Thanks Kostya and String, these were great answers.

I can see how I can create my own subclass and use them instead of my
the android classes.  My problem now is that it is the Preference
Activity, through an intent extra, that knows the specific widget ID for
which it is being displayed.  I don't see that the Preference or
PreferenceCategory subclassses have access to the parent activity that
caused them to be created.  Since Android is instantiating my subclasses
for me, I don't see how I have a hook to pass the subclass the crucial
piece of data required to reset its key - which is the whole purpose of
this exercise.

It looks like onPrepareAddPreference is probable the better place to
reset the key than is addPreference simply because this is more of a
preparation step anyway.  It's great to have multiple options!

...Jake


>>>>> "KV" == Kostya Vasilyev <[email protected]> writes:

   KV> Where your preference class needs to have the standard
   KV> constructor, just like with views:

   KV> public class MyPreferenceCategory extends PreferenceCategory {

   KV>     public MyPreferenceCategory(Context context, AttributeSet attrs) {
   KV>          super(context, attrs);
   KV>     }

   KV> }

   KV> And here is another useful override:

   KV> 
http://developer.android.com/reference/android/preference/PreferenceGroup.html#onPrepareAddPreference(android.preference.Preference
   KV> )

   KV> onPrepareAddPreference

   KV> -- Kostya

   KV> 2011/5/27 String <[email protected]>

   >> In your XML settings-definition file, here's what you need. Just use:
   >> 
   >> <com.my.package.PrefSubclass
   >> android:key="pref_key"
   >> ...
   >> />
   >> 
   >> where "com.my.package" is your package name, and PrefSubclass is the class
   >> name of your Preference subclass. Use this instead of:
   >> 
   >> <EditTextPreference
   >> android:key="pref_key"
   >> ...
   >> />
   >> 
   >> or whatever Preference class you're basing it off of.
   >> 
   >> String
   >> 
   >> --
   >> You received this message because you are subscribed to the Google
   >> Groups "Android Developers" group.
   >> To post to this group, send email to [email protected]
   >> To unsubscribe from this group, send email to
   >> [email protected]
   >> For more options, visit this group at
   >> http://groups.google.com/group/android-developers?hl=en
   >> 

   KV> -- 
   KV> You received this message because you are subscribed to the Google
   KV> Groups "Android Developers" group.
   KV> To post to this group, send email to [email protected]
   KV> To unsubscribe from this group, send email to
   KV> [email protected]
   KV> For more options, visit this group at
   KV> http://groups.google.com/group/android-developers?hl=en

-- 
Jake Colman -- Android Tinkerer

-- 
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en

Reply via email to