NSObject<GADCustomEventBanner, TADVideoAdViewDelegate> {
    TADVideoAdView *_videoView;
}

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

@end

// TADCustomVideo.m

#import "TADCustomVideo.h"

@interface TADCustomVideo () {
    UIView *tempView;
}
@end

@implementation TADCustomVideo

@synthesize delegate = _delegate;

- (void)requestBannerAd:(GADAdSize)adSize
              parameter:(NSString *)serverParameter
                  label:(NSString *)serverLabel
                request:(GADCustomEventRequest *)customEventRequest  {
    
    // 將 GADCustomEventRequest 物件裡的資訊轉入 TADRequest 物件
    TADRequest *tadRequest = [TADRequest request];
    tadRequest.testing = customEventRequest.isTesting;
    tadRequest.gender = (TADGender)customEventRequest.userGender;
    tadRequest.birthday = customEventRequest.userBirthday;
    [tadRequest setLocationWithLatitude:customEventRequest.userLatitude longitude:customEventRequest.userLongitude accuracy:customEventRequest.userLocationAccuracyInMeters];
    
    // bannerView 物件初始化, 帶入自訂的origin
    if (_videoView == nil) {
        _videoView = [[TADVideoAdView alloc] initWithVideoAd];
    }
    
    // 必須要設定delegate
    _videoView.delegate = self;
    
    // serverParameter 為 AD Unit ID, 在 Admob 裡設定
    _videoView.adUnitID = serverParameter;
    
    // 載入廣告
    [_videoView loadRequest:tadRequest];
}

#pragma mark -
#pragma mark - TADBannerViewDelegate

- (void)adViewDidReceiveAd:(TADVideoAdView *)view {
    NSLog(@"CustomBanner - didReceived! View: %@", view);
    // 回傳成功地收到廣告
    // (回傳和 videoView 一樣大小的 UIView 物件給 customEventBanner)
    tempView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 250)];
    [_delegate customEventBanner:self didReceiveAd:tempView];
    
    // 將 (TADVideoAdView *)view 的 reference 傳回呼叫 mediation 的 view controller
    // 這裡呼叫 mediation 的 view controller 是 MediationViewController
    ((MediationViewController *)[_delegate viewControllerForPresentingModalView]).videoView = view;

    // 將 videoView 的 delegate 設為不是 self 的物件, 以免 custom 物件比 video 更早被 dealloc
    view.delegate = [_delegate viewControllerForPresentingModalView];
}

- (void)adView:(TADVideoAdView *)view didFailToReceiveAdWithError:(NSError *)error {
    [_delegate customEventBanner:self didFailAd:error];
}


- (void)adViewWillDismissScreen:(TADVideoAdView *)adView {
    [_delegate customEventBannerWillDismissModal:self];
}

- (void)adViewDidDismissScreen:(TADVideoAdView *)adView {
    [_delegate customEventBannerDidDismissModal:self];
}


@end

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