diff options
| -rw-r--r-- | core/java/android/bluetooth/BluetoothAdapter.java | 153 |
1 files changed, 150 insertions, 3 deletions
diff --git a/core/java/android/bluetooth/BluetoothAdapter.java b/core/java/android/bluetooth/BluetoothAdapter.java index d254340f49cf..cc0b22afe38d 100644 --- a/core/java/android/bluetooth/BluetoothAdapter.java +++ b/core/java/android/bluetooth/BluetoothAdapter.java @@ -3565,12 +3565,12 @@ public final class BluetoothAdapter { } @Override - public void onDeviceDisconnected(BluetoothDevice device) { + public void onDeviceDisconnected(BluetoothDevice device, int hciReason) { for (Map.Entry<BluetoothConnectionCallback, Executor> callbackExecutorEntry: mBluetoothConnectionCallbackExecutorMap.entrySet()) { BluetoothConnectionCallback callback = callbackExecutorEntry.getKey(); Executor executor = callbackExecutorEntry.getValue(); - executor.execute(() -> callback.onDeviceDisconnected(device)); + executor.execute(() -> callback.onDeviceDisconnected(device, hciReason)); } } }; @@ -3675,8 +3675,155 @@ public final class BluetoothAdapter { /** * Callback triggered when a bluetooth device (classic or BLE) is disconnected * @param device is the disconnected bluetooth device + * @param reason is the disconnect reason */ - public void onDeviceDisconnected(BluetoothDevice device) {} + public void onDeviceDisconnected(BluetoothDevice device, @DisconnectReason int reason) {} + + /** + * @hide + */ + @Retention(RetentionPolicy.SOURCE) + @IntDef(prefix = { "REASON_" }, value = { + REASON_UNKNOWN, + REASON_LOCAL_REQUEST, + REASON_REMOTE_REQUEST, + REASON_LOCAL_ERROR, + REASON_REMOTE_ERROR, + REASON_TIMEOUT, + REASON_SECURITY, + REASON_SYSTEM_POLICY, + REASON_RESOURCE_LIMIT_REACHED, + REASON_CONNECTION_EXISTS, + REASON_BAD_PARAMETERS}) + public @interface DisconnectReason {} + + /** + * Indicates that the ACL disconnected due to an unknown reason. + */ + public static final int REASON_UNKNOWN = 0; + + /** + * Indicates that the ACL disconnected due to an explicit request from the local device. + * <p> + * Example cause: This is a normal disconnect reason, e.g., user/app initiates + * disconnection. + */ + public static final int REASON_LOCAL_REQUEST = 1; + + /** + * Indicates that the ACL disconnected due to an explicit request from the remote device. + * <p> + * Example cause: This is a normal disconnect reason, e.g., user/app initiates + * disconnection. + * <p> + * Example solution: The app can also prompt the user to check their remote device. + */ + public static final int REASON_REMOTE_REQUEST = 2; + + /** + * Generic disconnect reason indicating the ACL disconnected due to an error on the local + * device. + * <p> + * Example solution: Prompt the user to check their local device (e.g., phone, car + * headunit). + */ + public static final int REASON_LOCAL_ERROR = 3; + + /** + * Generic disconnect reason indicating the ACL disconnected due to an error on the remote + * device. + * <p> + * Example solution: Prompt the user to check their remote device (e.g., headset, car + * headunit, watch). + */ + public static final int REASON_REMOTE_ERROR = 4; + + /** + * Indicates that the ACL disconnected due to a timeout. + * <p> + * Example cause: remote device might be out of range. + * <p> + * Example solution: Prompt user to verify their remote device is on or in + * connection/pairing mode. + */ + public static final int REASON_TIMEOUT = 5; + + /** + * Indicates that the ACL disconnected due to link key issues. + * <p> + * Example cause: Devices are either unpaired or remote device is refusing our pairing + * request. + * <p> + * Example solution: Prompt user to unpair and pair again. + */ + public static final int REASON_SECURITY = 6; + + /** + * Indicates that the ACL disconnected due to the local device's system policy. + * <p> + * Example cause: privacy policy, power management policy, permissions, etc. + * <p> + * Example solution: Prompt the user to check settings, or check with their system + * administrator (e.g. some corp-managed devices do not allow OPP connection). + */ + public static final int REASON_SYSTEM_POLICY = 7; + + /** + * Indicates that the ACL disconnected due to resource constraints, either on the local + * device or the remote device. + * <p> + * Example cause: controller is busy, memory limit reached, maximum number of connections + * reached. + * <p> + * Example solution: The app should wait and try again. If still failing, prompt the user + * to disconnect some devices, or toggle Bluetooth on the local and/or the remote device. + */ + public static final int REASON_RESOURCE_LIMIT_REACHED = 8; + + /** + * Indicates that the ACL disconnected because another ACL connection already exists. + */ + public static final int REASON_CONNECTION_EXISTS = 9; + + /** + * Indicates that the ACL disconnected due to incorrect parameters passed in from the app. + * <p> + * Example solution: Change parameters and try again. If error persists, the app can report + * telemetry and/or log the error in a bugreport. + */ + public static final int REASON_BAD_PARAMETERS = 10; + + /** + * Returns human-readable strings corresponding to {@link DisconnectReason}. + */ + public static String disconnectReasonText(@DisconnectReason int reason) { + switch (reason) { + case REASON_UNKNOWN: + return "Reason unknown"; + case REASON_LOCAL_REQUEST: + return "Local request"; + case REASON_REMOTE_REQUEST: + return "Remote request"; + case REASON_LOCAL_ERROR: + return "Local error"; + case REASON_REMOTE_ERROR: + return "Remote error"; + case REASON_TIMEOUT: + return "Timeout"; + case REASON_SECURITY: + return "Security"; + case REASON_SYSTEM_POLICY: + return "System policy"; + case REASON_RESOURCE_LIMIT_REACHED: + return "Resource constrained"; + case REASON_CONNECTION_EXISTS: + return "Connection already exists"; + case REASON_BAD_PARAMETERS: + return "Bad parameters"; + default: + return "Unrecognized disconnect reason: " + reason; + } + } } /** |