Re: [android-developers] Re: Custom DialogPreference and PreferenceManager.setDefaultValues issue

I had the same problem and fixed it by persisting the value in the onSetInitialValue method.  The javadoc says: "If restorePersistedValue is false, you should set the Preference value to defaultValue that is given (and possibly store to SharedPreferences if shouldPersist() is true)."  It's that second part that is required.

On Friday, September 21, 2012 11:50:28 AM UTC-5, Gene Wildhart wrote:

Your solution works perfectly for me on Gingerbread (Android 2.3.7) and below.  However, when trying on ICS (4.0+) or newer, neither the onSetInitialValue or the onGetDefaultValue functions are ever called.  Can anyone explain why the behavior changed in ICS?

On Friday, July 27, 2012 1:41:50 AM UTC-7, Jens wrote:

Finally, I've found a solution to this problem!

The official documentation for the preferences activity has just been updated.

Check out the paragraph about "Building a Custom Preference"

http://developer.android.com/guide/topics/ui/settings.html#Custom

You have to implemenet both of the following methods the way it is described.

Now PreferenceManager.setDefaultValues() also works for my custom dialog!

protected void onSetInitialValue(boolean restorePersistedValue, Object defaultValue)

protected Object onGetDefaultValue(TypedArray a, int index)

On Sunday, July 15, 2012 2:18:37 PM UTC+2, jdr88 wrote:

I just came across the same issue and can confirm the same behaviour:

android:defaultValue of a custom DialogPreference is not set

with PreferenceManager.setDefaultValues() method.

Seems like a bug?

I'm using now the solution that you proposed...

On Thursday, 13 October 2011 23:11:27 UTC+2, tlegras wrote:

Okay, I give up. 

My preference default value will be copied in the preference access code as well:

value = sharedPref.getInt(mykey,myDirtyHardcodedDefaultValue );

If ever someone has a better solution, it will be welcome :)

Thierry.

2011/10/11 Thierry Legras <tle...@gmail.com>

Hi Ibendlin,

Thanks for helping me :)

I don't think the problem is in SeekBarPreference.onSetInitialValue() function itself as it is never called (I have put a log in it to check). There is certainly an issue somewhere in my implementation; when setDefaultValues is called, only SeekBarPreference constructor is called. 

I was suspecting the xml, but I don't see any problem in it (android:defaultValue is set and android:persistent as well):

    <com.tlegras.tools.SeekBarPreference 

        android:key="preferences_epg_daytostore"

        android:title="@string/preferences_epg_daytostore_title"

        android:summary="@string/preferences_epg_daytostore_summary"

        android:dialogMessage="Nombre de journées à télécharger. 

Attention, plus ce nombre est élevé, plus le chargement sera long et moins l'application sera réactive."

        android:text=" jour(s)"

        android:defaultValue="4"

        android:max="5"

        android:persistent="true" 

        />

2011/10/11 lbendlin <lu...@bendlin.us>

it took me a few weeks to get that right.  here's my example for a boolean value. And yes, .setDefaultValues is actually working, despite what you may think :-/

   @Override
    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
    boolean temp = restoreValue ? getPersistedBoolean(false) : defaultValue.toString().equals("true") ? true : false;
    if (!restoreValue)
        persistBoolean(temp);
    this.oldValue = temp;
    }

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