Nested PreferenceScreen not opening on click.

[stevenliebregt]

When using a nested preference screen with a PreferenceCompatFragment, and I click on it, it doesn't open, though when using an Activity it works. Are there things I should do extra to get it to work for fragments?

[gregkorossy]

Well, it seems like the default implementation only cares if the Activity handles it. However, there is a solution for nested fragments.

1. Implement the screen callback (OnPreferenceStartScreenCallback) in your PreferenceCompatFragment class. You can see an example implementation in the MainActivity in the sample app.

2. Add this to the same PreferenceCompatFragment:

@Override
public Fragment getCallbackFragment() {
    return this;
    // or you can return the parent fragment if it's handling the screen navigation, 
    // however, in that case you need to traverse to the implementing parent fragment
}

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Explanation:
The official library's implementation simply returns null so the handler skips over it even if the fragment implements OnPreferenceStartScreenCallback.

[stevenliebregt]

Thank you for the explanation.