Jun 20

Android: RecyclerView

RecyclerView is a widget for displaying lists of data. It recycles or reuses item views to make scrolling more performant. It can specify a list of item layout for each item in the data set. It supports animations and transitions. To use the RecyclerView follow the steps: Step-1: go to build.gradle(:app) add implementation ‘androidx.recyclerview:recyclerview:1.2.1’ in dependencies{....} Step-2: create new resource file by going res>layout>New>Layout Resource File give appropriate name to it e.g. item_view.xml

Android

1 min read

Android: RecyclerView

To use the RecyclerView follow the steps:

Step-1: go to build.gradle(:app)

add implementation ‘androidx.recyclerview:recyclerview:1.2.1’ in dependencies{....}

Step-2: create new resource file by going res>layout>New>Layout Resource File give appropriate name to it e.g. item_view.xml

Step-3: Create new class app -> java>com.example.<yourapp> -> Kotlin calass/file give it an appropriate name e.x: MyAdaptor

Step-4: Implement RecyclerView.Adaptor and override its methods along with RecyclerView.ViewHolder

Recycler_view3/MyAdaptor.kt at 22a57c3e8c754b19d29754b3f059db06766e3c11 · jhashuva/Recycler_view3

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github.com

Apr 25

Android: ConstraintLayout

ConstraintLayout is a layout manager for Android which allows you to position and size widgets in a flexible way. It’s available for both the Android view system and Jetpack Compose. It is recommended default layout for Android. It solves costly issue of too many nested layouts, while allowing complex behavior. …

Constraintlayout

3 min read

Apr 20

Android: View Binding vs Data Binding

View binding: — View binding is a feature that allows you to more easily write code that interacts with views. Once view binding is enabled in a module, it generates a binding class for each XML layout file present in that module. How to use View Binding using Kotlin: Step-1: In your module-level…

View Binding

4 min read

Mar 27

Apache Spark Architecture

Apache spark is unified analytics engine for large scale data processing. It was built in AMP Lab, UC Berkley in the year of 2009 by Matei Zaharia. Spark team claimed that Spark is 100x faster than apache hadoop. Spark achieves high performance for both…

Apache Spark

3 min read

Mar 27

Python Functions: Anonymous Functions

Anonymous function is a function that could be declared without name, anonymous function can be declared using lambda. Lambda functions can be used wherever function objects are required. They are syntactically restricted to a single expression. Like nested function definitions, lambda functions can reference variables from the containing scope. lambda…

Python

1 min read

Feb 27

Python Functions: User Defined Functions

User Defined Functions(UDFs) are the functions defined by user to perform specific task. Like built-in functions, User-Defined Functions also calls same way. We need to follow few rules to declare UDFs: Function Implementation should starts with a keyword def , It introduces function definition. It must be followed by the…

Python

6 min read

Jan 13

Python Functions: Built-in Functions

Python functions categorized into three types: Built-in Functions User Defined Functions(UDFs) Anonymous Functions Built-in Functions: Built-in Functions are the functions that come along with python or built-up with Python. That means programmer doesn’t have to implement the function or write the function but simple use its functionality. There are around 70 built-in…

Python

2 min read

Dec 8, 2021

Introduction to Kotlin Functions

Function is a block of code that can perform specific task. One use of the function is, it breaks large program into smaller modular chunks. Coming to functions in kotlin, it can be declare with the fun keyword. Function can take arguments with either named or default arguments. Basic Syntax…

Kotlin

3 min read

Nov 18, 2021

Five Things About Github

In this story we are going to see five important things about Github. Collaborative version control system: By default github known for collaborative version control. In software engineering version control is a class of systems responsible for managing changes to the programs. In simple words if you made any changes to the computer programs…

Github

2 min read

Nov 13, 2021

Python Collections: Dictionary

Dictionary is a collection of key <k> , value <v>pairs. Here key <k> used to access the paired value <v>. Most of the times key <k> is string but we can declare with other immutable data types. Dictionaries in python are mutable that means we can add, change, delete key-value…

Python

5 min read