1/* 2 * Copyright (C) 2007 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 17package com.android.phone; 18 19import static android.view.Window.PROGRESS_VISIBILITY_OFF; 20import static android.view.Window.PROGRESS_VISIBILITY_ON; 21 22import android.app.ListActivity; 23import android.content.AsyncQueryHandler; 24import android.content.ContentResolver; 25import android.content.Context; 26import android.content.Intent; 27import android.database.Cursor; 28import android.net.Uri; 29import android.os.Bundle; 30import android.provider.Settings; 31import android.util.Log; 32import android.view.Window; 33import android.widget.CursorAdapter; 34import android.widget.SimpleCursorAdapter; 35import android.widget.TextView; 36 37/** 38 * ADN List activity for the Phone app. 39 */ 40public class ADNList extends ListActivity { 41 protected static final String TAG = "ADNList"; 42 protected static final boolean DBG = false; 43 44 private static final String[] COLUMN_NAMES = new String[] { 45 "name", 46 "number", 47 "emails" 48 }; 49 50 protected static final int NAME_COLUMN = 0; 51 protected static final int NUMBER_COLUMN = 1; 52 protected static final int EMAILS_COLUMN = 2; 53 54 private static final int[] VIEW_NAMES = new int[] { 55 android.R.id.text1, 56 android.R.id.text2 57 }; 58 59 protected static final int QUERY_TOKEN = 0; 60 protected static final int INSERT_TOKEN = 1; 61 protected static final int UPDATE_TOKEN = 2; 62 protected static final int DELETE_TOKEN = 3; 63 64 65 protected QueryHandler mQueryHandler; 66 protected CursorAdapter mCursorAdapter; 67 protected Cursor mCursor = null; 68 69 private TextView mEmptyText; 70 71 protected int mInitialSelection = -1; 72 73 @Override 74 protected void onCreate(Bundle icicle) { 75 super.onCreate(icicle); 76 getWindow().requestFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 77 setContentView(R.layout.adn_list); 78 mEmptyText = (TextView) findViewById(android.R.id.empty); 79 mQueryHandler = new QueryHandler(getContentResolver()); 80 } 81 82 @Override 83 protected void onResume() { 84 super.onResume(); 85 query(); 86 } 87 88 @Override 89 protected void onStop() { 90 super.onStop(); 91 if (mCursor != null) { 92 mCursor.deactivate(); 93 } 94 } 95 96 protected Uri resolveIntent() { 97 Intent intent = getIntent(); 98 if (intent.getData() == null) { 99 intent.setData(Uri.parse("content://icc/adn")); 100 } 101 102 return intent.getData(); 103 } 104 105 private void query() { 106 Uri uri = resolveIntent(); 107 if (DBG) log("query: starting an async query"); 108 mQueryHandler.startQuery(QUERY_TOKEN, null, uri, COLUMN_NAMES, 109 null, null, null); 110 displayProgress(true); 111 } 112 113 private void reQuery() { 114 query(); 115 } 116 117 private void setAdapter() { 118 // NOTE: 119 // As it it written, the positioning code below is NOT working. 120 // However, this current non-working state is in compliance with 121 // the UI paradigm, so we can't really do much to change it. 122 123 // In the future, if we wish to get this "positioning" correct, 124 // we'll need to do the following: 125 // 1. Change the layout to in the cursor adapter to: 126 // android.R.layout.simple_list_item_checked 127 // 2. replace the selection / focus code with: 128 // getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE); 129 // getListView().setItemChecked(mInitialSelection, true); 130 131 // Since the positioning is really only useful for the dialer's 132 // SpecialCharSequence case (dialing '2#' to get to the 2nd 133 // contact for instance), it doesn't make sense to mess with 134 // the usability of the activity just for this case. 135 136 // These artifacts include: 137 // 1. UI artifacts (checkbox and highlight at the same time) 138 // 2. Allowing the user to edit / create new SIM contacts when 139 // the user is simply trying to retrieve a number into the d 140 // dialer. 141 142 if (mCursorAdapter == null) { 143 mCursorAdapter = newAdapter(); 144 145 setListAdapter(mCursorAdapter); 146 } else { 147 mCursorAdapter.changeCursor(mCursor); 148 } 149 150 if (mInitialSelection >=0 && mInitialSelection < mCursorAdapter.getCount()) { 151 setSelection(mInitialSelection); 152 getListView().setFocusableInTouchMode(true); 153 boolean gotfocus = getListView().requestFocus(); 154 } 155 } 156 157 protected CursorAdapter newAdapter() { 158 return new SimpleCursorAdapter(this, 159 android.R.layout.simple_list_item_2, 160 mCursor, COLUMN_NAMES, VIEW_NAMES); 161 } 162 163 private void displayProgress(boolean loading) { 164 if (DBG) log("displayProgress: " + loading); 165 166 mEmptyText.setText(loading ? R.string.simContacts_emptyLoading: 167 (isAirplaneModeOn(this) ? R.string.simContacts_airplaneMode : 168 R.string.simContacts_empty)); 169 getWindow().setFeatureInt( 170 Window.FEATURE_INDETERMINATE_PROGRESS, 171 loading ? PROGRESS_VISIBILITY_ON : PROGRESS_VISIBILITY_OFF); 172 } 173 174 private static boolean isAirplaneModeOn(Context context) { 175 return Settings.System.getInt(context.getContentResolver(), 176 Settings.System.AIRPLANE_MODE_ON, 0) != 0; 177 } 178 179 private class QueryHandler extends AsyncQueryHandler { 180 public QueryHandler(ContentResolver cr) { 181 super(cr); 182 } 183 184 @Override 185 protected void onQueryComplete(int token, Object cookie, Cursor c) { 186 if (DBG) log("onQueryComplete: cursor.count=" + c.getCount()); 187 mCursor = c; 188 setAdapter(); 189 displayProgress(false); 190 191 // Cursor is refreshed and inherited classes may have menu items depending on it. 192 invalidateOptionsMenu(); 193 } 194 195 @Override 196 protected void onInsertComplete(int token, Object cookie, Uri uri) { 197 if (DBG) log("onInsertComplete: requery"); 198 reQuery(); 199 } 200 201 @Override 202 protected void onUpdateComplete(int token, Object cookie, int result) { 203 if (DBG) log("onUpdateComplete: requery"); 204 reQuery(); 205 } 206 207 @Override 208 protected void onDeleteComplete(int token, Object cookie, int result) { 209 if (DBG) log("onDeleteComplete: requery"); 210 reQuery(); 211 } 212 } 213 214 protected void log(String msg) { 215 Log.d(TAG, "[ADNList] " + msg); 216 } 217} 218