当我尝试运行“xcode”项目时,我遇到了一些问题,并且出现了“运行时”错误。
Assertion failure in -[CLLocationManager startRangingBeaconsInRegion:], /SourceCache/CoreLocationFramework/CoreLocation-1613.35/Framework/CoreLocation/CLLocationManager.m:991
2014-05-11 15:47:15.483 Ziew[1516:60b] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: region != nil'
我正在尝试使用“Estimote SDK”使用proximity application代码示例构建类似的应用程序。原始示例效果很好,当我添加代码时,我没有更改任何内容。这里有一些方法:
- (id)initWithBeacon:(ESTBeacon *)beacon
{
self = [super init];
if (self)
{
self.beacon = beacon;
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor colorWithRed:(141/255.0) green:(198/255.0) blue:(63/255.0) alpha:1]];
// Do any additional setup after loading the view.
//Beacon Manager setup
self.beaconManager = [[ESTBeaconManager alloc] init];
self.beaconManager.delegate = self;
self.beaconRegion = [[ESTBeaconRegion alloc] initWithProximityUUID:self.beacon.proximityUUID
major:[self.beacon.major unsignedIntValue]
minor:[self.beacon.minor unsignedIntValue]
identifier:@"RegionIdentifier"];
[self.beaconManager startRangingBeaconsInRegion:self.beaconRegion];
}
#pragma mark - ESTBeaconManager delegate
- (void)beaconManager:(ESTBeaconManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(ESTBeaconRegion *)region
{
if (beacons.count > 0)
{
ESTBeacon *firstBeacon = [beacons firstObject];
[self textForProximity:firstBeacon.proximity];
}
NSLog(@"No beacons within region");
}
#pragma mark -
- (void)textForProximity:(CLProximity)proximity
{
switch (proximity) {
case CLProximityFar:
NSLog(@"Far");
break;
case CLProximityNear:
NSLog(@"Near");
break;
case CLProximityImmediate:
NSLog(@"Immediate");
break;
default:
NSLog(@"Unknown");
break;
}
}
- (void)viewDidDisappear:(BOOL)animated
{
[self.beaconManager stopRangingBeaconsInRegion:self.beaconRegion];
[super viewDidDisappear:animated];
}
我错过了什么?
解
感谢所有回复的人。使用Estimote SDK,您可以使用信标对应的主要和次要ID分配常量UUID,以获取调用的startRangingBeaconsInRegion方法。
self.beaconRegion = [[ESTBeaconRegion alloc] initWithProximityUUID:ESTIMOTE_PROXIMITY_UUID
major:your_major_id
minor:your_minor_id
identifier:@"RegionIdentifier"];
答案 0 :(得分:2)
据我所知,当你告诉它开始测距信标时,你的灯塔区域是零。既然您为属性分配了一个区域的初始化实例,那么您的属性声明是否可以列为弱而不是强?
答案 1 :(得分:1)
您可能已从其演示中复制了initWithBeacon构造函数,并且在实例化视图控制器时未调用此构造函数(如来自xib或storyboard)。
因为self.beacon是nil,所以构造的ESTRegion对象被分配了nil params,这会导致崩溃。
你需要:
或