使用 ARCore 建立 Play 免安裝應用程式
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ARCore 與 Play 免安裝應用程式相容，這項 Android 功能可讓您在搭載 Android 5.0 (API 級別 21) 以上版本的裝置上啟動應用程式和遊戲，不必先安裝。只要提供免安裝體驗，即可提升應用程式或遊戲的曝光度，協助吸引更多活躍使用者，並降低阻礙。
與傳統應用程式的差異
後續步驟
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上次更新時間：2025-07-26 (世界標準時間)。
[null,null,["上次更新時間：2025-07-26 (世界標準時間)。"],[[["\u003cp\u003eARCore supports Play Instant Apps, allowing Android apps and games to launch without installation on devices with Android 5.0 (API level 21) or higher.\u003c/p\u003e\n"],["\u003cp\u003eUnlike regular apps, AR-enabled Play Instant apps require manual checks and installation prompts for Google Play Services for AR using \u003ccode\u003eArCoreApk.checkAvailability()\u003c/code\u003e and \u003ccode\u003eArCoreApk.requestInstall()\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe ARCore SDK contributes to the Play Instant App size limit, potentially using around 300kB of the 15MB allowance.\u003c/p\u003e\n"]]],["ARCore works with Play Instant Apps, allowing apps to run on Android 5.0+ without installation. Unlike standard apps, Play Instant apps do not automatically ensure \"Google Play Services for AR\" is installed. Developers must use `ArCoreApk.checkAvailability()` and `ArCoreApk.requestInstall()` to manage this. Instant Apps have size restrictions, with the ARCore SDK potentially consuming around 300kB of the 15MB limit. Creating instant-enabled app bundles requires following the Android Developer's guide.\n"],null,["# Creating Play Instant apps using ARCore\n\nARCore is compatible with\n[Play Instant Apps](https://developer.android.com/topic/google-play-instant/overview),\nan Android feature that enables apps and games to launch on devices running\nAndroid 5.0 (API level 21) or higher without having to first be installed. By\nproviding an instant experience, you can improve your app or game's discovery,\nwhich helps drive more active users and create lower friction experiences.\n\nDifferences compared to conventional apps\n-----------------------------------------\n\n- When an AR-enabled Play Instant app is installed, Google Play will **not**\n automatically ensure that\n [Google Play Services for AR](https://play.google.com/store/apps/details?id=com.google.ar.core)\n is installed and up to date, no matter if your app is AR Required or AR\n Optional.\n\n Instead, your app should use\n [`ArCoreApk.checkAvailability()`](/ar/reference/java/com/google/ar/core/ArCoreApk#checkAvailability(android.content.Context))\n and\n\n [`ArCoreApk.requestInstall()`](/ar/reference/java/com/google/ar/core/ArCoreApk#requestInstall(android.app.Activity,%20boolean))\n to check that Google Play Services for AR is\n installed.\n- Instant Apps have size constraints. The ARCore SDK may count towards\n approximately 300kB of the 15MB Play Instant App size limit. For more\n information, see\n [Reduce the size of your instant app](https://developer.android.com/topic/google-play-instant/guides/reduce-module-size).\n\nNext steps\n----------\n\n- Follow the Android Developer's guide on how to [create an instant-enabled app bundle](https://developer.android.com/topic/google-play-instant/getting-started/instant-enabled-app-bundle)."]]
