如何使用 Android 信标库运行定期检测

Question

在http://www.davidgyoungtech.com/2017/08/07/beacon-detection-with-android-8 我想做测试“新方法：定期检测”

o used program : Android Beacon Library 的参考应用程序 https://github.com/AltBeacon/android-beacon-library-reference

我在 BeaconReferenceApplication.java 中进行定期测试的设置

    ~~ skip ~~
    beaconManager.enableForegroundServiceScanning(builder.build(), 456); // not sure to use or not
    beaconManager.setEnableScheduledScanJobs(true);   // Changed to true for a scheduled job
    beaconManager.setBackgroundBetweenScanPeriod(0);
    beaconManager.setBackgroundScanPeriod(15*60*1000); // 15min

    beaconManager.setForegroundBetweenScanPeriod(0);  
    beaconManager.setForegroundScanPeriod(1100);

    // Android limits the frequency of scheduled jobs to be at most every 15 minutes
    // when an app is on the background. So any setting smaller than 15 minutes will automatically
    // be converted by the operating system to run every 15 minutes


    Region region = new Region("entrance",
            Identifier.parse("BCFABEFC-B1F5-4836-5152-7C5412FFF9C4"),
            Identifier.fromInt(20200), Identifier.fromInt(101)); 
    Region region2 = new Region("lobby",
            Identifier.parse("BCFABEFC-B1F5-4836-5152-7C5412FFF9C4"),
            Identifier.fromInt(20200), Identifier.fromInt(102)); 

    List<Region> regions = new ArrayList<>();
    regions.add(region);
    regions.add(region2);

    regionBootstrap = new RegionBootstrap(this, regions);
    ~~ skip ~~

问题（1）：使用上述设置运行时，我等待超过 25 分钟，调试时没有任何结果。 后台定期 ScheduledScanJobs 怎么办？

Answer 1

这些将有助于安排扫描

  beaconManager.setEnableScheduledScanJobs(true); # with this marked true , you will not be able to run background service

  beaconManager.setBackgroundBetweenScanPeriod(200l);  beaconManager.setBackgroundScanPeriod(1100);

前台扫描周期

   beaconManager.setForegroundScanPeriod(100);beaconManager.setEnableScheduledScanJobs(true);