Android 12 以降のコアに組み込まれた「Play as you download」機能により、ユーザーは小規模なダウンロードの後、残りのアセットをバックグラウンドで取得しながら、すぐにゲームを開始できます。これを可能にするため、Google Play はクラウドソーシングされた初回使用のファイルシステム アクセス パターンを分析し、アセットを自動的に識別して最適化します。
アプリの準備を整える
「Play as you download」機能を有効にしても、ユーザーが利用できるのは次の前提条件が満たされている場合に限られます。
Android App Bundle 形式と現在の広告 SDK を使用している場合、「Play as you download」を有効化するために必要な作業はすでに完了しています。デフォルトでは、すべてのアプリが有効になります。この機能を利用しない場合は、Google Play Console の [詳細設定] ページにある [Play as you download] タブを使用して無効にできます。
[null,null,["最終更新日 2025-07-27 UTC。"],[],[],null,["# Play as you Download\n\nBuilt into the core of Android 12+, Play as you Download allows your users to\nget into the experience quickly after a small download while remaining assets\nare fetched in the background. To make this happen, Google Play analyzes\ncrowdsourced first use file system access patterns and automatically\nidentifies assets to optimize.\n\nPrepare your app\n----------------\n\nEven with the Play as you Download feature enabled, your users only receive\nthe benefit once these prerequisites are met:\n\n- App is distributed using the Android App Bundle format\n- App has been updated to the current ads SDKs (if applicable)\n- App has enough crowdsourced information about first use experiences\n- App has first-use experiences that are suitable for the feature\n\nLearn more about how to [optimize your app for Play as you\nDownload](/google/play/play-as-you-download/best-practices).\n\nEnable your app\n---------------\n\nIf you're using the Android App Bundle format and current ads SDKs, then\nyou've done the work necessary to enable Play as you Download. By default, all\napps are enabled. If you don't want to take advantage of this benefit, you\ncan opt-out using the **Play as you Download** tab on the \"Advanced settings\"\npage of the Play Console.\n| **Note:** Due to device eligibility, not all devices will receive the Play as you Download experience. For example, a device's operating system must be at least Android 12 and there are other technical requirements.\n\nImprove your results\n--------------------\n\nLearn more about how to [optimize your app for Play as you\nDownload](/google/play/play-as-you-download/best-practices)."]]
