Source: Google Images
Source: Google Images
CarouselView control in Xamarin.Forms 4.4.0. Along with this we also have IndicatorView for displaying the pages or items in the carousel. As well as SwipeView for providing contextual actions to any element in a CollectionView. The release theme of getting things moving would not be complete without showcasing the new GIF animation support for images. Let’s begin right there.
The year 2020 is coming to a close as getting nearer to 2021. The end of 2020 will be the end of a decade in which app development proliferated, and in which software technology reached greater heights.
But as years come by, the importance of apps is only going to increase even further people begin to use technologies such as IoT, chatbots, AI/ML software in their daily lives.
App development includes more than just mobile apps. It also includes development for applications for other types of devices, such as PC, tablets, wearables, etc. However, the growth of mobile apps alone gives great scope for running profitable businesses in this space.
As per research by iResearch, revenue from paid mobile app downloads and in-app advertising alone reached $581 billion dollars in 2020, and reach almost near the trillion-dollar mark by 2023.
Have you heard about bans on apps and developers in Google Play? This is just such a story. It’s also an attempt to collect similar cases into one place and offer some kind of plan of action to prevent Google’s unpredictable actions. It isn’t fair to be banned for the legal use of free material. Personally, I like the idea of content licenses such as CC BY-SA, which permits any use, including commercial. Thanks to such licenses, we developers have websites like StackOverflow, where I’ve been elected to be the moderator. Unfortunately, companies like Google don’t respect the ideas behind these licenses. Here's my story.
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.
