1 /* 2 * Copyright (C) 2014 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.service.notification; 18 19 import android.annotation.SdkConstant; 20 import android.annotation.TestApi; 21 import android.app.ActivityManager; 22 import android.app.INotificationManager; 23 import android.app.Service; 24 import android.content.ComponentName; 25 import android.content.Context; 26 import android.content.Intent; 27 import android.net.Uri; 28 import android.os.Handler; 29 import android.os.IBinder; 30 import android.os.Message; 31 import android.os.RemoteException; 32 import android.os.ServiceManager; 33 import android.util.Log; 34 35 /** 36 * A service that provides conditions about boolean state. 37 * <p>To extend this class, you must declare the service in your manifest file with 38 * the {@link android.Manifest.permission#BIND_CONDITION_PROVIDER_SERVICE} permission 39 * and include an intent filter with the {@link #SERVICE_INTERFACE} action. If you want users to be 40 * able to create and update conditions for this service to monitor, include the 41 * {@link #META_DATA_RULE_TYPE} and {@link #META_DATA_CONFIGURATION_ACTIVITY} tags and request the 42 * {@link android.Manifest.permission#ACCESS_NOTIFICATION_POLICY} permission. For example:</p> 43 * <pre> 44 * <service android:name=".MyConditionProvider" 45 * android:label="@string/service_name" 46 * android:permission="android.permission.BIND_CONDITION_PROVIDER_SERVICE"> 47 * <intent-filter> 48 * <action android:name="android.service.notification.ConditionProviderService" /> 49 * </intent-filter> 50 * <meta-data 51 * android:name="android.service.zen.automatic.ruleType" 52 * android:value="@string/my_condition_rule"> 53 * </meta-data> 54 * <meta-data 55 * android:name="android.service.zen.automatic.configurationActivity" 56 * android:value="com.my.package/.MyConditionConfigurationActivity"> 57 * </meta-data> 58 * </service></pre> 59 * 60 * <p> Condition providers cannot be bound by the system on 61 * {@link ActivityManager#isLowRamDevice() low ram} devices</p> 62 * 63 * @deprecated Instead of using an automatically bound service, use 64 * {@link android.app.NotificationManager#setAutomaticZenRuleState(String, Condition)} to tell the 65 * system about the state of your rule. In order to maintain a link from 66 * Settings to your rule configuration screens, provide a configuration activity that handles 67 * {@link android.app.NotificationManager#ACTION_AUTOMATIC_ZEN_RULE} on your 68 * {@link android.app.AutomaticZenRule} via 69 * {@link android.app.AutomaticZenRule#setConfigurationActivity(ComponentName)}. 70 */ 71 @Deprecated 72 public abstract class ConditionProviderService extends Service { 73 private final String TAG = ConditionProviderService.class.getSimpleName() 74 + "[" + getClass().getSimpleName() + "]"; 75 76 private final H mHandler = new H(); 77 78 private Provider mProvider; 79 private INotificationManager mNoMan; 80 boolean mIsConnected; 81 82 /** 83 * The {@link Intent} that must be declared as handled by the service. 84 */ 85 @SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION) 86 public static final String SERVICE_INTERFACE 87 = "android.service.notification.ConditionProviderService"; 88 89 /** 90 * The name of the {@code meta-data} tag containing a localized name of the type of zen rules 91 * provided by this service. 92 * 93 * @deprecated see {@link android.app.NotificationManager#META_DATA_AUTOMATIC_RULE_TYPE}. 94 */ 95 @Deprecated 96 public static final String META_DATA_RULE_TYPE = "android.service.zen.automatic.ruleType"; 97 98 /** 99 * The name of the {@code meta-data} tag containing the {@link ComponentName} of an activity 100 * that allows users to configure the conditions provided by this service. 101 * 102 * @deprecated see {@link android.app.NotificationManager#ACTION_AUTOMATIC_ZEN_RULE}. 103 */ 104 @Deprecated 105 public static final String META_DATA_CONFIGURATION_ACTIVITY = 106 "android.service.zen.automatic.configurationActivity"; 107 108 /** 109 * The name of the {@code meta-data} tag containing the maximum number of rule instances that 110 * can be created for this rule type. Omit or enter a value <= 0 to allow unlimited instances. 111 * 112 * @deprecated see {@link android.app.NotificationManager#META_DATA_RULE_INSTANCE_LIMIT}. 113 */ 114 @Deprecated 115 public static final String META_DATA_RULE_INSTANCE_LIMIT = 116 "android.service.zen.automatic.ruleInstanceLimit"; 117 118 /** 119 * A String rule id extra passed to {@link #META_DATA_CONFIGURATION_ACTIVITY}. 120 * 121 * @deprecated see {@link android.app.NotificationManager#EXTRA_AUTOMATIC_RULE_ID}. 122 */ 123 @Deprecated 124 public static final String EXTRA_RULE_ID = "android.service.notification.extra.RULE_ID"; 125 126 /** 127 * Called when this service is connected. 128 */ onConnected()129 abstract public void onConnected(); 130 onRequestConditions(int relevance)131 public void onRequestConditions(int relevance) {} 132 133 /** 134 * Called by the system when there is a new {@link Condition} to be managed by this provider. 135 * @param conditionId the Uri describing the criteria of the condition. 136 */ onSubscribe(Uri conditionId)137 abstract public void onSubscribe(Uri conditionId); 138 139 /** 140 * Called by the system when a {@link Condition} has been deleted. 141 * @param conditionId the Uri describing the criteria of the deleted condition. 142 */ onUnsubscribe(Uri conditionId)143 abstract public void onUnsubscribe(Uri conditionId); 144 getNotificationInterface()145 private final INotificationManager getNotificationInterface() { 146 if (mNoMan == null) { 147 mNoMan = INotificationManager.Stub.asInterface( 148 ServiceManager.getService(Context.NOTIFICATION_SERVICE)); 149 } 150 return mNoMan; 151 } 152 153 /** 154 * Request that the provider be rebound, after a previous call to (@link #requestUnbind). 155 * 156 * <p>This method will fail for providers that have not been granted the permission by the user. 157 */ requestRebind(ComponentName componentName)158 public static final void requestRebind(ComponentName componentName) { 159 INotificationManager noMan = INotificationManager.Stub.asInterface( 160 ServiceManager.getService(Context.NOTIFICATION_SERVICE)); 161 try { 162 noMan.requestBindProvider(componentName); 163 } catch (RemoteException ex) { 164 throw ex.rethrowFromSystemServer(); 165 } 166 } 167 168 /** 169 * Request that the provider service be unbound. 170 * 171 * <p>This will no longer receive subscription updates and will not be able to update the 172 * state of conditions until {@link #requestRebind(ComponentName)} is called. 173 * The service will likely be killed by the system after this call. 174 * 175 * <p>The service should wait for the {@link #onConnected()} event before performing this 176 * operation. 177 */ requestUnbind()178 public final void requestUnbind() { 179 INotificationManager noMan = getNotificationInterface(); 180 try { 181 noMan.requestUnbindProvider(mProvider); 182 // Disable future messages. 183 mIsConnected = false; 184 } catch (RemoteException ex) { 185 throw ex.rethrowFromSystemServer(); 186 } 187 } 188 189 /** 190 * Informs the notification manager that the state of a Condition has changed. Use this method 191 * to put the system into Do Not Disturb mode or request that it exits Do Not Disturb mode. This 192 * call will be ignored unless there is an enabled {@link android.app.AutomaticZenRule} owned by 193 * service that has an {@link android.app.AutomaticZenRule#getConditionId()} equal to this 194 * {@link Condition#id}. 195 * @param condition the condition that has changed. 196 * 197 * @deprecated see 198 * {@link android.app.NotificationManager#setAutomaticZenRuleState(String, Condition)}. 199 */ 200 @Deprecated notifyCondition(Condition condition)201 public final void notifyCondition(Condition condition) { 202 if (condition == null) return; 203 notifyConditions(new Condition[]{ condition }); 204 } 205 206 /** 207 * Informs the notification manager that the state of one or more Conditions has changed. See 208 * {@link #notifyCondition(Condition)} for restrictions. 209 * @param conditions the changed conditions. 210 * 211 * @deprecated see 212 * {@link android.app.NotificationManager#setAutomaticZenRuleState(String, Condition)}. 213 */ 214 @Deprecated notifyConditions(Condition... conditions)215 public final void notifyConditions(Condition... conditions) { 216 if (!isBound() || conditions == null) return; 217 try { 218 getNotificationInterface().notifyConditions(getPackageName(), mProvider, conditions); 219 } catch (android.os.RemoteException ex) { 220 Log.v(TAG, "Unable to contact notification manager", ex); 221 } 222 } 223 224 @Override onBind(Intent intent)225 public IBinder onBind(Intent intent) { 226 if (mProvider == null) { 227 mProvider = new Provider(); 228 } 229 return mProvider; 230 } 231 232 /** 233 * @hide 234 */ 235 @TestApi isBound()236 public boolean isBound() { 237 if (!mIsConnected) { 238 Log.w(TAG, "Condition provider service not yet bound."); 239 } 240 return mIsConnected; 241 } 242 243 private final class Provider extends IConditionProvider.Stub { 244 @Override onConnected()245 public void onConnected() { 246 mIsConnected = true; 247 mHandler.obtainMessage(H.ON_CONNECTED).sendToTarget(); 248 } 249 250 @Override onSubscribe(Uri conditionId)251 public void onSubscribe(Uri conditionId) { 252 mHandler.obtainMessage(H.ON_SUBSCRIBE, conditionId).sendToTarget(); 253 } 254 255 @Override onUnsubscribe(Uri conditionId)256 public void onUnsubscribe(Uri conditionId) { 257 mHandler.obtainMessage(H.ON_UNSUBSCRIBE, conditionId).sendToTarget(); 258 } 259 } 260 261 private final class H extends Handler { 262 private static final int ON_CONNECTED = 1; 263 private static final int ON_SUBSCRIBE = 3; 264 private static final int ON_UNSUBSCRIBE = 4; 265 266 @Override handleMessage(Message msg)267 public void handleMessage(Message msg) { 268 String name = null; 269 if (!mIsConnected) { 270 return; 271 } 272 try { 273 switch(msg.what) { 274 case ON_CONNECTED: 275 name = "onConnected"; 276 onConnected(); 277 break; 278 case ON_SUBSCRIBE: 279 name = "onSubscribe"; 280 onSubscribe((Uri)msg.obj); 281 break; 282 case ON_UNSUBSCRIBE: 283 name = "onUnsubscribe"; 284 onUnsubscribe((Uri)msg.obj); 285 break; 286 } 287 } catch (Throwable t) { 288 Log.w(TAG, "Error running " + name, t); 289 } 290 } 291 } 292 } 293