MrCrambo

/*
  For BLUETOOTH scans.
  Create CBCentralManager class element and call its method for scanning Bluetooth devices.
  Here is the function declaration
*/

func scanForPeripherals(withServices serviceUUIDs: [CBUUID]?, options: [String : Any]? = nil)

/*
  For BEACONS scan.

MrCrambo

/*
  For BLUETOOTH scans.
  Create CBCentralManager class element and call its method for scanning Bluetooth devices.
  Here is the function declaration
*/

func scanForPeripherals(withServices serviceUUIDs: [CBUUID]?, options: [String : Any]? = nil)

/*
  For BEACONS scan.

MrCrambo

var locationManager: CLLocationManager = {    
  let locationManager = CLLocationManager()
  locationManager.delegate = self
  locationManager.allowsBackgroundLocationUpdates = true
  return locationManager
}()

var region:CLBeaconRegion {   
  let region = CLBeaconRegion(proximityUUID: uuid, identifier: identifier)
  region.notifyEntryStateOnDisplay = true

MrCrambo

<manifest>
    ...
    <service ...
        android:foregroundServiceType="location|camera|microphone" />
</manifest>

MrCrambo

suspend fun fetchUser(): User {
  return GlobalScope.async(Dispatchers.IO) {
    // make network call
  }.await() 
}

MrCrambo

...

  bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
      @Override
      public void onStateChanged(View view, int i) {
        // ..
        // your code is here
      }

      @Override

MrCrambo

LinearLayout bottomSheet = findViewById(R.id.bottom_sheet_behavior_id);
BottomSheetBehavior bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);

// ..
// here you could find all the UI views inside your bottom sheet and initialize them
// ..

// ..
// setting the bottom sheet callback for interacting with state changes and sliding
bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {

MrCrambo

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:background="@drawable/your_bottom_sheet_background"
    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior"
    app:behavior_hideable="true"

MrCrambo

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    Intent intent = new Intent();
    String packageName = getPackageName();
    PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
    if (!pm.isIgnoringBatteryOptimizations(packageName)) {
        intent.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
        intent.setData(Uri.parse("package:" + packageName));
        startActivity(intent);
    }
}

MrCrambo

final WifiManager wifimanager = (WifiManager)  getApplicationContext().getSystemService(WIFI_SERVICE);

wifimanager.registerScanResultsCallback(getMainExecutor(), new WifiManager.ScanResultsCallback() {
    @Override
    public void onScanResultsAvailable() {
        List<ScanResult> results = wifimanager.getScanResults();
        for (ScanResult result : results) {
            System.out.println(result.BSSID);
        }
    }