AI ツールを使用して移行する(ベータ版)

AI ツールを使用して Google Mobile Ads SDK から GMA Next-Gen SDK への移行を最適化するには、AI 環境にスキルを追加します。スキルを追加すると、AI ツールに GMA Next-Gen SDK に固有のコンテキストが提供され、 AI によるコード生成の出力が改善されます。

このガイドでは、 Google Mobile Ads SDK から GMA Next-Gen SDK への移行に役立つように AI モデルを最適化する方法について説明します。

前提条件

Android Studio を使用する場合は、次の操作を行います。

スキルを追加する

Google は、移行手順で役立つ AI ツール用の手順が記載された SKILL.md ファイルを提供しています。

AI ツールで GMA Next-Gen SDK 固有のスキルを使用する手順は次のとおりです。

Android Studio

  1. プロジェクトのルート ディレクトリに、.skills/ という名前のフォルダを作成します。

  2. google-mobile-ads-android-migrate-to-next-gen という名前のスキルのディレクトリを作成します。

  3. google-mobile-ads-android-migrate-to-next-gen ディレクトリに SKILL.md という名前のファイルを作成します。

  4. SKILL.md ファイルに次の手順を追加します。

    ---
    name: google-mobile-ads-android-migrate-to-next-gen
    description: Migrates Android applications from the old, legacy Google Mobile
      Ads (GMA) SDK (com.google.android.gms:play-services-ads) to the new GMA
      Next-Gen SDK (com.google.android.libraries.ads.mobile.sdk:ads-mobile-sdk).
      Provides comprehensive mapping tables for imports, classes, and method
      signatures to help determine migration steps. Use when migrating an existing
      Android codebase from the old, legacy GMA SDK to GMA Next-Gen SDK.
    metadata:
      version: 1.0.0
    ---
    
    # AI Migration Agent Instructions for the Google Mobile Ads SDK
    
    ## Migration Workflow
    
    Use this checklist to track your migration progress:
    
    *   **Configure Gradle**:
        -   [ ] Replace `com.google.android.gms:play-services-ads` with the latest
            stable version of
            `com.google.android.libraries.ads.mobile.sdk:ads-mobile-sdk`.
        -   [ ] Update `minSdk` (24+) and `compileSdk` (34+).
        -   [ ] Exclude `play-services-ads` and `play-services-ads-lite` from all
            dependencies globally in the app-level build file to avoid duplicate
            symbol errors.
        -   [ ] Sync Gradle before moving on to the next step.
    *   **Per-File Migration**:
        -   [ ] Refactor the codebase following the API Mapping and Method Mapping
            tables to migrate imports, class names, and method signature to GMA
            Next-Gen SDK.
    *   **Verify and Build**:
        -   [ ] Confirm a successful clean build.
    
    ## Core Migration Rules
    
    *   **SDK Versions**: **ALWAYS** look up and use the latest stable version for
        `com.google.android.libraries.ads.mobile.sdk:ads-mobile-sdk`. Do not assume
        a version number.
    *   **App ID Usage**: **Always** use the value of the
        `com.google.android.gms.ads.APPLICATION_ID` meta-data tag from
        `AndroidManifest.xml` for the `applicationId` in `InitializationConfig`.
        *   *Constraint*: Preserve the `<meta-data>` tag in the manifest; it is
            still required for publishers using the User Messaging Platform SDK.
    *   **Initialization Sequence**:
        1.  Call `MobileAds.initialize()` on a background thread.
        2.  Ensure `initialize()` is called **before** any other SDK methods.
        3.  If using `RequestConfiguration`, bundle it into
            `InitializationConfig.Builder.setRequestConfiguration()`. **Do not**
            call `MobileAds.setRequestConfiguration()` before initialization.
    *   **UI Threading**: **MANDATORY**: Callbacks in GMA-Next Gen SDK are invoked
        on a background thread. Wrap UI-related operations (Toasts, View updates) in
        `runOnUiThread {}` or `Dispatchers.Main.launch {}` within SDK callbacks.
    *   **Mediation**: Classes implementing
        `com.google.android.gms.ads.mediation.Adapter` MUST continue using
        `com.google.android.gms.ads`.
    
    ## Format Specifics
    
    ### Banner Ads
    
    *   Use `com.google.android.libraries.ads.mobile.sdk.banner.AdView` for loading
        GMA Next-Gen SDK banners.
    *   The following API checks if a banner is collapsible:
        `adView.getBannerAd().isCollapsible()`.
    
    ### Native Ads
    
    *   **NativeAdLoader**: `NativeAdLoader` is abstract and cannot be instantiated.
        It is used statically (e.g., `NativeAdLoader.load(...)`).
    *   The following APIs are now set on the `NativeAdRequest.Builder`:
        *   `.setCustomFormatIds(customFormatIds: List<String>)`
        *   `.disableImageDownloading()`
        *   `.setMediaAspectRatio(mediaAspectRatio: NativeMediaAspectRatio)`
        *   `.setAdChoicesPlacement(adChoicesPlacement: AdChoicesPlacement)`
        *   `.setVideoOptions(videoOptions: VideoOptions)`
    *   **Removal**: Delete all "Mute This Ad" logic; it is unsupported in GMA
        Next-Gen SDK.
    *   **MediaView**: `NativeAd` no longer has a direct `mediaView` variable; use
        `registerNativeAd(nativeAd, mediaView)` to associate the ad with the view.
    
    ### Ad preloading
    
    *   Unless specified in the mapping table, ad preloading methods in the GMA
        Next-Gen SDK retain the same API signatures and parameters as the Old SDK.
    
    ## API Mapping
    
    This table covers the main classes and their GMA Next-Gen SDK equivalents.
    
    | Feature                    | Old SDK Import (`com.google.android.gms.ads...`)                                     | GMA Next-Gen SDK Import (`com.google.android.libraries.ads.mobile.sdk...` )                                                                                                           |
    |:---------------------------|:-------------------------------------------------------------------------------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
    | **Core**                   |                                                                                      |                                                                                                                                                                                       |
    | Initialization             | `MobileAds`                                                                          | `MobileAds`, `initialization.InitializationConfig`                                                                                                                                    |
    | Initialization Listener    | `initialization.OnInitializationCompleteListener`                                    | `initialization.OnAdapterInitializationCompleteListener`                                                                                                                              |
    | Ad Request                 | `AdRequest`                                                                          | *Format specific* (e.g. `common.AdRequest`, `banner.BannerAdRequest`, `nativead.NativeAdRequest`) (Ad Unit ID is declared in `Builder`. Load() no longer takes an activity)           |
    | Load Error                 | `LoadAdError`                                                                        | `common.LoadAdError` (`LoadAdError` no longer has a domain variable. REMOVE the domain variable if found.)                                                                            |
    | Full Screen Show Error     | `AdError` (within `FullScreenContentCallback`)                                       | `common.FullScreenContentError` (within format-specific `AdEventCallback`)                                                                                                            |
    | Request Configuration      | `RequestConfiguration`                                                               | `common.RequestConfiguration` (Nested Enums/Constants for RequestConfiguration are now under common.RequestConfiguration.)                                                            |
    | Event Callbacks            | `FullScreenContentCallback` (for full screen formats), `AdListener` (Banner, Native) | *Format Specific* (e.g., `interstitial.InterstitialAdEventCallback`, `banner.BannerAdEventCallback`, `native.NativeAdEventCallback`). Variable on the ad format is `adEventCallback`. |
    | **Tools**                  |                                                                                      |                                                                                                                                                                                       |
    | Ad Inspector               | `MobileAds.openAdInspector()`                                                        | `MobileAds.openAdInspector()` (`openAdInspector` no longer takes an activity)                                                                                                         |
    | Ad Inspector Listener      | `OnAdInspectorClosedListener`                                                        | `common.OnAdInspectorClosedListener`                                                                                                                                                  |
    | **Formats**                |                                                                                      |                                                                                                                                                                                       |
    | App Open                   | `appopen.AppOpenAd`                                                                  | `appopen.AppOpenAd`                                                                                                                                                                   |
    | App Open Load              | `appopen.AppOpenAd.AppOpenAdLoadCallback`                                            | `common.AdLoadCallback<appopen.AppOpenAd>`                                                                                                                                            |
    | Banner                     | `AdView`, `AdSize`                                                                   | `banner.AdView`, `banner.AdSize` (`AdView` no longer has `pause()`, `resume()`, `setAdSize()`). `AdSize` is declared in `BannerAdRequest`.                                            |
    | Banner Load                | `AdListener`                                                                         | `common.AdLoadCallback<banner.BannerAd>`                                                                                                                                              |
    | Banner Events              | `AdListener`                                                                         | `banner.BannerAdEventCallback`, `banner.BannerAdRefreshCallback`                                                                                                                      |
    | Interstitial               | `interstitial.InterstitialAd`                                                        | `interstitial.InterstitialAd`                                                                                                                                                         |
    | Interstitial Load          | `interstitial.InterstitialAd.InterstitialAdLoadCallback`                             | `common.AdLoadCallback<interstitial.InterstitialAd>`                                                                                                                                  |
    | Ad Loader                  | `AdLoader`                                                                           | `nativead.NativeAdLoader`                                                                                                                                                             |
    | Native                     | `nativead.NativeAd`                                                                  | `nativead.NativeAd` (No longer has a `mediaView` variable)                                                                                                                            |
    | Native Custom Format Ad    | `nativead.NativeCustomFormatAd`                                                      | `nativead.CustomNativeAd`                                                                                                                                                             |
    | Native Custom Click        | `nativead.NativeCustomFormatAd.OnCustomClickListener`                                | `nativead.OnCustomClickListener` (set on the `CustomNativeAd` object (e.g., `.onCustomClickListener`)                                                                                 |
    | Native Load                | `nativead.NativeAd.OnNativeAdLoadedListener`                                         | `nativead.NativeAdLoaderCallback`                                                                                                                                                     |
    | Native Ad View             | `nativead.NativeAdView`                                                              | `nativead.NativeAdView`                                                                                                                                                               |
    | Media Content              | `MediaContent`                                                                       | `nativead.MediaContent` (hasVideoContent is declared as a `val`)                                                                                                                      |
    | Media Aspect Ratio         | `MediaAspectRatio`                                                                   | `nativead.MediaAspectRatio`                                                                                                                                                           |
    | Video Options              | `VideoOptions`                                                                       | `common.VideoOptions`                                                                                                                                                                 |
    | Video Controller           | `VideoController`                                                                    | `common.VideoController` (VideoLifecycleCallbacks is now an interface, so instantiate with `object : VideoController.VideoLifecycleCallbacks { ... }`)                                |
    | Rewarded                   | `rewarded.RewardedAd`                                                                | `rewarded.RewardedAd`                                                                                                                                                                 |
    | Rewarded Load              | `rewarded.RewardedAd.RewardedAdLoadCallback`                                         | `common.AdLoadCallback<rewarded.RewardedAd>`                                                                                                                                          |
    | Rewarded Interstitial      | `rewardedinterstitial.RewardedInterstitialAd`                                        | `rewardedinterstitial.RewardedInterstitialAd`                                                                                                                                         |
    | Rewarded Interstitial Load | `rewardedinterstitial.RewardedInterstitialAd.RewardedInterstitialAdLoadCallback`     | `common.AdLoadCallback<rewardedinterstitial.RewardedInterstitialAd>`                                                                                                                  |
    | Paid Event Listener        | `OnPaidEventListener`                                                                | `common.AdEventCallback`                                                                                                                                                              |
    | Response Info              | `ResponseInfo`                                                                       | `common.ResponseInfo`                                                                                                                                                                 |
    | Adapter Response Info      | `AdapterResponseInfo`                                                                | `common.AdSourceResponseInfo`                                                                                                                                                         |
    | **Rewards**                |                                                                                      |                                                                                                                                                                                       |
    | Reward Listener            | `OnUserEarnedRewardListener`                                                         | `rewarded.OnUserEarnedRewardListener`                                                                                                                                                 |
    | Reward Item                | `rewarded.RewardItem`                                                                | `rewarded.RewardItem` (property access on `RewardedAd` and `RewardedInterstitialAd` is now `getRewardItem()`)                                                                         |
    | Ad Value                   | `AdValue`                                                                            | `common.AdValue`                                                                                                                                                                      |
    | **Preloading**             |                                                                                      |                                                                                                                                                                                       |
    | Configuration              | `preload.PreloadConfiguration`                                                       | `common.PreloadConfiguration`                                                                                                                                                         |
    | Callback                   | `preload.PreloadCallbackV2`                                                          | `common.PreloadCallback` (Now an interface instead of an abstract class)                                                                                                              |
    | Interstitial Preloader     | `interstitial.InterstitialPreloader`                                                 | `interstitial.InterstitialAdPreloader`                                                                                                                                                |
    | **Ad Manager**             |                                                                                      |                                                                                                                                                                                       |
    | Ad Request                 | `admanager.AdManagerAdRequest`                                                       | `common.AdRequest` (Now directly implemented in the `AdRequest` class)                                                                                                                |
    | Ad View                    | `admanager.AdView`                                                                   | `banner.AdView` (No `AdManagerAdView` class)                                                                                                                                          |
    | App Event Listener         | `admanager.AppEventListener`                                                         | `common.OnAppEventListener`                                                                                                                                                           |
    
    ## Method Mapping
    
    This table covers the main methods and their GMA Next-Gen SDK equivalents.
    
    | Feature                                  | Old SDK Method Signature                                                                                                                     | GMA Next-Gen SDK Method Signature                                                                                                                                                                                                                                                          |
    |:-----------------------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
    | **Core**                                 |                                                                                                                                              |                                                                                                                                                                                                                                                                                            |
    | MobileAds Initialization                 | `MobileAds.initialize(Context context, OnInitializationCompleteListener listener)`                                                           | `MobileAds.initialize(Context context, InitializationConfig config, OnInitializationCompleteListener listener)`                                                                                                                                                                            |
    | InitializationConfig Builder             | N/A                                                                                                                                          | `InitializationConfig.Builder(String applicationId)`                                                                                                                                                                                                                                       |
    | Ad Request Builder                       | `AdRequest.Builder().build()`                                                                                                                | `AdRequest.Builder(String adUnitId).build()` (for App Open, Interstitial, Rewarded, Rewarded Interstitial) **Banner:** `BannerAdRequest.Builder(String adUnitId, AdSize adSize).build()` **Native:** `NativeAdRequest.Builder(String adUnitId, nativeAdTypes: List<NativeAdType>).build()` |
    | Add Network Extras (AdMobAdapter)        | `AdRequest.Builder().addNetworkExtrasBundle(Class<MediationExtrasReceiver>, Bundle networkExtras)`                                           | `AdRequest.Builder(String adUnitId).setGoogleExtrasBundle(Bundle extraBundle)`                                                                                                                                                                                                             |
    | Add Network Extras (Ad Source Adapter)   | `AdRequest.Builder().addNetworkExtrasBundle(Class<MediationExtrasReceiver>, Bundle networkExtras)`                                           | `AdRequest.Builder(String adUnitId).putAdSourceExtrasBundle(Class<MediationExtrasReceiver> adapterClass, Bundle adSourceExtras)`                                                                                                                                                           |
    | Custom Targeting                         | `AdRequest.Builder().setCustomTargeting(String key, String value)`                                                                           | `AdRequest.Builder(String adUnitId).putCustomTargeting(String key, String value)`                                                                                                                                                                                                          |
    | **Formats**                              |                                                                                                                                              |                                                                                                                                                                                                                                                                                            |
    | App Open                                 | `AppOpenAd.load(Context context, String adUnitId, AdRequest request, AppOpenAdLoadCallback loadCallback)`                                    | `AppOpenAd.load(AdRequest request, AdLoadCallback<AppOpenAd> loadCallback)`                                                                                                                                                                                                                |
    | Banner                                   | `AdView.loadAd(AdRequest request)`                                                                                                           | `AdView.loadAd(BannerAdRequest request, AdLoadCallback<BannerAd> loadCallback)`                                                                                                                                                                                                            |
    | Interstitial                             | `InterstitialAd.load(Context context, String adUnitId, AdRequest request, InterstitialAdLoadCallback loadCallback)`                          | `InterstitialAd.load(AdRequest request, AdLoadCallback<InterstitialAd> loadCallback)`                                                                                                                                                                                                      |
    | Rewarded                                 | `RewardedAd.load(Context context, String adUnitId, AdRequest request, RewardedAdLoadCallback loadCallback)`                                  | `RewardedAd.load(AdRequest request, AdLoadCallback<RewardedAd> loadCallback)`                                                                                                                                                                                                              |
    | Rewarded Interstitial                    | `RewardedInterstitialAd.load(Context context, String adUnitId, AdRequest request, RewardedInterstitialAdLoadCallback loadCallback)`          | `RewardedInterstitialAd.load(AdRequest request, AdLoadCallback<RewardedInterstitialAd> loadCallback)`                                                                                                                                                                                      |
    | Native Builder                           | `AdLoader.Builder(Context context, String adUnitId).forNativeAd(NativeAd.OnNativeAdLoadedListener onNativeAdLoadedListener)`                 | `NativeAdRequest.Builder(String adUnitId, nativeAdTypes: List<NativeAdType>)` (Include `NativeAd.NativeAdType.NATIVE` in `nativeAdTypes`)                                                                                                                                                  |
    | Native Load                              | `AdLoader.Builder(...).build().loadAd(AdRequest request)`                                                                                    | `NativeAdLoader.load(NativeAdRequest request, NativeAdLoaderCallback callback)`                                                                                                                                                                                                            |
    | Native Ad Register                       | `NativeAdView.setNativeAd(NativeAd nativeAd)`                                                                                                | `NativeAdView.registerNativeAd(NativeAd nativeAd, mediaView: MediaView?)`                                                                                                                                                                                                                  |
    | Set an App Event Listener (Banner)       | `AdManagerAdView.appEventListener`                                                                                                           | `BannerAd.adEventCallback` (`onAppEvent(name: String, data: String?)` is now part of the `BannerAdEventCallback`)                                                                                                                                                                          |
    | Set an App Event Listener (Interstitial) | `AdManagerInterstitialAd.appEventListener`                                                                                                   | `InterstitialAd.adEventCallback` (`onAppEvent(name: String, data: String?)` is now part of the `InterstitialAdEventCallback`)                                                                                                                                                              |
    | **Callbacks**                            |                                                                                                                                              |                                                                                                                                                                                                                                                                                            |
    | onAdOpened                               | `AdListener.onAdOpened()`                                                                                                                    | `AdEventCallback.onAdShowedFullScreenContent()`                                                                                                                                                                                                                                            |
    | onAdClosed                               | `AdListener.onAdClosed()`                                                                                                                    | `AdEventCallback.onAdDismissedFullScreenContent()`                                                                                                                                                                                                                                         |
    | onFailedToShowFullScreenContent          | `onAdFailedToShowFullScreenContent(adError: AdError)`                                                                                        | `onAdFailedToShowFullScreenContent(fullScreenContentError: FullScreenContentError)`                                                                                                                                                                                                        |
    | onAdLoaded                               | **AdLoadCallback**: `onAdLoaded(ad: T)` (e.g., `InterstitialAdLoadCallback`, `RewardedAdLoadCallback`, `RewardedInterstitialAdLoadCallback`) | Parameter name is always `ad` **Format specific**: `onAdLoaded(ad: InterstitialAd)`, `onAdLoaded(ad: RewardedAd)`, `onAdLoaded(ad: RewardedInterstitialAd)`                                                                                                                                |
    | onAdFailedToLoad                         | `onAdFailedToLoad(loadAdError: LoadAdError)`                                                                                                 | `onAdFailedToLoad(adError: LoadAdError)`                                                                                                                                                                                                                                                   |
    | onCustomFormatAdLoaded                   | `OnCustomFormatAdLoadedListener.onCustomFormatAdLoaded(NativeCustomFormatAd ad)`                                                             | `NativeAdLoaderCallback.onCustomNativeAdLoaded(CustomNativeAd customNativeAd)`                                                                                                                                                                                                             |
    | onPaidEventListener                      | `OnPaidEventListener.onPaidEvent(AdValue value)`                                                                                             | `AdEventCallback.onAdPaid(value: AdValue)` (Format-specific e.g., `banner.BannerAdEventCallback.onAdPaid(value: AdValue)`)                                                                                                                                                                 |
    | onVideoMute                              | `onVideoMute(muted: Boolean)`                                                                                                                | `onVideoMute(isMuted: Boolean)`                                                                                                                                                                                                                                                            |
    | onAdPreloaded                            | `onAdPreloaded(preloadId: String, responseInfo: ResponseInfo?)`                                                                              | `onAdPreloaded(preloadId: String, responseInfo: ResponseInfo)`                                                                                                                                                                                                                             |
    | **Preloading**                           |                                                                                                                                              |                                                                                                                                                                                                                                                                                            |
    | Configuration                            | `PreloadConfiguration.Builder(String adUnitId).build()`                                                                                      | `PreloadConfiguration(AdRequest request)`                                                                                                                                                                                                                                                  |
    | **Response Info**                        |                                                                                                                                              |                                                                                                                                                                                                                                                                                            |
    | Get Response Info                        | `ad.responseInfo`                                                                                                                            | `ad.getResponseInfo()`                                                                                                                                                                                                                                                                     |
    | Loaded Adapter Responses Info            | `responseInfo.getLoadedAdapterResponseInfo()`                                                                                                | `responseInfo.loadedAdSourceResponseInfo`                                                                                                                                                                                                                                                  |
    | Get Adapter Responses                    | `responseInfo.getAdapterResponses()`                                                                                                         | `responseInfo.adSourceResponses`                                                                                                                                                                                                                                                           |
    | Get Mediation Adapter Class              | `responseInfo.getMediationAdapterClassName()`                                                                                                | `responseInfo.adapterClassName`                                                                                                                                                                                                                                                            |
    | **Adapter Response Info**                |                                                                                                                                              |                                                                                                                                                                                                                                                                                            |
    | Ad Source ID                             | `AdapterResponseInfo.getAdSourceId()`                                                                                                        | `AdSourceResponseInfo.id`                                                                                                                                                                                                                                                                  |
    | Ad Source Name                           | `AdapterResponseInfo.getAdSourceName()`                                                                                                      | `AdSourceResponseInfo.name`                                                                                                                                                                                                                                                                |
    | Ad Source Instance ID                    | `AdapterResponseInfo.getAdSourceInstanceId()`                                                                                                | `AdSourceResponseInfo.instanceId`                                                                                                                                                                                                                                                          |
    | Ad Source Instance Name                  | `AdapterResponseInfo.getAdSourceInstanceName()`                                                                                              | `AdSourceResponseInfo.instanceName`                                                                                                                                                                                                                                                        |

    詳細については、 スキルを使用してエージェント モードを拡張するをご覧ください。

プロンプトでスキルを呼び出す

プロジェクトにスキルを追加したら、次のプロンプトの例を使用して AI ツールでスキルを呼び出します。

Android Studio

スキルを呼び出すには、「@」と入力して google-mobile-ads-android-migrate-to-next-gen スキルを選択します。

@google-mobile-ads-android-migrate-to-next-gen Migrate the files in my project from the old Google Mobile Ads SDK to the new GMA Next-Gen SDK

フィードバックを送信

Google は、GMA Next-Gen SDK トピックに関するレスポンスを改善するため、AI コードアシスト ツールに提供されるコンテキストの評価と最適化を継続しています。

Gemini の最適化についてフィードバックがある場合は、GMA Next-Gen SDK Discord チャンネルにご参加ください。GMA Next-Gen SDK