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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.preference;
     18 
     19 import com.android.layoutlib.bridge.android.BridgeContext;
     20 import com.android.layoutlib.bridge.android.BridgeXmlBlockParser;
     21 
     22 import android.content.Context;
     23 import android.util.AttributeSet;
     24 import android.view.InflateException;
     25 
     26 public class BridgePreferenceInflater extends PreferenceInflater {
     27 
     28     public BridgePreferenceInflater(Context context, PreferenceManager preferenceManager) {
     29         super(context, preferenceManager);
     30     }
     31 
     32     @Override
     33     public Preference createItem(String name, String prefix, AttributeSet attrs)
     34             throws ClassNotFoundException {
     35         Object viewKey = null;
     36         BridgeContext bc = null;
     37 
     38         Context context = getContext();
     39         if (context instanceof BridgeContext) {
     40             bc = (BridgeContext) context;
     41         }
     42 
     43         if (attrs instanceof BridgeXmlBlockParser) {
     44             viewKey = ((BridgeXmlBlockParser) attrs).getViewCookie();
     45         }
     46 
     47         Preference preference = null;
     48         try {
     49             preference = super.createItem(name, prefix, attrs);
     50         } catch (ClassNotFoundException | InflateException exception) {
     51             // name is probably not a valid preference type
     52             if (("android.support.v7.preference".equals(prefix) ||
     53                     "androidx.preference".equals(prefix)) &&
     54                     "SwitchPreferenceCompat".equals(name)) {
     55                 preference = super.createItem("SwitchPreference", prefix, attrs);
     56             }
     57         }
     58 
     59         if (viewKey != null && bc != null) {
     60             bc.addCookie(preference, viewKey);
     61         }
     62         return preference;
     63     }
     64 }
     65