Basics of Git for beginners — You can use this article to revise and copy-paste the git commands quickly if there’s a need. This article is For the beginner, By a beginner, and to the beginner. What is Git Git is the coolest thing when it comes to tracking changes in any set of files, coordinating work among programmers…

Programming Language for Android — Kotlin Overview Kotlin is a JVM language. It needs Java Virtual Machine to execute its bytecode. Compatible with Java (and Android APIs). Kotlin is statically typed, meaning the type of every expression in the program is known at compile time. This avoids runtime errors. It has support to provide NullPointerException. It is…

Life of Android Activity — Well it’s not the tinder app but “any screen shown to the user is an activity”. In this case, we are seeing the log in activity of Tinder. We know activity but what’s lifecycle? Activity goes through many states. These states represents activity lifecycle. For example, a car has states…

Understanding concepts of Touch framework Hello fellow developers, in this article I am going to discuss about the Android touch framework, how the touches flow through the application and how Android handles all of those events. How Android deals with Touch Every touch event into your application is wrapped up as a MotionEvent. These MotionEvent…

Programming Language for iOS Swift Overview Swift is a general-purpose, multi paradigm, object-oriented, functional, imperative and block structured language. Some additional features of Swift include: Closures unified with function pointers Tuples and multiple return values Generics Structs that support methods, extensions, and protocols Functional programming patterns, e.g., map and filter Powerful error…

Android Interview for small businesses — Since I’m an Android developer I’ll be using the term ‘android’ but this article is still relevant to any engineering candidates. I will be sharing about an interview for the role android developer that I have gone through. This interview was for a small organization, a startup. …

Organizing your Android App — The way in which a new Android developer organizes the code becomes problematic as soon as the size of the app increases. Almost all of the code resides in an activity and the activity becomes too much congested. The activity acts as both view and the controller. All the functions…

When we open a new activity from an activity itself, we can send data to it by using an intent and putExtra() method. But what if we also want to get something back? This is what the startActivityForResult() method is for. …

Since the Android system uses the default no-arg constructor when recreating a fragment, we should not pass values over an overloaded constructor with arguments when we instantiate it. The correct way to instantiate a new fragment and passing values to it, is by creating a bundle, setting arguments on this bundle using setArguments() method and then passing it to our fragment. Inside the fragment we then retrieve this bundle and get the values out of it. A clean way to do this is by creating a “factory method”.