File download in android?

Question

I use the following intent-filter in the manifeast.xml. I need to download the ics file only from the mail attachment.If i use it in the browser it works.But from the default email configuration it's not used to open the mail attachment . How to solve this?

 <intent-filter>  
      <action android:name="android.intent.action.VIEW" />
      <category android:name="android.intent.category.DEFAULT" />
  <data android:mimeType="text/calendar" />
 </intent-filter>