Question

据我所知，最新的Lollipop（Android 5.x）操作系统是为支持64位架构而构建的。是否在64位架构上支持任何旧版Android OS（Android 5.x之前版本）？

Answer 1

快速检查Android Compatibility Definition Document for Android 4.4部分3.3.1陈述：

MUST report, via android.os.Build.CPU_ABI, only one of the ABIs listed below 
    * armeabi-v7a
    * x86
    * mips

如果您查看Android Compatibility Definition Document for Android 5.0，请参阅第3.3.1节：

* MUST support the equivalent 32-bit ABI if any 64-bit ABI is supported
* MUST accurately report the native Application Binary Interface (ABI) supported by the device, via the
    android.os.Build.SUPPORTED_ABIS, android.os.Build.SUPPORTED_32_BIT_ABIS, and
    android.os.Build.SUPPORTED_64_BIT_ABIS parameters, each a comma separated list of ABIs ordered from the most to the least preferred one

所以答案是肯定的，在Lollipop 5.x之前不支持64位。或者至少不是暴露给应用程序的兼容性API要求层。

如果您想查看较旧的CDD，可以在此处找到它们： http://source.android.com/compatibility/downloads.html

哪个版本的android OS支持64位架构

1 个答案: