April Fool’s Day from computer gurus

April Fool’s Day has all the characteristics of a festival to celebrate the end of winter and the return of spring. For one day forms of behavior that are normally not allowed become acceptable, and yet the disorder is bounded within a strict timeframe. Traditionally, no pranks are supposed to be played after 12 o’clock noon of April the first. Herewith I have collected some stories and fake news from information technology. Continue reading →

Android projects: icon sizes and application configuration with AndroidManifest.xml

An iPhone programmer’s question: I have to design an app for both iPhone and Android platforms. Where’s the info.plist file and what icons and launch images do I have to include in an Android apps? What are the image sizes? I can’t find definitions. Thank you. Continue reading →

How to build and submit iPhone app to AppStore with Xcode 4

Question: Xcode 4 has made my life miserable. I am very familiar with Xcode 3.2.6 and have built and submitted several applications to the iTunes but now I am stopped at a very basic task. How to build the release version, find and compress the built iPhone bundle, and submit it to the AppStore with this X#2&% ? Continue reading →

“xxx does not contain a single–bundle application or contains multiple products” archive error in Xcode 4 project

Question: I am trying to build an iPhone application for distribution on iTunes app store. I figured out how to build a Release version (ie. Archive) but “xxxxx does not contain a single–bundle application or contains multiple products. Please select another archive, or adjust your scheme to create a single–bundle application.” error pops up during Validation. Project environment: Xcode 4 project, Mac Book Pro, OS X 10.6.6. Project builds with no error and proper provisioning file is used. Two custom static libraries are built with no errors and linked perfectly. Continue reading →

Xcode 4 upgrade transition – how to select targets for resource files

Question: Since upgrading to Xcode 4, I can’t find several basic and useful options. For example in a multi target project how to select which Target a resource file belongs to? Earlier we hit the Get Info and voila. Now it has disappeared. My iPhone project is at halt and I am considering going back to Xcode 3.2.6. Continue reading →

After Xcode 4 upgrade ‘No architectures to compile for’ building error occures

Question: I am also upgrading my iPhone projects to Xcode 4 but getting “No architectures to compile for (ARCHS=i386, VALID_ARCHS=armv6 armv7)” error message. I am running Xcode on OS X 10.6. Error occurs both in Debug and Release mode. I am full of new warnings. The same code builds without warnings in Xcode 3.2. Continue reading →

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