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/*
* 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* Through the layoutlib_create tool, selected methods of Preference have been replaced by calls to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);
}
}
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