Slides and links(below) from my “What’s NNNNNNNNew in Android Security” talk at Droidcon London. The video via SkillsMatter is here.

Resources:

Training and Developer Docs

Would you like me to speak at your conference or meetup? If so please get in contact.

Any questions, please drop me an email or tweet.

 

Scott MCEI had a great time at MCE conference in Warsaw, Poland in April. I’d recommend MCE as a mobile conference I attended both Android and iOS talks and there were all high quality. Also all the people I met were very friendly and spoke great english. I was introduced to Polish vodka and some tasty polish food. Thanks to the organisers for inviting me and I hope to attend again.

In this presentation I share a story of a recent Android app I developed where app security wasn’t prioritised and how I still provided a minimal level of security to protect the app’s users and developer reputation.

For those wondering why my t-shirt has a mantis shrimp on it? check out this awesome oatmeal comic.

Last week I attended the first Blackhat mobile security summit in London. It was a great chance for us to learn from security specialists.

I co-wrote this article to highlights some of our favourite and key takeaways.

  • New Android Security Rewards Program
  • State of malware on Android/mobile
  • Samsung / SwiftKey Zip Traversal Hack
  • SSL validation (or lack of) still one of most common app vulns
  • “erase everything” = not everything?
  • Windows phone 8 exploits and security faux pas

I have released a new open source library to wrap a Google Play services API called SafetyNet, which has been completely eclipsed by the recent Google IO and WWDC coverage 😉 safetynet_framed

Here’s a blog post that explains a bit about what is it and why and here’s the code on github.

I’ve also released the Sample app on the Google Play store so you can run the Safety Net test on your own device.

 

Another blog on the Intohand blog, this time “How to publish your open source library to Maven central”

Have you created a great (or at least useful) Java/Android open source project that you want to enable other developers usmavene in their projects easily? have you wondered how to publish your library to Maven central? then this is the article for you!

http://intohand.com/blog/post/how-to-publish-your-open-source-library-to-maven-central

This is an extract for a blog post I wrote for intohand. Read the full article here.

Whilst emulators provide a function, nothing beats testing on real hardware. As a developer however unless you’re near a test wall of phones, have a very large bag or lots of colleagues/friends who are all running different software versions it can be a pain. It would be ideal if you could have a single phone that acted as a Swiss Army knife.

At the end of this article using a tool called MultiRom you’ll have a Nexus 4 with the option of booting into various versions of Android.

mulitboot-image09

After last nights SWUX meetup I figured I’d share some more links on Google’s Material design that I’ve found since the last meetup I attended.

Articles:googledesign

  • An exploration in Material Design by Arthur Bodolec @ Feed.ly  – good information about the Z order and a nicely polished example.
  • We Are Living In A Material World And I Am A Material Girl – Trello – Great article that shows before and after material, and most interesting thing for me was how Trello got rid of the navigation drawer.
  • Instagram with Material Design concept by Miroslaw Stanek – some great code samples.

Examples of Material apps – there are several of these kind of sights two of the best are:

  • pttrns.com – has a new beta section showing material/lollipop Android apps. What’s great is you can filter by the type of screen you’re looking for.
  • materialup – showcases material apps and websites but also material concepts and animations

Tools

  • Material Palette, pick two of the material colours and this site will generate palette of 8 colours ready to drop in to your app/project
  • Keyline Pushing – Android  app – when running draws an keyline grid on top of apps, useful for designer/developers to validate an app is ahearence to material’s metrics and keyline spec

Yesterday, I spend a morning trying to figure out why a APK expansion file wasn’t downloading see screenshot.  This problem was specifically with and Android app/game created in the corona SDK but I guess could happen to standard Android apps. After reviewing Corona labs docs are here and various forum posts it turned out to be a simple fix. android_expansion_file

The expansion file had not successfully uploaded!! 🙁 

So triple check the expansion uploaded ok in the Google Play console! We had it fail 3 times for 2 different versions without any error messages.

Check the APK file details you should see the file size includes the expansion file size and see the filename of expansion file.

Official Google play apk expansion docs: https://developer.android.com/google/play/expansion-files.html

 

Here’s my top takeaways from this year’s Droidcon London.Lollipop Forest-578-80

  • Material design
    • Checklist
    • Papercraft (Chris Banes / Nick Butcher) slides, video
    • The new AppCompat includes the transparent assets (works Pre-L) so we can set an apps colour scheme using the appPrimaryColor and  appAccentColor. Eliminates the need for holocolors.com and adding all those extra assets, Yay!
  • Testing support library – *coming soon Q4 2014*  video
  • Continuous Integration is hot topic with several new services mentioned when talking to people.
    • Travis CI seems to be the popular CI server/solution for open source
    • Green House CI had a stand at Droidcon and having experimented with their CI solution today I’m looking forward to try on live project.

There was also a focus on Custom UI, Animation and Gradle. Specifically with regards to Gradle all the cool kids are writing their own gradle plugins rather than littering build files with custom/boilerplate logic.