As suggested by the docs if using Android 3.0+, I used a Preference
fragment which is used by an Activity that uses getFragmentManager to
implement Preferences. My question is, how do you get the (root?) View of a
Preference layout?
In both SettingsActivity and SettingsFragment, findViewById and getView
both return null, which probably means that the preference layout view is
null, but somehow there is a layout.
I also have a custom preference, CustomCatalogListPreference. What I'm
trying to do is gain access to a progress bar that is part of the custom
preference, but findViewById or getView both return null.
public class SettingsActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Display the fragment as the main content.
getFragmentManager().beginTransaction()
.replace(android.R.id.content, new SettingsFragment( this ))
.commit();
}
}
public class SettingsFragment extends PreferenceFragment {
public static final String ABILITY_SCORES_KEY = "pref_score";
public static final String SAVING_THROW_KEY = "pref_saveThrow";
Context mContext;
public SettingsFragment( Context ctx ) {
mContext = ctx;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Load the preferences from an XML resource
addPreferencesFromResource( R.xml.preferences );
}
}
public class CustomCatalogListPreference extends ListPreference {
Context mContext;
public CustomCatalogListPreference( Context context, AttributeSet attrs
) {
super( context, attrs );
mContext = context;
}
public CustomCatalogListPreference( Context context ) {
super(context);
mContext = context;
}
@Override
public View onCreateView( ViewGroup parent ) {
super.onCreateView( parent );
LayoutInflater inflater = ( LayoutInflater ) mContext.
getSystemService( Context.LAYOUT_INFLATER_SERVICE );
return inflater.inflate( R.layout.custpref_catalog_list, null );
}
@Override
protected void onBindView( View view ) {
super.onBindView( view );
}
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