Welcome to my spaghetti

  • Create /app/src/main/java/com/arn/scrobble/Tokens.kt 
    package com.arn.scrobble
object Tokens {
  const val LAST_KEY = "" // https://www.last.fm/api/account/create
  const val LAST_SECRET = ""
  const val ACR_HOST = "" // https://console.acrcloud.com/
  const val ACR_KEY = ""
  const val ACR_SECRET = ""
  // https://developer.spotify.com/dashboard/
  const val SPOTIFY_REFRESH_TOKEN = "<base64 of spotify client id>:<base64 of spotify client secret>"
  // returns {"code": 0, "message": "valid"} if the license is valid, this spec is subject to change
  const val LICENSE_CHECKING_SERVER = "https://"
  // used to verify the license
  const val LICENSE_PUBLIC_KEY_BASE64 = ""
  const val APK_SIGNATURE = ""
  const val PLAY_BILLING_PUBLIC_KEY_BASE64 = ""
  const val EMBEDDED_SERVER_KEYSTORE_PASSWORD = "" // password for the embedded https server BKS keystore, used for importing settings over local network
}

  • Remove or comment out the lines below // remove if not needed in app/build.gradle.kts and /build.gradle.kts

  • Create app/version.txt and put a positive integer in it. This will be your app version code. The version name will be derived from this.

  • Create a Firebase project for Crashlytics and add google-services.json. See https://firebase.google.com/docs/android/setup

  • Create a BKS keystore for the embedded https server with the password EMBEDDED_SERVER_KEYSTORE_PASSWORD and alias selfsigned. Put it in /app/src/main/res/raw/embedded_server_bks.bks

  • Obtain now playing notification strings and their translations by decompiling the resources of the Android System Intelligence apk with ApkTool and then running py-scripts/np-strings-extract.py on them.

Usage: python ./np-strings-extract.py <decompiled-dir> song_format_string np for scrobbling Pixel Now Playing.

Alternatively, you can use this as a stub in strings.xml:

<string name="song_format_string">%1$s by %2$s</string>
  • If you want to generate the optional baseline profile for the app, which can improve its startup time, create a file /baselineprofile/src/main/java/com/arn/scrobble/baselineprofile/Secrets.kt: 
    object Secrets {
  const val type = "lastfm"
  const val username = "<lastfmUsername>"
  const val sessionKey = "<lastfmSessionKey>"
}

sessionKey can be obtained by logging in to LastFM with a debug build of this app and tapping on the “Copy last.fm session key” in the settings.