[android-developers] Re: Trouble programmatically setting default value of a Preference

You should do something like:

public void onCreate() {
addPreferencesFromResource(R.xml.prefs);
CheckBoxPreference pref = (CheckBoxPreference)
findPreference("blargh");
if(pref != null) {
pref.setChecked(true);
}
}

On Aug 23, 11:24 pm, b0b <pujos.mich...@gmail.com> wrote:
> I have a simple CheckBoxPreference "blargh" defined in an XML file. I
> want to programatically set its default value with code like this
> which does not work
>
> in subclass of PreferenceActivity:
>
> public void onCreate() {
>   addPreferencesFromResource(R.xml.prefs);
>    findPreference("blargh").setDefaultValue(true);
>
> }
>
> I would expect with code above that the first time the activity is
> displayed, the checkbox preference is checked due to true set as the
> default value. This isn't the case, it is unchecked.
> (In code above I force default value to true but in reality this is a
> computed value).
> I made sure to uninstall the app before reinstalling it to ensure
> first run conditions.
>
> What I'm doing wrong ? What's the correct way to dynamically set a
> default value for a preference loaded from XML ?

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