Install Andriod studio

click next

select custom select theme

select below options

set Ram for emulator

next it will download the components

once done, click finish

click configure in the above screen and select SDK manager

click apply

select arm-dbt license and accept select sdk-license again click accept click next

component will be installed once done, click finish again we will be back to the component selection screen and click OK.

Setting Andriod home environment variable

The SDK is installed, by default, at the following location: C:\Users\YOUR_USERNAME\AppData\Local\Android\Sdk

Add platformtools to path

The default location for this folder is: C:\Users\YOUR_USERNAME\AppData\Local\Android\Sdk\platform-tools

Open virtual device

in welcome to andriod studio screen —> configure —> AVD manager

React native

create project

run below command to create react native project npx react-native init <projectname>

Add java path in your project

open android\gradle.properties file and add org.gradle.java.home config

android.useAndroidX=true
android.enableJetifier=true
org.gradle.java.home=C:\\Program Files\\Java\\jdk1.8.0_202

run the project

Ensure that the andriod emulator is running run below command npx react-native run-andriod when we run that we will get one more node command prompt opened.

finally we can see the running react native in the emulator

Update the app.js and save, it will be automatically refreshed in the emulator.