如何在单个didRangeBeacons:inRegion回调中接收ibeacons不同区域测距事件. [英] How to received ibeacons different regions ranging event in single didRangeBeacons:inRegion callback.

问题描述

我正在尝试将iOS ibeacons分布在多个区域，并且效果很好.

I'm trying to range iOS ibeacons with multiple regions and it works well.

但是我的问题是，如果我对多个区域region1和region2进行测距，则分别收到两个测距事件调用，即didRangeBeacons:inRegion. (因此，如果我在表视图中显示信标列表，它会闪烁.)

But my problem is, if I range multiple regions region1 and region2, I received two ranging event calls, didRangeBeacons:inRegion separately. (So, if I show the beacons list in tableview, it is flashing.)

我想将范围内具有不同标识符的所有区域都接收到单个didRangeBeacons:inRegion回调中(一个区域没有一个回调.范围内所有区域一个回调).我看到可以通过设置estBeaconManager.returnAllRangedBeaconsAtOnce = YES;来使用Estimote的SDK.

I want to received all regions with different identifier in ranges into single didRangeBeacons:inRegion callback (not one callback for one region. one callback for all regions in range). I saw it can be done with Estimote's SDK by setting estBeaconManager.returnAllRangedBeaconsAtOnce = YES;.

我想实现类似的解决方案，例如estimote sdk对iOS CoreLocation所做的事情.有没有解决方案或示例代码?

I want to implement similar solution like estimote sdk did with iOS CoreLocation. Is there any solutions or sample code for this?

推荐答案

为此，您需要保持CLBeacon对象的NSDictionary，并在每次调用didRangeBeacons方法时使其保持同步.

To do this you will need to keep an NSDictionary of CLBeacon objects and keep it synchronized each time the didRangeBeacons method is called.

重要的是要理解，每次调用didRangeBeacons方法时，都会生成并返回一组新的CLBeacon对象，这些对象不是以前返回的CLBeacons的==.为了解决这个问题，我建议将您的CLBeacon存储在具有唯一ID的NSMutableDictionary中，该ID可用于识别和比较代表相同实际iBeacon的多个CLBeacon实例.这样，您可以轻松地从NSDictionary添加/删除CLBeacons并保持最新状态，并且每次调用didRangeBeacons之后都不会重复.

It is important to understand that you each time the didRangeBeacons method is called, a new set of CLBeacon objects generated and returned that are not == to the previously returned CLBeacons. To handle this I would recommend storing your CLBeacons in an NSMutableDictionary with a unique ID that can be used to identify and compare multiple instances of CLBeacon that represent the same actual iBeacon. This way you can easily add/remove CLBeacons from the NSDictionary and keep it up to date, and with no duplicates after each time the didRangeBeacons is called.

这是操作方法:

首先在您的CLLocationManager的委托中创建字典

First create the dictionary in your CLLocationManager's delegate

@property (nonatomic, strong) NSMutableDictionary *beaconsByUniqueID;

接下来修改您的didRangeBeacons方法，将每组新的CLBeacon对象合并到

Next modify your didRangeBeacons method to merge each new set of CLBeacon objects into

- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region {

    if(!self.beaconsByUniqueID) {
        self.beaconsByUniqueID = [[NSMutableDictionary alloc] init]; // This could also be done in your init
    }

    // Remove all CLBeacon objects for the CLBeaconRegion being returned
    NSMutableArray *uniqueIDsToRemove = [[NSMutableArray alloc] initWithCapacity:[self.beaconsByUniqueID count]];
    for(NSString *beaconUniqueID in self.beaconsByUniqueID) {
        CLBeacon *beacon = [self.beaconsByUniqueID objectForKey:beaconUniqueID];
        if([beacon.proximityUUID isEqual:region.proximityUUID]) {     // Only remove Beacons in the currently returned region

            [uniqueIDsToRemove addObject:beaconUniqueID];
        }
    }
    [self.beaconsByUniqueID removeObjectsForKeys:uniqueIDsToRemove];

    // Add in the new beacon objects
    for(CLBeacon *beacon in beacons) {
        [self.beaconsByUniqueID setObject:beacon forKey:[self uniqueIDForBeacon:beacon]];
    }

    // beaconsByUniqueID now contains the most recent set of iBeacons with no duplicates
    // Reload your tableView here
    // or call a custom callback with beaconsByUniqueID
}

您的uniqueIDForBeacon方法可以返回iBeacon唯一的任何NSString.我建议将UUID，主要和次要值简单地组合到一个字符串中，以为每个iBeacon创建一个唯一值.

Your uniqueIDForBeacon method can return any NSString that will be unique to the iBeacon. I would recommend simply combining the UUID, major, and minor values into one string to create a unique value for each iBeacon.

- (NSString *)uniqueIDForBeacon:(CLBeacon *)beacon {
    return [NSString stringWithFormat:@"%@%@%@", [beacon.proximityUUID UUIDString], beacon.major, beacon.minor];
}

您说过，您想要一个回调来返回所有iBeacons.您可以简单地创建一个自定义MYiBeaconManager对象，该对象实现上述代码，并在didRangeBeacons末尾调用对其委托的自定义调用，以告知委托人iBeacon集已更新.

You said that you want a single callback to do return all iBeacons. You could simply create a custom MYiBeaconManager object that implements the above code and calls a custom call to its delegate at the end of didRangeBeacons to tell the delegate that the iBeacon set was updated.

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