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Commit 53c2cf79 authored by Fabrice Di Meglio's avatar Fabrice Di Meglio
Browse files

Add support for saving and using the Preference's key value 

- make public and hide the PreferenceGroupAdapter class
- add setActivated(int position) to be able to set the activated item
- udpate getView(int position, View convertView, ViewGroup parent) to set/unset
the activated item

Change-Id: I8a653ad6541bb6b7a043ba7c3d95e5ecad924a0d
parent 19de4fff

core/java/android/preference/PreferenceGroupAdapter.java

+13 −3
Original line number Diff line number Diff line
@@ -45,8 +45,11 @@ import android.widget.ListView; 
 * adapter, use {@link PreferenceCategoryAdapter} instead.

 * 

 * @see PreferenceCategoryAdapter

 *

 * @hide

 */

class PreferenceGroupAdapter extends BaseAdapter implements OnPreferenceChangeInternalListener {

public class PreferenceGroupAdapter extends BaseAdapter

        implements OnPreferenceChangeInternalListener {

    

    private static final String TAG = "PreferenceGroupAdapter";
@@ -88,6 +91,8 @@ class PreferenceGroupAdapter extends BaseAdapter implements OnPreferenceChangeIn 
        }

    };



    private int mActivatedPosition = -1;



    private static class PreferenceLayout implements Comparable<PreferenceLayout> {

        private int resId;

        private int widgetResId;
@@ -207,6 +212,10 @@ class PreferenceGroupAdapter extends BaseAdapter implements OnPreferenceChangeIn 
        return this.getItem(position).getId();

    }



    public void setActivated(int position) {

        mActivatedPosition = position;

    }



    public View getView(int position, View convertView, ViewGroup parent) {

        final Preference preference = this.getItem(position);

        // Build a PreferenceLayout to compare with known ones that are cacheable.
@@ -217,8 +226,9 @@ class PreferenceGroupAdapter extends BaseAdapter implements OnPreferenceChangeIn 
        if (Collections.binarySearch(mPreferenceLayouts, mTempPreferenceLayout) < 0) {

            convertView = null;

        }



        return preference.getView(convertView, parent);

        View result = preference.getView(convertView, parent);

        result.setActivated(position == mActivatedPosition);

        return result;

    }



    @Override

core/res/res/layout/preference_holo.xml

+2 −1
Original line number Diff line number Diff line
@@ -23,7 +23,8 @@ 
    android:minHeight="?android:attr/listPreferredItemHeight"

    android:gravity="center_vertical"

    android:paddingStart="@dimen/preference_item_padding_side"

    android:paddingEnd="?android:attr/scrollbarSize">

    android:paddingEnd="?android:attr/scrollbarSize"

    android:background="?android:attr/activatedBackgroundIndicator">



    <LinearLayout

        android:layout_width="wrap_content"