【问题标题】:Background iBeacon checking interval后台 iBeacon 检查间隔
【发布时间】:2014-08-20 07:22:45
【问题描述】:

我正在试验 Android Beacon 库以使用以下代码在后台监控 iBeacon:

public class IBeaconBootstrap extends Application implements BootstrapNotifier {

private RegionBootstrap regionBootstrap;

@Override
public void onCreate() {

   super.onCreate();

   Log.d("IBeaconBootstrap", "App started up");

   // wake up the app when any beacon is seen (you can specify specific id
   // filers in the parameters below)

   Region region = new Region("MyRegion", null, null, null);
   regionBootstrap = new RegionBootstrap(this, region);

   // This is for Apple compatible iBeacons
   BeaconManager.getInstanceForApplication(this).getBeaconParsers().add(new     BeaconParser().setBeaconLayout("m:0-3=4c000215,i:4-19,i:20-21,i:22-23,p:24-24"));
}

@Override
public void didDetermineStateForRegion(int state, Region region) {

   Log.d("Boostrap didDetermineStateForRegion", "Region " + region.toString());
}

@Override
public void didEnterRegion(Region region) {

   Log.d("Boostrap didEnterRegion", "Got a didEnterRegion call");

   intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
   this.startActivity(intent);
}

@Override
public void didExitRegion(Region region) {

   Log.d("Boostrap didExitRegion", "Got a didExitRegion call");
}
}

当应用启动时,它会每 3/5 分钟检查一次是否存在任何 iBeacon,并将应用置于前台。

其实我需要一个更及时的响应,有什么方法可以静态/动态地改变检查间隔吗?

【问题讨论】:

    标签: android ibeacon android-ibeacon altbeacon


    【解决方案1】:

    这是完全可配置的代码如下:

    // set the duration of the scan to be 1.1 seconds
    beaconManager.setBackgroundScanPeriod(1100l); 
    // set the time between each scan to be 1 minute (60 seconds)
    beaconManager.setBackgroundBetweenScanPeriod(60000l);
    

    执行此操作时要小心,因为更频繁的后台扫描会影响电池寿命。见这里:

    http://altbeacon.github.io/android-beacon-library/battery_manager.html

    【讨论】:

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