Best Resources to Learn Android Development: 10 Tutorials and Courses, 20+ Best Libraries

Android is one of the most dominating mobile operating systems in the present market. That is why Android apps have become popular, and app developers think of learning the best technologies for Android app development. As one of the Android app developers, you have a chance of getting jobs.

Tutorials and Courses

Now, you can look for a training program to learn Android development. We have listed some free and paid courses available at different online sites.

  1. Android Material Design Videos – You will know about Google’s Material Design used for developing Android apps. You can learn how to implementing this design in creating apps for Android Lollipop and other pre-Lollipop versions, including new widgets such as CardView, ToolBar, and RecyclerView.
  2. Developer.android.com – It is official source for free tutorials with a guide on UI structure and Andorid APIs. It has 2 sections: Codelabs and Courses. Most codelabs step you through the process of building a small app, or adding a new feature to an existing app while Courses focus on training paths that teach you how to build Android apps.
  3. Google: Associate Android Developer (AAD) – At this website, you can find a premium certification course to become an Android developer. However, you must know about Java to choose this course. The curriculum of this course includes instructions on Android Studio, app testing, Android tools, Gradle, and more.
  4. The Complete Android N Developer Course – You will know about Android Studio and a range of Android features. The tutorial enables you to create Android Oreo apps and clone other apps (Instagram and Uber). Without any programming knowledge, you can join the Android N Developer course.
  5. Android Basics: User Interface – Android app interface design is highly important to developers, and this free tutorial helps you to learn the way of creating the best UI. The beginner-level course covers two weeks, and you will learn lots of things. The self-paced learning is one of the advantageous features of this online course at Udacity.
  6. ConstraintLayout.com – This is a community-sourced documentation hub all about ConstraintLayout. It teaches a lot of basic stuff and some tips to implement this layout.
  7. Basic Android Weather App – Make an Android app that read weather information from OpenWeather using Retrofit.
  8. Calculator App – A simple calculator with number pad and 4 Math operator with a display screne. In this tutorial, you will learn how to use ConstraintLayout for a complicated layout.
  9. Using RxJava 2 – Reactive programming is an important part of making an Android app nowadays. Learn how to use RxJava 2 in your app!
  10. Android MVP Introduction – 2 chapters introduce about Model, view, and presenter which is an Android architecture that provides code reusability and testability.

Languages and Platforms for Android Apps Development

For games:

Android IDEs

What IDE to use depends on what programming language you use to make an Android app.

For native, I recommend only Android Studio.

Best Android Libraries

  1. RxJava – It is a library for composing asynchronous and event-based programs using observable sequences for the Java VM. It becomes the standard for making an Android app.
  2. Dagger 2 – Dagger is a compile-time framework for dependency injection. It uses no reflection or runtime bytecode generation, does all its analysis at compile-time, and generates plain Java source code.
  3. Retrofit – Retrofit is a type-safe HTTP client for Android and Java. Networking is one of the most important parts of Android applications and Retrofit will make handling network request easier.
  4. Store – Store is a Kotlin library for loading data from remote and local sources. A Store is a class that simplifies fetching, sharing, storage, and retrieval of data in your application. 
  5. Coil – An image loading library for Android backed by Kotlin Coroutines.
  6. Picasso – Images add much-needed context and visual flair to Android applications. Picasso allows for hassle-free image loading in your application—often in one line of code!
  7. FastAdapter – The FastAdapter is here to simplify creating adapters for RecyclerViews. Don’t worry about the adapter anymore. Just write the logic for how your view/item should look like, and you are done. It supports many common use case of recyclerview, including drag-n-drop, header & footer, checkbox/radio, endless scroll, swipe to remove, and many more.
  8. AChartEngine – AChartEngine is a charting library for Android applications. It currently supports the following chart types: line chart, area chart, scatter chart, time chart, bar chart, pie chart, bubble chart, doughnut chart, range (high-low) bar chart, dial chart / gauge, combined (any combination of line, cubic line, scatter, bar, range bar, bubble) chart, cubic line chart.
  9. EazeGraph – EazeGraph is an Android library for creating beautiful and fancy charts. Its main goal was to create a lighweight library which is easy to use and highly customizeable with an “up-to-date”-look.
  10. AppCrossPromoter – An android library to cross-promote your apps and manage direct-sold campaigns (free, open source, third party).
  11. Toasty – Make toast more tasty and beautiful.
  12. Lottie – Lottie is a mobile library for Android and iOS that parses Adobe After Effects animations exported as json with Bodymovin and renders them natively on mobile!
  13. timber – A logger with a small, extensible API which provides utility on top of Android’s normal Log class.
  14. LeakCanary – LeakCanary is a memory leak detection library for Android.
  15. greenDAO – greenDAO is an open source Android ORM making development for SQLite databases fun again. It relieves developers from dealing with low-level database requirements while saving development time. 
  16. PhotoEditor – A Photo Editor library with simple, easy support for image editing using Paints, Text, Filters, Emoji and Sticker like stories.
  17. CalendarView – A highly customizable calendar library for Android, powered by RecyclerView.
  18. Bubble Navigation – A light-weight library to easily make beautiful Navigation Bar with lots of customization options. It supports TransitionDrawable for cool state changes.
  19. Balloon – A lightweight popup like tooltips, fully customizable with arrow and animations.
  20. Croppy – A image cropping library for Android which supports focus, zoom features.
  21. Broccoli – It shows the placeholder of view when you are loading something…
  22. Contour – Contour is a typesafe, Kotlin-first API for complex layouts on Android. The library aims to be the thinnest possible wrapper around Android’s layout APIs. It allows you to build compound views in pure Kotlin without using opaque layout rules.
  23. Orbit MVI – Orbit is a MVI framework for Android and Kotlin, which provides the minimum structure possible around your redux implementation to make it easy to use, yet leave you open to use RxJava’s power.
  24. Cyanea – This library is a powerful, dynamic, and fun theme engine. it is named after Octopus Cyanea which is adept at camouflage and not only can change color frequently, but also can change the patterns on and texture of its skin.

Useful Tools

  • Android Asset Studio – A collection of tools to generate icons for Android, including launcher, shape shifter, 9-patch generator, action bar icon generator.
  • Repix.app – Create screenshots for apps.
  • Previewed.app – Create intro videos, screenshots for apps.

Our Tutorials

  • 9 Best Android Animation Libraries
    It is kind of hard to implement animations in native Android with either Kotlin or Java. These animation libraries for Android will help you make this task more comfortable. Lottie...
  • 6 Best Android ORM Libraries
    Using an Android ORM library can help you save lots of time working on an app with lots of database activities and focus on logic part of the app. Room...
  • How to post project to GitHub from Android Studio
    Posting project to GitHub as a repository is quite easy in Android Studio. Requirements: GitHub account.Download Git and install from https://git-scm.com/downloads.Android Studio. Connect GitHub to Android Studio: Go to File...
  • Fix cleartext HTTP traffic not permitted in Android
    There is an error when you try to connect to a HTTP server. Cannot send data to the server java.net.UnknownServiceException: CLEARTEXT communication to [HOST] not permitted by network security policy...
  • Android Fragment
    A Fragment represents a behavior or a portion of user interface in a FragmentActivity. Open a fragment from another fragment activity!!.supportFragmentManager.beginTransaction() .replace(R.id.container, ProductFragment()) .commitNow() If doing it in an Activity,...
  • Android App Bar
    In its most basic form, the action bar displays the title for the activity on one side and an overflow menu on the other. Even in this simple form, the app bar...
  • Android AutoCompleteTextView
    AutoCompleteTextView is an editable text view that shows completion suggestions automatically while the user is typing. The list of suggestions is displayed in a drop down menu from which the...
  • Android Date Picker
    DatePicker and DatePickerDialog are often used when requesting user to select date instead of typing in Show DatePickerDialog in fragment This will display a DatePickerDialog for user to choose date...

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