In Android development we often use intents to use Activity Communications and other Intent Services. As per Documentation "An Intent is a messaging object you can use to request an action from another app component ". Android Intent is the message that is passed between components such as activities, content providers, broadcast receivers, services etc. It is generally used with startActivity() method to invoke activity, broadcast receivers etc. The dictionary meaning of intent is intention or purpose. So, it can be described as the intention to do action. Android intents are mainly used to: Start the service Launch an activity Display a web page Display a list of contacts Broadcast a message Dial a phone call etc. There are two types of intents in android: 1) Implicit Intent: Implicit Intent doesn't specifiy the component. In such case, intent provides information of available components provided by the system that is to be invoked. For example, you may write the follo