一句话:梳理 Android non-SDK API 的调用方式、兼容性风险及 Android 9 起的限制与检查机制。
Android 应用开发依赖 SDK 提供的丰富 API,但 Android 框架中仍存在大量未充分文档化的 non-SDK API。本文围绕这些 API 展开剖析:它们可通过 Java 反射等非常规方式调用,却缺乏稳定性与兼容性保证,可能在未来 Android 版本中被修改甚至移除。自 Android 9(API level 28)起,Google 开始严格限制 non-SDK API 的使用,并将相应的检查机制集成到 Android OS 中。摘要未给出具体研究方法与实验评估细节。
During the Android app development, the SDK is essential, which provides rich APIs to facilitate the implementations of functionalities. However, in the Android framework, there still exist plenty of non-SDK APIs that are not well documented. These non-SDK APIs can be invoked through unconventional ways, such as Java reflection. On the other hand, these APIs are not stable and may be changed or even removed in future Android versions, providing no guarantee for compatibility. From Android 9 (API level 28), Google began to strictly restrict the use of non-SDK APIs, and the corresponding checking mechanism has been integrated into the Android OS.