x/mobile: Gomobile is not compatible with modern Android SDKs and NDKs

[bemasc]

Gomobile makes a number of assumptions about the Android SDK and NDK that are no longer correct:

• ANDROID_HOME provides the SDK location (soft-deprecated in favor of a default path)
• Android API 15 is supported. (All supported SDKs have a minimum API version of 16 or higher)
• There is only one possible NDK to use (false under the new "side by side" NDK system)
• ANDROID_NDK_HOME provides the NDK location (hard-deprecated due to "side by side" NDK)
• $ANDROID_HOME/ndk-bundle is the default NDK location (it is now $ANDROID_HOME/ndk/<version>)
• Android binary resource packages only contain "Type" and "TypeSpec" entries (they can now contain Staged Alias Headers as well)

These assumptions seem to make Gomobile incompatible with NDK 24, and somewhat inconvenient to use with other modern SDK and NDK versions.

[bemasc]

Proposed fix at https://go-review.googlesource.com/c/mobile/+/401574

[thanm]

Thanks for the report.

[gopherbot]

Change https://go.dev/cl/401574 mentions this issue: x/mobile: modernize handling of Android SDK and NDK paths

[hyangah]

Thanks for the report and change.

What is the alternative to ANDROID_HOME now? From the latest android doc, I see ANDROID_HOME is still listed as the primary environment variable to control the location of android SDK. (ANDROID_SDK_ROOT is deprecated)
https://developer.android.com/studio/command-line/variables

[changkun]

What is the alternative to ANDROID_HOME now?

The CL 244057 is relevant to this question, which may help CL 401574 further improve in updating to the latest conventions.