How can I display a Dialog from a PreferenceFragment?

Question

I'm trying to bring up a DialogFragment when I tap a Preference in a PreferenceFragment. Unfortunately, when I call getFragmentManager() in DialogFragment.show() I receive the following error:

Cannot resolve method 'show(android.app.FragmentManager, java.lang.String)'

The problem is that I can't seem to refernece android.support.v4.app.FragmentManager from this fragment. The activity in charge of this fragment extends from FragmentActivity, but obviously that's not enough. I tried calling getSupportFragmentManager() as well, but that gave me this error:

Cannot resolve method 'getSupportFragmentManager()'

How can I make this work?

Here's some code:

gPrefAcknowledgements.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener()
{
    @Override
    public boolean onPreferenceClick(Preference preference)
    {
        DialogAcknowledgements dialogAck = new DialogAcknowledgements();
        dialogAck.show(getFragmentManager(), "acknowledgements");
        return true;
    }
});

score 9 · Accepted Answer · answered Jul 25 '13 at 22:42

9

Building on Steve's answer, I also need to set up the DialogFragment to import from android.app.DialogFragment (instead of android.support.v4.app.DialogFragment). The show() function in that library asks for an android.app.FragmentManager, which I can provide via a call to getFragmentManager() as I did within the code I posted in the question.

answered Jul 25 '13 at 22:42

IAmKale

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I'd upvote but I only have 11 rep. It's frustrating to say the least. – IAmKale Jul 25 '13 at 22:51

score 5 · Answer 2 · edited May 23 '17 at 12:16

5

Try this:

dialogAck.show(getActivity().getFragmentManager(), "acknowledgements");

You can always call the Activity which holds the Fragment equal of which type it is.

EDIT:

I was wrong, the PreferenceFragment isn't included in the Support Library and is only available in Android 3.0 and higher. This post could help to deal with this scenario.

edited May 23 '17 at 12:16

Community

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1

answered Jul 25 '13 at 21:25

Steve Benett

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I tried that too, that produced the same error since it returns android.app.FragmentManager, not android.support.v4.app.FragmentManager. – IAmKale Jul 25 '13 at 21:26
2

getActivity().getSupportFragmentManager() isn't good also? Are you sure you are using the support library imports for your Fragments and your FragmentActivity? – Steve Benett Jul 25 '13 at 21:28
PreferenceFragment doesn't seem to have a support library class. I tried poking around android.support.v4 but couldn't find anything for it. – IAmKale Jul 25 '13 at 21:33
1

It seems you are right, look at this [post](http://stackoverflow.com/questions/5501431/was-preferencefragment-intentionally-excluded-from-the-compatibility-package). – Steve Benett Jul 25 '13 at 21:36
You were obviously right, but I discovered that I was importing the wrong library. I posted the complete solution as an Answer. – IAmKale Jul 25 '13 at 22:44

How can I display a Dialog from a PreferenceFragment?

2 Answers2