我不知道我的代码在哪里，我正在尝试使用https://altbeacon.github.io/android-beacon-library检测信标对不起，英语不好，我是移动应用程序开发的新手。
AndroidManifiets.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.isleem.hospital">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
<application
android:name=".application.BeaconApplication"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme.NoActionBar">
<activity android:name=".activities.MainActivity"/>
<activity android:name=".activities.BeaconActivity"/>
<activity
android:name=".activities.LoginActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
BeaconActivity.class
package com.isleem.hospital.activities;
import android.app.Activity;
import android.os.Bundle;
import android.os.RemoteException;
import android.util.Log;
import org.altbeacon.beacon.Beacon;
import org.altbeacon.beacon.BeaconConsumer;
import org.altbeacon.beacon.BeaconManager;
import org.altbeacon.beacon.RangeNotifier;
import org.altbeacon.beacon.Region;
import java.util.Collection;
public class BeaconActivity extends Activity implements BeaconConsumer {
protected static final String TAG = "RangingActivity";
private BeaconManager beaconManager = BeaconManager.getInstanceForApplication(this);
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("naji","beaconactivity");
}
@Override
protected void onDestroy() {
super.onDestroy();
}
@Override
protected void onPause() {
super.onPause();
beaconManager.unbind(this);
}
@Override
protected void onResume() {
super.onResume();
beaconManager.bind(this);
}
@Override
public void onBeaconServiceConnect() {
RangeNotifier rangeNotifier = new RangeNotifier() {
@Override
public void didRangeBeaconsInRegion(Collection<Beacon> beacons, Region region) {
if (beacons.size() > 0) {
Log.d(TAG, "didRangeBeaconsInRegion called with beacon count: "+beacons.size());
Beacon firstBeacon = beacons.iterator().next();
Log.d("naji","The first beacon " + firstBeacon.toString() + " is about " + firstBeacon.getDistance() + " meters away.");
} else {
Log.d(TAG, "no avilable beacons");
}
}
};
try {
// Collection<Region> monitoredRegions = beaconManager.getMonitoredRegions();
// Log.d("monitoredRegions",monitoredRegions.toString());
beaconManager.startMonitoringBeaconsInRegion(new Region("myRangingUniqueId",null,null,null));
beaconManager.addRangeNotifier(rangeNotifier);
} catch (RemoteException e) {
e.printStackTrace();
}
}
}
BeaconApplication.class
package com.isleem.hospital.application;
import android.app.Application;
import android.app.Notification;
import android.os.RemoteException;
import android.util.Log;
import com.isleem.hospital.R;
import org.altbeacon.beacon.BeaconManager;
import org.altbeacon.beacon.Region;
import org.altbeacon.beacon.powersave.BackgroundPowerSaver;
import org.altbeacon.beacon.startup.BootstrapNotifier;
import org.altbeacon.beacon.startup.RegionBootstrap;
public class BeaconApplication extends Application implements BootstrapNotifier {
private static final String TAG = "BeaconReferenceApp";
private RegionBootstrap regionBootstrap;
private BackgroundPowerSaver backgroundPowerSaver;
private boolean haveDetectedBeaconsSinceBoot = false;
private String cumulativeLog = "";
BeaconManager beaconManager ;
public void onCreate() {
super.onCreate();
beaconManager = org.altbeacon.beacon.BeaconManager.getInstanceForApplication(this);
beaconManager.setDebug(false);
beaconManager.setEnableScheduledScanJobs(false);
beaconManager.setBackgroundBetweenScanPeriod(0);
beaconManager.setBackgroundScanPeriod(1100);
Notification.Builder builder = new Notification.Builder(this);
builder.setSmallIcon(R.drawable.ic_launcher_background);
builder.setContentTitle("Scanning for Beacons");
beaconManager.enableForegroundServiceScanning(builder.getNotification(),0);
beaconManager.setEnableScheduledScanJobs(false);
beaconManager.setBackgroundBetweenScanPeriod(0);
beaconManager.setBackgroundScanPeriod(1100);
Log.d(TAG, "setting up background monitoring for beacons and power saving");
Region region = new Region("myRangingUniqueId",
null, null, null);
regionBootstrap = new RegionBootstrap(this, region);
backgroundPowerSaver = new BackgroundPowerSaver(this);
// try {
// beaconManager.startRangingBeaconsInRegion(new Region("myRangingUniqueId", null, null, null));
// } catch (RemoteException e) {
// e.printStackTrace();
// }
}
@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.
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, MonitoringActivity.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 the Monitoring Activity is visible, we log info about the beacons we have
// seen on its display
Log.d("beacon","I see a beacon again" );
// 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.
}
}
@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,"Current region state is: " + (state == 1 ? "INSIDE" : "OUTSIDE ("+state+")"));
}
}
并且我使用此代码来启动我的BeaconActivity
Intent intent = new Intent(this, BeaconActivity.class);
startActivity(intent);
要检查的几件事：
您是信标广告吗？尝试使用像BeaconScope这样的现成应用程序，并确保已检测到它。
您是否从用户动态request and obtain location permission？除非您这样做，否则无法检测到信标。
您是否为要使用的信标类型设置了BeaconParser？如果使用AltBeacon，则不需要这样做。但是if using iBeacon you do。
您接到“ didDetermineStateForRegion”的电话吗？是否表明您已经在该区域内？如果是这样，则可能是检测到您的信标，但是库认为它已经在该区域中了（它会在重新启动时记住这一点），因此它再也不会调用didEnterRegion了。
蓝牙打开了吗？手机设置中是否打开了位置信息？如果您检查应用程序权限，是否确认已将位置权限授予您的应用程序？