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initWithProximityUUID

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ios - CLBeaconRegion initWithProximityUUID 返回 nil

在尝试实例化CLBeaconRegion时,我总是得到nil值。我有以下代码:NSUUID*myUUID=[[NSUUIDalloc]initWithUUIDString:@"11111111111111111111111111111111"];CLBeaconRegion*region=[[CLBeaconRegionalloc]initWithProximityUUID:myUUIDidentifier:@"myCompany"];CLLocationManager*locManager=[[CLLocationManageralloc]init];[locManagersetDe