19 Mar

Android: Not enough memory for apps? Move non-moveable apps to sd card!

Insufficient storage for Android apps? Move apps which you think are non-movable to your SD card (like Google Drive, YouTube, Maps, some keyboards like Swype + Dragon) and save space on your internal storage. To do this, you will need to download Android SDK Tools and execute only two commands in Command Line / Shell console. Read More

20 Lut

Android with Eclipse: Conversion to Dalvik format failed with error 1 [solved]

During compiling some Android projects using Eclipse I had regular problems with exporting signed apk file. It is a known problem and everyone has his own solution to fix the issue. For my projects where I included many apk libs or jar files (Actionbarsherlock, gson, etc…) every export was finished with result:

Eclipse Android dalvik format failed with error

Conversion to Dalvik format failed with error 1

or my Eclipse crashed or the package was corrupted 🙂 It was very frustrating. It was not problem with Proguard. The solution is very simple. Before you start to create signed apk file you should:

  • go to Project menu -> disable Build Automatically…
  • after that Project -> Clean.. and clean all yours projects you use to create your apk ( uncheck Start a build immediately)

eclipse.clean_.android.without.recompile

  • and now right click on the project -> Android tools -> Export signed application package…

Works for me on my workstations with Windows. And you still have problems with that?

22 Mar

Scanning and generating barcodes using ZXING library on Android

logoThe most popular all-in-one codes library for Android is zxing. Everyone used a Barcode scanner app based on this lib. But this library provides also ability to generate codes. In this example I show you how scan 1D code – Code 128. Code 128 is a very popular type of 1D code. After scanning, we obtain scanned information and… encode again to show on Android device for further scanning. Let’s go!

What we need: