Comments (16)
WIStudent
commented on May 22, 2024
Some additional infos: I am using a Nexus 5X with Android 6.0.1
from rxandroidble.
dariuszseweryn
commented on May 22, 2024
Hello there,
I have been thinking how to address this issue. I currently have no possibility of test this scenario.
I can give you the change I think would fix the problem - would you be so kind to test it?
The thing is to change the isDisconnected() function implementation in RxBleRadioOperationDisconnect class. It would go like this:
private boolean isDisconnected(BluetoothGatt bluetoothGatt) {
return bluetoothManager.getConnectionState(bluetoothGatt.getDevice(), BluetoothProfile.GATT) == BluetoothProfile.STATE_DISCONNECTED
&& rxBleGattCallback.getConnectionState() == RxBleConnection.RxBleConnectionState.DISCONNECTED;
}
and the whole implementation of RxBleGattCallback would be:
package com.polidea.rxandroidble.internal.connection;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.support.annotation.NonNull;
import com.polidea.rxandroidble.RxBleConnection.RxBleConnectionState;
import com.polidea.rxandroidble.RxBleDeviceServices;
import com.polidea.rxandroidble.exceptions.BleDisconnectedException;
import com.polidea.rxandroidble.exceptions.BleGattException;
import com.polidea.rxandroidble.exceptions.BleGattOperationType;
import com.polidea.rxandroidble.internal.RxBleLog;
import com.polidea.rxandroidble.internal.util.ByteAssociation;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicReference;
import rx.Observable;
import rx.Scheduler;
import rx.functions.Func1;
import rx.schedulers.Schedulers;
import rx.subjects.BehaviorSubject;
import rx.subjects.PublishSubject;
public class RxBleGattCallback {
public interface Provider {
RxBleGattCallback provide();
}
private final Scheduler callbackScheduler = Schedulers.computation();
private final BehaviorSubject<Void> statusErrorSubject = BehaviorSubject.create();
private final BehaviorSubject<BluetoothGatt> bluetoothGattBehaviorSubject = BehaviorSubject.create();
private final PublishSubject<RxBleConnectionState> connectionStatePublishSubject = PublishSubject.create();
private final PublishSubject<RxBleDeviceServices> servicesDiscoveredPublishSubject = PublishSubject.create();
private final PublishSubject<ByteAssociation<UUID>> readCharacteristicPublishSubject = PublishSubject.create();
private final PublishSubject<ByteAssociation<UUID>> writeCharacteristicPublishSubject = PublishSubject.create();
private final PublishSubject<ByteAssociation<UUID>> changedCharacteristicPublishSubject = PublishSubject.create();
private final PublishSubject<ByteAssociation<BluetoothGattDescriptor>> readDescriptorPublishSubject = PublishSubject.create();
private final PublishSubject<ByteAssociation<BluetoothGattDescriptor>> writeDescriptorPublishSubject = PublishSubject.create();
private final PublishSubject<Integer> readRssiPublishSubject = PublishSubject.create();
private final PublishSubject<Integer> changedMtuPublishSubject = PublishSubject.create();
private final Observable disconnectedErrorObservable = getOnConnectionStateChange()
.filter(this::isDisconnectedOrDisconnecting)
.doOnNext(rxBleConnectionState -> bluetoothGattBehaviorSubject.onCompleted())
.flatMap(rxBleConnectionState -> Observable.error(new BleDisconnectedException()));
private final AtomicReference<RxBleConnectionState> connectionStateAtomicReference = new AtomicReference<>();
private boolean isDisconnectedOrDisconnecting(RxBleConnectionState rxBleConnectionState) {
return rxBleConnectionState == RxBleConnectionState.DISCONNECTED || rxBleConnectionState == RxBleConnectionState.DISCONNECTING;
}
private BluetoothGattCallback bluetoothGattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
RxBleLog.d("onConnectionStateChange newState=%d status=%d", newState, status);
super.onConnectionStateChange(gatt, status, newState);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.CONNECTION_STATE)) {
return;
}
Observable.just(mapConnectionStateToRxBleConnectionStatus(newState))
.compose(getSubscribeAndObserveOnTransformer())
.doOnNext(connectionStateAtomicReference::set)
.subscribe(connectionStatePublishSubject::onNext);
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
RxBleLog.d("onServicesDiscovered status=%d", status);
super.onServicesDiscovered(gatt, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.SERVICE_DISCOVERY)) {
return;
}
Observable.just(gatt)
.map(BluetoothGatt::getServices)
.map(RxBleDeviceServices::new)
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(servicesDiscoveredPublishSubject::onNext);
}
@Override
public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
RxBleLog.d("onCharacteristicRead characteristic=%s status=%d", characteristic.getUuid(), status);
super.onCharacteristicRead(gatt, characteristic, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.CHARACTERISTIC_READ)) {
return;
}
just(characteristic)
.map(associateCharacteristicWithBytes())
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(readCharacteristicPublishSubject::onNext);
}
@Override
public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
RxBleLog.d("onCharacteristicWrite characteristic=%s status=%d", characteristic.getUuid(), status);
super.onCharacteristicWrite(gatt, characteristic, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.CHARACTERISTIC_WRITE)) {
return;
}
just(characteristic)
.map(associateCharacteristicWithBytes())
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(writeCharacteristicPublishSubject::onNext);
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
RxBleLog.d("onCharacteristicChanged characteristic=%s", characteristic.getUuid());
super.onCharacteristicChanged(gatt, characteristic);
bluetoothGattBehaviorSubject.onNext(gatt);
just(characteristic)
.map(associateCharacteristicWithBytes())
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(changedCharacteristicPublishSubject::onNext);
}
@Override
public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
RxBleLog.d("onCharacteristicRead descriptor=%s status=%d", descriptor.getUuid(), status);
super.onDescriptorRead(gatt, descriptor, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.DESCRIPTOR_READ)) {
return;
}
just(descriptor)
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(readDescriptorPublishSubject::onNext);
}
@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
RxBleLog.d("onDescriptorWrite descriptor=%s status=%d", descriptor.getUuid(), status);
super.onDescriptorWrite(gatt, descriptor, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.DESCRIPTOR_WRITE)) {
return;
}
just(descriptor)
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(writeDescriptorPublishSubject::onNext);
}
@Override
public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
RxBleLog.d("onReliableWriteCompleted status=%d", status);
super.onReliableWriteCompleted(gatt, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.RELIABLE_WRITE_COMPLETED)) {
return;
}
// TODO Implement reliable write
}
@Override
public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
RxBleLog.d("onReadRemoteRssi rssi=%d status=%d", rssi, status);
super.onReadRemoteRssi(gatt, rssi, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.READ_RSSI)) {
return;
}
Observable.just(rssi)
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(readRssiPublishSubject::onNext);
}
@Override
public void onMtuChanged(BluetoothGatt gatt, int mtu, int status) {
RxBleLog.d("onMtuChanged mtu=%d status=%d", mtu, status);
super.onMtuChanged(gatt, mtu, status);
bluetoothGattBehaviorSubject.onNext(gatt);
if (propagateStatusErrorIfGattErrorOccurred(status, BleGattOperationType.ON_MTU_CHANGED)) {
return;
}
Observable.just(mtu)
.compose(getSubscribeAndObserveOnTransformer())
.subscribe(changedMtuPublishSubject::onNext);
}
};
@NonNull
private Observable<ByteAssociation<BluetoothGattCharacteristic>> just(BluetoothGattCharacteristic bluetoothGattCharacteristic) {
final byte[] value = bluetoothGattCharacteristic.getValue();
return Observable.defer(() -> Observable.just(ByteAssociation.create(bluetoothGattCharacteristic, value)));
}
@NonNull
private Func1<ByteAssociation<BluetoothGattCharacteristic>, ByteAssociation<UUID>> associateCharacteristicWithBytes() {
return pair -> new ByteAssociation<>(pair.first.getUuid(), pair.second);
}
@NonNull
private Observable<ByteAssociation<BluetoothGattDescriptor>> just(BluetoothGattDescriptor bluetoothGattDescriptor) {
final byte[] value = bluetoothGattDescriptor.getValue();
return Observable.defer(() -> Observable.just(ByteAssociation.create(bluetoothGattDescriptor, value)));
}
private RxBleConnectionState mapConnectionStateToRxBleConnectionStatus(int newState) {
switch (newState) {
case BluetoothGatt.STATE_CONNECTING:
return RxBleConnectionState.CONNECTING;
case BluetoothGatt.STATE_CONNECTED:
return RxBleConnectionState.CONNECTED;
case BluetoothGatt.STATE_DISCONNECTING:
return RxBleConnectionState.DISCONNECTING;
default:
return RxBleConnectionState.DISCONNECTED;
}
}
private <T> Observable.Transformer<T, T> getSubscribeAndObserveOnTransformer() {
return observable -> observable.subscribeOn(callbackScheduler).observeOn(callbackScheduler);
}
private boolean propagateStatusErrorIfGattErrorOccurred(int status, BleGattOperationType operationType) {
final boolean isError = status != BluetoothGatt.GATT_SUCCESS;
if (isError) {
statusErrorSubject.onError(new BleGattException(status, operationType));
bluetoothGattBehaviorSubject.onCompleted();
}
return isError;
}
private <T> Observable<T> withHandlingStatusError(Observable<T> observable) {
//noinspection unchecked
return Observable.merge(
(Observable<? extends T>) statusErrorSubject.asObservable(), // statusErrorSubject emits only errors
observable
);
}
public BluetoothGattCallback getBluetoothGattCallback() {
return bluetoothGattCallback;
}
public Observable<BluetoothGatt> getBluetoothGatt() {
return bluetoothGattBehaviorSubject;
}
/**
* @return Observable that never emits onNexts.
* @throws BleDisconnectedException emitted in case of a disconnect that is a part of the normal flow
* @throws BleGattException emitted in case of connection was interrupted unexpectedly.
*/
public <T> Observable<T> observeDisconnect() {
//noinspection unchecked
return disconnectedErrorObservable;
}
public Observable<RxBleConnectionState> getOnConnectionStateChange() {
return withHandlingStatusError(connectionStatePublishSubject);
}
public Observable<RxBleDeviceServices> getOnServicesDiscovered() {
return withHandlingStatusError(servicesDiscoveredPublishSubject);
}
public Observable<ByteAssociation<UUID>> getOnCharacteristicRead() {
return withHandlingStatusError(readCharacteristicPublishSubject);
}
public Observable<ByteAssociation<UUID>> getOnCharacteristicWrite() {
return withHandlingStatusError(writeCharacteristicPublishSubject);
}
public Observable<ByteAssociation<UUID>> getOnCharacteristicChanged() {
return withHandlingStatusError(changedCharacteristicPublishSubject);
}
public Observable<ByteAssociation<BluetoothGattDescriptor>> getOnDescriptorRead() {
return withHandlingStatusError(readDescriptorPublishSubject);
}
public Observable<ByteAssociation<BluetoothGattDescriptor>> getOnDescriptorWrite() {
return withHandlingStatusError(writeDescriptorPublishSubject);
}
public Observable<Integer> getOnRssiRead() {
return withHandlingStatusError(readRssiPublishSubject);
}
public RxBleConnectionState getConnectionState() {
return connectionStateAtomicReference.get();
}
}
from rxandroidble.
WIStudent
commented on May 22, 2024
I am not sure if I applied your changes correctly, but it seams that BluetoothGatt is still not closed
09-08 19:48:18.962 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(25496177)
09-08 19:48:18.966 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(116164036)
09-08 19:48:18.970 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(254716787)
09-08 19:48:18.972 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(1233966)
09-08 19:48:18.974 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(43775077)
09-08 19:48:18.976 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(202579784)
09-08 19:48:18.978 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(27928007)
09-08 19:48:18.981 26825-27052/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(171573650)
09-08 19:48:18.982 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationServicesDiscover(266080148)
09-08 19:48:18.984 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(25496177)
09-08 19:48:19.039 26825-26869/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=12345678-1234-5678-1234-56789abc0000 status=1
09-08 19:48:19.049 26825-26869/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationDisconnect(176898444)
09-08 19:48:19.051 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(25496177)
09-08 19:48:19.053 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(116164036)
09-08 19:48:19.068 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.082 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.085 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(116164036)
09-08 19:48:19.086 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(254716787)
09-08 19:48:19.163 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.165 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(254716787)
09-08 19:48:19.166 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(1233966)
09-08 19:48:19.220 26825-26869/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=12345678-1234-5678-1234-56789abc0001 status=1
09-08 19:48:19.259 26825-27055/de.tobiastrumm.bluetoothledmatrix V/RenderScript: 0x7f9611b000 Launching thread(s), CPUs 6
09-08 19:48:19.294 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.296 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(1233966)
09-08 19:48:19.297 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(43775077)
09-08 19:48:19.315 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.317 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(43775077)
09-08 19:48:19.318 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(202579784)
09-08 19:48:19.326 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.327 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(202579784)
09-08 19:48:19.328 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(27928007)
09-08 19:48:19.342 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.344 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(27928007)
09-08 19:48:19.345 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(171573650)
09-08 19:48:19.353 26825-26851/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=12345678-1234-5678-1234-56789abc0003 status=1
09-08 19:48:19.358 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.360 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(171573650)
09-08 19:48:19.361 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationDisconnect(176898444)
09-08 19:48:19.375 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.376 26825-26825/de.tobiastrumm.bluetoothledmatrix D/BluetoothManager: getConnectionState()
09-08 19:48:19.377 26825-26825/de.tobiastrumm.bluetoothledmatrix D/BluetoothManager: getConnectedDevices
09-08 19:48:19.379 26825-26825/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: cancelOpen() - device: B8:27:EB:A7:1B:9D
09-08 19:48:19.382 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationDisconnect(176898444)
09-08 19:48:19.385 26825-26837/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=5 device=B8:27:EB:A7:1B:9D
09-08 19:48:19.386 26825-26837/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onConnectionStateChange newState=0 status=0
Actually I am starting to belive that this isn't an issue with RxAndroidBle but with Android itself. I originally assumed that closing BluetoothGatt would clear the cache that holds the mapping between characteristic UUIDs and handles. I did some more tests and noticed that the following scenario still causes CHARACTERISTIC_READ errors despite closing BluetoothGatt:
- GATT service is created on the peripheral
- App connects to the peripheral
- App reads from/writes to characteristics
- App unsubscribes from connectionObervable -> Device disconnects, BluetoothGatt is closed
- On the peripheral the service is removed and added again. This causes the characteristics' handles to change
- The app connects to the peripheral again
- The app tries to read from a characteristic -> BleGattException(status=1, CHARACTERISTIC_READ), the device is disconnected, BluetoothGatt is not closed
I did some research and found this issue: Android does not discover services if device supports Service Changed. It seams that Android assumes that handles won't change, even if the peripheral includes the "service changed" characteristic. This also explains why the issue is solved by disabling and re-enabling bluetooth on the Android device.
For me personally this isn't a big issue because all I wanted to do was to experiment with BLE and to control some LEDs with it. I just have to make sure that the handles don't change while I am using it, or I have to restart bluetooth on my Android device.
But if you want to look further into the issue of changing handles, I put the code that uses BlueZ to create the peripheral and the code for the app on Github a few days ago.
https://github.com/WIStudent/Bluetooth-Low-Energy-LED-Matrix
https://github.com/WIStudent/Bluetooth-LED-Matrix-App
from rxandroidble.
dariuszseweryn
commented on May 22, 2024
Thanks for sharing the code - I will try to recreate the issue locally.
There are two issues I want to address:
- Connection is not being properly closed because somehow the final callback comes after the
RxBleOperationDisconnectfinishes like you can see here:
09-08 19:48:19.361 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationDisconnect(176898444)
09-08 19:48:19.375 26825-26825/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:27)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
09-08 19:48:19.376 26825-26825/de.tobiastrumm.bluetoothledmatrix D/BluetoothManager: getConnectionState()
09-08 19:48:19.377 26825-26825/de.tobiastrumm.bluetoothledmatrix D/BluetoothManager: getConnectedDevices
09-08 19:48:19.379 26825-26825/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: cancelOpen() - device: B8:27:EB:A7:1B:9D
09-08 19:48:19.382 26825-27049/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationDisconnect(176898444)
09-08 19:48:19.385 26825-26837/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=5 device=B8:27:EB:A7:1B:9D
09-08 19:48:19.386 26825-26837/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onConnectionStateChange newState=0 status=0
This situation prevent's closing the BluetoothGatt even when calling BluetoothGatt.close().
The second thing is to allow using BluetoothGatt.refresh() method via reflection. Calling this method should allow proper functioning of BLE devices that change their services / characteristics without putting the BluetoothAdapter through on/off cycle.
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lavenj
commented on May 22, 2024
Hi @DariuszAniszewski -- I'm seeing the same output in my project. It seems like the disconnect callbacks are being fired before the connection actually closes. Is this a correct assessment? Any possibility for a bugfix?
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dariuszseweryn
commented on May 22, 2024
@lavenj @WIStudent Sorry for such a long wait. I have a possible bugfix for the situation where the BluetoothGatt.close() method is being called before the Android actually disconnects the BluetoothGatt.
I could either push the possible fix to a branch for you to test or I will try to setup the test procedure myself.
Best Regards
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WIStudent
commented on May 22, 2024
I moved on to a different project so I can't test it at the moment.
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lavenj
commented on May 22, 2024
@dariuszseweryn thanks for looking at this! We have a reasonable workaround implemented so are OK for now. This library continues to be a huge help.
Off-topic but discovered RxBleAdapterStateObservable while digging through the source. So clean and easy! You should throw it in the docs if it's not already in there 😄
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dariuszseweryn
commented on May 22, 2024
@lavenj can you share more info about the workaround?
About the RxBleAdapterStateObservable I will think about mentioning it the docs. ;)
@WIStudent I am trying to use your Raspberry Pi 3 script to recreate the issue. I have installed a fresh Raspbian on the RPi3 and commented out all interactions with the display from the source code. I have enabled the bluetooth by calling sudo systemctl enable bluetooth but still the script returns:
GattManager1 interface not found
LEAdvertisingManager1 interface not found
Traceback (most recent call last):
File "led_matrix.py", line 216, in <module>
main()
File "led_matrix.py", line 194, in main
service_manager.RegisterApplication(app.get_path(), {},
AttributeError: 'NoneType' object has no attribute 'RegisterApplication'
I am not very experienced with linux and Raspberry Pi configuration so maybe you could point me in the right direction. Possible causes I can think off:
- I should enable something in the system prior to running the script
- I must update the BlueZ 5.23 -> 5.41 (rather a cumbersome process from what I have googled so far)
- I lack of some dependencies with the DBus but the imports didn't failed so I don't think so
Any hints you could give me?
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WIStudent
commented on May 22, 2024
I highly recommend updating Bluez to the latest version (which is currently 5.43) . Some of its BLE features are quite new and might not be impemented in an older version. I used this tutorial to compile and install Bluez from source on a Raspberry Pi. It should only take a few minutes.
If you don't want to update, you need to set at least the --experimental flag in the bluez service configuration in order to access the missing dbus interfaces. The process is described at the end of the tutorial.
If you have still issues accessing the dbus interfaces after that, make sure that you have the packages python-gi, python3-gi and python-dbus installed.
sudo apt-get install python-gi python3-gi python-dbus
The first two will install the python 2 and 3 bindings for GObject, the third one will install the python-dbus library.
If you downloaded the bluez source directory, you can also try to run the example-gatt-server and the example-advertisement python script from the bluez-5.xx/test folder. The first one creates a heart rate GATT service and the second one creates the corresponding advertisement. They use the same libraries I used in my script.
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dariuszseweryn
commented on May 22, 2024
@WIStudent
Thank you for the instructions. I have updated the BlueZ according to the tutorial flawlessly. I have checked your code against current master branch using code:
rxBleClient.getBleDevice(macAddress)
.establishConnection(this, false)
.flatMap(rxBleConnection -> Observable
.interval(1, TimeUnit.SECONDS)
.flatMap(i -> rxBleConnection.readCharacteristic(UUID.fromString("00002a38-0000-1000-8000-00805f9b34fb")))
)
.subscribe(
read -> Log.d("read", "read"),
error -> Log.e("XXX", "Error", error)
);
which connects to the RPi3 and every second it tries to read a characteristic. Then at some point I closed the gatt server script and got a proper closing of the BluetoothGatt.
11-04 14:42:31.026 25628-26420/com.polidea.rxandroidble.sample D/read: read
11-04 14:42:31.028 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(203958134)
11-04 14:42:31.924 25628-30697/com.polidea.rxandroidble.sample D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(21262938)
11-04 14:42:31.924 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(21262938)
11-04 14:42:32.035 25628-25639/com.polidea.rxandroidble.sample D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=00002a38-0000-1000-8000-00805f9b34fb status=0
11-04 14:42:32.036 25628-26420/com.polidea.rxandroidble.sample D/read: read
11-04 14:42:32.036 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(21262938)
11-04 14:42:32.924 25628-30697/com.polidea.rxandroidble.sample D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(86345726)
11-04 14:42:32.925 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(86345726)
11-04 14:42:32.995 25628-25658/com.polidea.rxandroidble.sample D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=00002a38-0000-1000-8000-00805f9b34fb status=0
11-04 14:42:32.996 25628-26420/com.polidea.rxandroidble.sample D/read: read
11-04 14:42:32.996 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(86345726)
11-04 14:42:33.929 25628-30697/com.polidea.rxandroidble.sample D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(116747362)
11-04 14:42:33.943 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(116747362)
11-04 14:42:34.076 25628-25640/com.polidea.rxandroidble.sample D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=00002a38-0000-1000-8000-00805f9b34fb status=1
11-04 14:42:34.076 25628-25640/com.polidea.rxandroidble.sample I/RxBle#RadioOperation: onError
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
11-04 14:42:34.077 25628-25640/com.polidea.rxandroidble.sample E/XXX: Error
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:356)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:249)
at android.os.Binder.execTransact(Binder.java:453)
11-04 14:42:34.077 25628-25640/com.polidea.rxandroidble.sample D/RxBle#Radio: QUEUED RxBleRadioOperationDisconnect(149083612)
11-04 14:42:34.078 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(116747362)
11-04 14:42:34.078 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: STARTED RxBleRadioOperationDisconnect(149083612)
11-04 14:42:34.078 25628-25628/com.polidea.rxandroidble.sample D/BluetoothManager: getConnectionState()
11-04 14:42:34.078 25628-25628/com.polidea.rxandroidble.sample D/BluetoothManager: getConnectedDevices
11-04 14:42:34.080 25628-25628/com.polidea.rxandroidble.sample D/BluetoothGatt: cancelOpen() - device: B8:27:EB:B3:78:18
11-04 14:42:34.085 25628-25639/com.polidea.rxandroidble.sample D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=5 device=B8:27:EB:B3:78:18
11-04 14:42:34.085 25628-25639/com.polidea.rxandroidble.sample D/RxBle#BluetoothGatt: onConnectionStateChange newState=0 status=0
11-04 14:42:34.086 25628-25641/com.polidea.rxandroidble.sample D/RxBle#Radio: FINISHED RxBleRadioOperationDisconnect(149083612)
11-04 14:42:34.086 25628-25628/com.polidea.rxandroidble.sample D/BluetoothGatt: close()
11-04 14:42:34.086 25628-25628/com.polidea.rxandroidble.sample D/BluetoothGatt: unregisterApp() - mClientIf=5
So perhaps some recent fix has unintentionally fixed this issue as well. I was checking with Nexus 5 and Nexus 5X both with Android 6.0.1. Fun fact: I couldn't get any device with Android < 6.0 to connect to the Raspberry Pi 3 - always getting status=133 (GATT_ERROR) when connecting.
It would be awesome if you could re-check this issue using the SNAPSHOT release or the newest version if it will be available before.
Yet - I still need to add a refresh() function for clearing the BluetoothGatt state.
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WIStudent
commented on May 22, 2024
I tested it again with the 1.1.0-SNAPSHOT. I used bluez-5.41 again on the Pi to rule out any changes on that side. But Unfortunately I have upgraded my Nexus 5x to Android 7.0 in the meantime so I can't tell if the problem is solved in Android 6.
Interestingly the behavior changed in Android 7 again. Reading from and writing to an existing characteristic works as expected.
11-06 22:01:59.785 28082-28082/de.tobiastrumm.bluetoothledmatrix D/LedControlActivity: Pressed button [0][0]
11-06 22:01:59.794 28082-28082/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(90263684)
11-06 22:01:59.795 28082-28082/de.tobiastrumm.bluetoothledmatrix D/LedMatrix: Old: Col 0 Color 1: 00000000 00000000
11-06 22:01:59.796 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(90263684)
11-06 22:01:59.796 28082-28082/de.tobiastrumm.bluetoothledmatrix D/LedMatrix: New: Col 0 Color 1: 01000000 00000000
11-06 22:01:59.805 28082-28082/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicWrite(58975849)
11-06 22:01:59.960 28082-28098/de.tobiastrumm.bluetoothledmatrix W/BluetoothGatt: onCharacteristicRead() - Device=B8:27:EB:A7:1B:9D handle=48 Status=0
11-06 22:01:59.962 28082-28098/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=12345678-1234-5678-1234-56789abc0000 status=0
11-06 22:01:59.965 28082-28214/de.tobiastrumm.bluetoothledmatrix D/LedControlActivity: read
11-06 22:01:59.968 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(90263684)
11-06 22:01:59.968 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicWrite(58975849)
11-06 22:02:00.079 28082-28094/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicWrite characteristic=12345678-1234-5678-1234-56789abc0000 status=0
11-06 22:02:00.081 28082-28214/de.tobiastrumm.bluetoothledmatrix D/LedControlActivity: write
11-06 22:02:00.081 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicWrite(58975849)
Bluez on the Pi received and sent the following packets (Use sudo btmon see the packets in real time)
> ACL Data RX: Handle 64 flags 0x02 dlen 7 [hci0] 1357.182785
ATT: Read Request (0x0a) len 2
Handle: 0x0030
< ACL Data TX: Handle 64 flags 0x00 dlen 7 [hci0] 1357.185679
ATT: Read Response (0x0b) len 2
Value: 0000
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 1357.302857
ATT: Write Request (0x12) len 4
Handle: 0x0030
Data: 4000
< ACL Data TX: Handle 64 flags 0x00 dlen 5 [hci0] 1357.312835
ATT: Write Response (0x13) len 0
The next log shows the attempt to read and write the same characteristic after it was removed:
11-06 22:04:49.168 28082-28082/de.tobiastrumm.bluetoothledmatrix D/LedControlActivity: Pressed button [0][0]
11-06 22:04:49.171 28082-28082/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(229704388)
11-06 22:04:49.172 28082-28082/de.tobiastrumm.bluetoothledmatrix D/LedMatrix: Old: Col 0 Color 2: 01010000 00000000
11-06 22:04:49.172 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(229704388)
11-06 22:04:49.172 28082-28082/de.tobiastrumm.bluetoothledmatrix D/LedMatrix: New: Col 0 Color 2: 10010000 00000000
11-06 22:04:49.175 28082-28082/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicWrite(48455593)
11-06 22:04:49.281 28082-28094/de.tobiastrumm.bluetoothledmatrix W/BluetoothGatt: onCharacteristicRead() - Device=B8:27:EB:A7:1B:9D handle=48 Status=1
11-06 22:04:49.283 28082-28094/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=12345678-1234-5678-1234-56789abc0000 status=1
11-06 22:04:49.286 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(229704388)
11-06 22:04:49.286 28082-28094/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: Read: Error
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:287)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:117)
at android.os.Binder.execTransact(Binder.java:565)
11-06 22:04:49.287 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicWrite(48455593)
11-06 22:04:49.288 28082-28082/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: Write: Error
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:287)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:117)
at android.os.Binder.execTransact(Binder.java:565)
11-06 22:04:49.289 28082-28105/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicWrite(48455593)
11-06 22:04:49.402 28082-28095/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicWrite characteristic=12345678-1234-5678-1234-56789abc0000 status=1
> ACL Data RX: Handle 64 flags 0x02 dlen 7 [hci0] 1526.505062
ATT: Read Request (0x0a) len 2
Handle: 0x0030
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 1526.505427
ATT: Error Response (0x01) len 4
Read Request (0x0a)
Handle: 0x0030
Error: Invalid Handle (0x01)
> ACL Data RX: Handle 64 flags 0x02 dlen 9 [hci0] 1526.625134
ATT: Write Request (0x12) len 4
Handle: 0x0030
Data: 9000
< ACL Data TX: Handle 64 flags 0x00 dlen 9 [hci0] 1526.625376
ATT: Error Response (0x01) len 4
Write Request (0x12)
Handle: 0x0030
Error: Invalid Handle (0x01)
The BleGattExceptions are still thrown but instead of closing the connection automatically it is now kept alive.
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dariuszseweryn
commented on May 22, 2024
I wish I had written tests for RxBleGattCallback earlier. No disconnection when receiving status error is a behaviour planned for release 2.0.0 but it is a bug in 1.x.x.
from rxandroidble.
dariuszseweryn
commented on May 22, 2024
@WIStudent Excuse me for asking again but I have fixed the behaviour to be inline with 1.x.x and it should be working fine now. (I hope... - it at least works as intended for me)
Thanks! Cheers!
from rxandroidble.
WIStudent
commented on May 22, 2024
I switched to the 1.2.0-SNAPSHOT and tested it again. Now I see the same behavior as you do.
11-18 21:01:59.212 23273-23273/de.tobiastrumm.bluetoothledmatrix D/LedControlActivity: Pressed button [2][3]
11-18 21:01:59.217 23273-23273/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicRead(75725609)
11-18 21:01:59.219 23273-23273/de.tobiastrumm.bluetoothledmatrix D/LedMatrix: Old: Col 3 Color 2: 00000001 00000000
11-18 21:01:59.220 23273-23273/de.tobiastrumm.bluetoothledmatrix D/LedMatrix: New: Col 3 Color 2: 00000010 00000000
11-18 21:01:59.220 23273-23627/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationCharacteristicRead(75725609)
11-18 21:01:59.226 23273-23273/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationCharacteristicWrite(57374650)
11-18 21:01:59.355 23273-23285/de.tobiastrumm.bluetoothledmatrix W/BluetoothGatt: onCharacteristicRead() - Device=B8:27:EB:A7:1B:9D handle=35 Status=1
11-18 21:01:59.357 23273-23285/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onCharacteristicRead characteristic=12345678-1234-5678-1234-56789abc0002 status=1
11-18 21:01:59.363 23273-23285/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: Read: Error
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:287)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:117)
at android.os.Binder.execTransact(Binder.java:565)
11-18 21:01:59.363 23273-23285/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: Write: Error
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:287)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:117)
at android.os.Binder.execTransact(Binder.java:565)
11-18 21:01:59.364 23273-23285/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: Read: Error
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:287)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:117)
at android.os.Binder.execTransact(Binder.java:565)
11-18 21:01:59.364 23273-23285/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: Write: Error
BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:287)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:117)
at android.os.Binder.execTransact(Binder.java:565)
11-18 21:01:59.366 23273-23285/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: REMOVED RxBleRadioOperationCharacteristicWrite(57374650)
11-18 21:01:59.367 23273-23273/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: QUEUED RxBleRadioOperationDisconnect(221169268)
11-18 21:01:59.367 23273-23627/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationCharacteristicRead(75725609)
11-18 21:01:59.368 23273-23627/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: STARTED RxBleRadioOperationDisconnect(221169268)
11-18 21:01:59.392 23273-23273/de.tobiastrumm.bluetoothledmatrix E/LedControlActivity: BleGattException{status=1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.propagateStatusErrorIfGattErrorOccurred(RxBleGattCallback.java:248)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback.access$100(RxBleGattCallback.java:25)
at com.polidea.rxandroidble.internal.connection.RxBleGattCallback$1.onCharacteristicRead(RxBleGattCallback.java:97)
at android.bluetooth.BluetoothGatt$1.onCharacteristicRead(BluetoothGatt.java:287)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:117)
at android.os.Binder.execTransact(Binder.java:565)
11-18 21:01:59.398 23273-23273/de.tobiastrumm.bluetoothledmatrix D/BluetoothManager: getConnectionState()
11-18 21:01:59.398 23273-23273/de.tobiastrumm.bluetoothledmatrix D/BluetoothManager: getConnectedDevices
11-18 21:01:59.492 23273-23273/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: cancelOpen() - device: B8:27:EB:A7:1B:9D
11-18 21:01:59.495 23273-23286/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=5 device=B8:27:EB:A7:1B:9D
11-18 21:01:59.496 23273-23286/de.tobiastrumm.bluetoothledmatrix D/RxBle#BluetoothGatt: onConnectionStateChange newState=0 status=0
11-18 21:01:59.497 23273-23627/de.tobiastrumm.bluetoothledmatrix D/RxBle#Radio: FINISHED RxBleRadioOperationDisconnect(221169268)
11-18 21:01:59.539 23273-23273/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: close()
11-18 21:01:59.539 23273-23273/de.tobiastrumm.bluetoothledmatrix D/BluetoothGatt: unregisterApp() - mClientIf=5
from rxandroidble.
dariuszseweryn
commented on May 22, 2024
So it seems that cause of this issue (that is in the topic) is resolved.
The error occurs because the handles had changed but the connection is disconnected and closed properly. Thank you for reporting and feedback. Cheers!
from rxandroidble.
Related Issues (20)
- Wrong permission checked in sample-kotlin app
- Strange unresolved methods HOT 1
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- BleGattCharacteristicException while readCharacteristic HOT 12
- scanResult.bleDevice.name not showing Ble updated name HOT 1
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- GenericFailure<CharacteristicValueUpdateError> HOT 11
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