Generate apk for only one Tablet

Die Lösung heißt DeviceId

import android.provider.Settings.Secure;


private String android_id = Secure.getString(getContext().getContentResolver(),Secure.ANDROID_ID);

Added in API level 3

A 64-bit number (as a hex string) that is randomly generated when the user first sets up the device and should remain constant for the lifetime of the user's device. The value may change if a factory reset is performed on the device.

Note: When a device has multiple users (available on certain devices running Android 4.2 or higher), each user appears as a completely separate device, so the ANDROID_ID value is unique to each user.

Michael has already described how it works

is it important to recognize this during the installation? You could let other devices install this app, but it should crash when it's starting on other devices than your target device.

mh then I think it's not possible by app development. You should take the source code of a custom rom and change it the way you need. Maybe it's possible to add a mechanism to that custom rom that checks a custom tag in the manifest file of an application.

Vielleicht kannst du das ganze auch splitten?

Zunächst nur eine Mini-App, die der User installiert und welche die Android_ID prüft. Wenn die Prüfung erfolgreich ist, startet die Miniapp einen Service, der die "richtige" App nachlädt.

Das funktioniert aber nur wenn er die kontrolle über das Gerät hat, beziehungsweise dem Besitzer vorschreiben kann, dass es in den Android Einstellungen aktiviert sein muss. Wobei das garnicht so abwägig wäre, da er ja auch irgendeine Geräteidentifikationsnummer für die App braucht.