# Simpler Android apps with Flow and Mortar

DevFeed: [Simpler Android apps with Flow and Mortar](<https://devfeed.tech/articles/simpler-android-apps-with-flow-and-mortar-15853.md>)

Original publisher: [Read original article](<https://developer.squareup.com/blog/simpler-android-apps-with-flow-and-mortar>)

Author: Square Engineering

Published: 2014-01-23T17:05:00Z

Content type: tutorial

Language: en

Sources: [Square Corner Blog RSS Feed](<https://devfeed.tech/sources/square-corner-blog-rss-feed.md>)

Topics: [Android](<https://devfeed.tech/topics/android.md>), [App](<https://devfeed.tech/topics/app.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [android-apps](<https://devfeed.tech/tags/android-apps.md>), [app](<https://devfeed.tech/tags/app.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [libraries](<https://devfeed.tech/tags/libraries.md>), [modules](<https://devfeed.tech/tags/modules.md>)

## AI overview

This tutorial introduces Flow and Mortar, two libraries used by Square's Android team to structure applications without relying heavily on Fragments. Flow manages screen navigation and back-stack behavior, while Mortar provides scoped dependency injection for building views.

## Source excerpt

Bust up your app into tidy little modules with these two libraries.