Tuesday, 31 May 2011

OzALT.NET MonoDroid Presentation

Slides from tonight's OzALT.NET '20 minute' presentation on Mono-for-Android. I didn't actually make it through all the slides, but we got through a few demos including this simple HelloWorldActivity.cs example and the Restaurant Guide demo.

Also enjoyed @thomasjo's pres on CoffeeScript and Joshua Roth talking about NBuilder.

Friday, 27 May 2011

Mobile UI Design ramblings...

Mobile UI design has come up a couple of times the past few days (as has Xamarin),
  • I'm looking to port an existing iOS app to Android - how 'same' should it look?
  • Nielsen Norman Group released their latest Useability of iPad Apps and Websites report
  • Ongoing discussion with @russaus
...so seemed like a good time to make some notes (and for UI, read UX and IA as well :)

Porting apps...
Porting apps from one platform to another (iPhone to Android, iPad to Android, or to Windows Phone, or from 'web', etc) always brings with it a challenge to make each version feel 'native' and embrace the platform's UI idioms & metaphors (while simultaneously re-using as much code as possible and keeping your application consistent across each). This can be seen in previous posts on the MIX11 app and the Restaurant Guide sample being ported to iPhone, Android and Windows Phone 7. Should the new Android app be a 'UI clone' of the iOS version? Should it be redesigned from scratch, removing any traces of iOS-ness? The answer is probably somewhere in between, being guided by your usability and branding goals, and by feedback from your users.
UPDATE: some thoughts on Why Are Android Apps Ugly? :-)

"Usability of iPad Apps and Websites": 2 reports
Coincidentally, while planning the UI for the Android app, Nielson Norman Group released an updated Usability Report for iPad Apps and Websites. The new edition (and the previous) are great reads (free to download) - some points will seem obvious, some will trigger "a-ha" moments and other's you'll disagree with; but overall you'll probably find it worthwhile to download them both.

There are a couple of great websites worth looking at when you are doing UI design
  • mobile-patterns.com is a cool collection of screenshots from iPhone apps grouped into 'UX categories' like User Profiles and Lists. My favorite is Empty Data Sets - so often overlooked! (by @mari18)
  • ui-patterns.com is a more general collection (ie. not mobile) with categories like Getting Input and Navigation. It is a LOT deeper in terms of content (articles/discussion as well as screenshots) and likely to be thought-provoking no matter what platform you're working on. (follow @uipatternscom
  • UPDATE: Windows Phone 7 for Designers — Cheat Sheet kinda similar to the mobile-patterns site above but for Windows Phone. Poster-layout for easy printing/reference (by @teppo).

...and what about that whole MonoTouch/MonoDroid 'thing'?
Novell (Attachmate) says (my underline)
Focusing on what matters most to customers is the key to our innovation strategy and will drive the growth of our business. This has meant reductions in certain areas, such as Mono. However, Mono remains part of the SUSE business and should customer demand for Mono products accelerate, our development efforts will rapidly respond. Regardless, we will continue to provide maintenance and support for all Mono products – MonoTouch, Mono for Android, Mono Tools for Visual Studio and SUSE Linux Enterprise Mono Extension.
But it sounds disingenuous considering they have already sacked the entire team... and WTF does "should...demand...accelerate" mean? How is demand going to grow when they've killed any chance of enhancing the product and do not market it?? If they were truly "Focusing on what matters most to customers" they wouldn't have sacked the engineers in the first place, or else should have released/sold/transferred the Touch/Droid IP to Xamarin where it has some hope of a future (IMHO, anyway). </2centsworth>

Also, in related news, @migueldeicaza announced that Nat Friedman has joined Xamarin as CEO. Nat previously worked with Miguel as a co-founder of Ximian.

p.s. I'm *guessing* that we will be saying goodbye to the MonoTouch and Mono for Android product names since Novell probably owns them... wondering what I should use for Twitter hashtags now to replace #monotouch and #monodroid? Something with an 'X'? :)

Tuesday, 17 May 2011

MonoTouch/MonoDroid and Xamarin - what now?

If you are in the mono community then you'd have to be living under a rock not to have read that Novell was purchased by Attachmate then (first) heard the rumors that Attachmate Lets US Mono Developers Go and (second) seen Miguel's confirmation/announcement of the creation of Xamarin.

What I think this means is:
  • Mono should be fine. It has always been open-source (see github.com/mono) and receives contributions from a variety or people regardless of who they work for.
  • The MonoTouch and Mono for Android (aka MonoDroid) products published by Novell will effectively stop being supported "as of now". This is based on the fact that none of the devs work there any more.
  • Attachmate hasn't announced any plans for those products - even whether they'll continue to be available for sale (along with the associated activation servers). It's impossible to predict what will happen here... various people are trying to get answers from Novell/Attachmate. Personally, even if Attachmate attempted to continue selling/supporting the products I would choose not to be their customer as soon as alternatives are available.
  • Miguel and the team who built MonoTouch and MonoDroid have publicly announced they're working on comparable/compatible products to be sold by Xamarin (their new company). These new products are 3-4 months away, betas first prior to a real release. They've done it before, they can do it again!
Lots of people (myself included) have invested plenty of time and money purchasing, learning and using MonoTouch and MonoDroid. I even helped write a MonoTouch book (and some guys have been busy with a MonoDroid one too). We are all collectively upset, disappointed and angry (imagine how the devs themselves feel).

All of this uncertainty has provoked a number of reactions, among them suggestions that all the work done on MonoTouch/MonoDroid projects to-date has been wasted or that people should start learning the native SDKs for iOS and Android instead of committing to the Mono alternatives.

Learning the native SDKs has always been an option for anyone interested in mobile dev, but who wants to go to all that effort!? The value proposition for Mono* remains: .NET developers can leverage their existing language and framework knowledge AND code can be written once and re-used across three platforms (iOS, Android and Windows Phone). Those advantages continue to be true - the two products are definitely useable right now (MonoTouch obviously more mature than MonoDroid) - and if you care to take Miguel at his word they have a 'compatible' future. So what to do in the next 3 or 4 months...

I already have a MonoTouch/MonoDroid app written and published (or almost published)
Keep going! If everything is working for you right now, why change? In future you "might" need to port your work to native IF Xamarin's products are late/don't work. But if you start porting now and spend three months doing the conversion and Xamarin succeeds then you'll have wasted a lot of effort! What's more, your existing codebase will form an excellent 'regression test' for the Xamarin previews/betas... make sure you sign up at xamarin.com and participate! Your knowledge and experience with the existing products will be very helpful testing the new bits.

If you are really pessimistic you can still continue on this path - but maybe allocate some of your dev time learning the native SDKs and possibly prototype/porting some of your code. Don't do all of it - just get comfortable with the fact that it's possible while waiting to see how Xamarin develops.

I have purchased MonoTouch/MonoDroid and was planning to use them in future
Why not give them a try anyway? There are multiple benefits of using Mono*, including learning the native SDK APIs from the comfort of a language you know and also being productive more quickly. Think of it like prototyping - you get something working quickly and along the way learn a lot that can be re-used (you WILL learn the iOS/Android APIs).

If your app is single-platform I can imagine this decision might be a close call (and perhaps you should just learn Objective-C or Java) BUT if you are planning a cross-platform solution then you are still going to save time and effort with Mono* and code-sharing. One obvious risk would be the possibility of hitting something that isn't supported/doesn't work in Mono* yet - so do your research.

On the other hand, imagine spending the next few months learning BOTH Objective-C and Java, and producing two incompatible codebases for your app, only to discover that Xamarin rocks!

I'm a consultant and I've recommended MonoTouch/MonoDroid to clients
Ouch. This is bound to 'look bad' since the less your clients understand about the risk/reward of a tool like Mono*, the more they are going think you've stuffed up. In reality, though, the above points still apply - you can offer them the same bet: switch tools now and potentially waste some time or risk 'maybe' porting at a later time but take advantage of the benefits Mono* provides now... after all you recommended Mono* for a reason and many of those reasons are still valid.

I have done this myself - so I know how uncomfortable it feels.

I am interested in MonoTouch or MonoDroid but haven't purchased yet
This is a tough one. I'm not sure that the Novell Shopping Cart or the Activation Server are even working at the moment (activation behind an authenticating proxy is not supported at all). Even if they were, I'm not sure I'd want to give Attachmate my money. Maybe this will become clearer in the coming days/weeks.
You can definitely try out the 'free trial' (emulator only) editions but for a real project that you want to publish on AppStore/Marketplace soon I'm afraid you might need to consider learning the native SDKs or waiting a while... :-(

In conclusion...
I'll be the first to admit this is a very "glass half-full" point-of-view. Lots of bad s**t could happen: support issues with the current products that can't be resolved, legal issues with Attachmate, product delays from Xamarin, unexpected costs or incompatibilities for the new stuff, etc, etc, etc.

At the end of the day, you'll make a decision based on your risk-averse-ness (triple word score!) regardless of my rainbows and unicorns. Just keep in mind that the apparent 'end of life' of the current MonoTouch/MonoDroid products, while sad, is not (yet) the end of the world. In some ways, you can best support Xamarin by continuing to use the existing tools so that you've got something to migrate to their new stuff.

Make sure you've got some peanuts and a towel, and above all DON'T PANIC.

Saturday, 7 May 2011

Mobile Camp Oz

Went along to Mobile Camp Oz today, saw some great presentations from @dglover, Scott Vandonkelaar and @markaufflick as well as an interesting keynote by Darren Burden of Fairfax Media. Thanks to the speakers for their time and also to everyone that came along to watch (finally special thanks to Nick for organising and convincing me to come along!).

As for my pres, here are the slides:
and you'll find example source at github.com/conceptdev. The pres was a bit slide-heavy... will do more live-code/examples next time.

Also check out these past posts:
Finally - check out the result of Scott's presentation on the Android Market Mobile Camp Oz!