Android 64 bit Support needs to be enabled by default

[NathanaelA]

Describe the issue
By August 1st, Google will require apps to have 64 bit support enabled in addition to the 32 bit support.

Because the actual nativescript runtimes are native code (i.e. c/c++) this is a requirement we have to do, so getting this re-enabled by default; sooner than later will simplify everyone's life before the Aug 1st deadline.

Additional context
The 64 bit runtimes are shipped, but in the past were disabled by default to keep the .apk size smaller.
Indirectly related to #1392

[rosen-vladimirov]

Hey @NathanaelA ,
Thanks for bringing the attention to this new requirement. We'll discuss it internally and come up with a suggestion how to support this. It looks like we'll have to enable builds for both armv7 and arm64 architectures by default. This will make the build slower, so we may enable it for release builds only. At the moment users can control the architectures from the app.gradle file in the project, but we may add some command line flag to make it easier. What do you think for all of these ideas?

[NathanaelA]

@rosen-vladimirov - I think enabling it only on release is the best idea. Adding flags would be useful for people wanting to test; but as long as we document how to change the app.gradle for debug builds I think your good. ;-)

[brndusic]

I added this to my app.gradle and it worked fine.

defaultConfig {
       ......
       ndk.abiFilters 'armeabi-v7a','arm64-v8a','x86','x86_64'
}

[racknoris]

@brndusic Did you have any troubles in google play? Did the added 64 bit support affect any plugins?

@rosen-vladimirov Is this line what you were planning to add when using a flag?

[brndusic]

@racknoris I haven't noticed any problem. Warning on google play went away after I built this way.

[nlmunro]

I can confirm this solved it for me - using geolocation, firebase, localstorage and som UI plugins.

[racknoris]

@brndusic It seems that this is the official way to do it, does it do the same as your way?

android {
....
  defaultConfig {
    ....
    ndk {
      abiFilters.clear()
    }
  }
....

[lambourn]

Maybe I'm missing something here - I just built the Android version of our app and set the app.gradle as suggested by @brndusic

defaultConfig {
       ......
       ndk.abiFilters 'armeabi-v7a','arm64-v8a','x86','x86_64'
}

however, running APK Analyze from Android studio I do not see libNativeScript.so for x86_64:

[racknoris]

@lambourn could you please try in the way I found as well? perhaps it'll work

[lambourn]

@racknoris I did. Same result.

[brndusic]

@racknoris I have not analyzed .apk file, the thing it solved for me is that there is no more warning on app store about 64 bit support.