1 /* 2 * Copyright (C) 2006 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.widget; 18 19 import android.content.Context; 20 import android.database.Cursor; 21 import android.view.View; 22 import android.view.ViewGroup; 23 import android.view.LayoutInflater; 24 25 /** 26 * A fairly simple ExpandableListAdapter that creates views defined in an XML 27 * file. You can specify the XML file that defines the appearance of the views. 28 */ 29 public abstract class ResourceCursorTreeAdapter extends CursorTreeAdapter { 30 private int mCollapsedGroupLayout; 31 private int mExpandedGroupLayout; 32 private int mChildLayout; 33 private int mLastChildLayout; 34 private LayoutInflater mInflater; 35 36 /** 37 * Constructor. 38 * 39 * @param context The context where the ListView associated with this 40 * SimpleListItemFactory is running 41 * @param cursor The database cursor 42 * @param collapsedGroupLayout resource identifier of a layout file that 43 * defines the views for collapsed groups. 44 * @param expandedGroupLayout resource identifier of a layout file that 45 * defines the views for expanded groups. 46 * @param childLayout resource identifier of a layout file that defines the 47 * views for all children but the last.. 48 * @param lastChildLayout resource identifier of a layout file that defines 49 * the views for the last child of a group. 50 */ ResourceCursorTreeAdapter(Context context, Cursor cursor, int collapsedGroupLayout, int expandedGroupLayout, int childLayout, int lastChildLayout)51 public ResourceCursorTreeAdapter(Context context, Cursor cursor, int collapsedGroupLayout, 52 int expandedGroupLayout, int childLayout, int lastChildLayout) { 53 super(cursor, context); 54 55 mCollapsedGroupLayout = collapsedGroupLayout; 56 mExpandedGroupLayout = expandedGroupLayout; 57 mChildLayout = childLayout; 58 mLastChildLayout = lastChildLayout; 59 60 mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 61 } 62 63 /** 64 * Constructor. 65 * 66 * @param context The context where the ListView associated with this 67 * SimpleListItemFactory is running 68 * @param cursor The database cursor 69 * @param collapsedGroupLayout resource identifier of a layout file that 70 * defines the views for collapsed groups. 71 * @param expandedGroupLayout resource identifier of a layout file that 72 * defines the views for expanded groups. 73 * @param childLayout resource identifier of a layout file that defines the 74 * views for all children. 75 */ ResourceCursorTreeAdapter(Context context, Cursor cursor, int collapsedGroupLayout, int expandedGroupLayout, int childLayout)76 public ResourceCursorTreeAdapter(Context context, Cursor cursor, int collapsedGroupLayout, 77 int expandedGroupLayout, int childLayout) { 78 this(context, cursor, collapsedGroupLayout, expandedGroupLayout, childLayout, childLayout); 79 } 80 81 /** 82 * Constructor. 83 * 84 * @param context The context where the ListView associated with this 85 * SimpleListItemFactory is running 86 * @param cursor The database cursor 87 * @param groupLayout resource identifier of a layout file that defines the 88 * views for all groups. 89 * @param childLayout resource identifier of a layout file that defines the 90 * views for all children. 91 */ ResourceCursorTreeAdapter(Context context, Cursor cursor, int groupLayout, int childLayout)92 public ResourceCursorTreeAdapter(Context context, Cursor cursor, int groupLayout, 93 int childLayout) { 94 this(context, cursor, groupLayout, groupLayout, childLayout, childLayout); 95 } 96 97 @Override newChildView(Context context, Cursor cursor, boolean isLastChild, ViewGroup parent)98 public View newChildView(Context context, Cursor cursor, boolean isLastChild, 99 ViewGroup parent) { 100 return mInflater.inflate((isLastChild) ? mLastChildLayout : mChildLayout, parent, false); 101 } 102 103 @Override newGroupView(Context context, Cursor cursor, boolean isExpanded, ViewGroup parent)104 public View newGroupView(Context context, Cursor cursor, boolean isExpanded, ViewGroup parent) { 105 return mInflater.inflate((isExpanded) ? mExpandedGroupLayout : mCollapsedGroupLayout, 106 parent, false); 107 } 108 109 } 110