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Related:

How can I determine what app put a spam shortcut on my home screen?

How can I remove unwanted app icons from the screen?

I read that one of the answers suggests installing TrustGo Ad Detector. However, I would like to know is it possible to determine which app created a launcher icon or shortcut by using the programming tools that come with the Android SDK such as adb?

Update:

I installed and ran a scan with TrustGo Ad Detector. It reported 0 apps which install shortcuts on my home screen.

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Determine which app owns an icon on my home screen

I cannot be sure that it would definitely work in your case but a way to find out the details about a shortcut is to see the relevant entries in database of your launcher app.

E.g. If the shortcut appears on my home-screen when Android's native launcher (com.android.launcher) is active, then I would proceed to see content in /data/data/com.android.launcher/databases/launcher.db. The problem is that a normal user cannot access /data/data directly without root access.

  • Since the question demands usage with adb only, I would suggest taking a backup of the launcher app and extract the .ab backup using Android Backup Extractor. Now you can access the launcher.db from it. I use DB browser for SQLite to open the .db file.

  • Users with root access can use adb pull <SOURCE> <TARGET> to fetch the relevant file. You may try SQLite Editor as well.

The location of shortcut entries may differ amongst launchers.

  • In my native Android launcher and Nova Launcher, the entries are in table favorites respectively.
  • Smart Launcher has them in the table flowerBubble.

Once you're inside the relevant table, find your shortcut under the column title and see all the corresponding column-values there.

In my findings, custom shortcuts had iconType value greater than 0, and for some custom shortcuts iconPackage and iconResource had the values as the app's name and resource whose icon is displayed.

Note that my findings are only based on aforesaid three launchers and your launcher may not reflect similar pattern.

[Is] it possible to determine which app created a launcher icon or shortcut [on my home screen]?

I have doubts reserved whether this is really possible. As it is clear by now, the home-screen shortcuts are (unlike traditional GNU/Linux) not symlinks since their structure varies from launcher to launcher, and usually cannot be called or executed unless the launcher itself is active (possibly because the parent launcher can only know whether the entry should be treated as shortcut or not).

Based on my findings, my answer would be no, you cannot determine which app created the shortcut on home-screen.

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