我正在使用Altbeacon开发一个应用程序，我对测距信标有问题 . 事实上，我想要所有信标的范围 . 所以我必须创建一个这样的区域
Region region = new Region("backgroundRegion",
null, null, null);
但问题是我无法找到是否添加了新的信标 . 事实上，我想扫描信标，当我走到不到1米的距离时，我会向我的活动发送通知 . 这是我的 Application 课程
public class App extends Application implements BootstrapNotifier,RangeNotifier,BeaconConsumer {
private static final String TAG = "BeaconReferenceApp";
private RegionBootstrap regionBootstrap;
private BackgroundPowerSaver backgroundPowerSaver;
private boolean haveDetectedBeaconsSinceBoot = false;
private bootomsheetcontent main=null;
private BeaconManager mBeaconManager;
RangeBeaconsInRegion ranged;
public void onCreate() {
super.onCreate();
TypefaceUtil.setDefaultFont(this, "DEFAULT", "fonts/ir.ttf");
TypefaceUtil.setDefaultFont(this, "MONOSPACE", "fonts/ir.ttf");
TypefaceUtil.setDefaultFont(this, "SERIF", "fonts/ir.ttf");
TypefaceUtil.setDefaultFont(this, "SANS_SERIF", "fonts/ir.ttf");
mBeaconManager = org.altbeacon.beacon.BeaconManager.getInstanceForApplication(this);
mBeaconManager.getBeaconParsers().clear();
mBeaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("m:0-3=4c000215,i:4-19,i:20-21,i:22-23,p:24-24"));
mBeaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("x,s:0-1=feaa,m:2-2=20,d:3-3,d:4-5,d:6-7,d:8-11,d:12-15"));
mBeaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("s:0-1=feaa,m:2-2=00,p:3-3:-41,i:4-13,i:14-19"));
mBeaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("s:0-1=feaa,m:2-2=10,p:3-3:-41,i:4-20v"));
mBeaconManager.getBeaconParsers().add(new BeaconParser().
setBeaconLayout("s:0-1=fed8,m:2-2=00,p:3-3:-41,i:4-21v"));
Log.d(TAG, "setting up background monitoring for beacons and power saving");
// wake up the app when a beacon is seen
Region region = new Region("backgroundRegion",
null, null, null);
regionBootstrap = new RegionBootstrap(this, region);
// simply constructing this class and holding a reference to it in your custom Application
// class will automatically cause the BeaconLibrary to save battery whenever the application
// is not visible. This reduces bluetooth power usage by about 60%
backgroundPowerSaver = new BackgroundPowerSaver(this);
mBeaconManager.bind(this);
}
public void setHandlerListener(RangeBeaconsInRegion listener)
{
ranged=listener;
}
@Override
public void didEnterRegion(Region region) {
// In this example, this class sends a notification to the user whenever a Beacon
// matching a Region (defined above) are first seen.
sendNotification();
try {
mBeaconManager.startRangingBeaconsInRegion(region);
}
catch (RemoteException e) {
Log.d(TAG, "Can't start ranging"+e.getMessage());
}
if (!haveDetectedBeaconsSinceBoot) {
Log.d(TAG, "auto launching MainActivity");
// The very first time since boot that we detect an beacon, we launch the
// MainActivity
Intent intent = new Intent(this, bootomsheetcontent.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Important: make sure to add android:launchMode="singleInstance" in the manifest
// to keep multiple copies of this activity from getting created if the user has
// already manually launched the app.
this.startActivity(intent);
haveDetectedBeaconsSinceBoot = true;
} else {
if (main != null) {
// If the Monitoring Activity is visible, we log info about the beacons we have
// seen on its display
Log.d(TAG, "I see a beacon again" );
} else {
// If we have already seen beacons before, but the monitoring activity is not in
// the foreground, we send a notification to the user on subsequent detections.
Log.d(TAG, "Sending notification.");
sendNotification();
}
}
}
@Override
public void didExitRegion(Region region) {
beaconsSeen.clear();
try {
mBeaconManager.stopRangingBeaconsInRegion(region);
} catch (RemoteException e) {
e.printStackTrace();
}
}
@Override
public void didDetermineStateForRegion(int i, Region region) {
}
List<Beacon> AvailableBeacons=new ArrayList<Beacon>() ;
private HashSet<Beacon> beaconsSeen = new HashSet<Beacon>();
Region region;
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if(ranged!=null){
ranged.RangeBeaconsInRegion(beacons,region,beaconsSeen);
}
if (beacons.size() > 0) {
for (Beacon beacon : beacons) {
if (!beaconsSeen.contains(beacon)) {
beaconsSeen.add(beacon);
}
}
if(ranged!=null){
ranged.RangeBeaconsInRegion(beacons,region,beaconsSeen);
}
}
}
private void sendNotification() {
Bitmap image = BitmapFactory.decodeResource(getResources(), R.mipmap.b1);
Bitmap bigicon = BitmapFactory.decodeResource(getResources(), R.mipmap.b1);
// BigPictureStyle
NotificationCompat.BigPictureStyle s = new NotificationCompat.BigPictureStyle();
s.bigPicture(bigicon);
// Base notification
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setSmallIcon(R.drawable.ic_menu_send);
builder.setContentTitle(getString(R.string.apptitlenotification));
builder.setContentText(getString(R.string.nearbynotificatio));
builder.setTicker(getString(R.string.apptitlenotification));
builder.setWhen(System.currentTimeMillis());
// b.setDeleteIntent(getDismissNotificationsPendingIntent(quantity));
builder.setLargeIcon(bigicon);
builder.setStyle(s);
//Vibration
builder.setVibrate(new long[] { 100, 100, 100, 100, 100 });
//LED
builder.setLights(Color.BLUE, 3000, 3000);
Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
builder.setSound(alarmSound);
// builder.setSound(Notification.DEFAULT_SOUND);
builder.build();
// NotificationCompat.Builder builder =
// new NotificationCompat.Builder(this)
// .setContentTitle(getString(R.string.apptitlenotification))
// .setContentText(getString(R.string.nearbynotificatio))
// .setSmallIcon(R.drawable.ic_menu_send)
//// .setLargeIcon(bigicon)
//// .setStyle(s)
// .build();
// notif.flags |= Notification.FLAG_AUTO_CANCEL;;
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addNextIntent(new Intent(this, bootomsheetcontent.class));
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
builder.setContentIntent(resultPendingIntent);
NotificationManager notificationManager =
(NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1, builder.build());
}
@Override
public void onBeaconServiceConnect() {
mBeaconManager.addRangeNotifier(this);
}
}
以上代码仅在我打开信标一次并且不再工作时才有效 . 似乎 didRangeBeaconsInRegion 只为一个区域发射一次，那么我怎样才能在背景中连续发射信标呢？谢谢
这就是我在我的活动中得到回调的方式
App myApplication = (App) getApplication();
myApplication.ranged = this;
我有 implimented 它为 RangeBeaconsInRegion ，这也是它处理 RangeBeaconsInRegion 的功能
@Override
public void RangeBeaconsInRegion(Collection<Beacon> beacons, Region region, HashSet<Beacon> beaconsSeen) {
Toast.makeText(this.mContext,"test",Toast.LENGTH_LONG).show();
}