Question

I’m creating an rss aggregator for my Android phone. I’d like to be able to subscribe to an rss feed from the browser since most websites have a subscribe via rss button.

How can I build an intent filter to receive those links?

This question was similar and showed how to create an intent filter to handle browser links:
Make a link in the Android browser start up my app?

However, I don’t know how to make it specific to rss feeds.
As an attempt I tried this filter:

        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <data android:mimeType="application/rss+xml" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" /> 
        </intent-filter>

Am I on the right track? What should I be filtering on?

Answer 1

Turns out there’s a lot of different ways podcasts can be set up so each intent filter will only work for some of them. A lot of different filters need to be used to get the desired effect over most subscribe links.

Here’s some of the filters I found that worked:

<intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.BROWSABLE" />
                <category android:name="android.intent.category.DEFAULT" />
                <data android:scheme="itpc" />
                <data android:scheme="pcast" />
                <data android:scheme="feed" />
                <data android:scheme="rss" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="http" android:host="*"
                    android:pathPattern=".*xml" />
                <data android:scheme="http" android:host="*"
                    android:pathPattern=".*rss" />
                <data android:scheme="http" android:host="*"
                    android:pathPattern=".*feed.*" />
                <data android:scheme="http" android:host="*"
                    android:pathPattern=".*podcast.*" />
                <data android:scheme="http" android:host="*"
                    android:pathPattern=".*Podcast.*" />
                <data android:scheme="http" android:host="*"
                    android:pathPattern=".*rss.*" />
                <data android:scheme="http" android:host="*"
                    android:pathPattern=".*RSS.*" />
            </intent-filter>

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:mimeType="text/xml" android:scheme="http" />
                <data android:mimeType="application/rss+xml" android:scheme="http" />
                <data android:mimeType="application/atom+xml" android:scheme="http" />
            </intent-filter>