1 /* 2 * Copyright (C) 2009 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.quicksearchbox.ui; 18 19 import android.view.View; 20 import android.view.ViewGroup; 21 import android.widget.BaseAdapter; 22 import android.widget.ListAdapter; 23 24 import com.android.quicksearchbox.SuggestionCursor; 25 import com.android.quicksearchbox.SuggestionPosition; 26 import com.android.quicksearchbox.Suggestions; 27 28 /** 29 * Uses a {@link Suggestions} object to back a {@link SuggestionsView}. 30 */ 31 public class SuggestionsListAdapter extends SuggestionsAdapterBase<ListAdapter> { 32 33 private Adapter mAdapter; 34 35 public SuggestionsListAdapter(SuggestionViewFactory viewFactory) { 36 super(viewFactory); 37 mAdapter = new Adapter(); 38 } 39 40 @Override 41 public boolean isEmpty() { 42 return mAdapter.getCount() == 0; 43 } 44 45 @Override 46 public SuggestionPosition getSuggestion(long suggestionId) { 47 return new SuggestionPosition(getCurrentSuggestions(), (int) suggestionId); 48 } 49 50 @Override 51 public BaseAdapter getListAdapter() { 52 return mAdapter; 53 } 54 55 @Override 56 public void notifyDataSetChanged() { 57 mAdapter.notifyDataSetChanged(); 58 } 59 60 @Override 61 public void notifyDataSetInvalidated() { 62 mAdapter.notifyDataSetInvalidated(); 63 } 64 65 class Adapter extends BaseAdapter { 66 67 @Override 68 public int getCount() { 69 SuggestionCursor s = getCurrentSuggestions(); 70 return s == null ? 0 : s.getCount(); 71 } 72 73 @Override 74 public Object getItem(int position) { 75 return getSuggestion(position); 76 } 77 78 @Override 79 public long getItemId(int position) { 80 return position; 81 } 82 83 @Override 84 public View getView(int position, View convertView, ViewGroup parent) { 85 return SuggestionsListAdapter.this.getView( 86 getCurrentSuggestions(), position, position, convertView, parent); 87 } 88 89 @Override 90 public int getItemViewType(int position) { 91 return getSuggestionViewType(getCurrentSuggestions(), position); 92 } 93 94 @Override 95 public int getViewTypeCount() { 96 return getSuggestionViewTypeCount(); 97 } 98 99 } 100 101 } 102
