1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * 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, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License. 15 */ 16 17 package com.android.cellbroadcastreceiver; 18 19 import android.content.Context; 20 import android.graphics.Typeface; 21 import android.telephony.CellBroadcastMessage; 22 import android.telephony.SmsCbCmasInfo; 23 import android.telephony.SmsCbEtwsInfo; 24 import android.text.Spannable; 25 import android.text.SpannableStringBuilder; 26 import android.text.style.StyleSpan; 27 28 /** 29 * Returns the string resource ID's for CMAS and ETWS emergency alerts. 30 */ 31 public class CellBroadcastResources { 32 33 private CellBroadcastResources() { 34 } 35 36 /** 37 * Returns a styled CharSequence containing the message date/time and alert details. 38 * @param context a Context for resource string access 39 * @return a CharSequence for display in the broadcast alert dialog 40 */ 41 public static CharSequence getMessageDetails(Context context, CellBroadcastMessage cbm) { 42 SpannableStringBuilder buf = new SpannableStringBuilder(); 43 44 // Alert date/time 45 int start = buf.length(); 46 buf.append(context.getString(R.string.delivery_time_heading)); 47 int end = buf.length(); 48 buf.setSpan(new StyleSpan(Typeface.BOLD), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 49 buf.append(" "); 50 buf.append(cbm.getDateString(context)); 51 52 if (cbm.isCmasMessage()) { 53 // CMAS category, response type, severity, urgency, certainty 54 appendCmasAlertDetails(context, buf, cbm.getCmasWarningInfo()); 55 } 56 57 return buf; 58 } 59 60 private static void appendCmasAlertDetails(Context context, SpannableStringBuilder buf, 61 SmsCbCmasInfo cmasInfo) { 62 // CMAS category 63 int categoryId = getCmasCategoryResId(cmasInfo); 64 if (categoryId != 0) { 65 appendMessageDetail(context, buf, R.string.cmas_category_heading, categoryId); 66 } 67 68 // CMAS response type 69 int responseId = getCmasResponseResId(cmasInfo); 70 if (responseId != 0) { 71 appendMessageDetail(context, buf, R.string.cmas_response_heading, responseId); 72 } 73 74 // CMAS severity 75 int severityId = getCmasSeverityResId(cmasInfo); 76 if (severityId != 0) { 77 appendMessageDetail(context, buf, R.string.cmas_severity_heading, severityId); 78 } 79 80 // CMAS urgency 81 int urgencyId = getCmasUrgencyResId(cmasInfo); 82 if (urgencyId != 0) { 83 appendMessageDetail(context, buf, R.string.cmas_urgency_heading, urgencyId); 84 } 85 86 // CMAS certainty 87 int certaintyId = getCmasCertaintyResId(cmasInfo); 88 if (certaintyId != 0) { 89 appendMessageDetail(context, buf, R.string.cmas_certainty_heading, certaintyId); 90 } 91 } 92 93 private static void appendMessageDetail(Context context, SpannableStringBuilder buf, 94 int typeId, int valueId) { 95 if (buf.length() != 0) { 96 buf.append("\n"); 97 } 98 int start = buf.length(); 99 buf.append(context.getString(typeId)); 100 int end = buf.length(); 101 buf.setSpan(new StyleSpan(Typeface.BOLD), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 102 buf.append(" "); 103 buf.append(context.getString(valueId)); 104 } 105 106 /** 107 * Returns the string resource ID for the CMAS category. 108 * @return a string resource ID, or 0 if the CMAS category is unknown or not present 109 */ 110 private static int getCmasCategoryResId(SmsCbCmasInfo cmasInfo) { 111 switch (cmasInfo.getCategory()) { 112 case SmsCbCmasInfo.CMAS_CATEGORY_GEO: 113 return R.string.cmas_category_geo; 114 115 case SmsCbCmasInfo.CMAS_CATEGORY_MET: 116 return R.string.cmas_category_met; 117 118 case SmsCbCmasInfo.CMAS_CATEGORY_SAFETY: 119 return R.string.cmas_category_safety; 120 121 case SmsCbCmasInfo.CMAS_CATEGORY_SECURITY: 122 return R.string.cmas_category_security; 123 124 case SmsCbCmasInfo.CMAS_CATEGORY_RESCUE: 125 return R.string.cmas_category_rescue; 126 127 case SmsCbCmasInfo.CMAS_CATEGORY_FIRE: 128 return R.string.cmas_category_fire; 129 130 case SmsCbCmasInfo.CMAS_CATEGORY_HEALTH: 131 return R.string.cmas_category_health; 132 133 case SmsCbCmasInfo.CMAS_CATEGORY_ENV: 134 return R.string.cmas_category_env; 135 136 case SmsCbCmasInfo.CMAS_CATEGORY_TRANSPORT: 137 return R.string.cmas_category_transport; 138 139 case SmsCbCmasInfo.CMAS_CATEGORY_INFRA: 140 return R.string.cmas_category_infra; 141 142 case SmsCbCmasInfo.CMAS_CATEGORY_CBRNE: 143 return R.string.cmas_category_cbrne; 144 145 case SmsCbCmasInfo.CMAS_CATEGORY_OTHER: 146 return R.string.cmas_category_other; 147 148 default: 149 return 0; 150 } 151 } 152 153 /** 154 * Returns the string resource ID for the CMAS response type. 155 * @return a string resource ID, or 0 if the CMAS response type is unknown or not present 156 */ 157 private static int getCmasResponseResId(SmsCbCmasInfo cmasInfo) { 158 switch (cmasInfo.getResponseType()) { 159 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_SHELTER: 160 return R.string.cmas_response_shelter; 161 162 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_EVACUATE: 163 return R.string.cmas_response_evacuate; 164 165 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_PREPARE: 166 return R.string.cmas_response_prepare; 167 168 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_EXECUTE: 169 return R.string.cmas_response_execute; 170 171 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_MONITOR: 172 return R.string.cmas_response_monitor; 173 174 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_AVOID: 175 return R.string.cmas_response_avoid; 176 177 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_ASSESS: 178 return R.string.cmas_response_assess; 179 180 case SmsCbCmasInfo.CMAS_RESPONSE_TYPE_NONE: 181 return R.string.cmas_response_none; 182 183 default: 184 return 0; 185 } 186 } 187 188 /** 189 * Returns the string resource ID for the CMAS severity. 190 * @return a string resource ID, or 0 if the CMAS severity is unknown or not present 191 */ 192 private static int getCmasSeverityResId(SmsCbCmasInfo cmasInfo) { 193 switch (cmasInfo.getSeverity()) { 194 case SmsCbCmasInfo.CMAS_SEVERITY_EXTREME: 195 return R.string.cmas_severity_extreme; 196 197 case SmsCbCmasInfo.CMAS_SEVERITY_SEVERE: 198 return R.string.cmas_severity_severe; 199 200 default: 201 return 0; 202 } 203 } 204 205 /** 206 * Returns the string resource ID for the CMAS urgency. 207 * @return a string resource ID, or 0 if the CMAS urgency is unknown or not present 208 */ 209 private static int getCmasUrgencyResId(SmsCbCmasInfo cmasInfo) { 210 switch (cmasInfo.getUrgency()) { 211 case SmsCbCmasInfo.CMAS_URGENCY_IMMEDIATE: 212 return R.string.cmas_urgency_immediate; 213 214 case SmsCbCmasInfo.CMAS_URGENCY_EXPECTED: 215 return R.string.cmas_urgency_expected; 216 217 default: 218 return 0; 219 } 220 } 221 222 /** 223 * Returns the string resource ID for the CMAS certainty. 224 * @return a string resource ID, or 0 if the CMAS certainty is unknown or not present 225 */ 226 private static int getCmasCertaintyResId(SmsCbCmasInfo cmasInfo) { 227 switch (cmasInfo.getCertainty()) { 228 case SmsCbCmasInfo.CMAS_CERTAINTY_OBSERVED: 229 return R.string.cmas_certainty_observed; 230 231 case SmsCbCmasInfo.CMAS_CERTAINTY_LIKELY: 232 return R.string.cmas_certainty_likely; 233 234 default: 235 return 0; 236 } 237 } 238 239 public static int getDialogTitleResource(CellBroadcastMessage cbm) { 240 // ETWS warning types 241 SmsCbEtwsInfo etwsInfo = cbm.getEtwsWarningInfo(); 242 if (etwsInfo != null) { 243 switch (etwsInfo.getWarningType()) { 244 case SmsCbEtwsInfo.ETWS_WARNING_TYPE_EARTHQUAKE: 245 return R.string.etws_earthquake_warning; 246 247 case SmsCbEtwsInfo.ETWS_WARNING_TYPE_TSUNAMI: 248 return R.string.etws_tsunami_warning; 249 250 case SmsCbEtwsInfo.ETWS_WARNING_TYPE_EARTHQUAKE_AND_TSUNAMI: 251 return R.string.etws_earthquake_and_tsunami_warning; 252 253 case SmsCbEtwsInfo.ETWS_WARNING_TYPE_TEST_MESSAGE: 254 return R.string.etws_test_message; 255 256 case SmsCbEtwsInfo.ETWS_WARNING_TYPE_OTHER_EMERGENCY: 257 default: 258 return R.string.etws_other_emergency_type; 259 } 260 } 261 262 // CMAS warning types 263 SmsCbCmasInfo cmasInfo = cbm.getCmasWarningInfo(); 264 if (cmasInfo != null) { 265 switch (cmasInfo.getMessageClass()) { 266 case SmsCbCmasInfo.CMAS_CLASS_PRESIDENTIAL_LEVEL_ALERT: 267 return R.string.cmas_presidential_level_alert; 268 269 case SmsCbCmasInfo.CMAS_CLASS_EXTREME_THREAT: 270 return R.string.cmas_extreme_alert; 271 272 case SmsCbCmasInfo.CMAS_CLASS_SEVERE_THREAT: 273 return R.string.cmas_severe_alert; 274 275 case SmsCbCmasInfo.CMAS_CLASS_CHILD_ABDUCTION_EMERGENCY: 276 return R.string.cmas_amber_alert; 277 278 case SmsCbCmasInfo.CMAS_CLASS_REQUIRED_MONTHLY_TEST: 279 return R.string.cmas_required_monthly_test; 280 281 case SmsCbCmasInfo.CMAS_CLASS_CMAS_EXERCISE: 282 return R.string.cmas_exercise_alert; 283 284 case SmsCbCmasInfo.CMAS_CLASS_OPERATOR_DEFINED_USE: 285 return R.string.cmas_operator_defined_alert; 286 287 default: 288 return R.string.pws_other_message_identifiers; 289 } 290 } 291 292 if (CellBroadcastConfigService.isEmergencyAlertMessage(cbm)) { 293 return R.string.pws_other_message_identifiers; 294 } else { 295 return R.string.cb_other_message_identifiers; 296 } 297 } 298 } 299
