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Code Releases Wiki Activity

Drastic rewrite of discovery activity.

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- get rid of pre-lollipop BLE discovery (nowadays we support only lollipop and above) and related preference
- get rid of the sequenced BT-then-BLE-scan that wasn't working reliably anyway and was causing a recursion
- add a caching layer for already processed devices (the same device is found multiple times during discovery)
- add a caching layer for device name in GBDeviceCandidate (many coordinators will ask for it, and it's a very expensive operation)
This commit is contained in:
Daniele Gobbetti 2022-11-27 18:56:10 +01:00
parent 5d78b778e3
commit 7f24ba8ffb
4 changed files with 91 additions and 181 deletions
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9
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBApplication.java
View File

@ -116,7 +116,7 @@ public class GBApplication extends Application {
private static SharedPreferences sharedPrefs;
private static final String PREFS_VERSION = "shared_preferences_version";
//if preferences have to be migrated, increment the following and add the migration logic in migratePrefs below; see http://stackoverflow.com/questions/16397848/how-can-i-migrate-android-preferences-with-a-new-version
private static final int CURRENT_PREFS_VERSION = 18;
private static final int CURRENT_PREFS_VERSION = 19;
private static LimitedQueue mIDSenderLookup = new LimitedQueue(16);
private static Prefs prefs;
@ -1183,7 +1183,12 @@ public class GBApplication extends Application {
} catch (Exception e) {
Log.w(TAG, "error acquiring DB lock");
}
}
if (oldVersion < 19) {
//remove old ble scanning prefences, now unsupported
editor.remove("disable_new_ble_scanning");
}
}
editor.putString(PREFS_VERSION, Integer.toString(CURRENT_PREFS_VERSION));
editor.apply();

250
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/DiscoveryActivity.java
View File

@ -18,8 +18,6 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
package nodomain.freeyourgadget.gadgetbridge.activities;
import static nodomain.freeyourgadget.gadgetbridge.util.GB.toast;
import android.Manifest;
import android.app.Activity;
import android.app.AlertDialog;
@ -68,11 +66,14 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import nodomain.freeyourgadget.gadgetbridge.GBApplication;
import nodomain.freeyourgadget.gadgetbridge.R;
@ -91,6 +92,8 @@ import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper;
import nodomain.freeyourgadget.gadgetbridge.util.GB;
import nodomain.freeyourgadget.gadgetbridge.util.Prefs;
import static nodomain.freeyourgadget.gadgetbridge.util.GB.toast;
public class DiscoveryActivity extends AbstractGBActivity implements AdapterView.OnItemClickListener, AdapterView.OnItemLongClickListener, BondingInterface {
private static final Logger LOG = LoggerFactory.getLogger(DiscoveryActivity.class);
@ -98,10 +101,6 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
private final Handler handler = new Handler();
private final ArrayList<GBDeviceCandidate> deviceCandidates = new ArrayList<>();
private ScanCallback newBLEScanCallback = null;
/**
* Use old BLE scanning
**/
private boolean oldBleScanning = false;
/**
* If already bonded devices are to be ignored when scanning
*/
@ -111,27 +110,18 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
private ProgressBar bluetoothLEProgress;
private DeviceCandidateAdapter deviceCandidateAdapter;
private GBDeviceCandidate deviceTarget;
private final BluetoothAdapter.LeScanCallback leScanCallback = new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
//logMessageContent(scanRecord);
handleDeviceFound(device, (short) rssi);
}
};
private BluetoothAdapter adapter;
private BluetoothLeScanner bluetoothLeScanner;
private Button startButton;
private Scanning isScanning = Scanning.SCANNING_OFF;
private boolean scanning;
private long selectedUnsupportedDeviceKey = DebugActivity.SELECT_DEVICE;
private Set<BTUUIDPair> foundCandidates = new HashSet<>();
private final Runnable stopRunnable = new Runnable() {
@Override
public void run() {
if (isScanning == Scanning.SCANNING_BT_NEXT_BLE) {
// Start the next scan in the series
stopDiscovery();
startDiscovery(Scanning.SCANNING_BLE);
} else {
stopDiscovery();
}
stopDiscovery();
LOG.info("Discovery stopped by thread timeout.");
}
};
private final BroadcastReceiver bluetoothReceiver = new BroadcastReceiver() {
@ -140,26 +130,6 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
switch (Objects.requireNonNull(intent.getAction())) {
case BluetoothAdapter.ACTION_DISCOVERY_STARTED: {
LOG.debug("ACTION_DISCOVERY_STARTED");
if (isScanning != Scanning.SCANNING_BLE) {
if (isScanning != Scanning.SCANNING_BT_NEXT_BLE) {
setIsScanning(Scanning.SCANNING_BT);
}
}
break;
}
case BluetoothAdapter.ACTION_DISCOVERY_FINISHED: {
LOG.debug("ACTION_DISCOVERY_FINISHED");
handler.post(new Runnable() {
@Override
public void run() {
// Continue with LE scan, if available
if (isScanning == Scanning.SCANNING_BT || isScanning == Scanning.SCANNING_BT_NEXT_BLE) {
checkAndRequestLocationPermission();
stopDiscovery();
startDiscovery(Scanning.SCANNING_BLE);
}
}
});
break;
}
case BluetoothAdapter.ACTION_STATE_CHANGED: {
@ -179,7 +149,7 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
short rssi = intent.getShortExtra(BluetoothDevice.EXTRA_RSSI, GBDevice.RSSI_UNKNOWN);
Parcelable[] uuids = intent.getParcelableArrayExtra(BluetoothDevice.EXTRA_UUID);
ParcelUuid[] uuids2 = AndroidUtils.toParcelUuids(uuids);
handleDeviceFound(device, rssi, uuids2);
addToCandidateListIfNotAlreadyProcessed(device, rssi, uuids2);
break;
}
case BluetoothDevice.ACTION_BOND_STATE_CHANGED: {
@ -246,7 +216,8 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
}
LOG.warn(result.getDevice().getName() + ": " +
((scanRecord != null) ? scanRecord.getBytes().length : -1));
handleDeviceFound(result.getDevice(), (short) result.getRssi(), uuids);
addToCandidateListIfNotAlreadyProcessed(result.getDevice(), (short) result.getRssi(), uuids);
} catch (NullPointerException e) {
LOG.warn("Error handling scan result", e);
}
@ -299,7 +270,7 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
checkAndRequestLocationPermission();
startDiscovery(Scanning.SCANNING_BT_NEXT_BLE);
startDiscovery();
}
public void onStartButtonClick(View button) {
@ -309,11 +280,7 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
} else {
deviceCandidates.clear();
deviceCandidateAdapter.notifyDataSetChanged();
if (GB.supportsBluetoothLE()) {
startDiscovery(Scanning.SCANNING_BT_NEXT_BLE);
} else {
startDiscovery(Scanning.SCANNING_BT);
}
startDiscovery();
}
}
@ -338,21 +305,21 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
@Override
protected void onDestroy() {
unregisterBroadcastReceivers();
stopAllDiscovery();
stopDiscovery();
super.onDestroy();
}
@Override
protected void onStop() {
unregisterBroadcastReceivers();
stopAllDiscovery();
stopDiscovery();
super.onStop();
}
@Override
protected void onPause() {
unregisterBroadcastReceivers();
stopAllDiscovery();
stopDiscovery();
super.onPause();
}
@ -363,19 +330,6 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
super.onResume();
}
private void stopAllDiscovery() {
try {
stopBTDiscovery();
if (oldBleScanning) {
stopOldBLEDiscovery();
} else {
stopBLEDiscovery();
}
} catch (Exception e) {
LOG.warn("Error stopping discovery", e);
}
}
private void handleDeviceFound(BluetoothDevice device, short rssi) {
if (device.getName() != null) {
if (handleDeviceFound(device, rssi, null)) {
@ -390,7 +344,20 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
}
}
handleDeviceFound(device, rssi, uuids);
addToCandidateListIfNotAlreadyProcessed(device, rssi, uuids);
}
private void addToCandidateListIfNotAlreadyProcessed(BluetoothDevice device, short rssi, ParcelUuid[] uuids) {
BTUUIDPair btuuidPair = new BTUUIDPair(device, uuids);
if(foundCandidates.contains(btuuidPair)) {
// LOG.info("candidate already processed, skipping");
return;
}
if (handleDeviceFound(device, rssi, uuids)) {
//device was considered a candidate, do not process it again unless something changed
foundCandidates.add(btuuidPair);
}
}
private boolean handleDeviceFound(BluetoothDevice device, short rssi, ParcelUuid[] uuids) {
@ -424,85 +391,39 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
return false;
}
private void startDiscovery(Scanning what) {
private void startDiscovery() {
if (isScanning()) {
LOG.warn("Not starting discovery, because already scanning.");
return;
}
LOG.info("Starting discovery: " + what);
LOG.info("Starting discovery");
startButton.setText(getString(R.string.discovery_stop_scanning));
if (ensureBluetoothReady() && isScanning == Scanning.SCANNING_OFF) {
if (what == Scanning.SCANNING_BT || what == Scanning.SCANNING_BT_NEXT_BLE) {
startBTDiscovery(what);
} else if (what == Scanning.SCANNING_BLE && GB.supportsBluetoothLE()) {
if (oldBleScanning) {
startOldBTLEDiscovery();
} else {
startBTLEDiscovery();
}
if (ensureBluetoothReady()) {
if (GB.supportsBluetoothLE()) {
startBTLEDiscovery();
startBTDiscovery();
} else {
discoveryFinished();
toast(DiscoveryActivity.this, getString(R.string.discovery_enable_bluetooth), Toast.LENGTH_SHORT, GB.ERROR);
startBTDiscovery();
}
setScanning(true);
} else {
discoveryFinished();
toast(DiscoveryActivity.this, getString(R.string.discovery_enable_bluetooth), Toast.LENGTH_SHORT, GB.ERROR);
}
}
private void stopDiscovery() {
LOG.info("Stopping discovery");
if (isScanning()) {
Scanning wasScanning = isScanning;
if (wasScanning == Scanning.SCANNING_BT || wasScanning == Scanning.SCANNING_BT_NEXT_BLE) {
stopBTDiscovery();
} else if (wasScanning == Scanning.SCANNING_BLE) {
if (oldBleScanning) {
stopOldBLEDiscovery();
} else {
stopBLEDiscovery();
}
}
discoveryFinished();
handler.removeMessages(0, stopRunnable);
} else {
discoveryFinished();
}
stopBTDiscovery();
stopBLEDiscovery();
setScanning(false);
handler.removeMessages(0, stopRunnable);
}
private boolean isScanning() {
return isScanning != Scanning.SCANNING_OFF;
return scanning ;
}
private void startOldBTLEDiscovery() {
LOG.info("Starting old BLE discovery");
handler.removeMessages(0, stopRunnable);
handler.sendMessageDelayed(getPostMessage(stopRunnable), SCAN_DURATION);
if (adapter.startLeScan(leScanCallback)) {
LOG.info("Old Bluetooth LE scan started successfully");
bluetoothLEProgress.setVisibility(View.VISIBLE);
setIsScanning(Scanning.SCANNING_BLE);
} else {
LOG.info("Old Bluetooth LE scan starting failed");
setIsScanning(Scanning.SCANNING_OFF);
}
}
private void stopOldBLEDiscovery() {
if (adapter != null) {
adapter.stopLeScan(leScanCallback);
LOG.info("Stopped old BLE discovery");
}
setIsScanning(Scanning.SCANNING_OFF);
}
/* New BTLE Discovery uses startScan (List<ScanFilter> filters,
ScanSettings settings,
ScanCallback callback) */
private void startBTLEDiscovery() {
LOG.info("Starting BLE discovery");
@ -515,7 +436,7 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
LOG.debug("Bluetooth LE discovery started successfully");
bluetoothLEProgress.setVisibility(View.VISIBLE);
setIsScanning(Scanning.SCANNING_BLE);
setScanning(true);
}
private void stopBLEDiscovery() {
@ -540,15 +461,13 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
}
LOG.debug("Stopped BLE discovery");
setIsScanning(Scanning.SCANNING_OFF);
}
/**
* Starts a regular Bluetooth scan
*
* @param what The scan type, only either SCANNING_BT or SCANNING_BT_NEXT_BLE!
*/
private void startBTDiscovery(Scanning what) {
private void startBTDiscovery() {
LOG.info("Starting BT discovery");
try {
// LineageOS quirk, can't start scan properly,
@ -561,10 +480,8 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
if (adapter.startDiscovery()) {
LOG.debug("Discovery started successfully");
bluetoothProgress.setVisibility(View.VISIBLE);
setIsScanning(what);
} else {
LOG.error("Discovery starting failed");
setIsScanning(Scanning.SCANNING_OFF);
}
}
@ -573,26 +490,16 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
adapter.cancelDiscovery();
LOG.info("Stopped BT discovery");
}
setIsScanning(Scanning.SCANNING_OFF);
}
private void discoveryFinished() {
if (isScanning != Scanning.SCANNING_OFF) {
LOG.warn("Scan was not properly stopped: " + isScanning);
}
setIsScanning(Scanning.SCANNING_OFF);
}
private void setIsScanning(Scanning to) {
this.isScanning = to;
if (isScanning == Scanning.SCANNING_OFF) {
public void setScanning(boolean scanning) {
this.scanning = scanning;
if (scanning) {
startButton.setText(getString(R.string.discovery_stop_scanning));
} else {
startButton.setText(getString(R.string.discovery_start_scanning));
bluetoothProgress.setVisibility(View.GONE);
bluetoothLEProgress.setVisibility(View.GONE);
} else {
startButton.setText(getString(R.string.discovery_stop_scanning));
}
}
@ -606,8 +513,6 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
bluetoothProgress.setVisibility(View.GONE);
bluetoothLEProgress.setVisibility(View.GONE);
}
discoveryFinished();
}
private boolean checkBluetoothAvailable() {
@ -631,6 +536,8 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
return false;
}
this.adapter = adapter;
if(GB.supportsBluetoothLE())
this.bluetoothLeScanner = adapter.getBluetoothLeScanner();
return true;
}
@ -717,7 +624,7 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
} catch (Exception ex) {
LOG.error("Exception when checking location status: ", ex);
}
LOG.error("Problem with permissions, returning");
LOG.info("Permissions seems to be fine for scanning");
}
@Override
@ -896,7 +803,6 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
bluetoothIntents.addAction(BluetoothDevice.ACTION_UUID);
bluetoothIntents.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
bluetoothIntents.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
bluetoothIntents.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
bluetoothIntents.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
registerReceiver(bluetoothReceiver, bluetoothIntents);
@ -906,10 +812,6 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
Prefs prefs = GBApplication.getPrefs();
ignoreBonded = prefs.getBoolean("ignore_bonded_devices", true);
discoverUnsupported = prefs.getBoolean("discover_unsupported_devices", false);
oldBleScanning = prefs.getBoolean("disable_new_ble_scanning", false);
if (oldBleScanning) {
LOG.info("New BLE scanning disabled via settings, using old method");
}
int level = prefs.getInt("scanning_intensity", 1);
switch (level) {
case 0:
@ -937,22 +839,28 @@ public class DiscoveryActivity extends AbstractGBActivity implements AdapterView
return this;
}
private enum Scanning {
/**
* Regular Bluetooth scan
*/
SCANNING_BT,
/**
* Regular Bluetooth scan but when ends, start BLE scan
*/
SCANNING_BT_NEXT_BLE,
/**
* Regular BLE scan
*/
SCANNING_BLE,
/**
* Scanning has ended or hasn't been started
*/
SCANNING_OFF
private class BTUUIDPair {
private final BluetoothDevice bluetoothDevice;
private final ParcelUuid[] parcelUuid;
public BTUUIDPair(BluetoothDevice bluetoothDevice, ParcelUuid[] parcelUuid) {
this.bluetoothDevice = bluetoothDevice;
this.parcelUuid = parcelUuid;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
BTUUIDPair that = (BTUUIDPair) o;
return bluetoothDevice.equals(that.bluetoothDevice) && Arrays.equals(parcelUuid, that.parcelUuid);
}
@Override
public int hashCode() {
int result = Objects.hash(bluetoothDevice);
result = 31 * result + Arrays.hashCode(parcelUuid);
return result;
}
}
}

5
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/impl/GBDeviceCandidate.java
View File

@ -50,6 +50,7 @@ public class GBDeviceCandidate implements Parcelable {
private final short rssi;
private final ParcelUuid[] serviceUuids;
private DeviceType deviceType = DeviceType.UNKNOWN;
private String deviceName;
public GBDeviceCandidate(BluetoothDevice device, short rssi, ParcelUuid[] serviceUuids) {
this.device = device;
@ -137,7 +138,9 @@ public class GBDeviceCandidate implements Parcelable {
}
public String getName() {
String deviceName = null;
if (this.deviceName != null ) {
return this.deviceName;
}
try {
Method method = device.getClass().getMethod("getAliasName");
if (method != null) {

6
app/src/main/res/xml/discovery_pairing_preferences.xml
View File

@ -10,12 +10,6 @@
android:layout="@layout/preference_checkbox"
android:summary="@string/ignore_bonded_devices_description"
android:title="@string/ignore_bonded_devices" />
<CheckBoxPreference
android:defaultValue="false"
android:key="disable_new_ble_scanning"
android:layout="@layout/preference_checkbox"
android:summary="@string/pref_summary_disable_new_ble_scanning"
android:title="@string/pref_disable_new_ble_scanning" />
<CheckBoxPreference
android:defaultValue="false"
android:key="enable_companiondevice_pairing"