XAPK Support

[ArnoldSmith86]

What details do you need?

[ImranR98]

I'm able to install this with no issue. Could you try installing it manually without Obtainium?

[ImranR98]

Actually try it with this new release first: https://github.com/ImranR98/Obtainium/releases/tag/v0.13.18-beta

[ArnoldSmith86]

With new release:

[ArnoldSmith86]

After uninstalling first:

[ArnoldSmith86]

Installing using https://f-droid.org/en/packages/com.smartpack.packagemanager/ worked fine:

Not sure how else to install XAPKs.

[1xFF]

I wonder if that config apk is actually being installed by that app

[ArnoldSmith86]

It lets me select what to install. I have no idea how all that xapk stuff works, though.

[ArnoldSmith86]

Not sure if this helps but:

:/data/local/tmp # cp /storage/emulated/0/Android/data/dev.imranr.obtainium/cache/com.agilexrobotics-523288793.xapk-dir/*apk .
:/data/local/tmp # ls -l
total 71180
-rw-r----- 1 root root      34735574 2023-08-16 10:39 com.agilexrobotics.apk
-rw-r----- 1 root root         45465 2023-08-16 10:39 config.ar.apk
-rw-r----- 1 root root      35960961 2023-08-16 10:39 config.arm64_v8a.apk
-rw-r----- 1 root root        192921 2023-08-16 10:39 config.de.apk
-rw-r----- 1 root root        225689 2023-08-16 10:39 config.en.apk
-rw-r----- 1 root root        323993 2023-08-16 10:39 config.es.apk
-rw-r----- 1 root root        201113 2023-08-16 10:39 config.fr.apk
-rw-r----- 1 root root         74137 2023-08-16 10:39 config.hi.apk
-rw-r----- 1 root root         41369 2023-08-16 10:39 config.in.apk
-rw-r----- 1 root root        168345 2023-08-16 10:39 config.it.apk
-rw-r----- 1 root root         78233 2023-08-16 10:39 config.ja.apk
-rw-r----- 1 root root         78233 2023-08-16 10:39 config.ko.apk
-rw-r----- 1 root root         37273 2023-08-16 10:39 config.my.apk
-rw-r----- 1 root root         78233 2023-08-16 10:39 config.pt.apk
-rw-r----- 1 root root         82329 2023-08-16 10:39 config.ru.apk
-rw-r----- 1 root root         33177 2023-08-16 10:39 config.th.apk
-rw-r----- 1 root root         33177 2023-08-16 10:39 config.tr.apk
-rw-r----- 1 root root         37273 2023-08-16 10:39 config.vi.apk
-rw-rw---- 1 root everybody   124926 2023-08-16 10:39 config.xhdpi.apk
-rw-r----- 1 root root        184729 2023-08-16 10:39 config.zh.apk
:/data/local/tmp # pm install *apk
Success

(Without moving to the temp dir, pm install told me that it couldn't access the file. Note that I can install other apps using Obtainium just fine. I'm not sure if maybe all xapk apps fail, though.)

[zen0bit]

[1xFF]

@zen0bit That is caused by using a link with the mobile subdomain m.apkpure.com
It should just be apkpure.com
#543

[YOGIAOGI]

When I'm using the link without subdomain m, I get not found message when I want to add the app

[1xFF]

What's the full link you're trying to add?

[YOGIAOGI]

That's the link.

https://apkpure.com/pl/douyin/com.ss.android.ugc.aweme

I found out that, when I tried to add call of duty warzone mobile, it worked, but download process was stuck at 0%

[ImranR98]

It's the /pl/ - will fix in the next release (not the main issue though).

[ArnoldSmith86]

This got a lot better with recent releases BTW. I don't get errors anymore but every now and then an update renders an app useless. It's still installed but apparently missing some of its split apks. It's still installed but usually doesn't get past its splash screen.

Most of the time updates work fine now though.

[ArnoldSmith86]

https://apkpure.com/discord-talk-chat-hang-out/com.discord 210.10 broke my app again.

Fixed by manually downloading apk from https://www.apkmirror.com/apk/discord-inc/discord-chat-for-gamers/discord-chat-for-gamers-210-10-stable-release/discord-talk-chat-hang-out-210-10-stable-android-apk-download/ (apkpure.com seems to be down) to /data/local/tmp and using pm install:

:/data/local/tmp # unzip /sdcard/Download/com.discord_210.10_-_Stable-210010_4arch_4dpi_20lang_4dd1f8eb07d9593d231c151823f28841_apk>
Archive:  /sdcard/Download/com.discord_210.10_-_Stable-210010_4arch_4dpi_20lang_4dd1f8eb07d9593d231c151823f28841_apkmirror.com.apkm
  inflating: split_config.en.apk
  [...]
  inflating: split_config.arm64_v8a.apk
:/data/local/tmp # ls -l
total 295916
-rw-r--r-- 1 root root       58 2024-01-05 13:56 APKM_installer.url
drwxr-xr-x 2 root root     4096 2024-01-05 13:56 META-INF
-rw-r--r-- 1 root root 63800600 2024-01-05 13:56 base.apk
-rw-r--r-- 1 root root     7656 2024-01-05 13:54 discord
-rw-r--r-- 1 root root     8976 2024-01-05 13:56 icon.png
-rw-r--r-- 1 root root     1107 2024-01-05 13:56 info.json
-rw-r--r-- 1 root root    29081 2024-01-05 13:56 split_config.ar.apk
-rw-r--r-- 1 root root 48818414 2024-01-05 13:56 split_config.arm64_v8a.apk
-rw-r--r-- 1 root root 34359684 2024-01-05 13:56 split_config.armeabi_v7a.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.bn.apk
-rw-r--r-- 1 root root    29081 2024-01-05 13:56 split_config.de.apk
-rw-r--r-- 1 root root    49561 2024-01-05 13:56 split_config.en.apk
-rw-r--r-- 1 root root    37273 2024-01-05 13:56 split_config.es.apk
-rw-r--r-- 1 root root    37273 2024-01-05 13:56 split_config.fr.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.gu.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.hi.apk
-rw-r--r-- 1 root root    29081 2024-01-05 13:56 split_config.in.apk
-rw-r--r-- 1 root root    29081 2024-01-05 13:56 split_config.it.apk
-rw-r--r-- 1 root root    29081 2024-01-05 13:56 split_config.ja.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.kn.apk
-rw-r--r-- 1 root root  9052915 2024-01-05 13:56 split_config.mdpi.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.mr.apk
-rw-r--r-- 1 root root    29081 2024-01-05 13:56 split_config.ms.apk
-rw-r--r-- 1 root root    29081 2024-01-05 13:56 split_config.nl.apk
-rw-r--r-- 1 root root    37273 2024-01-05 13:56 split_config.pt.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.ru.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.ta.apk
-rw-r--r-- 1 root root    33177 2024-01-05 13:56 split_config.te.apk
-rw-r--r-- 1 root root 51832620 2024-01-05 13:56 split_config.x86.apk
-rw-r--r-- 1 root root 54024205 2024-01-05 13:56 split_config.x86_64.apk
-rw-r--r-- 1 root root 10245096 2024-01-05 13:56 split_config.xhdpi.apk
-rw-r--r-- 1 root root 14907795 2024-01-05 13:56 split_config.xxhdpi.apk
-rw-r--r-- 1 root root 15034840 2024-01-05 13:56 split_config.xxxhdpi.apk
-rw-r--r-- 1 root root    45465 2024-01-05 13:56 split_config.zh.apk
:/data/local/tmp # rm split_config.armeabi_v7a.apk split_config.x86.apk split_config.x86_64.apk
:/data/local/tmp # pm install *apk
Success

[AGuyNamedJens]

Can confirm, trying to install the MediaMarkt Deutschland and Saturn apps, crash immediately on start..

[Senliast]

I tried with a few apps with apks format and even on different devices and it doesn't work for any such app. It always says "unable to parse apk (incompatible or partial download)". For example, https://apkpure.net/de/netflix/com.netflix.mediaclient .

[Senliast]

And when installing APKs from uptodown for example, the same happens. So i think Obtainium has generally a problem with installing APKs / XAPK.

[c3t1nn]

can confrim same goes for discord xapk from uptodown

[qwyop]

https://apkpure.com/how-to/how-to-install-xapk-apk
says XAPK files cannot be installed with the phone's default installer, requiring installation of APKPure's XAPK Installer (or others listed in https://fileinfo.com/extension/xapk)

I think XAPKs don't currently work in Obtainium, as the APKPure app I was using changed from APK to XAPK in the latest version (https://apkpure.com/エイリアンのたまご-放置系バトル育成rpgゲームアプリ/com.paondp.game2.padp.etg/download/1.35.4 vs https://apkpure.com/エイリアンのたまご-放置系バトル育成rpgゲームアプリ/com.paondp.game2.padp.etg/download/1.35.3), and gives me this error when attempting to update to it

[DarkCrypt]

@ImranR98
Not being able to install XAPKs appears to be a continuously growing issue. Some don't install because of incomplete files while others install perfectly outside of Obtainium. Of course there's no fix for incomplete files but there should still be a way for Obtainium to handle installing complete XAPKs.

So far the only "working" solution I found is almost 2yrs old which could be irrelevant now. Still be worth checking out: https://stackoverflow.com/a/75118149.

Another option could be to add a selector within Obtainium's Settings for users to choose a different APK/XAPK installer instead of the default installer. There would be plenty to choose from if this is possible.

[jm355]

https://github.com/SmartPack/PackageManager handles xapks apparently, that may also be a good reference, or maybe the dev @sunilpaulmathew may be willing to help?

Edit: looks like package manager has you manually select the apk files within the xapk before installing, instead of automatically selecting the right ones for your device architecture, language, and dpi. The stackoverflow one doesn't seem to try to filter anything out of the xapk, it just installs everything in it. But, it looks like it'd be relatively easy to add filtering as long as the device dpi architecture, and enabled languages can be retrieved

[jm355]

Obtainium/lib/providers/apps_provider.dart

Line 511 in 4caae51

// Assume XAPK

looks like the xapk contents might be getting loaded here, so maybe this is where to add filtering to only get the apks in the xapk that the device needs, if filtering is enabled?

[jm355]

https://garmin-explore.en.uptodown.com/android/download latest version updated with no problem

[DarkCrypt]

https://garmin-explore.en.uptodown.com/android/download latest version updated with no problem

The latest version is an APK.

---

So far I've tried 6 different apps that can install XAPKs. APKPure, Apktool M, App Manager, MiXplorer, Package Manager, and Uptodown.

APKPure, MiXplorer, and Uptodown installs the entire XAPK. (No selection provided)

Apktool M and App Manager automatically selects the device architecture, language, and dpi.

Package Manager requires manual selection of the device architecture, language, and dpi as stated above. (The app also doesn't show up when selecting the XAPK to install from file manager)

*I'm not sure how difficult it is to cross reference Dart and Java but App Manager is probably the best option. App Manager is also where I got the idea for users to choose a different APK/XAPK installer instead of the default installer.

[DarkCrypt]

I just noticed there's multiple issues requesting a different APK installer, mostly for App Manager.

Discussions about this should be moved to issue #517.

This issue also explains that this was possible in previous versions of Obtainium and why it's not now.

[1xFF]

The issue here seems to be that Obtainium does not support split apks, android_package_installer does not have any method to do so. The native PackageInstaller will likely have to be used to properly stage the installation.

[ImranR98]

Minor update: Took some time to look into this. Apparently it's not enough to just unzip an XAPK and try to install each APK you find inside (which is what Obtainium tries to do). Instead you have to figure out which APKs to install by reading the JSON that's included in the XAPK, then somehow "commit" them to the installer session, then tell it to install (you can't install each one separately).

The PackageManager app does something similar here: SmartPack/PackageManager@18db3ec#diff-342421a6cbed575b8f99405be8654a345981d7aa0a5231a8645bcd62ca3a3047R322

Obtainium currently uses a fork of the android_package_installer Flutter plugin to do installs. It's probably possible to add XAPK support to it (somewhere here but I haven't tried yet.

[1xFF]

The original implementation I saw that tipped me off was from SAI:
https://github.com/Aefyr/SAI/blob/55505d231b1390e824d1cc0c8f4fa35fd4677105/app/src/main/java/com/aefyr/sai/installer/rootless/RootlessSAIPackageInstaller.java#L88

Staging the APK's like that does not seem too difficult, but I can't find much about the JSON files you are refering too.
This site states that its called manifest.json, yet that doesn't appear in the discord XAPK from uptodown that a c3t1nn tried downloading.

[ImranR98]

Yes, I'm referring to manifest.json which does appear in the Garmin Explore XAPK. I'm guessing that if the file is not there, all APKs are supposed to be installed.

Edit: I was wrong - the Garmin XAPK doesn't have a manifest JSON either. It looks like files from Uptodown don't have it but files from APKPure do.

[jm355]

In the absence of a manifest.json, it may make sense to try to filter the architecture, dpi, and language by filename, or have an option to do so

[ImranR98]

I have updated the plugin to support multiple APKs in one session. The latest release of Obtainium uses this to just install everything inside the XAPK. This is a very quick and dirty approach which is not very efficient and will probably fail in many cases (so I'm leaving this issue open), but it does work for Discord (from APKPure) and Garmin Explore (from Uptodown) at least on my device.

[ImranR98]

Improvements to make:

• Figure out what the base APK is for sources where we don't have an app ID in advance.
• Figure out what non-base APKs are needed (based on device architecture, language, and screen resolution) and only install those.

Please report any cases where installation still fails.

[ArnoldSmith86]

For https://discord-chat-for-gamers.en.uptodown.com/android the last version Obtanium was able to install was 244.13. Not sure if I had to fix that one afterwards but since then it didn't even try. It says:

2024-11-24 00:08:19.626: info: Could not install APKs from XAPK: The APK could not be parsed (incompatible or partial download)
2024-11-24 00:08:19.627: error: The APK could not be parsed (incompatible or partial download) [Discord] [Discord]

That test was with Obtainium 1.1.32.

LineageOS 19 (Android 12) on OnePlus 5T without Play services.

[ImranR98]

Hmm, the Discord XAPK from Uptodown has no manifest JSON, nor a base com.discord.apk file. Instead it has a large number of APKs with seemingly random names. Not sure how to parse that.

[ArnoldSmith86]

When in doubt, just install all the things? I don't know. It's pretty wild to me how inconsistent all of this is (Android packaging, not Obtanium)...

[jm355]

Weird change: https://symfonium.en.uptodown.com/android/download has a .nov 25, 2024 extension. When I renamed it to .xapk it opened and installed in app manager fine. Looks like maybe they forgot to add .xapk to the extension? But obtainium failed to install it

[1xFF]

I've partially reversed engineered how SAI handles these XAPK's. The split APKs from uptodown have to be parsed by their AndroidManifest.xml.
Because the manifest is in the AXML format it needs to be decoded, SAI does this my using this AOSP library at this part of the code
Once you have the manifest, you can figure out what the APK is for with the split and android:splitTypes keys.

For example, discords f4e7332184f7c31e8ad65489624eeeaf7a1f5410c4a8dc41f51517914bfbec41.apk is:

<?xml version="1.0" encoding="utf-8" standalone="no"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" android:splitTypes="base__density" package="com.discord" split="config.hdpi">
    <application android:extractNativeLibs="false" android:hasCode="false">
        <meta-data android:name="com.android.vending.derived.apk.id" android:value="2"/>
    </application>
</manifest>

Unfortunately when working with flutter plugins, every single of my IDE's has an issue providing even the most basic of language support. So I'm not sure when or even if I could provide a PR

[ImranR98]

@1xFF I use VSCodium with the Flutter/Dart plugins from 'Dart Code' if that helps.