title: How to install content in a app with other app
body: <p>My question is simple, as in other operating systems like Windows, you can install a program specific content, such as images in the directory of another program so he can have it available for use.</p>
  
  <p>I have understood that Android is based on Linux, and the app can not communicate directly with other.</p>
  
  <p>So i was wondering if it is possible to do this, and if possible what steps should I consider.</p>
  
  <p>To understand that I mean an example would be an app that you install emoticons in whatsapp for example.</p>
  
  <p>Thanks.</p>