当我的应用没有运行时,我可以收听Eddystone信标吗？

Question

借助谷歌新的Eddystone标准,他们将在Google Play服务附近的Api中为Android提供支持.我们可以注册eddystone信标,即使应用程序没有运行,我们的应用程序也会收到意图吗？

Answer 1

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

应用程序的后台启动机制在Eddystone上的工作方式与对库支持的其他类型信标的工作方式相同.您RegionBootstrap在自定义Application类中使用对象.您可以在此处阅读有关此方法的详细信息.

与Eddystone的唯一区别是你必须设置一个BeaconParser解码Eddystone-UID框架,然后设置一个Region匹配你的Eddystone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
    }        
}