Launch Activity From URL

Question

I am trying to have my application launch when the user browses to a certain url. I have found a few examples and they all have the same things in the manifests but it's not working for me. I have put the intent-filter under an Activity as well as a Receiver.

Here is my manifest snippet:

<intent-filter>
  <action android:name="android.intent.action.VIEW"></action>
  <category android:name="android.intent.category.DEFAULT"></category>
  <category android:name="android.intent.category.BROWSABLE"></category>
  <data android:host="www.urbandictionary.com" android:scheme="http"></data>
</intent-filter>

When under the Activity, I tried using onNewIntent and when it was under a Receiver, I tried using onReceiveIntent, both with a simple Log.i call to see if it fired or not. I am not having much luck.