Popular cloud hosting DigitalOcean has recently launched its new marketplace selling preconfigured images that can help to quickly deploy an application server. It’s much like AWS, but DO is for those already using this provider’s services. Let’s see how to deploy a simple server for WebRTC streaming with a DO account for a $10/month fee based on Flashphoner WebCallServer and how such a server can be of use.
I frequently hear questions like "How to implement authentication in an Android app?", "Where to store a PIN?", "Hey man, will I be secure if I implement an authentication feature in such a way?" and a lot of the kind. I got really tired answering these questions so I decided to write all my thoughts about it once to share with all questioners.
This article aims to show how to use Kotlin Coroutines and remove Reaxtive eXtensions (Rx).
To start let's consider four benefits of Coroutines over Rx:
To run non-blocking code using Rx you'd write something like this:
Observable.interval(1, TimeUnit.SECONDS)
.subscribe {
textView.text = "$it seconds have passed"
}Which is effectively creating a new thread. Threads are heavy objects in terms of memory and performance.
Both are critical in the mobile development world.
You can achieve the same behavior using the following snippet:
launch {
var i = 0
while (true){
textView.text = "${it++} seconds have passed"
delay(1000)
}
}Essentially, Coroutines are light-weight threads but we don't create any real thread.
Here we are using non-blocking delay() function, which is a special suspending function that does not block a thread but suspends the Coroutine.
Google loves easter eggs. It loves them so much, in fact, that you could find them in virtually every product of theirs. The tradition of Android easter eggs began in the very earliest versions of the OS (I think everyone there knows what happens when you go into the general settings and tap the version number a few times).
The mobile app developers are exceptionally intrigued by conveying 100% fulfillment outcome for the entrepreneurs. By having top 10 mobile app development companies, it is crucial for working with an effective outcome and does the worldwide system. In this way, get assistance from the professional mobile app developers and grow the business in like manner.
Every year there are a lot of articles dedicated to Valentine's Day. I also decided to get involved in this topic and create something original and unusual. The idea was to create a simple Android application with hearts that would have their physical models and interact with each other. Then I added text, sounds, particles and some other effects. The resulting app was working and quite original! In this article I will describe the creation process, as well as the capabilities and pitfalls of the libgdx library.
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(originally published on Medium)
Flutter provides a modern react-style framework, rich widget collection and tooling, but there’s nothing similar to Android’s guide to app architecture.
Indeed, there’s no ultimate architecture that would meet all the possible requirements, yet let’s face the fact that most of the mobile apps we are working on have at least some of the following functionality:
Taking this into account I have created a sample app that is solving exactly the same problem using three different approaches to the architecture.
