Running in a Background Service

使用IntentService

create an IntentService

RSSPullService extends IntentService
override onHandleIntent()

Define the IntentService in the Manifest

android:exported is set to "false", the service is only available to this app.

Create and Send a Work Request to an IntentService

• Create a new Intent --- mServiceIntent
• Call startService()
  Once you call startService(), the IntentService does the work defined in its onHandleIntent() method.

Report Status From an IntentService

• Create an Intent --- localIntent
• Send the Intent
  LocalBroadcastManager.getInstance(this).sendBroadcast(localIntent)

Recieve Status Broadcasts from an IntentService

• ResponseReceiver extends BroadcastReceiver
  Prevents instantiation --- DownloadStateReceiver()
  onReceive()
• Create an IntentFilter
• Register the BroadcastReceiver and its IntentFilter