public void removeNotify( UUID serviceUUID, UUID characteristicUUID, Callback success, Callback fail) { Log.d(LOG_TAG, "removeNotify"); if (gatt == null) { fail.invoke("BluetoothGatt is null"); return; } BluetoothGattService service = gatt.getService(serviceUUID); BluetoothGattCharacteristic characteristic = findNotifyCharacteristic(service, characteristicUUID); // String key = generateHashKey(serviceUUID, characteristic); if (characteristic != null) { if (gatt.setCharacteristicNotification(characteristic, false)) { success.invoke(); } else { // TODO we can probably ignore and return success anyway since we removed the notification // callback fail.invoke("Failed to stop notification for " + characteristicUUID); } } else { fail.invoke("Characteristic " + characteristicUUID + " not found"); } }
// This seems way too complicated public void registerNotify( UUID serviceUUID, UUID characteristicUUID, Callback success, Callback fail) { Log.d(LOG_TAG, "registerNotify"); if (gatt == null) { fail.invoke("BluetoothGatt is null"); return; } BluetoothGattService service = gatt.getService(serviceUUID); BluetoothGattCharacteristic characteristic = findNotifyCharacteristic(service, characteristicUUID); // String key = generateHashKey(serviceUUID, characteristic); if (characteristic != null) { Log.d(LOG_TAG, "characteristic ok"); if (gatt.setCharacteristicNotification(characteristic, true)) { BluetoothGattDescriptor descriptor = characteristic.getDescriptor(UUID.fromString(CHARACTERISTIC_NOTIFICATION_CONFIG)); if (descriptor != null) { Log.d(LOG_TAG, "trovato descriptor"); // prefer notify over indicate if ((characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0) { Log.d(LOG_TAG, "Characteristic " + characteristicUUID + " set NOTIFY"); descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE); } else if ((characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_INDICATE) != 0) { Log.d(LOG_TAG, "Characteristic " + characteristicUUID + " set INDICATE"); descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE); } else { Log.d( LOG_TAG, "Characteristic " + characteristicUUID + " does not have NOTIFY or INDICATE property set"); } if (gatt.writeDescriptor(descriptor)) { // Tutto ok Log.d(LOG_TAG, "registerNotify completato"); success.invoke(); } else { fail.invoke( "Failed to set client characteristic notification for " + characteristicUUID); } } else { fail.invoke("Set notification failed for " + characteristicUUID); } } else { fail.invoke("Failed to register notification for " + characteristicUUID); } } else { fail.invoke("Characteristic " + characteristicUUID + " not found"); } }