It is also known as the smartphone operating system. On phone application development . It is therefore necessary for students to know that how mobile communication works and how to build mobile apps for android operating system. 15 … The dictionary meaning of intent is intention or purpose. An Android app typically has several activities. In the onCreate method of MyActivity.java I use “myUI.display ();”. Some of the general functions of intent are: Start service Launch activity Display web page Display contact list Message broadcasting Methods and its Description There are two intents available in android as Implicit Intents and Explicit Intents. The Typical Mobile App Development Lifecycle. 1. create the .aidl file, which defines the programming interface. Inside the , you can specify the type of intents to accept using one or more of these three elements: