From zero to editing an android app in 4 hours

Whoohoo! I spent a fun afternoon…learning how to edit an Android app!

It all started when a coworker mentioned how nice it’d be if we had a mobile app to display our internal techcomm conference schedule. I remembered someone who’d left had developed such an app in 2011, and thought, “I know nothing about Android app development. Sounds like a fun excuse to learn something!”

And 4 hours later, I’d figured out how to get the original app developer’s source code, edit it, build it, and install the revised app it on my phone. Yay!

It’s fun looking back on my googling thought process, going from absolute zero knowledge of Android app development:

  1. what the heck’s an .apk file?
  2. how do I get the source code from the .apk file? (‘decompile…unpackage…what’s the term?’)
  3. ok, I nominally have some source code now from http://www.decompileandroid.com/.
  4. …but is that source code valid? Guess I’ll try to install a development environment, import the code, and see if it builds to find out.
  5. OK, I got Android Studio up and running after the usual Java SDK version headache….but it looks like this source code doesn’t jive at all with their expected project directory structure and file extensions.
    (http://developer.android.com/training/basics/firstapp/index.html )
  6. Could this app have been developed in Eclipse? No, I don’t think so…
  7. Floundering
  8. All right, let’s back up. This app is nothing but a bunch of HTML pages. So let’s google “How to make an HTML android app”
  9. Oh! Phonegap! I recognize that name from the source code. This app musta been developed with Phonegap.
  10. OK, let’s download Phonegap and see if we can import and build the source code
  11. Hmmrphh, I’m getting sick of all these installs…is there anything easier?
  12. Holey moley! According to this blog I can build PhoneGap apps online: http://www.tricedesigns.com/2013/05/16/phonegap-android-studio/
  13. OK…let’s make some changes to the source HTML files, upload them to Adobe PhoneGap Builder (https://build.phonegap.com), put the resulting .apk file on my phone and….
  14. YAY! My changes show up in the updated app! The upshot is, I still don’t know anything about the Android SDK, but I definitely feel I’ve honed my coding information-hunting skills.

Here’s a screenshot of one of the templates I created, so that future colleagues can easily rev the app on a yearly basis and fill in conference information for that year:

phone app

Updated:

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