Thinking of how Android Development Career
survey of nearly 9000 professionals within the US who are close to change their jobs, revealed that almost 1 out of three people cited a scarcity of opportunity for development to be the first reason to shift out of their current careers.
The basic human desire for change and new horizons, including an inexpensive level of disenchantment with the repetitive work they’re currently engaged in, means many salaried employees would be happy to vary their jobs if they might be satisfied that there was an honest scope for advancement in their alternative choices.
If you’re amongst those hospitable change and searching for a replacement arena to specialize in, why not Android Development!
2 billion monthly active Android devices:
Today, there are 2 billion monthly active Android devices across the world. 82 billion apps and games were downloaded between June 2016 and June 2017.
Presently, 87.7 percent of the world’s smartphones run on the Android OS, and therefore the total number of smartphones is predicted to hit 6 billion by 2020.
No single arena of human endeavor has the potential to impact as many daily lives as a mobile developer.
Further, the success of app-driven companies within a previous couple of years has meant that there’s an important demand for Android developers currently within the market.
As more and more companies start adopting mobile-first strategies to interact with the more networked and mobile millennial consumers of today, the demand for mobile developers globally continues to extend.
Demand for mobile developers:
In India alone, a perusal of job searching platforms like Naukri, Indeed, LinkedIn, and Angel List reveals that there are over 20,000 open Android Developer jobs today. Companies are moving more heavily into creating a consummate app experience, driven by projections of 66% smartphone penetration globally by the top of 2018.
Nearly all consumer-facing industries have indelibly changed because the smartphone-wielding consumer has become their mainstream audience.
Android Development: A challenging field
Android Development isn’t a field without challenge.
As new technologies have begun to emerge with great potential for mobile development, today’s developers may need a number of the foremost incredible jobs of tomorrow.
The Android Developers of today and tomorrow are going to be liable for integrating exciting technologies like AI, Augmented Reality/Virtual Reality, and IoT onto existing applications on the Android OS, creating the new apps for tomorrow that folks will use to access information and transact.
Further, as smartphones evolve from entertainment devices to the first gateway of economic exchange, creating financial services on mobile platforms is an epoch-changing add progress with great potential for the years to return.
Finally, as smartphones become the holders of massive reams of private data, Android developers of the immediate future will need to design security systems to stop the loss of private data for millions. the chances and potential are truly endless.
Android development: Career option only to engineers
While engaging within the massive growth potential for mobile technologies of tomorrow as a neighborhood of your career would be attractive to most of the people, many would consider themselves to be unqualified. For them, Android development may be a career option available only to engineers and individuals with experience in programming.
A requirement of advanced skills:
While this was true even until a couple of years ago, online learning platforms can provide interested individuals with not just the fundamentals of Android development, but also advanced skills that might make them capable of realizing the potential for mobile development during a much greater measure.
Candidates would only need a logical and analytical approach, and these platforms can provide all the remaining skilling one would wish to become an adept mobile developer.
Get started with Android development
- Learn basic Java from Head First Java
- Setup Android Studio
- Setup Kotlin in Android Studio — you’ll skip this if you aren’t getting to learn Kotlin this year
- Read Android interface — Learn more about XML and consider components
When you do that, you’re doing not only have an honest setup dev environment to create apps on top of Android — but you are also well prepared with basics and fundamentals to know common terminologies that Android devs and most tutorials would use.
You also now can build basic apps on Android and may develop a couple of features. be happy to use a blank canvas and fill it together with your imagination.
When you are done fooling around with ideas, the subsequent goal for you in 2019 is to intensify the sport and push yourself as a developer that builds apps for the billions. Let’s attend level 2 now!
Improving yourself as an Android developer
This list will act as more of step by step ladder for you to find out, implement, and move forward for android development.
- Understand the Activity Lifecycle to push a bug free application
- Leverage dynamic and versatile and dynamic UI designs using Fragments
- Learn how to debug your Android app — use Android Studio debugger
- Master Android activities to create screens that you simply need a user to navigate through
- Gain an understanding of the context in Android
- Learn REST and HTTP — most professional devs are extremely good at understanding all aspects of REST and HTTP
- Learn how to require advantage of multithreading
– find out how to maneuver the get rid of the most thread
– Importance of threading
– Learn classes that are provided to assist you to create the foremost of the threaded code within the shortest time
– find out how Android uses threading at the system level, how that impacts design choices and decisions within your app
– Learn nuances of system memory and threading code
– find out how to use threaded solutions to extremely large and sophisticated tasks
- Be an expert at handling configuration changes
– Retain an object during a configuration change
– Handling config changes by yourself
- Learn Database and SQL
– Cloud databases
– Offline and native databases
– Offline architectures and offline first practices
- Content providers:
– find out how to share data with other apps
– find out how to access data from other apps
– Create a content provider that helps other apps to securely access and modify your app’s data
– fiddle with Calendar provider and contacts provider
- Learn about the highest Android 3rd party libraries — the foremost helpful and used ones are:
– table knife
All of them help you build a solid pro-level understanding of Android’s ecosystem and prepares you to handle a minimum of 10–15 differing types of business use cases with Android apps.
Learn Android Performance Patterns
When you actually need to craft a particularly powerful and memorable experience with Android, starting with Android performance patterns is that the perfect place. If you undergo this list you’ll not only find out how you’ll implement them but also will discover a couple of performance patterns that you simply otherwise would’ve missed. they’re a fantastic tool at the hands of a professional Android dev. So, here’s what you would like to find out and look out of when it involves Android Performance patterns:
– Async tasks aren’t helpful for processes that run long or threaded callbacks. find out how to use Handlerthread to handle these processes instead
– find out how to tackle memory churn
– find out how to suit Intent services with threading for efficiency
– Learn Android Service performance patterns to kill services as soon as their work is over
– Learn Android-specific hashmap containers to create apps with a balance of performance and memory
– find out how to use Memory monitor tool to watch how allocations impact your app’s performance
– Optimize your app for networking performance using caching
– Optimize the frequencies of your app’s network requests
– find out how to tackle leaking views
– find out how to handle garbage pickup
– find out how updating the visual properties of your app impacts the performance
– Get an in-depth understanding of vertical synchronization
– find out how to map Android UI with GPU and find out complexities that you simply should tackle to form sure your app runs smoothly
– find out how to create an app that renders at 60fps without dropping frames — discovers what percentage other apps compete together with your app for the system’s resources and devise strategies to handle it
– find out how to trace GPU performance and improve upon rendering your app
– Learn strategies on the way to reduce battery drain
– Benchmark your app against your competitors and therefore the Playstore breaking apps and check out to enhance over the app launch time. See how far you’ll get
– Reduce your app size
Let’s take it up to the 3rd level
Get deep into memory optimization with Bitmaps
Learn and practice how you’ll use Glide to handle bitmaps in your Android app. the issues you face would be once you serve plenty of content on your app would require fetching, decoding, and displaying bitmaps. If you’re not doing it right, you’re eventually getting to break your app, ensuring that plenty of users are getting to feel that your app isn’t good.
Note that you simply now need to handle up to 48MBs of Bitmap just from the user’s camera-generated images lately. this will easily eat up all the available memory.
Android Architecture Components
One of the most important things that I learned as a software dev was to practice and innovate on top of architectures and their components. As I started moving beyond MVP, MVVM, MVx’s, etc I noticed that there’s plenty of space for innovation around these architectural components also.
For example, back in 2017, default BLE(Bluetooth low energy) configs and setup weren’t up to the mark. Understanding that an architectural component could improve here by building an intermediate service library was an enormous benefit to me.
So, to find out this properly, I might suggest you choose individual architectural components of your app and learn their best practices. a number of these that come to my mind are:
- Data binding
- Be a professional with testing
You don’t want to become one among those devs that says “It works fine on my system”, right? So, build everything on top of your architecture design and optimization knowledge to make unit tests (JUnit4), find out how to use Espresso, and specialize in code Coverage reports that delight Engineering managers and VPEs. specialize in how these reports help the engineers, testers, managers, and stakeholders move through critical app’s performance issues and prioritize them.
And automate and reuse the maximum amount as you’ll form your original setup. That sets a path for you to become an engineering manager.
Reactive Programming — RxJava
This goes without saying and doubtless is one among the foremost taken care of components of data in your resume and practice interviews. There are plenty of places where you’ll practically find out how to implement RxJava and it’s best practices. But, my favorite ones are:
- Grokking RxJava Series
- Exploring RxJava 2 by Jake Wharton
- Managing State with RxJava by Jake Wharton
They function as a reasonably good start line for you to know RxJava and master some aspects of it. If you’re trying to find more topics to explore around RxJava, consider browsing these also to explore:
- Depth of Observables in RxJava
- Implementing Caching using RxJava
- Learn everything around Dagger
The steps to being a Dagger pro are:
- Go through the documentation and understand the whole dependency injection process
- Build an inventory of limitations
- Build a project and implement Dagger 2 in it
- Go Pro with security
An Android Devlopment pro and a security expert? Wow! That’s something we all rarely see during a dev!
So, here are a couple of things that you simply can neutralize 2019 to be that person:
- Learn how you’ll isolate your app’s data and code from other apps
- Learn cryptographical functions and implement them
- Learn how you’ll remove risks related to memory management errors
- Learn how to best use user granted permissions to regulate app data
- Secure data storage and encryption with: local storage, while-in-motion or on cloud
- Become proficient with Content Providers for secure access
- Make sure you obfuscate your data
- Learn how you’ll implement native security solutions that aren’t a neighborhood of general Android stack
- Audit popular 3rd party libraries to know and break down them by the level of vulnerabilities and build a search doc around it
- Work on making BLE safer within your app
sources: India today android.jlelse.