App-ktx is an common extensions functions that try help you focus on bussines logic & leave rest usually stuff for it. e.g set custom text font type, convert file to base64,change app language at runtime ,convert date string from/to any format, calcluate time ago, convert dp to px,px to dp ... and more..
in project level build.gradle
allprojects {
repositories {
google()
jcenter()
//...
maven { url 'https://jitpack.io' }
}
}in app level build.gradle
dependencies {
implementation 'com.github.clickapps-android:app-ktx:<last-build>'
}