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How to sign APKs

To test your app on a device you must export an application installer package (APK). The package MUST be digitally signed, otherwise your android phone/tablet will not let you install it.

You can use Google's debug Key and Keystore:

  • The keyring is located at /home/user/.android/debug.keystore
  • Hint: Go to window → preferences → android → build, you can see the keyring location there
  • Keystore password is 'android',
  • Key password is 'android'
  • Key alias is “androiddebugkey”

To export the signed application package, in Eclipse right click on the project, select 'android tools' and 'Export signed package'