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5 Myths of Using Mobile SDKs that Mobile Developers Must Know

April 19, 2017 2:11 PM

You know how some things were created to make our lives easier? The same has happened in the mobile development industry with SDKs. The growing use of SDKs has certainly made developers’ lives easier. They don’t need to spend time writing code and developing back-end stability for functionalities unrelated to the core of their apps.

According to our latest SDK trends report, a single app implements 17.6 SDKs on average, which means that mobile SDKs are popular today more than ever. But do we know all there is to know about the mobile SDK industry? Do we understand the potential and correctly estimate the risks?

While talking with many of our clients, prospects, and industry professionals, I noticed some major misconceptions regarding the use of SDKs.

Unfortunately having these misconceptions is a recipe for disaster – if you don’t know what some of your app’s code does, you could be subject to collateral damage. Therefore, I thought it was necessary to write this post and break some of these myths.

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10 Mobile App Development Trends to Look Out for in 2017

March 23, 2017 1:58 PM

Gladly, our mobile app industry is continuing to grow at a fast pace.

In fact, App Annie’s projection is that by 2020, mobile app store revenue will exceed $100 billion globally. The latest annual Mobility Report from Ericsson reveals that there will be 6.1 billion Smartphone users globally by 2020 and as for 2017, Gartner’s prediction is that by the end of the year “mobile apps will be downloaded more than 268 billion times, generating revenue of more than $77 billion and making apps one of the most popular computing tools for users across the globe.”

I remember, way back in 2008 (or maybe even a bit earlier than that…), I had to do some reading in order to understand the concept behind a device that is ‘all apps’. This was less than 10 years ago. It makes me wonder, what will we experience 10 years from now?

Mobile App Forecast by AppAnnie | SafeDK Blog
App Annie’s report projects a growth of $100B by 2020

Mobile App Store Revenue Worldwide by Gartner | SafeDK
Gartner predict 2017 will be see an even bigger growth in Mobile Apps revenue

Obviously, the mobile app development world is growing and changing rapidly, catering to the growth with some exciting trends. I’ve chosen to share a few of them with you today (yes, there are more. Talk to me if you think I should add others in as well).
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[Infographics] The State of Mobile SDKs at the Start of 2017

March 8, 2017 4:07 PM

During the course of 2016, we’ve published two reports uncovering the state of mobile SDKs: one in April and on in October. We explored which SDK categories are most popular, exposed which SDKs are leading their category and even compared global and local trends. And judging by last year, we knew 2017 would be as interesting to explore, if not more.

We’ve just published a new report, looking at January 2017. The data comes from a thorough analysis of over 100,000 Android apps, featured in various Google Play stores around the world and available to download for free.  Together, these apps integrate hundreds of SDKs, from the top industry players to new players hoping to take the mobile world by storm.

And let us tell you right now that looking at the January data, and comparing it to the data from our previous reports (and the months in between), we’ve spotted some truly fascinating trends…

Main Highlights

Please note that we are sharing here a partial selection of the findings that are presented in the full report. To access the full report (download is free) click here.

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NSLog or os_log: How to Log for Multiple iOS Versions?

February 27, 2017 3:53 PM

Our QA guy informed me one day that he doesn’t see our log messages when testing on an iOS 10 device.

“Good morning Siri darling, ” I clicked the round icon on the top right edge of my screen. “I don’t see my NSLog messages, please advise…”

“You should switch to os_log API”, she arrogantly replied. “And please stop asking me how much is 36 times purple, which bear is best or can Chuck Norris beat Thor in a fistfight”.

Thank you Siri, I’ll see what I can do.

Basically, a quick look around our code revealed that our NSLog calls are no longer displayed in the console application. Now, we write our code as a library. This means that our log messages within the app, the ones our QA looks for when testing, were part of a dylib compiled in release. And under those circumstances, NSLog doesn’t work starting with iOS 10.0. What does work? Well, according to Siri, a new API, the os_log API, should do the trick.

What is os_log API, you ask? Well, officially it’s called the “Unified Logging System.” Its function is described as “centralizing the storage of log data in memory and in a data store on disk.”

And so we were faced with quite the conundrum. The new os_log API is the way to go, Siri said so herself, but it’s only available starting with iOS 10.0. We had no choice – we had to use the new API when available, but still use NSLog for the old versions.

How were we to do that?

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Hello, Kotlin! Converting an Android Project – Part 2

January 24, 2017 10:37 AM

I was trying to convert an Android project to Kotlin in Android Studio via the Kotlin plugin. If you haven’t read part one (you can always do it now), then I’ll briefly tell you that it’s up to you to choose how many classes to convert. I chose them all. The conversion caused numerous compilation errors and practically swayed me to convert one/two classes at a time. Even though solving compilation errors was a great way to learn, I still had an ambition – convert my MVP example project from Java to Kotlin code.

Therefore, I decided to attack it from another angle. My second approach was less messy – one or two compilation errors per conversion, albeit it took me a couple of hours to get everything working.

In the following post I will cover:

  • Adapter’s getView() runtime error, caused by the conversion
  • Kotlin pros/cons for Android developers
  • Verbosity comparison of Java vs Kotlin

TL;DR Conversion might cause errors but Kotlin will reduce NullPointerExceptions, and minify your code into a much more readable version.

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Hello, Kotlin! How to Convert an Android Project – Part 1

January 17, 2017 5:13 PM

I’ve been hearing about Kotlin everywhere. It’s the new big thing in the Android world. So big that Gradle themselves are talking about incorporating it.

So I set out on a journey to see what the hype is all about.

What is Kotlin? Well, simply put it’s a statically-typed language from the house of JetBrains that compiles to Java’s bytecode and therefore can be run using a JVM. It’s got lots of interesting features and full compatibility with Java.

The following post is not a conventional Hello World tutorial on Kotlin, rather it’s an experiment with a big bold “don’t try this at home” warning. It’s risky and code might break because I’m going to convert a whole project of a mid-level complexity (30 classes) at the click of a button, or rather 4 buttons (ctrl + alt + shift + k). If that won’t work out (spoiler alert: it didn’t), I’ll switch to plan B and convert my project one class at a time.  I’ve decided to see if they’re making good on their promise, as well as teaching myself a new programming language upside down. From big concepts to the finer details.

Because I’m going to mess with lots of code and it might not end up pretty I chose to convert one of Android’s google-samples projects which I forked. I chose the todo-mvp branch: https://github.com/SerjSmor/android-architecture. If you are unfamiliar with different styles of Android architecture (MVC, MVP, MVW) or their implications I highly recommend going over them anyway if you haven’t yet.

TL;DR: we’re converting a TODO List app.

Environment:

IDE = Android Studio 2.1.2. There’s a plugin for Eclipse too.

Kotlin version = 1.0.4

The before photo (before tinkering):

Hello, Kotlin! How to Convert an Android Project – Part 1

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The Hottest Mobile App Tools (SDKs) of Q4 2016

January 3, 2017 12:41 PM

It wasn’t too long ago that app developers didn’t know what’s what in the mobile SDKs world. Who’s stronger than whom and who’s fighting to keep their head above water. All that has changed. Last May, we released our first ever Android SDKs Trend Report, disclosing who’s hot and who’s not as we listed the top players overall, in different categories, geos and whatnot.

Now we’ve published our second report, based on an analysis of over 100,000 free Android apps, comprised of apps featured in Google Play’s top charts. These apps implement hundreds of SDKs, including all top industry players.

The report looks at October 2016 data, analyzes the SDKs that are active internationally, and are integrated in the apps we’ve looked at.  The data is then compared with the data presented in the April 2016 report to reveal the leading trends.

Main Highlights

Please note that we are sharing here a partial selection of the findings that are presented in the full report.  To access the full report (download is free) click here.

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11 Online Tools Mobile Developers Love Using

January 1, 2017 8:24 AM

Almost everyone I know from the mobile industry have a set of tools they work with and just can’t do without. Mobile app developers are no exception. They love using online or mobile tools that boost their productivity, be it free or paid, especially free…

Marketers, product managers and developers have learned to rely on advanced tools, add-ons, even just handy browser extensions that are nice to have in your everyday work.

So, we have asked a few mobile app developers to share which tools they love using the most and would happily recommend to colleagues. And to complete the picture, we have also posted this question in various professional app developers’ forums and groups. We told them they could list coding or general tools, project management tools, SaaS solutions or anything they find useful. We placed no restrictions!

On the contrary, we wanted app developers to feel free to list every tool that they love using, as long as it is related to their day-to-day work.

Many developers have happily shared their insights, disclosing which tools make their lives easier.

The result is presented below. It’s a free-style list, with no specific order or preferences. It lists a variety of tools from different areas. Some are tailored specifically for developers, while others serve the entire business community; some are offered by huge companies, while others were built by indie developers.

Hope you will find this interesting and maybe find some new tools for your own benefit!

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The App Store Policy That Might Get You Rejected in 2017

December 21, 2016 9:48 AM

Update: Apple just announced that it is postponing the ATS compliance deadline. A new deadline is unknown at this time.


During WWDC 2016, in the What’s new in Security session, Apple announced it will start enforcing App Transport Security in the App Store by the end of 2016. Our research indicates that most apps are still using keys that disable this policy and are not ready for this new regulation.

App Transport security (ATS) was introduced during WWDC 2015: “If you link your app against OS X El Capitan or iOS 9, by default it won’t be able to make any unprotected HTTP connections; they will simply fail…”

Now, with 2017 only a few days away, apps face harsher scrutiny by Apple. As if it wasn’t already tough enough getting through the review process unscathed, app publishers are now checked at the door for unsecure connections. Any irregularity and you won’t be let into the store before doing some proper explaining.

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16 Industry Events for Mobile App Developers You Should Know Of

November 15, 2016 5:15 PM

As an app developer you must have heard how critical it is to attend industry events. Some talk about leveraging these events from a networking and reputational standpoint, others about fueling your BizDev efforts and some are in it just to learn and stay up to date with industry news, techniques and emerging tools.

Plus industry events break our daily routine which is always fun!

However, not everyone’s so positive about these events. Some complain about them being a waste of money, unfocused, not bringing any real news and lacking relevant colleagues to mingle with. On top of this, events can be viewed as not adding quality leads and as mainly serving to the financial interests of the event producers.

I say it’s all a matter of setting the right expectations and doing your research before attending, speaking or presenting at any given event.

Personally, I like to stay updated with all the relevant events in my industry. Of course, I don’t attend all the events but I base my decision to attend/not attend on key parameters and understanding the value I would gain from that specific event.

I’ve gathered a list of some mobile app / mobile dev / mobile games events (organized chronologically by date) that are focused on developers. Although some further mini research might be needed before you make a decision, the list below can get you off to a nice start.

In the mobile industry, events cover a wide array of topics including mobile innovation, full stack development, marketing solutions, game dev and more. Some events are quite popular among mobile app pros. Please drop us a note to: contact@safedk.com if we left any important events behind!

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