content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.bluetooth.le;
  
  import java.util.List;
  
  /**
   * Bluetooth LE scan callbacks. Scan results are reported using these callbacks.
   *
   * @see BluetoothLeScanner#startScan
   */
  public abstract class ScanCallback {
      /**
       * Fails to start scan as BLE scan with the same settings is already started by the app.
       */
      public static final int SCAN_FAILED_ALREADY_STARTED = 1;
  
      /**
       * Fails to start scan as app cannot be registered.
       */
      public static final int SCAN_FAILED_APPLICATION_REGISTRATION_FAILED = 2;
  
      /**
       * Fails to start scan due an internal error
       */
      public static final int SCAN_FAILED_INTERNAL_ERROR = 3;
  
      /**
       * Fails to start power optimized scan as this feature is not supported.
       */
      public static final int SCAN_FAILED_FEATURE_UNSUPPORTED = 4;
  
      /**
       * Fails to start scan as it is out of hardware resources.
       *
       * @hide
       */
      public static final int SCAN_FAILED_OUT_OF_HARDWARE_RESOURCES = 5;
  
      /**
       * Fails to start scan as application tries to scan too frequently.
       * @hide
       */
      public static final int SCAN_FAILED_SCANNING_TOO_FREQUENTLY = 6;
  
      static final int NO_ERROR = 0;
  
      /**
       * Callback when a BLE advertisement has been found.
       *
       * @param callbackType Determines how this callback was triggered. Could be one of {@link
       * ScanSettings#CALLBACK_TYPE_ALL_MATCHES}, {@link ScanSettings#CALLBACK_TYPE_FIRST_MATCH} or
       * {@link ScanSettings#CALLBACK_TYPE_MATCH_LOST}
       * @param result A Bluetooth LE scan result.
       */
      public void onScanResult(int callbackType, ScanResult result) {
      }
  
      /**
       * Callback when batch results are delivered.
       *
       * @param results List of scan results that are previously scanned.
       */
      public void onBatchScanResults(List<ScanResult> results) {
      }
  
      /**
       * Callback when scan could not be started.
       *
       * @param errorCode Error code (one of SCAN_FAILED_*) for scan failure.
       */
      public void onScanFailed(int errorCode) {
      }
  }
  