Activites not startable because of package?

I tried to put a preference activity in sub package. The main packages name is my.app.lication.android.credentials and the main package is my.app.lication.android

When I put the preference activity in the sub package and configure the manifest like so:

<activity 
  android:name="MyCredentials"
  android:label="@string/app_name">
  <intent-filter>         
      <action android:name="my.app.lication.android.credentials.MyCredentials" />
      <category android:name="my.app.lication.android.credentials.MyCredentials" />
  </intent-filter>
</activity>

the start fails and I get a ActivityNotFoundException. If I put the MyCredentials class in the main package and configure the manifest like so:

<activity 
  android:name="MyCredentials"
  android:label="@string/app_name">
  <intent-filter>         
      <action android:name="my.app.lication.android.MyCredentials" />
      <category android:name="my.app.lication.android.MyCredentials" />
  </intent-filter>
</activity>

it works. C开发者_高级运维an somebody explain why the SDK behaves this way?

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Try android:name=".credentials.MyCredentials" in your first manifest example.