[英]iOS didEnterRegion never called
I have some problems with iOS and gefencing... 我在iOS和gefencing方面遇到一些问题...
//
// ViewController.m
//
//
// Created by me on 14.05.13.
// Copyright (c) 2013 me. All rights reserved.
//
#import "ViewController.h"
@interface ViewController ()<CLLocationManagerDelegate>
{
CLLocationManager *locationManager;
CLRegion *testRegion;
}
#define METERS_PER_MILE 1609.344
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[self initlocationManager];
// [self startlocationManager];
}
// init location Manager Object, set delegation, result and accurate
- (void)initlocationManager {
//create location manager object
locationManager = [[CLLocationManager alloc]init];
//this instance send its messages to our AppDelegate
[locationManager setDelegate:self];
//to get all results from the location manager
[locationManager setDistanceFilter:kCLDistanceFilterNone];
//be accurate as possible
[locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
}
- (void)viewWillAppear:(BOOL)animated {
CLLocationCoordinate2D startLocation;
startLocation.latitude = +52.53753000;
startLocation.longitude= +13.35971000;
MKPointAnnotation *newLocation = [[MKPointAnnotation alloc] init];
newLocation.coordinate = startLocation;
newLocation.title = @"great title";
newLocation.subtitle = @"great subtitle";
MKCoordinateRegion startingRegion = MKCoordinateRegionMakeWithDistance(startLocation, 0.5*METERS_PER_MILE, 0.5*METERS_PER_MILE);
testRegion = [[CLRegion alloc] initCircularRegionWithCenter:startLocation radius:500 identifier:@"TEST"];
[_mapView addAnnotation:newLocation];
[_mapView setRegion:startingRegion animated:YES];
[locationManager startMonitoringForRegion:testRegion];
NSLog(@"%@",locationManager.monitoredRegions);
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
NSLog(@"Error : %@",error);
}
- (void)locationManager:(CLLocationManager *)manager monitoringDidFailForRegion:(CLRegion *)region withError:(NSError *)error
{
NSLog(@"Region monitoring failed with error: %@", [error localizedDescription]);
}
- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
NSLog(@"Entered Region - %@", region.identifier);
// [self showRegionAlert:@"Entering Region" forRegion:testRegion.identifier];
}
- (void)locationManager:(CLLocationManager *)manager didStartMonitoringForRegion:(CLRegion *)region {
NSLog(@"Started monitoring %@ region", region.identifier);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
The Terminal give me the following messages: 终端给我以下消息:
2013-05-15 00:24:47.739 [8712:13d03] {(
(identifier TEST) <+52.53753000,+13.35972000> radius 500.00m
)}
2013-05-15 00:24:47.972 [8712:13d03] Started monitoring TEST region
So the region were successfully created and the monitoring start too but the didEnterRegion
function never called. 因此成功创建了区域,并且监视也开始了,但是didEnterRegion
函数从未调用过。
Help would be great! 帮助会很棒!
Edit: 编辑:
at the moment i'm using that gpx file in the iphone simulator and it works fine. 目前,我正在iPhone模拟器中使用该gpx文件,并且工作正常。 only didEnterRegion
never get called. 只有didEnterRegion
永远不会被调用。
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<gpx version="1.1" creator="http://www.geoplaner.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.topografix.com/GPX/1/1" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">
<wpt lat="52.53856" lon="13.3515">
<ele>36.6</ele>
<name>WP04-D</name>
</wpt>
<wpt lat="52.53753" lon="13.35972">
<ele>35.1</ele>
<name>WP05-E</name>
</wpt>
<wpt lat="52.538" lon="13.35788">
<ele>34.1</ele>
<name>WP06-F</name>
</wpt>
<wpt lat="52.53844" lon="13.35633">
<ele>33.6</ele>
<name>WP07-G</name>
</wpt>
<wpt lat="52.53895" lon="13.35392">
<ele>34.7</ele>
<name>WP08-H</name>
</wpt>
<wpt lat="52.53813" lon="13.34925">
<ele>36</ele>
<name>WP09-I</name>
</wpt>
<wpt lat="52.53794" lon="13.34667">
<ele>36.3</ele>
<name>WP10-J</name>
</wpt>
<wpt lat="52.53815" lon="13.34504">
<ele>37.1</ele>
<name>WP11-K</name>
</wpt>
<wpt lat="52.5369" lon="13.35938">
<ele>39.3</ele>
<name>WP12-L</name>
</wpt>
<wpt lat="52.53619" lon="13.35792">
<ele>33.3</ele>
<name>WP13-M</name>
</wpt>
<wpt lat="52.53468" lon="13.35508">
<ele>37.3</ele>
<name>WP14-N</name>
</wpt>
<wpt lat="52.53398" lon="13.35367">
<ele>37</ele>
<name>WP15-O</name>
</wpt>
<wpt lat="52.53781" lon="13.35862">
<ele>33.7</ele>
<name>WP16-P</name>
</wpt>
</gpx>
Your code looks fine. 您的代码看起来不错。 Just ensure that locationManager is retained/strongly-held. 只需确保locationManager被保留/牢固保留即可。
Test your region code using the iPhone simulator. 使用iPhone模拟器测试您的区域代码。 On the 'debug' menu chose a location from the 'location' submenu. 在“调试”菜单上,从“位置”子菜单中选择一个位置。 Changing different locations will exercise your code. 更改不同的位置将执行您的代码。
I just tested your code using the iPhone Simulator and by choosing locations from the submenu. 我只是使用iPhone模拟器并从子菜单中选择位置来测试您的代码。 I entered your code's lat/long numbers for 'custom location'. 我为“自定义位置”输入了您的代码的经纬度数字。 Here was the output: 这是输出:
2013-05-15 07:42:50.885 Location[69277:c07] {(
(identifier home) <+37.26917400,-119.30660700> radius 100.00m
)}
2013-05-15 07:42:50.932 Location[69277:c07] Started monitoring TEST region
2013-05-15 07:44:01.103 Location[69277:c07] Entered Region - TEST
2013-05-15 07:44:59.573 Location[69277:c07] Entered Region - TEST
The 'entered region' output occurred when I chose the 'custom location'. 当我选择“自定义位置”时,发生“输入区域”输出。 The only changes I made from your code were: 1) commented out the 'mapView' lines and 2) declared the ViewController interface as shown below. 我对您的代码所做的唯一更改是:1)注释掉“ mapView”行,2)声明了ViewController接口,如下所示。 You had used a class extension. 您使用了类扩展。
@interface ViewController : UIViewController
<CLLocationManagerDelegate>
{
CLLocationManager *locationManager;
CLRegion *testRegion;
}
@end
Ensure that location services are enabled for your app. 确保为您的应用启用了位置服务。
Make sure you set the delegate. 确保设置了委托。 And you can simulate a move by using the gpx file. 您可以使用gpx文件模拟移动。 Include new file ->Resource->GPX File. 包括新文件->资源-> GPX文件。 Then just edit the file like below: 然后只需编辑文件,如下所示:
<?xml version="1.0"?>
<gpx version="1.1" creator="Xcode">
<wpt lat="LAT1" lon="LONG1">
<name>Location</name>
</wpt>
<wpt lat="LAT2" lon="LONG2">
<name>Location</name>
</wpt>
<wpt lat="LAT3" lon="LONG3">
<name>Location</name>
</wpt>
<wpt lat="LAT4" lon="LONG4">
<name>Location</name>
</wpt>
<wpt lat="LAT5" lon="LONG5">
<name>Location</name>
</wpt>
<wpt lat="LAT6" lon="LONG6">
<name>Location</name>
</wpt>
<wpt lat="LAT7" lon="LONG7">
<name>Location</name>
</wpt>
<wpt lat="LAT8" lon="LONG8">
<name>Location</name>
</wpt>
<wpt lat="LAT9" lon="LONG9">
<name>Cupertino</name>
</wpt>
<wpt lat="LAT10" lon="LONG10">
<name>Location</name>
</wpt>
<wpt lat="LAT11" lon="LONG11">
<name>Location</name>
</wpt>
</gpx>
Try to include the coordinates of inside and outside of region 尝试包括区域内部和外部的坐标
Now you can add this file in iphone simulator Debug->location->Custom location 现在您可以在iPhone模拟器中的Debug-> location-> Custom location中添加此文件
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