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Useful Android Development/ Testing Tools powered by troido

This week I attended the Mobile Developer Conference in Hamburg/ Germany. In the talk from Miroslav Simudvarac (www.troido.de) he presented some really useful Android Development Tools. I really like the tools and I think they are really helpful for Android Developers or Quality Assurance Experts.

The first tool is the so called re-signer developed by Miroslav Simudvarac. If you want to test e.g. with Robotium against an existing APK file and you don’t have access to the source code, you need to resign the APK file with your own signature. In a previous post I explained why you have to change the signature and how to do this on a commandline. With the re-signer tool you are now able to resign APK files over a graphical user interface. All you need ist the re-sign.jar file and an installed Android SDK. The tool can be downloaded from here. Download the jar file and execute it with a double click or from commandline with java -jar re-sign.jar. The following user interface should show up.


To resign your APK file, just Drag & Drop the file in the window. If the resigning was successful a popup window will show up and give you the information about the starting activity and the package name of the APK file that you need for your Robotium Manifest.xml file. Thats it! Now you should be able to resign APK files even faster!

The second tool is the so called Cert-Checker. Read more

How to re-sign a Android apk file for testing

In the last days I got some questions about how to resign the apk file you want to test. And here is the answer. First some basic about the signatures in Android development! A signature is needed to identify the author of the Android application. A signature mostly contains information like:

  • First name
  • Last name
  • Name of the organization
  • City
  • State
  • Country Code

For more information please have a look at the Android SDK developer guide http://developer.android.com/guide/publishing/app-signing.html
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