| /* |
| * Copyright (C) 2007 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.util.XmlUtils; |
| |
| import java.io.IOException; |
| import java.util.Map; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import android.app.AliasActivity; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| |
| /** |
| * The {@link PreferenceInflater} is used to inflate preference hierarchies from |
| * XML files. |
| * <p> |
| * Do not construct this directly, instead use |
| * {@link Context#getSystemService(String)} with |
| * {@link Context#PREFERENCE_INFLATER_SERVICE}. |
| */ |
| class PreferenceInflater extends GenericInflater<Preference, PreferenceGroup> { |
| private static final String TAG = "PreferenceInflater"; |
| private static final String INTENT_TAG_NAME = "intent"; |
| private static final String EXTRA_TAG_NAME = "extra"; |
| |
| private PreferenceManager mPreferenceManager; |
| |
| public PreferenceInflater(Context context, PreferenceManager preferenceManager) { |
| super(context); |
| init(preferenceManager); |
| } |
| |
| PreferenceInflater(GenericInflater<Preference, PreferenceGroup> original, PreferenceManager preferenceManager, Context newContext) { |
| super(original, newContext); |
| init(preferenceManager); |
| } |
| |
| @Override |
| public GenericInflater<Preference, PreferenceGroup> cloneInContext(Context newContext) { |
| return new PreferenceInflater(this, mPreferenceManager, newContext); |
| } |
| |
| private void init(PreferenceManager preferenceManager) { |
| mPreferenceManager = preferenceManager; |
| setDefaultPackage("android.preference."); |
| } |
| |
| @Override |
| protected boolean onCreateCustomFromTag(XmlPullParser parser, Preference parentPreference, |
| AttributeSet attrs) throws XmlPullParserException { |
| final String tag = parser.getName(); |
| |
| if (tag.equals(INTENT_TAG_NAME)) { |
| Intent intent = null; |
| |
| try { |
| intent = Intent.parseIntent(getContext().getResources(), parser, attrs); |
| } catch (IOException e) { |
| XmlPullParserException ex = new XmlPullParserException( |
| "Error parsing preference"); |
| ex.initCause(e); |
| throw ex; |
| } |
| |
| if (intent != null) { |
| parentPreference.setIntent(intent); |
| } |
| |
| return true; |
| } else if (tag.equals(EXTRA_TAG_NAME)) { |
| getContext().getResources().parseBundleExtra(EXTRA_TAG_NAME, attrs, |
| parentPreference.getExtras()); |
| try { |
| XmlUtils.skipCurrentTag(parser); |
| } catch (IOException e) { |
| XmlPullParserException ex = new XmlPullParserException( |
| "Error parsing preference"); |
| ex.initCause(e); |
| throw ex; |
| } |
| return true; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| protected PreferenceGroup onMergeRoots(PreferenceGroup givenRoot, boolean attachToGivenRoot, |
| PreferenceGroup xmlRoot) { |
| // If we were given a Preferences, use it as the root (ignoring the root |
| // Preferences from the XML file). |
| if (givenRoot == null) { |
| xmlRoot.onAttachedToHierarchy(mPreferenceManager); |
| return xmlRoot; |
| } else { |
| return givenRoot; |
| } |
| } |
| |
| } |