Intent in Android activates the components.

Intent in Android activates the components.

• Intent activates the three major components Activity,Services,Broadcast receivers through a Message.
• The separate mechanism of intent object exist for each components.
• For Activity-  intent object is passed to Context.startActivity() orActivity.startActivityForResult() to launch an activity. Also intent object can also passed toActivity.setResult() to return information to the  activity that calledActivity.startActivityForResult().
• For Services- intent objects passes to Context.startServices() to start a services. also intent objects are passed to Context.bindServices()  which establish connection between calling components and target services.
• For broadcast- intent objects are passes to Context.sendbroadcast(),Context.sendOrederedBroadcast() or Context.sendStickyBroadcast() which deleivers to all interested broadcast receivers. 
• Intent objects are delivered to appropriate components without any ambiguity.