Estimote iBeacon:后台监控(Android)

时间:2014-05-27 14:41:20

标签: android background ibeacon estimote

我希望在我的应用程序处于打开状态但是处于后台时有推送通知。现在我已经更改了Estimote演示,当我的应用程序处于前台时,我的应用程序会给我一个通知,这个用户并没有太多用处。 我在这里发布了我的NotifyDemoActivity类代码,一旦打开应用程序就会调用它

public class NotifyDemoActivity extends Activity {
  private static final String TAG = NotifyDemoActivity.class.getSimpleName();
  private static final int NOTIFICATION_ID = 123;
  private BeaconManager beaconManager;
  private NotificationManager notificationManager;
  private Region region;
  private long[] mVibratePattern = { 0, 200, 200, 300 };

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.notify_demo);
    getActionBar().setDisplayHomeAsUpEnabled(true);

    beacon.getMinor());
    region = new Region("rid", null, null, null);
    notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    beaconManager = new BeaconManager(this);

    beaconManager.setBackgroundScanPeriod(TimeUnit.SECONDS.toMillis(1), 0);

    beaconManager.setMonitoringListener(new MonitoringListener() {
      @Override
      public void onEnteredRegion(Region region, List<Beacon> beacons) {
        postNotification("Entered region");
      }

      @Override
      public void onExitedRegion(Region region) {
        postNotification("Exited region");
      }
    });
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId() == android.R.id.home) {
      finish();
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  protected void onResume() {
    super.onResume();
    notificationManager.cancel(NOTIFICATION_ID);
    beaconManager.connect(new BeaconManager.ServiceReadyCallback() {
      @Override
      public void onServiceReady() {
        try {
          beaconManager.startMonitoring(region);
        } catch (RemoteException e) {
          Log.d(TAG, "Error while starting monitoring");
        }
      }
    });
  }

  @Override
  protected void onDestroy() {
    notificationManager.cancel(NOTIFICATION_ID);
    beaconManager.disconnect();
    super.onDestroy();
  }

  private void postNotification(String msg) {
    Intent notifyIntent = new Intent(NotifyDemoActivity.this, NotifyDemoActivity.class);
    notifyIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivities(
      NotifyDemoActivity.this,
      0,
      new Intent[]{notifyIntent},
      PendingIntent.FLAG_UPDATE_CURRENT);
    Notification notification = new Notification.Builder(NotifyDemoActivity.this)
    .setSmallIcon(R.drawable.beacon_gray)
    .setContentTitle("Notify Demo")
    .setContentText(msg)
    .setAutoCancel(true)
    .setContentIntent(pendingIntent)
    .setVibrate(mVibratePattern)
    .build();
    notification.defaults |= Notification.DEFAULT_SOUND;
    notification.defaults |= Notification.DEFAULT_LIGHTS;
    notificationManager.notify(NOTIFICATION_ID, notification);

    TextView statusTextView = (TextView) findViewById(R.id.status);
    statusTextView.setText(msg);
  }
}

2 个答案:

答案 0 :(得分:3)

您应该在应用程序类中保留BeaconManager而不是活动。

活动将被停止,销毁,BeaconManager将停止监控。另一方面,申请仍将保留参考,并将继续监督。

在监控应用程序类时发现信标时,可以发布通知。当用户决定点击它时,它会触发一些活动。

答案 1 :(得分:0)

您应该创建服务。

在您的代码中,您应该做一些更改。

  

beaconManager = new BeaconManager(this);

你应该开始&#34;信标服务&#34;

      if (!beaconManager.isBluetoothEnabled()) {
          stopSelf();
      }

          beaconManager.connect(new BeaconManager.ServiceReadyCallback() {
              @Override
              public void onServiceReady() {
                try {
                  beaconManager.startRanging(ALL_ESTIMOTE_BEACONS_REGION);
                } catch (RemoteException e) {
                  Log.e("error", "Cannot start ranging", e);
                }
              }
          });

同时检查设备上的蓝牙是否处于活动状态。

在过程beaconManager.setMonitoringListener中(新的MonitoringListener()添加命令以创建通知。