android.bluetooth.BluetoothAdapter#startLeScan ( )源码实例Demo

private void startScan() {
  BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
  if (adapter != null && adapter.isEnabled()) {
    if (!adapter.startLeScan(leScanCallback)) {
      getErrorSubject().onError(new ConnectionError(SCAN_FAILED));

      if (RxCentralLogger.isError()) {
        RxCentralLogger.error("startLeScan failed.");
      }
    }
  } else {
    if (RxCentralLogger.isError()) {
      if (adapter == null) {
        RxCentralLogger.error("startScan - Default Bluetooth Adapter is null!");
      } else {
        RxCentralLogger.error("startScan - Bluetooth Adapter is disabled.");
      }
    }

    getErrorSubject().onError(new ConnectionError(SCAN_FAILED));
  }
}
 

@Override
@SuppressWarnings({"SpellCheckingInspection", "deprecation"})
protected void onStart(BluetoothAdapter adapter, int scanMode) {
    boolean ret;
    UUID uuids[] = scannerConfiguration.getServiceUUIDs();
    if (uuids.length > 0 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        ret = adapter.startLeScan(uuids, callback);
    } else {
        ret = adapter.startLeScan(callback);
    }

    if (ret) {
        NeatleLogger.d("Bluetooth LE scan started.");
    } else {
        NeatleLogger.i("Bluetooth LE scan failed to start. State = " + adapter.getState());
    }
}
 

public void startScan() {
    scanned.clear();
    BluetoothAdapter adapter = getAdapter();
    if (BuildConfig.DEBUG) {
        Log.d(L,"startLeScan, thread="+Thread.currentThread().getName()+", adapter="+(adapter==null?"null":"not null"));
    }
    if (adapter != null) {
        if (!isScanning(adapter)) {
            adapter.startLeScan(leScanCallback);
            isScanning = true;
        }
    }
}
 

@Override
@RequiresPermission(allOf = {Manifest.permission.BLUETOOTH_ADMIN, Manifest.permission.BLUETOOTH})
public void run() {
	final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
	if (adapter != null && powerSaveRestInterval > 0 && powerSaveScanInterval > 0) {
		adapter.startLeScan(scanCallback);
		powerSaveHandler.postDelayed(powerSaveSleepTask, powerSaveScanInterval);
	}
}
 

@SuppressWarnings("deprecation")
@Override
public void startScan(BluetoothAdapter adapter, List<ScanFilterCompat> filters, ScanSettingsCompat settings, ScanCallbackCompat callbackCompat) {
    adapter.startLeScan(registerCallback(filters, callbackCompat));
}
 

@SuppressWarnings("deprecation")
@Override
public void startScan(BluetoothAdapter adapter, ScanCallbackCompat callbackCompat) {
    adapter.startLeScan(registerCallback(null, callbackCompat));
}