AndroidIntents

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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.

The LabeledIntent is the subclass of android.content.Intent class.

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: implicit and explicit.

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 following code to view the webpage.

Program for Implicit Intent

Activity_main.xml

ActivityMain.Java

AndroidManifest.xml

2) Explicit Intent

Explicit Intent specifies the component. In such case, intent provides the external class to be invoked.

To get the full code of explicit intent, visit the next page

Program for Explicit Intents

Activity _Main.xml

MainActivity.Java

Second_Activity.xml

SecondActivity.java

Android Manifest.xml

 

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