1 /* 2 * Copyright (C) 2010 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 com.android.quicksearchbox.Suggestion; 20 import com.android.quicksearchbox.SuggestionCursor; 21 22 import android.content.Context; 23 import android.view.LayoutInflater; 24 import android.view.View; 25 import android.view.ViewGroup; 26 27 import java.util.Collection; 28 import java.util.Collections; 29 30 /** 31 * Suggestion view factory that inflates views from XML. 32 */ 33 public class SuggestionViewInflater implements SuggestionViewFactory { 34 35 private final String mViewType; 36 private final Class<?> mViewClass; 37 private final int mLayoutId; 38 private final Context mContext; 39 40 /** 41 * @param viewType The unique type of views inflated by this factory 42 * @param viewClass The expected type of view classes. 43 * @param layoutId resource ID of layout to use. 44 * @param context Context to use for inflating the views. 45 */ SuggestionViewInflater(String viewType, Class<? extends SuggestionView> viewClass, int layoutId, Context context)46 public SuggestionViewInflater(String viewType, Class<? extends SuggestionView> viewClass, 47 int layoutId, Context context) { 48 mViewType = viewType; 49 mViewClass = viewClass; 50 mLayoutId = layoutId; 51 mContext = context; 52 } 53 getInflater()54 protected LayoutInflater getInflater() { 55 return (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 56 } 57 getSuggestionViewTypes()58 public Collection<String> getSuggestionViewTypes() { 59 return Collections.singletonList(mViewType); 60 } 61 getView(SuggestionCursor suggestion, String userQuery, View convertView, ViewGroup parent)62 public View getView(SuggestionCursor suggestion, String userQuery, 63 View convertView, ViewGroup parent) { 64 if (convertView == null || !convertView.getClass().equals(mViewClass)) { 65 int layoutId = mLayoutId; 66 convertView = getInflater().inflate(layoutId, parent, false); 67 } 68 if (!(convertView instanceof SuggestionView)) { 69 throw new IllegalArgumentException("Not a SuggestionView: " + convertView); 70 } 71 ((SuggestionView) convertView).bindAsSuggestion(suggestion, userQuery); 72 return convertView; 73 } 74 getViewType(Suggestion suggestion)75 public String getViewType(Suggestion suggestion) { 76 return mViewType; 77 } 78 canCreateView(Suggestion suggestion)79 public boolean canCreateView(Suggestion suggestion) { 80 return true; 81 } 82 83 } 84