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bluetooth_characteristic.dart
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bluetooth_characteristic.dart
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// Copyright 2017, Paul DeMarco.
// All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
part of flutter_blue;
class BluetoothCharacteristic {
final Guid uuid;
final Guid serviceUuid; // The service that this characteristic belongs to.
final Guid
secondaryServiceUuid; // The nested service that this characteristic belongs to.
final CharacteristicProperties properties;
final List<BluetoothDescriptor> descriptors;
bool get isNotifying {
try {
var cccd =
descriptors.singleWhere((d) => d.uuid == BluetoothDescriptor.CCCD);
return ((cccd.value[0] & 0x01) > 0 || (cccd.value[0] & 0x02) > 0);
} catch (e) {
return false;
}
}
List<int> value;
BluetoothCharacteristic(
{@required this.uuid,
@required this.serviceUuid,
this.secondaryServiceUuid,
@required this.descriptors,
@required this.properties});
BluetoothCharacteristic.fromProto(protos.BluetoothCharacteristic p)
: uuid = new Guid(p.uuid),
serviceUuid = new Guid(p.serviceUuid),
secondaryServiceUuid = (p.secondaryServiceUuid.length > 0)
? new Guid(p.secondaryServiceUuid)
: null,
descriptors = p.descriptors
.map((d) => new BluetoothDescriptor.fromProto(d))
.toList(),
properties = new CharacteristicProperties.fromProto(p.properties),
value = p.value;
void updateDescriptors(List<BluetoothDescriptor> newDescriptors) {
for (var d in descriptors) {
for (var newD in newDescriptors) {
if (d.uuid == newD.uuid) {
d.value = newD.value;
}
}
}
}
}
enum CharacteristicWriteType { withResponse, withoutResponse }
class CharacteristicProperties {
final bool broadcast;
final bool read;
final bool writeWithoutResponse;
final bool write;
final bool notify;
final bool indicate;
final bool authenticatedSignedWrites;
final bool extendedProperties;
final bool notifyEncryptionRequired;
final bool indicateEncryptionRequired;
CharacteristicProperties(
{this.broadcast = false,
this.read = false,
this.writeWithoutResponse = false,
this.write = false,
this.notify = false,
this.indicate = false,
this.authenticatedSignedWrites = false,
this.extendedProperties = false,
this.notifyEncryptionRequired = false,
this.indicateEncryptionRequired = false});
CharacteristicProperties.fromProto(protos.CharacteristicProperties p)
: broadcast = p.broadcast,
read = p.read,
writeWithoutResponse = p.writeWithoutResponse,
write = p.write,
notify = p.notify,
indicate = p.indicate,
authenticatedSignedWrites = p.authenticatedSignedWrites,
extendedProperties = p.extendedProperties,
notifyEncryptionRequired = p.notifyEncryptionRequired,
indicateEncryptionRequired = p.indicateEncryptionRequired;
}