1 /* 2 * Copyright (C) 2015 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 com.android.setupwizardlib.items; 18 19 import android.content.Context; 20 21 /** 22 * Inflate {@link Item} hierarchies from XML files. 23 * 24 * Modified from android.support.v7.preference.PreferenceInflater 25 */ 26 public class ItemInflater extends GenericInflater<ItemHierarchy> { 27 28 private static final String TAG = "ItemInflater"; 29 30 public interface ItemParent { 31 void addChild(ItemHierarchy child); 32 } 33 34 private final Context mContext; 35 36 public ItemInflater(Context context) { 37 super(context); 38 mContext = context; 39 setDefaultPackage(Item.class.getPackage().getName() + "."); 40 } 41 42 @Override 43 public ItemInflater cloneInContext(Context newContext) { 44 return new ItemInflater(newContext); 45 } 46 47 /** 48 * Return the context we are running in, for access to resources, class 49 * loader, etc. 50 */ 51 @Override 52 public Context getContext() { 53 return mContext; 54 } 55 56 @Override 57 protected void onAddChildItem(ItemHierarchy parent, ItemHierarchy child) { 58 if (parent instanceof ItemParent) { 59 ((ItemParent) parent).addChild(child); 60 } else { 61 throw new IllegalArgumentException("Cannot add child item to " + parent); 62 } 63 } 64 } 65
