Android Open Source - interdroid-swan Call Sensor

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License

The source code is released under:

Copyright (c) 2008-2011 Vrije Universiteit, The Netherlands All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the follo...

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Java Source Code

package interdroid.swan.sensors.impl;
//from w  w w  .j a v  a2  s .  co  m
import interdroid.swan.R;
import interdroid.swan.sensors.AbstractConfigurationActivity;
import interdroid.swan.sensors.AbstractVdbSensor;
import interdroid.vdb.content.avro.AvroContentProviderProxy;
import android.content.ContentValues;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;

/**
 * Sensor for phone state.
 * 
 * @author nick &lt;palmer@cs.vu.nl&gt;
 * 
 */
public class CallSensor extends AbstractVdbSensor {

  private static final String TAG = "Call Sensor";

  /**
   * The configuration activity for this sensor.
   * 
   * @author nick &lt;palmer@cs.vu.nl&gt;
   * 
   */
  public static class ConfigurationActivity extends
      AbstractConfigurationActivity {

    @Override
    public final int getPreferencesXML() {
      return R.xml.call_preferences;
    }

  }

  /**
   * The call state.
   */
  public static final String STATE_FIELD = "call_state";

  /**
   * The phone number associated with the state if any.
   */
  public static final String PHONE_NUMBER_FIELD = "phone_number";

  /**
   * The schema for this sensor.
   */
  public static final String SCHEME = getSchema();

  /**
   * The provider for this sensor.
   * 
   * @author nick &lt;palmer@cs.vu.nl&gt;
   * 
   */
  public static class Provider extends AvroContentProviderProxy {

    /**
     * Construct the provider for this sensor.
     */
    public Provider() {
      super(SCHEME);
    }

  }

  /**
   * @return the schema for this sensor.
   */
  private static String getSchema() {
    String scheme = "{'type': 'record', 'name': 'call', "
        + "'namespace': 'interdroid.context.sensor.call',"
        + "\n'fields': [" + SCHEMA_TIMESTAMP_FIELDS + "\n{'name': '"
        + STATE_FIELD + "', 'type': 'int'}," + "\n{'name': '"
        + PHONE_NUMBER_FIELD + "', 'type': 'string'}" + "\n]" + "}";
    return scheme.replace('\'', '"');
  }

  /**
   * The telephony manager we use.
   * */
  private TelephonyManager telephonyManager;

  /**
   * The phone state listener which gets notified on call state changed.
   */
  private PhoneStateListener phoneStateListener = new PhoneStateListener() {
    @Override
    public void onCallStateChanged(final int state,
        final String incomingNumber) {
      Log.d(TAG, "Call State: " + state + " " + incomingNumber);

      long now = System.currentTimeMillis();

      ContentValues values = new ContentValues();
      values.put(STATE_FIELD, state);

      if (incomingNumber != null && incomingNumber.length() > 0) {
        values.put(PHONE_NUMBER_FIELD, incomingNumber);
      }

      putValues(values, now);
    }
  };

  @Override
  public final String[] getValuePaths() {
    return new String[] { STATE_FIELD, PHONE_NUMBER_FIELD };
  }

  @Override
  public final void initDefaultConfiguration(final Bundle defaults) {
  }

  @Override
  public final String getScheme() {
    return SCHEME;
  }

  @Override
  public final void onConnected() {
    Log.d(TAG, "call sensor connected");
  }

  @Override
  public final void register(final String id, final String valuePath,
      final Bundle configuration) {
    if (registeredConfigurations.size() == 1) {
      telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
      telephonyManager.listen(phoneStateListener,
          PhoneStateListener.LISTEN_CALL_STATE);
    }
  }

  @Override
  public final void unregister(final String id) {
    if (registeredConfigurations.size() == 0) {
      telephonyManager.listen(phoneStateListener,
          PhoneStateListener.LISTEN_NONE);
    }
  }

  @Override
  public void onDestroySensor() {
    // TODO Auto-generated method stub

  }

}

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