Intent

Intent

1. Activates 3 type of comps

   • Activities
     • startActivity()
       • startActivityForReslut()
         • onActivittyResult()
   • Services
     • startService()
     • bindService()
   • BrodcastRecievers
     • sendBroadcast()
     • sendOrderedBroadcast()
     • sendStickyBroadcast()

2. 2 types:

   • Explicit
     • specify the component to start
     • always use for Service, to avoid security hazard
   • Implicit
     • declare general action to perform
     • require intent-filters

3. Information within Intent

   • Component name. i.e. cz.cvut.pr2.ExampleActivity
     • setComponent()
     • setClass()
     • setClassName()
     • or Intent constructor
   • general action; usually CONSTANT String
     • setAction()
     • or Intent constructor
   • Data
     • data URI to setData()
     • setType()
     • setDataAndType()
   • Category; usually CONSTANT String
   • additional info
     • Extra
       • Key: value pair
       • Bundle
     • Flags