| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.car; |
| |
| import static android.car.CarLibLog.TAG_CAR; |
| |
| import android.annotation.IntDef; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.SdkConstant; |
| import android.annotation.SdkConstant.SdkConstantType; |
| import android.annotation.SystemApi; |
| import android.car.cluster.CarInstrumentClusterManager; |
| import android.car.cluster.ClusterActivityState; |
| import android.car.content.pm.CarPackageManager; |
| import android.car.diagnostic.CarDiagnosticManager; |
| import android.car.drivingstate.CarDrivingStateManager; |
| import android.car.drivingstate.CarUxRestrictionsManager; |
| import android.car.hardware.CarSensorManager; |
| import android.car.hardware.CarVendorExtensionManager; |
| import android.car.hardware.cabin.CarCabinManager; |
| import android.car.hardware.hvac.CarHvacManager; |
| import android.car.hardware.power.CarPowerManager; |
| import android.car.hardware.property.CarPropertyManager; |
| import android.car.hardware.property.ICarProperty; |
| import android.car.media.CarAudioManager; |
| import android.car.media.CarMediaManager; |
| import android.car.navigation.CarNavigationStatusManager; |
| import android.car.settings.CarConfigurationManager; |
| import android.car.storagemonitoring.CarStorageMonitoringManager; |
| import android.car.test.CarTestManagerBinderWrapper; |
| import android.car.trust.CarTrustAgentEnrollmentManager; |
| import android.car.vms.VmsSubscriberManager; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.ServiceConnection; |
| import android.content.pm.PackageManager; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.util.Log; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.Preconditions; |
| |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| import java.util.HashMap; |
| |
| /** |
| * Top level car API for embedded Android Auto deployments. |
| * This API works only for devices with {@link PackageManager#FEATURE_AUTOMOTIVE} |
| * Calling this API on a device with no such feature will lead to an exception. |
| */ |
| public final class Car { |
| |
| /** |
| * Binder service name of car service registered to service manager. |
| * |
| * @hide |
| */ |
| public static final String CAR_SERVICE_BINDER_SERVICE_NAME = "car_service"; |
| /** |
| * Service name for {@link CarSensorManager}, to be used in {@link #getCarManager(String)}. |
| * |
| * @deprecated {@link CarSensorManager} is deprecated. Use {@link CarPropertyManager} instead. |
| */ |
| @Deprecated |
| public static final String SENSOR_SERVICE = "sensor"; |
| |
| /** Service name for {@link CarInfoManager}, to be used in {@link #getCarManager(String)}. */ |
| public static final String INFO_SERVICE = "info"; |
| |
| /** Service name for {@link CarAppFocusManager}. */ |
| public static final String APP_FOCUS_SERVICE = "app_focus"; |
| |
| /** Service name for {@link CarPackageManager} */ |
| public static final String PACKAGE_SERVICE = "package"; |
| |
| /** Service name for {@link CarAudioManager} */ |
| public static final String AUDIO_SERVICE = "audio"; |
| |
| /** Service name for {@link CarNavigationStatusManager} */ |
| public static final String CAR_NAVIGATION_SERVICE = "car_navigation_service"; |
| |
| /** |
| * Service name for {@link CarInstrumentClusterManager} |
| * |
| * @deprecated CarInstrumentClusterManager is being deprecated |
| * @hide |
| */ |
| @Deprecated |
| public static final String CAR_INSTRUMENT_CLUSTER_SERVICE = "cluster_service"; |
| |
| /** |
| * Service name for {@link CarCabinManager}. |
| * |
| * @deprecated {@link CarCabinManager} is deprecated. Use {@link CarPropertyManager} instead. |
| * @hide |
| */ |
| @Deprecated |
| @SystemApi |
| public static final String CABIN_SERVICE = "cabin"; |
| |
| /** |
| * @hide |
| */ |
| @SystemApi |
| public static final String DIAGNOSTIC_SERVICE = "diagnostic"; |
| |
| /** |
| * Service name for {@link CarHvacManager} |
| * @deprecated {@link CarHvacManager} is deprecated. Use {@link CarPropertyManager} instead. |
| * @hide |
| */ |
| @Deprecated |
| @SystemApi |
| public static final String HVAC_SERVICE = "hvac"; |
| |
| /** |
| * @hide |
| */ |
| @SystemApi |
| public static final String POWER_SERVICE = "power"; |
| |
| /** |
| * @hide |
| */ |
| @SystemApi |
| public static final String PROJECTION_SERVICE = "projection"; |
| |
| /** |
| * Service name for {@link CarPropertyManager} |
| */ |
| public static final String PROPERTY_SERVICE = "property"; |
| |
| /** |
| * Service name for {@link CarVendorExtensionManager} |
| * |
| * @deprecated {@link CarVendorExtensionManager} is deprecated. |
| * Use {@link CarPropertyManager} instead. |
| * @hide |
| */ |
| @Deprecated |
| @SystemApi |
| public static final String VENDOR_EXTENSION_SERVICE = "vendor_extension"; |
| |
| /** |
| * @hide |
| */ |
| public static final String BLUETOOTH_SERVICE = "car_bluetooth"; |
| |
| /** |
| * @hide |
| */ |
| @SystemApi |
| public static final String VMS_SUBSCRIBER_SERVICE = "vehicle_map_subscriber_service"; |
| |
| /** |
| * Service name for {@link CarDrivingStateManager} |
| * @hide |
| */ |
| @SystemApi |
| public static final String CAR_DRIVING_STATE_SERVICE = "drivingstate"; |
| |
| /** |
| * Service name for {@link CarUxRestrictionsManager} |
| */ |
| public static final String CAR_UX_RESTRICTION_SERVICE = "uxrestriction"; |
| |
| /** |
| * Service name for {@link android.car.settings.CarConfigurationManager} |
| */ |
| public static final String CAR_CONFIGURATION_SERVICE = "configuration"; |
| |
| /** |
| * Service name for {@link android.car.media.CarMediaManager} |
| * @hide |
| */ |
| public static final String CAR_MEDIA_SERVICE = "car_media"; |
| |
| /** |
| * |
| * Service name for {@link android.car.CarBugreportManager} |
| * @hide |
| */ |
| public static final String CAR_BUGREPORT_SERVICE = "car_bugreport"; |
| |
| /** |
| * @hide |
| */ |
| @SystemApi |
| public static final String STORAGE_MONITORING_SERVICE = "storage_monitoring"; |
| |
| /** |
| * Service name for {@link android.car.trust.CarTrustAgentEnrollmentManager} |
| * @hide |
| */ |
| @SystemApi |
| public static final String CAR_TRUST_AGENT_ENROLLMENT_SERVICE = "trust_enroll"; |
| |
| /** |
| * Service for testing. This is system app only feature. |
| * Service name for {@link CarTestManager}, to be used in {@link #getCarManager(String)}. |
| * @hide |
| */ |
| @SystemApi |
| public static final String TEST_SERVICE = "car-service-test"; |
| |
| /** Permission necessary to access car's mileage information. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_MILEAGE = "android.car.permission.CAR_MILEAGE"; |
| |
| /** Permission necessary to access car's energy information. */ |
| public static final String PERMISSION_ENERGY = "android.car.permission.CAR_ENERGY"; |
| |
| /** Permission necessary to access car's VIN information */ |
| public static final String PERMISSION_IDENTIFICATION = |
| "android.car.permission.CAR_IDENTIFICATION"; |
| |
| /** Permission necessary to access car's speed. */ |
| public static final String PERMISSION_SPEED = "android.car.permission.CAR_SPEED"; |
| |
| /** Permission necessary to access car's dynamics state. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_DYNAMICS_STATE = |
| "android.car.permission.CAR_DYNAMICS_STATE"; |
| |
| /** Permission necessary to access car's fuel door and ev charge port. */ |
| public static final String PERMISSION_ENERGY_PORTS = "android.car.permission.CAR_ENERGY_PORTS"; |
| |
| /** Permission necessary to read car's exterior lights information. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_EXTERIOR_LIGHTS = |
| "android.car.permission.CAR_EXTERIOR_LIGHTS"; |
| |
| /** |
| * Permission necessary to read car's interior lights information. |
| */ |
| public static final String PERMISSION_READ_INTERIOR_LIGHTS = |
| "android.car.permission.READ_CAR_INTERIOR_LIGHTS"; |
| |
| /** Permission necessary to control car's exterior lights. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CONTROL_EXTERIOR_LIGHTS = |
| "android.car.permission.CONTROL_CAR_EXTERIOR_LIGHTS"; |
| |
| /** |
| * Permission necessary to control car's interior lights. |
| */ |
| public static final String PERMISSION_CONTROL_INTERIOR_LIGHTS = |
| "android.car.permission.CONTROL_CAR_INTERIOR_LIGHTS"; |
| |
| /** Permission necessary to access car's powertrain information.*/ |
| public static final String PERMISSION_POWERTRAIN = "android.car.permission.CAR_POWERTRAIN"; |
| |
| /** |
| * Permission necessary to change car audio volume through {@link CarAudioManager}. |
| */ |
| public static final String PERMISSION_CAR_CONTROL_AUDIO_VOLUME = |
| "android.car.permission.CAR_CONTROL_AUDIO_VOLUME"; |
| |
| /** |
| * Permission necessary to change car audio settings through {@link CarAudioManager}. |
| */ |
| public static final String PERMISSION_CAR_CONTROL_AUDIO_SETTINGS = |
| "android.car.permission.CAR_CONTROL_AUDIO_SETTINGS"; |
| |
| /** |
| * Permission necessary to receive full audio ducking events from car audio focus handler. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_RECEIVE_CAR_AUDIO_DUCKING_EVENTS = |
| "android.car.permission.RECEIVE_CAR_AUDIO_DUCKING_EVENTS"; |
| |
| /** |
| * Permission necessary to use {@link CarNavigationStatusManager}. |
| */ |
| public static final String PERMISSION_CAR_NAVIGATION_MANAGER = |
| "android.car.permission.CAR_NAVIGATION_MANAGER"; |
| |
| /** |
| * Permission necessary to start activities in the instrument cluster through |
| * {@link CarInstrumentClusterManager} |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_INSTRUMENT_CLUSTER_CONTROL = |
| "android.car.permission.CAR_INSTRUMENT_CLUSTER_CONTROL"; |
| |
| /** |
| * Application must have this permission in order to be launched in the instrument cluster |
| * display. |
| * |
| * @hide |
| */ |
| public static final String PERMISSION_CAR_DISPLAY_IN_CLUSTER = |
| "android.car.permission.CAR_DISPLAY_IN_CLUSTER"; |
| |
| /** Permission necessary to use {@link CarInfoManager}. */ |
| public static final String PERMISSION_CAR_INFO = "android.car.permission.CAR_INFO"; |
| |
| /** Permission necessary to read temperature of car's exterior environment. */ |
| public static final String PERMISSION_EXTERIOR_ENVIRONMENT = |
| "android.car.permission.CAR_EXTERIOR_ENVIRONMENT"; |
| |
| /** |
| * Permission necessary to access car specific communication channel. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_VENDOR_EXTENSION = |
| "android.car.permission.CAR_VENDOR_EXTENSION"; |
| |
| /** |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CONTROL_APP_BLOCKING = |
| "android.car.permission.CONTROL_APP_BLOCKING"; |
| |
| /** |
| * Permission necessary to access car's engine information. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_ENGINE_DETAILED = |
| "android.car.permission.CAR_ENGINE_DETAILED"; |
| |
| /** |
| * Permission necessary to access car's tire pressure information. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_TIRES = "android.car.permission.CAR_TIRES"; |
| |
| /** |
| * Permission necessary to access car's steering angle information. |
| */ |
| public static final String PERMISSION_READ_STEERING_STATE = |
| "android.car.permission.READ_CAR_STEERING"; |
| |
| /** |
| * Permission necessary to read and write display units for distance, fuel volume, tire pressure |
| * and ev battery. |
| */ |
| public static final String PERMISSION_READ_DISPLAY_UNITS = |
| "android.car.permission.READ_CAR_DISPLAY_UNITS"; |
| /** |
| * Permission necessary to control display units for distance, fuel volume, tire pressure |
| * and ev battery. |
| */ |
| public static final String PERMISSION_CONTROL_DISPLAY_UNITS = |
| "android.car.permission.CONTROL_CAR_DISPLAY_UNITS"; |
| |
| /** |
| * Permission necessary to control car's door. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CONTROL_CAR_DOORS = |
| "android.car.permission.CONTROL_CAR_DOORS"; |
| |
| /** |
| * Permission necessary to control car's windows. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CONTROL_CAR_WINDOWS = |
| "android.car.permission.CONTROL_CAR_WINDOWS"; |
| |
| /** |
| * Permission necessary to control car's seats. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CONTROL_CAR_SEATS = |
| "android.car.permission.CONTROL_CAR_SEATS"; |
| |
| /** |
| * Permission necessary to control car's mirrors. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CONTROL_CAR_MIRRORS = |
| "android.car.permission.CONTROL_CAR_MIRRORS"; |
| |
| /** |
| * Permission necessary to access Car HVAC APIs. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CONTROL_CAR_CLIMATE = |
| "android.car.permission.CONTROL_CAR_CLIMATE"; |
| |
| /** |
| * Permission necessary to access Car POWER APIs. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_POWER = "android.car.permission.CAR_POWER"; |
| |
| /** |
| * Permission necessary to access Car PROJECTION system APIs. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_PROJECTION = "android.car.permission.CAR_PROJECTION"; |
| |
| /** |
| * Permission necessary to access projection status. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_PROJECTION_STATUS = |
| "android.car.permission.ACCESS_CAR_PROJECTION_STATUS"; |
| |
| /** |
| * Permission necessary to mock vehicle hal for testing. |
| * @hide |
| * @deprecated mocking vehicle HAL in car service is no longer supported. |
| */ |
| @SystemApi |
| public static final String PERMISSION_MOCK_VEHICLE_HAL = |
| "android.car.permission.CAR_MOCK_VEHICLE_HAL"; |
| |
| /** |
| * Permission necessary to access CarTestService. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_TEST_SERVICE = |
| "android.car.permission.CAR_TEST_SERVICE"; |
| |
| /** |
| * Permission necessary to access CarDrivingStateService to get a Car's driving state. |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_DRIVING_STATE = |
| "android.car.permission.CAR_DRIVING_STATE"; |
| |
| /** |
| * Permission necessary to access VMS client service. |
| * |
| * @hide |
| */ |
| public static final String PERMISSION_BIND_VMS_CLIENT = |
| "android.car.permission.BIND_VMS_CLIENT"; |
| |
| /** |
| * Permissions necessary to access VMS publisher APIs. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_VMS_PUBLISHER = "android.car.permission.VMS_PUBLISHER"; |
| |
| /** |
| * Permissions necessary to access VMS subscriber APIs. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_VMS_SUBSCRIBER = "android.car.permission.VMS_SUBSCRIBER"; |
| |
| /** |
| * Permissions necessary to read diagnostic information, including vendor-specific bits. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_DIAGNOSTIC_READ_ALL = |
| "android.car.permission.CAR_DIAGNOSTICS"; |
| |
| /** |
| * Permissions necessary to clear diagnostic information. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_DIAGNOSTIC_CLEAR = |
| "android.car.permission.CLEAR_CAR_DIAGNOSTICS"; |
| |
| /** |
| * Permission necessary to configure UX restrictions through {@link CarUxRestrictionsManager}. |
| * |
| * @hide |
| */ |
| public static final String PERMISSION_CAR_UX_RESTRICTIONS_CONFIGURATION = |
| "android.car.permission.CAR_UX_RESTRICTIONS_CONFIGURATION"; |
| |
| /** |
| * Permissions necessary to clear diagnostic information. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_STORAGE_MONITORING = |
| "android.car.permission.STORAGE_MONITORING"; |
| |
| /** |
| * Permission necessary to enroll a device as a trusted authenticator device. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String PERMISSION_CAR_ENROLL_TRUST = |
| "android.car.permission.CAR_ENROLL_TRUST"; |
| |
| /** Type of car connection: platform runs directly in car. */ |
| public static final int CONNECTION_TYPE_EMBEDDED = 5; |
| |
| |
| /** @hide */ |
| @IntDef({CONNECTION_TYPE_EMBEDDED}) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface ConnectionType {} |
| |
| /** |
| * Activity Action: Provide media playing through a media template app. |
| * <p>Input: String extra mapped by {@link android.app.SearchManager#QUERY} is the query |
| * used to start the media. String extra mapped by {@link #CAR_EXTRA_MEDIA_COMPONENT} is the |
| * component name of the media app which user wants to play media on. |
| * <p>Output: nothing. |
| */ |
| @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) |
| public static final String CAR_INTENT_ACTION_MEDIA_TEMPLATE = |
| "android.car.intent.action.MEDIA_TEMPLATE"; |
| |
| /** |
| * Used as a string extra field with {@link #CAR_INTENT_ACTION_MEDIA_TEMPLATE} to specify the |
| * MediaBrowserService that user wants to start the media on. |
| * |
| * @hide |
| */ |
| public static final String CAR_EXTRA_MEDIA_COMPONENT = |
| "android.car.intent.extra.MEDIA_COMPONENT"; |
| |
| /** |
| * Used as a string extra field with {@link #CAR_INTENT_ACTION_MEDIA_TEMPLATE} to specify the |
| * media app that user wants to start the media on. Note: this is not the templated media app. |
| * |
| * This is being deprecated. Use {@link #CAR_EXTRA_MEDIA_COMPONENT} instead. |
| */ |
| public static final String CAR_EXTRA_MEDIA_PACKAGE = "android.car.intent.extra.MEDIA_PACKAGE"; |
| |
| /** |
| * Used as a string extra field of media session to specify the service corresponding to the |
| * session. |
| * |
| * @hide |
| */ |
| public static final String CAR_EXTRA_BROWSE_SERVICE_FOR_SESSION = |
| "android.media.session.BROWSE_SERVICE"; |
| |
| /** @hide */ |
| public static final String CAR_SERVICE_INTERFACE_NAME = "android.car.ICar"; |
| |
| private static final String CAR_SERVICE_PACKAGE = "com.android.car"; |
| |
| private static final String CAR_SERVICE_CLASS = "com.android.car.CarService"; |
| |
| /** |
| * Category used by navigation applications to indicate which activity should be launched on |
| * the instrument cluster when such application holds |
| * {@link CarAppFocusManager#APP_FOCUS_TYPE_NAVIGATION} focus. |
| * |
| * @hide |
| */ |
| public static final String CAR_CATEGORY_NAVIGATION = "android.car.cluster.NAVIGATION"; |
| |
| /** |
| * When an activity is launched in the cluster, it will receive {@link ClusterActivityState} in |
| * the intent's extra under this key, containing instrument cluster information such as |
| * unobscured area, visibility, etc. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final String CAR_EXTRA_CLUSTER_ACTIVITY_STATE = |
| "android.car.cluster.ClusterActivityState"; |
| |
| |
| /** |
| * Callback to notify the Lifecycle of car service. |
| * |
| * <p>Access to car service should happen |
| * after {@link CarServiceLifecycleListener#onLifecycleChanged(Car, boolean)} call with |
| * {@code ready} set {@code true}.</p> |
| * |
| * <p>When {@link CarServiceLifecycleListener#onLifecycleChanged(Car, boolean)} is |
| * called with ready set to false, access to car service should stop until car service is ready |
| * again from {@link CarServiceLifecycleListener#onLifecycleChanged(Car, boolean)} call |
| * with {@code ready} set to {@code true}.</p> |
| * @hide |
| */ |
| public interface CarServiceLifecycleListener { |
| /** |
| * Car service has gone through status change. |
| * |
| * <p>This is always called in the main thread context.</p> |
| * |
| * @param car {@code Car} object that was originally associated with this lister from |
| * {@link #createCar(Context, Handler, long, Car.CarServiceLifecycleListener)} |
| * call. |
| * @param ready When {@code true, car service is ready and all accesses are ok. |
| * Otherwise car service has crashed or killed and will be restarted. |
| */ |
| void onLifecycleChanged(@NonNull Car car, boolean ready); |
| } |
| |
| /** |
| * {@link #createCar(Context, Handler, long, CarServiceLifecycleListener)}'s |
| * waitTimeoutMs value to use to wait forever inside the call until car service is ready. |
| * @hide |
| */ |
| public static final long CAR_WAIT_TIMEOUT_WAIT_FOREVER = -1; |
| |
| /** |
| * {@link #createCar(Context, Handler, long, CarServiceLifecycleListener)}'s |
| * waitTimeoutMs value to use to skip any waiting inside the call. |
| * @hide |
| */ |
| public static final long CAR_WAIT_TIMEOUT_DO_NOT_WAIT = 0; |
| |
| private static final long CAR_SERVICE_BIND_RETRY_INTERVAL_MS = 500; |
| private static final long CAR_SERVICE_BIND_MAX_RETRY = 20; |
| |
| private static final long CAR_SERVICE_BINDER_POLLING_INTERVAL_MS = 50; |
| private static final long CAR_SERVICE_BINDER_POLLING_MAX_RETRY = 100; |
| |
| private static final int STATE_DISCONNECTED = 0; |
| private static final int STATE_CONNECTING = 1; |
| private static final int STATE_CONNECTED = 2; |
| |
| /** @hide */ |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef(prefix = "STATE_", value = { |
| STATE_DISCONNECTED, |
| STATE_CONNECTING, |
| STATE_CONNECTED, |
| }) |
| @Target({ElementType.TYPE_USE}) |
| public @interface StateTypeEnum {} |
| |
| private static final boolean DBG = false; |
| |
| private final Context mContext; |
| |
| private final Object mLock = new Object(); |
| |
| @GuardedBy("mLock") |
| private ICar mService; |
| @GuardedBy("mLock") |
| private boolean mServiceBound; |
| |
| @GuardedBy("mLock") |
| @StateTypeEnum |
| private int mConnectionState; |
| @GuardedBy("mLock") |
| private int mConnectionRetryCount; |
| |
| private final Runnable mConnectionRetryRunnable = new Runnable() { |
| @Override |
| public void run() { |
| startCarService(); |
| } |
| }; |
| |
| private final Runnable mConnectionRetryFailedRunnable = new Runnable() { |
| @Override |
| public void run() { |
| mServiceConnectionListener.onServiceDisconnected(new ComponentName(CAR_SERVICE_PACKAGE, |
| CAR_SERVICE_CLASS)); |
| } |
| }; |
| |
| private final ServiceConnection mServiceConnectionListener = |
| new ServiceConnection () { |
| @Override |
| public void onServiceConnected(ComponentName name, IBinder service) { |
| synchronized (mLock) { |
| ICar newService = ICar.Stub.asInterface(service); |
| if (newService == null) { |
| Log.wtf(TAG_CAR, "null binder service", new RuntimeException()); |
| return; // should not happen. |
| } |
| if (mService != null && mService.asBinder().equals(newService.asBinder())) { |
| // already connected. |
| return; |
| } |
| mConnectionState = STATE_CONNECTED; |
| mService = newService; |
| } |
| if (mServiceConnectionListenerClient != null) { |
| mServiceConnectionListenerClient.onServiceConnected(name, service); |
| } |
| if (mStatusChangeCallback != null) { |
| mStatusChangeCallback.onLifecycleChanged(Car.this, true); |
| } |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName name) { |
| synchronized (mLock) { |
| if (mConnectionState == STATE_DISCONNECTED) { |
| // can happen when client calls disconnect before onServiceDisconnected call. |
| return; |
| } |
| handleCarDisconnectLocked(); |
| } |
| if (mServiceConnectionListenerClient != null) { |
| mServiceConnectionListenerClient.onServiceDisconnected(name); |
| } |
| if (mStatusChangeCallback != null) { |
| mStatusChangeCallback.onLifecycleChanged(Car.this, false); |
| } |
| } |
| }; |
| |
| @Nullable |
| private final ServiceConnection mServiceConnectionListenerClient; |
| |
| /** Can be added after ServiceManager.getService call */ |
| @Nullable |
| private final CarServiceLifecycleListener mStatusChangeCallback; |
| |
| @GuardedBy("mLock") |
| private final HashMap<String, CarManagerBase> mServiceMap = new HashMap<>(); |
| |
| /** Handler for generic event dispatching. */ |
| private final Handler mEventHandler; |
| |
| private final Handler mMainThreadEventHandler; |
| |
| /** |
| * A factory method that creates Car instance for all Car API access. |
| * @param context |
| * @param serviceConnectionListener listener for monitoring service connection. |
| * @param handler the handler on which the callback should execute, or null to execute on the |
| * service's main thread. Note: the service connection listener will be always on the main |
| * thread regardless of the handler given. |
| * @return Car instance if system is in car environment and returns {@code null} otherwise. |
| * |
| * @deprecated use {@link #createCar(Context, Handler)} instead. |
| */ |
| @Deprecated |
| public static Car createCar(Context context, ServiceConnection serviceConnectionListener, |
| @Nullable Handler handler) { |
| if (!context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) { |
| Log.e(TAG_CAR, "FEATURE_AUTOMOTIVE not declared while android.car is used"); |
| return null; |
| } |
| try { |
| return new Car(context, /* service= */ null , serviceConnectionListener, |
| /* statusChangeListener= */ null, handler); |
| } catch (IllegalArgumentException e) { |
| // Expected when car service loader is not available. |
| } |
| return null; |
| } |
| |
| /** |
| * A factory method that creates Car instance for all Car API access using main thread {@code |
| * Looper}. |
| * |
| * @see #createCar(Context, ServiceConnection, Handler) |
| * |
| * @deprecated use {@link #createCar(Context, Handler)} instead. |
| */ |
| @Deprecated |
| public static Car createCar(Context context, ServiceConnection serviceConnectionListener) { |
| return createCar(context, serviceConnectionListener, null); |
| } |
| |
| /** |
| * Creates new {@link Car} object which connected synchronously to Car Service and ready to use. |
| * |
| * @param context application's context |
| * |
| * @return Car object if operation succeeded, otherwise null. |
| */ |
| @Nullable |
| public static Car createCar(Context context) { |
| return createCar(context, (Handler) null); |
| } |
| |
| /** |
| * Creates new {@link Car} object which connected synchronously to Car Service and ready to use. |
| * |
| * @param context application's context |
| * @param handler the handler on which the manager's callbacks will be executed, or null to |
| * execute on the application's main thread. |
| * |
| * @return Car object if operation succeeded, otherwise null. |
| */ |
| @Nullable |
| public static Car createCar(Context context, @Nullable Handler handler) { |
| Car car = null; |
| IBinder service = null; |
| boolean started = false; |
| int retryCount = 0; |
| while (true) { |
| service = ServiceManager.getService(CAR_SERVICE_BINDER_SERVICE_NAME); |
| if (car == null) { |
| // service can be still null. The constructor is safe for null service. |
| car = new Car(context, ICar.Stub.asInterface(service), |
| null /*serviceConnectionListener*/, null /*statusChangeListener*/, handler); |
| } |
| if (service != null) { |
| if (!started) { // specialization for most common case. |
| return car; |
| } |
| break; |
| } |
| if (!started) { |
| car.startCarService(); |
| started = true; |
| } |
| retryCount++; |
| if (retryCount > CAR_SERVICE_BINDER_POLLING_MAX_RETRY) { |
| Log.e(TAG_CAR, "cannot get car_service, waited for car service (ms):" |
| + CAR_SERVICE_BINDER_POLLING_INTERVAL_MS |
| * CAR_SERVICE_BINDER_POLLING_MAX_RETRY, |
| new RuntimeException()); |
| return null; |
| } |
| try { |
| Thread.sleep(CAR_SERVICE_BINDER_POLLING_INTERVAL_MS); |
| } catch (InterruptedException e) { |
| Log.e(CarLibLog.TAG_CAR, "interrupted while waiting for car_service", |
| new RuntimeException()); |
| return null; |
| } |
| } |
| // Can be accessed from mServiceConnectionListener in main thread. |
| synchronized (car) { |
| if (car.mService == null) { |
| car.mService = ICar.Stub.asInterface(service); |
| Log.w(TAG_CAR, |
| "waited for car_service (ms):" |
| + CAR_SERVICE_BINDER_POLLING_INTERVAL_MS * retryCount, |
| new RuntimeException()); |
| } |
| car.mConnectionState = STATE_CONNECTED; |
| } |
| return car; |
| } |
| |
| /** |
| * Creates new {@link Car} object with {@link CarServiceLifecycleListener}. |
| * |
| * <p> If car service is ready inside this call and if the caller is running in the main thread, |
| * {@link CarServiceLifecycleListener#onLifecycleChanged(Car, boolean)} will be called |
| * with ready set to be true. Otherwise, |
| * {@link CarServiceLifecycleListener#onLifecycleChanged(Car, boolean)} will be called |
| * from the main thread later. </p> |
| * |
| * <p>This call can block up to specified waitTimeoutMs to wait for car service to be ready. |
| * If car service is not ready within the given time, it will return a Car instance in |
| * disconnected state. Blocking main thread forever can lead into getting ANR (Application Not |
| * Responding) killing from system and should not be used if the app is supposed to survive |
| * across the crash / restart of car service. It can be still useful in case the app cannot do |
| * anything without car service being ready. In any waiting, if the thread is getting |
| * interrupted, it will return immediately. |
| * </p> |
| * |
| * <p>Note that returned {@link Car} object is not guaranteed to be connected when there is |
| * a limited timeout. Regardless of returned car being connected or not, it is recommended to |
| * implement all car related initialization inside |
| * {@link CarServiceLifecycleListener#onLifecycleChanged(Car, boolean)} and avoid the |
| * needs to check if returned {@link Car} is connected or not from returned {@link Car}.</p> |
| * |
| * @param handler dispatches all Car*Manager events to this Handler. Exception is |
| * {@link CarServiceLifecycleListener} which will be always dispatched to main |
| * thread. Passing null leads into dispatching all Car*Manager callbacks to main |
| * thread as well. |
| * @param waitTimeoutMs Setting this to {@link #CAR_WAIT_TIMEOUT_DO_NOT_WAIT} will guarantee |
| * that the API does not wait for the car service at all. Setting this to |
| * to {@link #CAR_WAIT_TIMEOUT_WAIT_FOREVER} will block the call forever |
| * until the car service is ready. Setting any positive value will be |
| * interpreted as timeout value. |
| * |
| * @hide |
| */ |
| @NonNull |
| public static Car createCar(@NonNull Context context, |
| @Nullable Handler handler, long waitTimeoutMs, |
| @NonNull CarServiceLifecycleListener statusChangeListener) { |
| Preconditions.checkNotNull(context); |
| Preconditions.checkNotNull(statusChangeListener); |
| Car car = null; |
| IBinder service = null; |
| boolean started = false; |
| int retryCount = 0; |
| long maxRetryCount = 0; |
| if (waitTimeoutMs > 0) { |
| maxRetryCount = waitTimeoutMs / CAR_SERVICE_BINDER_POLLING_INTERVAL_MS; |
| // at least wait once if it is positive value. |
| if (maxRetryCount == 0) { |
| maxRetryCount = 1; |
| } |
| } |
| boolean isMainThread = Looper.myLooper() == Looper.getMainLooper(); |
| while (true) { |
| service = ServiceManager.getService(CAR_SERVICE_BINDER_SERVICE_NAME); |
| if (car == null) { |
| // service can be still null. The constructor is safe for null service. |
| car = new Car(context, ICar.Stub.asInterface(service), null, statusChangeListener, |
| handler); |
| } |
| if (service != null) { |
| if (!started) { // specialization for most common case : car service already ready |
| car.dispatchCarReadyToMainThread(isMainThread); |
| // Needs this for CarServiceLifecycleListener. Note that ServiceConnection |
| // will skip the callback as valid mService is set already. |
| car.startCarService(); |
| return car; |
| } |
| // service available after starting. |
| break; |
| } |
| if (!started) { |
| car.startCarService(); |
| started = true; |
| } |
| retryCount++; |
| if (waitTimeoutMs < 0 && retryCount >= CAR_SERVICE_BINDER_POLLING_MAX_RETRY |
| && retryCount % CAR_SERVICE_BINDER_POLLING_MAX_RETRY == 0) { |
| // Log warning if car service is not alive even for waiting forever case. |
| Log.w(TAG_CAR, "car_service not ready, waited for car service (ms):" |
| + retryCount * CAR_SERVICE_BINDER_POLLING_INTERVAL_MS, |
| new RuntimeException()); |
| } else if (waitTimeoutMs >= 0 && retryCount > maxRetryCount) { |
| if (waitTimeoutMs > 0) { |
| Log.w(TAG_CAR, "car_service not ready, waited for car service (ms):" |
| + waitTimeoutMs, |
| new RuntimeException()); |
| } |
| return car; |
| } |
| |
| try { |
| Thread.sleep(CAR_SERVICE_BINDER_POLLING_INTERVAL_MS); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| Log.w(TAG_CAR, "interrupted", new RuntimeException()); |
| return car; |
| } |
| } |
| // Can be accessed from mServiceConnectionListener in main thread. |
| synchronized (car.mLock) { |
| Log.w(TAG_CAR, |
| "waited for car_service (ms):" |
| + retryCount * CAR_SERVICE_BINDER_POLLING_INTERVAL_MS, |
| new RuntimeException()); |
| // ServiceConnection has handled everything. |
| if (car.mService != null) { |
| return car; |
| } |
| // mService check in ServiceConnection prevents calling |
| // onLifecycleChanged. So onLifecycleChanged should be called explicitly |
| // but do it outside lock. |
| car.mService = ICar.Stub.asInterface(service); |
| car.mConnectionState = STATE_CONNECTED; |
| } |
| car.dispatchCarReadyToMainThread(isMainThread); |
| return car; |
| } |
| |
| private void dispatchCarReadyToMainThread(boolean isMainThread) { |
| if (isMainThread) { |
| mStatusChangeCallback.onLifecycleChanged(this, true); |
| } else { |
| // should dispatch to main thread. |
| mMainThreadEventHandler.post( |
| () -> mStatusChangeCallback.onLifecycleChanged(this, true)); |
| } |
| } |
| |
| private Car(Context context, @Nullable ICar service, |
| @Nullable ServiceConnection serviceConnectionListener, |
| @Nullable CarServiceLifecycleListener statusChangeListener, |
| @Nullable Handler handler) { |
| mContext = context; |
| mEventHandler = determineEventHandler(handler); |
| mMainThreadEventHandler = determineMainThreadEventHandler(mEventHandler); |
| |
| mService = service; |
| if (service != null) { |
| mConnectionState = STATE_CONNECTED; |
| } else { |
| mConnectionState = STATE_DISCONNECTED; |
| } |
| mServiceConnectionListenerClient = serviceConnectionListener; |
| mStatusChangeCallback = statusChangeListener; |
| } |
| |
| /** |
| * Car constructor when ICar binder is already available. The binder can be null. |
| * @hide |
| */ |
| public Car(Context context, @Nullable ICar service, @Nullable Handler handler) { |
| this(context, service, null /*serviceConnectionListener*/, null /*statusChangeListener*/, |
| handler); |
| } |
| |
| private static Handler determineMainThreadEventHandler(Handler eventHandler) { |
| Looper mainLooper = Looper.getMainLooper(); |
| return (eventHandler.getLooper() == mainLooper) ? eventHandler : new Handler(mainLooper); |
| } |
| |
| private static Handler determineEventHandler(@Nullable Handler handler) { |
| if (handler == null) { |
| Looper looper = Looper.getMainLooper(); |
| handler = new Handler(looper); |
| } |
| return handler; |
| } |
| |
| /** |
| * Connect to car service. This can be called while it is disconnected. |
| * @throws IllegalStateException If connection is still on-going from previous |
| * connect call or it is already connected |
| * |
| * @deprecated this method is not need if this object is created via |
| * {@link #createCar(Context, Handler)}. |
| */ |
| @Deprecated |
| public void connect() throws IllegalStateException { |
| synchronized (mLock) { |
| if (mConnectionState != STATE_DISCONNECTED) { |
| throw new IllegalStateException("already connected or connecting"); |
| } |
| mConnectionState = STATE_CONNECTING; |
| startCarService(); |
| } |
| } |
| |
| private void handleCarDisconnectLocked() { |
| if (mConnectionState == STATE_DISCONNECTED) { |
| // can happen when client calls disconnect with onServiceDisconnected already called. |
| return; |
| } |
| mEventHandler.removeCallbacks(mConnectionRetryRunnable); |
| mMainThreadEventHandler.removeCallbacks(mConnectionRetryFailedRunnable); |
| mConnectionRetryCount = 0; |
| tearDownCarManagersLocked(); |
| mService = null; |
| mConnectionState = STATE_DISCONNECTED; |
| } |
| |
| /** |
| * Disconnect from car service. This can be called while disconnected. Once disconnect is |
| * called, all Car*Managers from this instance becomes invalid, and |
| * {@link Car#getCarManager(String)} will return different instance if it is connected again. |
| */ |
| public void disconnect() { |
| synchronized (mLock) { |
| handleCarDisconnectLocked(); |
| if (mServiceBound) { |
| mContext.unbindService(mServiceConnectionListener); |
| mServiceBound = false; |
| } |
| } |
| } |
| |
| /** |
| * Tells if it is connected to the service or not. This will return false if it is still |
| * connecting. |
| * @return |
| */ |
| public boolean isConnected() { |
| synchronized (mLock) { |
| return mService != null; |
| } |
| } |
| |
| /** |
| * Tells if this instance is already connecting to car service or not. |
| * @return |
| */ |
| public boolean isConnecting() { |
| synchronized (mLock) { |
| return mConnectionState == STATE_CONNECTING; |
| } |
| } |
| |
| /** @hide */ |
| @VisibleForTesting |
| public ServiceConnection getServiceConnectionListener() { |
| return mServiceConnectionListener; |
| } |
| |
| /** |
| * Get car specific service as in {@link Context#getSystemService(String)}. Returned |
| * {@link Object} should be type-casted to the desired service. |
| * For example, to get sensor service, |
| * SensorManagerService sensorManagerService = car.getCarManager(Car.SENSOR_SERVICE); |
| * @param serviceName Name of service that should be created like {@link #SENSOR_SERVICE}. |
| * @return Matching service manager or null if there is no such service. |
| */ |
| @Nullable |
| public Object getCarManager(String serviceName) { |
| CarManagerBase manager; |
| ICar service = getICarOrThrow(); |
| synchronized (mLock) { |
| manager = mServiceMap.get(serviceName); |
| if (manager == null) { |
| try { |
| IBinder binder = service.getCarService(serviceName); |
| if (binder == null) { |
| Log.w(TAG_CAR, "getCarManager could not get binder for service:" |
| + serviceName); |
| return null; |
| } |
| manager = createCarManager(serviceName, binder); |
| if (manager == null) { |
| Log.w(TAG_CAR, "getCarManager could not create manager for service:" |
| + serviceName); |
| return null; |
| } |
| mServiceMap.put(serviceName, manager); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| } |
| return manager; |
| } |
| |
| /** |
| * Return the type of currently connected car. |
| * @return |
| */ |
| @ConnectionType |
| public int getCarConnectionType() { |
| return CONNECTION_TYPE_EMBEDDED; |
| } |
| |
| @Nullable |
| private CarManagerBase createCarManager(String serviceName, IBinder binder) { |
| CarManagerBase manager = null; |
| switch (serviceName) { |
| case AUDIO_SERVICE: |
| manager = new CarAudioManager(binder, mContext, mEventHandler); |
| break; |
| case SENSOR_SERVICE: |
| manager = new CarSensorManager(binder, mContext, mEventHandler); |
| break; |
| case INFO_SERVICE: |
| manager = new CarInfoManager(binder); |
| break; |
| case APP_FOCUS_SERVICE: |
| manager = new CarAppFocusManager(binder, mEventHandler); |
| break; |
| case PACKAGE_SERVICE: |
| manager = new CarPackageManager(binder, mContext); |
| break; |
| case CAR_NAVIGATION_SERVICE: |
| manager = new CarNavigationStatusManager(binder); |
| break; |
| case CABIN_SERVICE: |
| manager = new CarCabinManager(binder, mContext, mEventHandler); |
| break; |
| case DIAGNOSTIC_SERVICE: |
| manager = new CarDiagnosticManager(binder, mContext, mEventHandler); |
| break; |
| case HVAC_SERVICE: |
| manager = new CarHvacManager(binder, mContext, mEventHandler); |
| break; |
| case POWER_SERVICE: |
| manager = new CarPowerManager(binder, mContext, mEventHandler); |
| break; |
| case PROJECTION_SERVICE: |
| manager = new CarProjectionManager(binder, mEventHandler); |
| break; |
| case PROPERTY_SERVICE: |
| manager = new CarPropertyManager(ICarProperty.Stub.asInterface(binder), |
| mEventHandler); |
| break; |
| case VENDOR_EXTENSION_SERVICE: |
| manager = new CarVendorExtensionManager(binder, mEventHandler); |
| break; |
| case CAR_INSTRUMENT_CLUSTER_SERVICE: |
| manager = new CarInstrumentClusterManager(binder, mEventHandler); |
| break; |
| case TEST_SERVICE: |
| /* CarTestManager exist in static library. So instead of constructing it here, |
| * only pass binder wrapper so that CarTestManager can be constructed outside. */ |
| manager = new CarTestManagerBinderWrapper(binder); |
| break; |
| case VMS_SUBSCRIBER_SERVICE: |
| manager = new VmsSubscriberManager(binder); |
| break; |
| case BLUETOOTH_SERVICE: |
| manager = new CarBluetoothManager(binder, mContext); |
| break; |
| case STORAGE_MONITORING_SERVICE: |
| manager = new CarStorageMonitoringManager(binder, mEventHandler); |
| break; |
| case CAR_DRIVING_STATE_SERVICE: |
| manager = new CarDrivingStateManager(binder, mContext, mEventHandler); |
| break; |
| case CAR_UX_RESTRICTION_SERVICE: |
| manager = new CarUxRestrictionsManager(binder, mContext, mEventHandler); |
| break; |
| case CAR_CONFIGURATION_SERVICE: |
| manager = new CarConfigurationManager(binder); |
| break; |
| case CAR_TRUST_AGENT_ENROLLMENT_SERVICE: |
| manager = new CarTrustAgentEnrollmentManager(binder, mContext, mEventHandler); |
| break; |
| case CAR_MEDIA_SERVICE: |
| manager = new CarMediaManager(binder); |
| break; |
| case CAR_BUGREPORT_SERVICE: |
| manager = new CarBugreportManager(binder, mContext); |
| break; |
| default: |
| break; |
| } |
| return manager; |
| } |
| |
| private void startCarService() { |
| Intent intent = new Intent(); |
| intent.setPackage(CAR_SERVICE_PACKAGE); |
| intent.setAction(Car.CAR_SERVICE_INTERFACE_NAME); |
| boolean bound = mContext.bindServiceAsUser(intent, mServiceConnectionListener, |
| Context.BIND_AUTO_CREATE, UserHandle.CURRENT_OR_SELF); |
| synchronized (mLock) { |
| if (!bound) { |
| mConnectionRetryCount++; |
| if (mConnectionRetryCount > CAR_SERVICE_BIND_MAX_RETRY) { |
| Log.w(TAG_CAR, "cannot bind to car service after max retry"); |
| mMainThreadEventHandler.post(mConnectionRetryFailedRunnable); |
| } else { |
| mEventHandler.postDelayed(mConnectionRetryRunnable, |
| CAR_SERVICE_BIND_RETRY_INTERVAL_MS); |
| } |
| } else { |
| mEventHandler.removeCallbacks(mConnectionRetryRunnable); |
| mMainThreadEventHandler.removeCallbacks(mConnectionRetryFailedRunnable); |
| mConnectionRetryCount = 0; |
| mServiceBound = true; |
| } |
| } |
| } |
| |
| private ICar getICarOrThrow() throws IllegalStateException { |
| synchronized (mLock) { |
| if (mService == null) { |
| throw new IllegalStateException("not connected"); |
| } |
| return mService; |
| } |
| } |
| |
| private void tearDownCarManagersLocked() { |
| // All disconnected handling should be only doing its internal cleanup. |
| for (CarManagerBase manager: mServiceMap.values()) { |
| manager.onCarDisconnected(); |
| } |
| mServiceMap.clear(); |
| } |
| } |
