Working of Dalvik Virtual Machine in Android - DataFlair

Working of Dalvik Virtual Machine in Android - DataFlair

Dalvik virtual machine - Learn what is a Virtual machine, what is DVM in Android, use of android DVM, comparison between DVM and Android Runtime.

In this DataFlair Android article, we’ll read about Dalvik Virtual Machine(DVM). Android DDM was written by Dan Bornstein, and Dalvik is the name of a town in Iceland.

A Dalvik virtual machine enables Android applications to run in its own process with its own instance.

android dalvik virtual machine

Virtual Machine

Firstly let us understand what a virtual machine is? It is basically a software implementation of a physical computer. This implementation works like a real physical computer. It even compiles and runs programs the same as a physical computer. It can be understood like an emulator. There are some issues with virtual machines too. One is that it is less efficient when compared to physical computers. Another issue is its performance, which is unstable when multiple virtual machines are working simultaneously on the same machine.

Even though Java Virtual machine has a high performance and provides great memory management, it is not optimized for low-powered devices. Dalvik VM is also a virtual machine that is highly optimized for mobile devices. Thus, it provides all the three things, that are memory management, high performance as well as battery life. It is strictly developed for Android mobile phones.

Role of the Dalvik Virtual Machine

The Role of the DVM in Android includes:

  • Optimizing the Virtual Machine for memory, battery life, and performance
  • Conversion of class files into .dex file through Dex compiler that runs on Dalvik VM.
  • Converting multiple class files into dex files.

The Dex compiler helps convert the class file into .dex file, the following image shows how it flows:

  • First of all the .java file converts into .class file with the help of Java compiler.
  • Next .class file converts into .dex file using Dec compiler.
  • Then finally the packaging process is handled by the Android Assets packaging (aapt) tools.

Working of Android Dex Compiler

android tutorials dalvik virtual machine dalvik virtual machine in android dvm in android android

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

Top Android Projects with Source Code

Android projects with source code - Work on real-time android projects. We’ll start project ideas from beginners level and later move to advance projects.

Building Dark Mode Theme in Android

Hello World, today we are going to see how we can implement a dark theme or night mode in our android application. This tutorial is going to be very simple and easy to understand. The dark theme is attractive to users and it is comfortable for low light conditions.

Top 130 Android Interview Questions - Crack Technical Interview Now!

Top Android Interview Questions & Answers from Beginner to Advanced level. Get ready to crack your next android interview with these android interview questions

A Guide to Building Custom Switches in Android

Hello World, today we are going to make a custom switch. Why? Because the default one looks so boring and ugly. Why we use a switch? As the name suggests, the switch is used to trigger the value either it is on, or it is off. Let's see, how our custom switch will look at the end of the tutorial.

Android Menu - Steps to implement Menu in Android - DataFlair

Implement Android Menu in your application - Provide functionality to your application and make it user friendly. Also, Learn its types and implementation.