Appendix 3: SDK size

Android MJCS – SDK Size

We currently have a limitation of 100 MB on android platforms for initial APK. This size is combination of customer code, dependencies and MJCS SDK.

Current Android MJCS SDK will add about 94.7 MB to overall APK size.

Size chart for 8.3.0 with ProGuard using MJCS Script and APK analyser size is from “Download size”

MJCS Core	2.2MB	This includes AndroidX, Kotlin dependancies.

MJCS Arch	bit	size	emulator	devices	compatible with
armeabi-v7a	32	~10.1mb	NO	YES	x86, arm64-v8a
arm64-v8a	64	~10.2mb	NO	YES	x
x86	32	~11.1mb	YES	YES	x
x86_64	32_64	~11.2mb	YES	NO	x

Liveness Models	~16.8mb

Liveness Arch	bit	size	emulator	devices	compatible with	Performance
armeabi-v7a	32	~2.5mb	NO	YES	x86, arm64-v8a
arm64-v8a	64	~2.5mb	NO	YES	x	Big performance improvement
x86	32	~2.7mb	YES	YES	x
x86_64	32_64	~2.8mb	YES	NO	x

Profile – 1.16.0	Size Smart Scan	Size Smart Capture
default-gbr-profile	~23.7mb	~23.7mb
default-gbr_dl-profile	~8.7mb	~8.7mb
default-ltu-profile	~13.4mb	~5.2mb
default-fra-profile	~9.8mb	~6.4mb
default-icao-profile	??? ~5MB?

Country list with extra Smart Scan support: List

---

Solution

The best solution up till 2019 August is to add only armeabi-v7a architecture witch with better or worse performance should support all architectures, after August 2019 there will be needed armeabi-v7a(32bit) and armv8(64bit) support.

This is the most used configuration chart for GBR profiles, please use it as a guide for other regions, below this chart is showcase of setup of initial 4 showcases.

Architectures 8.3.0	Profile 1.16.0	Liveness 0.4.6.3	Size Impact (With support libraries)
armeabi-v7a	default_gbr_dl_profile	false	~20.9mb
armeabi-v7a	default_gbr_dl_profile	true	~40.3mb
armeabi-v7a, arm64-v8a	default_gbr_dl_profile	false	~31.0mb
armeabi-v7a, arm64-v8a	default_gbr_dl_profile	true	~52.9mb
armeabi-v7a	default_gbr_profile	false	~35.2mb
armeabi-v7a	default_gbr_profile	true	~54.5mb
armeabi-v7a, arm64-v8a	default_gbr_profile	false	~45.3mb
armeabi-v7a, arm64-v8a	default_gbr_profile	true	~67.1mb
armeabi-v7a	Hot-Swaping	false	~12.7mb
armeabi-v7a	Hot-Swaping	true	~32.1mb
armeabi-v7a, arm64-v8a	Hot-Swaping	false	~22.8mb
armeabi-v7a, arm64-v8a	Hot-Swaping	true	~44.6mb

Configurations to create smaller size for GBR

Configuration for minimalistic approach before August 2019:
In app gradle.properties
defaultConfig{
...
  ndk {
      abiFilters 'armeabi-v7a'
  }
...
}
In app dependancies add:
implementation 'com.idscan.ieos:mjcs:8.3.0'
implementation 'com.idscan.ides:default-gbr_dl-profile:1.16.0'
This configuration is around: ~20.9mb
---------------------------------------------------------------
After 2019:
In app gradle.properties
defaultConfig{
...
  ndk {
      abiFilters 'armeabi-v7a', "arm64-v8a"
  }
...
}
In app dependancies add:
implementation 'com.idscan.ieos:mjcs:8.3.0'
implementation 'com.idscan.ides:default-gbr_dl-profile:1.16.0'
This configuration is around: ~31.0mb
---------------------------------------------------------------
Minimal with liveness before 2019
In app gradle.properties
defaultConfig{
...
  ndk {
     abiFilters 'armeabi-v7a'
  }
...
}
In app dependancies add:
implementation 'com.idscan.ieos:mjcs:8.3.0'
implementation 'com.idscan.ides:default-gbr_dl-profile:1.16.0'
implementation 'com.idscan.idfb:liveness-core:0.4.6.3'
This configuration is around: ~43.2mb
---------------------------------------------------------------
Minimal with liveness after 2019
In app gradle.properties
defaultConfig{
...
  ndk {
     abiFilters 'armeabi-v7a', "arm64-v8a"
  }
...
}
In app dependancies add:
implementation 'com.idscan.ieos:mjcs:8.3.0'
implementation 'com.idscan.ides:default-gbr_dl-profile:1.16.0'
implementation 'com.idscan.idfb:liveness-core:0.4.6.3'
This configuration is around: ~52.9mb

Description	Link
Analyse your APK size	https://developer.android.com/studio/build/apk-analyzer
64bit requirement	https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html
Bundle packaging	https://developer.android.com/guide/app-bundle/#build