我希望我的应用程序在后台扫描信标，如果它们与我的信标匹配则打开一个对话框。 所以我有这个班级
import android.app.Application;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TaskStackBuilder;
import android.content.Context;
import android.content.Intent;
import android.os.RemoteException;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
import org.altbeacon.beacon.Beacon;
import org.altbeacon.beacon.BeaconConsumer;
import org.altbeacon.beacon.BeaconManager;
import org.altbeacon.beacon.BeaconParser;
import org.altbeacon.beacon.RangeNotifier;
import org.altbeacon.beacon.Region;
import org.altbeacon.beacon.powersave.BackgroundPowerSaver;
import org.altbeacon.beacon.startup.RegionBootstrap;
import org.altbeacon.beacon.startup.BootstrapNotifier;
import java.util.Collection;
/**
* Created by GIS on 28/09/2016.
*/
public class App extends Application implements BootstrapNotifier,RangeNotifier {
private static final String TAG = "BeaconReferenceApp";
private RegionBootstrap regionBootstrap;
private BackgroundPowerSaver backgroundPowerSaver;
private boolean haveDetectedBeaconsSinceBoot = false;
private MainActivity main=null;
private BeaconManager mBeaconManager;
public void onCreate() {
super.onCreate();
TypefaceUtil.overrideFont(getApplicationContext(), "DEFAULT", "fonts/ir.ttf");
TypefaceUtil.overrideFont(getApplicationContext(), "MONOSPACE", "fonts/ir.ttf");
TypefaceUtil.overrideFont(getApplicationContext(), "SERIF", "fonts/ir.ttf");
TypefaceUtil.overrideFont(getApplicationContext(), "SANS_SERIF", "fonts/ir.ttf");
// startService(new Intent(this, TestBestzBeaconService.class));
mBeaconManager = org.altbeacon.beacon.BeaconManager.getInstanceForApplication(this);
// By default the AndroidBeaconLibrary will only find AltBeacons. If you wish to make it
// find a different type of beacon, you must specify the byte layout for that beacon's
// advertisement with a line like below. The example shows how to find a beacon with the
// same byte layout as AltBeacon but with a beaconTypeCode of 0xaabb. To find the proper
// layout expression for other beacon types, do a web search for "setBeaconLayout"
// including the quotes.
//
//beaconManager.getBeaconParsers().clear();
//beaconManager.getBeaconParsers().add(new BeaconParser().
// setBeaconLayout("m:2-3=beac,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25"));
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);
// If you wish to test beacon detection in the Android Emulator, you can use code like this:
// BeaconManager.setBeaconSimulator(new TimedBeaconSimulator() );
// ((TimedBeaconSimulator) BeaconManager.getBeaconSimulator()).createTimedSimulatedBeacons();
}
@Override
public void didEnterRegion(Region arg0) {
// In this example, this class sends a notification to the user whenever a Beacon
// matching a Region (defined above) are first seen.
try {
mBeaconManager.startRangingBeaconsInRegion(arg0);
}
catch (RemoteException e) {
Log.d(TAG, "Can't start ranging"+e.getMessage());
}
Log.d(TAG, "did enter region.");
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, MainActivity.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) {
Log.d(TAG, "I no longer see a beacon.");
}
@Override
public void didDetermineStateForRegion(int state, Region region) {
Log.d(TAG, "I have just switched from seeing/not seeing beacons: " + state);
}
private void sendNotification() {
NotificationCompat.Builder builder =
new NotificationCompat.Builder(this)
.setContentTitle("Beacon Reference Application")
.setContentText("An beacon is nearby.")
.setSmallIcon(R.drawable.ic_launcher);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addNextIntent(new Intent(this, MainActivity.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());
}
public void setMonitoringActivity(MainActivity activity) {
this.main = activity;
}
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
Log.d(TAG, "didRangeBeaconsInRegion");
if (beacons.size() > 0) {
Beacon firstBeacon = beacons.iterator().next();
Log.d(TAG, "Beacon ranged: UUID: "
+ firstBeacon.getId1().toString() + " Major: "
+ firstBeacon.getId2().toString() + " Minor: "
+ firstBeacon.getId3().toString());
// Do something with the result
// Stop ranging
try {
mBeaconManager.stopRangingBeaconsInRegion(region);
} catch (RemoteException e) {
e.printStackTrace();
}
}
}
// @Override
public void onBeaconServiceConnect() {
Log.d(TAG, "onBeaconServiceConnect()");
}
}
在上面的课程BootstrapNotifier中工作正常。但RangeNotifier没有。 BootstrapNotifier说附近有一个灯塔，但它没有给我信标列表，所以我不得不使用RangeNotifier，但它不起作用。能帮我找一个解决方案吗？
非常感谢
答案 0 :(得分：1)
确保您设置范围通知程序如下：
（如果你有图书馆版本2.9 +）
beaconManager.addRangeNotifier(this);
（如果你有2.9版之前的库版本）
beaconManager.setRangeNotifier(this);