Xiaomi Redmi Note 8 64Gb+6Gb Dual LTE [32/132] Application binary interfaces

[C-2-1] Non-resizeable activities (that have resizeableActivity=false in AndroidManifest.xml ) and

apps targeting API level 23 or lower MUST NOT be allowed on secondary displays.

If device implementations allow launching normal Android Activities on secondary displays and a

secondary display has the android.view.Display.FLAG_PRIVATE flag:

[C-3-1] Only the owner of that display, system, and activities that are already on that

display MUST be able to launch to it. Everyone can launch to a display that has

android.view.Display.FLAG_PUBLIC flag.

3.3. Native API Compatibility

Native code compatibility is challenging. For this reason, device implementers are:

[SR] STRONGLY RECOMMENDED to use the implementations of the libraries listed below

from the upstream Android Open Source Project.

3.3.1. Application Binary Interfaces

Managed Dalvik bytecode can call into native code provided in the application .apk file as an ELF .so

file compiled for the appropriate device hardware architecture. As native code is highly dependent on

the underlying processor technology, Android defines a number of Application Binary Interfaces

(ABIs) in the Android NDK.

Device implementations:

[C-0-1] MUST be compatible with one or more defined ABIs and implement compatibility

with the Android NDK.

[C-0-2] MUST include support for code running in the managed environment to call into

native code, using the standard Java Native Interface (JNI) semantics.

[C-0-3] MUST be source-compatible (i.e. header-compatible) and binary-compatible (for

the ABI) with each required library in the list below.

[C-0-5] 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.

[C-0-6] MUST report, via the above parameters, a subset of the following list of ABIs and

MUST NOT report any ABI not on the list.

armeabi

armeabi-v7a

arm64-v8a

x86

x86-64

[C-0-7] MUST make all the following libraries, providing native APIs, available

to apps that include native code:

libaaudio.so (AAudio native audio support)

libandroid.so (native Android activity support)

libc (C library)

libcamera2ndk.so

libdl (dynamic linker)

libEGL.so (native OpenGL surface management)

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