android - 我可以在我的应用未运行时收听 Eddystone 信标吗？

Question

与 Google's new Eddystone standard他们将在 Google Play 服务中提供对安卓的支持 Nearby Api .我们是否可以注册 eddystone 信标并让我们的应用程序接收 Intent ，即使应用程序未运行？

Answer 1

是的，使用 Android Beacon Library 可以做到这一点, 完全支持 Eddystone .

应用程序的后台启动机制在 Eddystone 上的工作方式与它在库支持的其他类型的信标上的工作方式相同。您在自定义 Application 类中使用 RegionBootstrap 对象。您可以阅读有关其工作原理的详细信息 here .

与 Eddystone 的唯一区别是您必须设置一个 BeaconParser 来解码 Eddystone-UID 帧，然后设置一个与您的 Eddystone 相匹配的 Region命名空间 ID:

public class MyApplicationName extends Application implements BootstrapNotifier {
    private static final String TAG = ".MyApplicationName";
    private RegionBootstrap regionBootstrap;

    @Override
    public void onCreate() {
        super.onCreate();
        Log.d(TAG, "App started up");
        BeaconManager beaconManager = BeaconManager.getInstanceForApplication(this);
        // Detect the main identifier (UID) frame:
        beaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("s:0-1=feaa,m:2-2=00,p:3-3:-41,i:4-13,i:14-19"));

        // wake up the app when a beacon matching myEddystoneNamespaceId is seen 
        myEddystoneNamespaceId = Identifier.parse("0x2f234454f4911ba9ffa6");
        Region region = new Region("com.example.myapp.boostrapRegion", myEddystoneNamespaceId, null, null);
        regionBootstrap = new RegionBootstrap(this, region);
    }

    @Override
    public void didDetermineStateForRegion(int arg0, Region arg1) {
        // Don't care
    }

    @Override
    public void didEnterRegion(Region arg0) {
        Log.d(TAG, "Got a didEnterRegion call");
        // This call to disable will make it so the activity below only gets launched the first time a beacon is seen (until the next time the app is launched)
        // if you want the Activity to launch every single time beacons come into view, remove this call.  
        regionBootstrap.disable();
        Intent intent = new Intent(this, MainActivity.class);
        // IMPORTANT: in the AndroidManifest.xml definition of this activity, you must set android:launchMode="singleInstance" or you will get two instances
        // created when a user launches the activity manually and it gets launched from here.
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        this.startActivity(intent);
    }

    @Override
    public void didExitRegion(Region arg0) {
       // Don't care
    }        
}