content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.preference;
  
  import com.android.internal.R;
  import com.android.layoutlib.bridge.android.BridgeContext;
  import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
  
  import org.xmlpull.v1.XmlPullParser;
  
  import android.content.Context;
  import android.content.res.TypedArray;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.ListView;
  
  /**
   * Delegate that provides implementation for native methods in {@link Preference}
   * <p/>
   * Through the layoutlib_create tool, selected methods of Preference have been replaced by calls to
   * methods of the same name in this delegate class.
   */
  public class Preference_Delegate {
  
      @LayoutlibDelegate
      /*package*/ static View getView(Preference pref, View convertView, ViewGroup parent) {
          Context context = pref.getContext();
          BridgeContext bc = context instanceof BridgeContext ? ((BridgeContext) context) : null;
          convertView = pref.getView_Original(convertView, parent);
          if (bc != null) {
              Object cookie = bc.getCookie(pref);
              if (cookie != null) {
                  bc.addViewKey(convertView, cookie);
              }
          }
          return convertView;
      }
  
      /**
       * Inflates the parser and returns the ListView containing the Preferences.
       */
      public static View inflatePreference(Context context, XmlPullParser parser, ViewGroup root) {
          PreferenceManager pm = new PreferenceManager(context);
          PreferenceInflater inflater = new BridgePreferenceInflater(context, pm);
          PreferenceScreen ps = (PreferenceScreen) inflater.inflate(parser, null, true);
          pm.setPreferences(ps);
          ListView preferenceView = createContainerView(context, root);
          ps.bind(preferenceView);
          return preferenceView;
      }
  
      private static ListView createContainerView(Context context, ViewGroup root) {
          TypedArray a = context.obtainStyledAttributes(null, R.styleable.PreferenceFragment,
                  R.attr.preferenceFragmentStyle, 0);
          int mLayoutResId = a.getResourceId(R.styleable.PreferenceFragment_layout,
                          R.layout.preference_list_fragment);
          a.recycle();
  
          LayoutInflater inflater =
                  (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
          inflater.inflate(mLayoutResId, root, true);
  
          return (ListView) root.findViewById(android.R.id.list);
      }
  }
  