标签：div ati services tor war int near plain sel
iOS 后台持续定位详解(支持ISO9.0以上)
#import <CoreLocation/CoreLocation.h>并实现CLLocationManagerDelegate 代理，.h文件完整代码如下：
- #import <UIKit/UIKit.h>
- #import <CoreLocation/CoreLocation.h>
-
- @interface ViewController : UIViewController<CLLocationManagerDelegate>
-
- @end
2.info.list文件:
右键，Add Row,添加的Key为NSLocationAlwaysUsageDescription，其它值默认，示例如下：
3.添加后台定位权限
4.ViewController.m 文件：
(1)定义一个私有CLLocationManager对象
(2)初始化并设置参数（initLocation方法），其中
locationManager.desiredAccuracy设置定位精度，有六个值可选，精度依次递减
kCLLocationAccuracyBestForNavigation
kCLLocationAccuracyBest
kCLLocationAccuracyNearestTenMeters
kCLLocationAccuracyHundredMeters
kCLLocationAccuracyKilometer
kCLLocationAccuracyThreeKilometers
locationManager.pausesLocationUpdatesAutomatically 设置是否允许系统自动暂停定位，这里要设置为NO，刚开始我没有设置，后台定位持续20分钟左右就停止了！
(3)实现CLLocationManagerDelegate的代理方法，此方法在每次定位成功后调用：
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray*)locations;
*也可以通过实现以下方法：
- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
(4)实现CLLocationManagerDelegate的代理方法，此方法在定位出错后调用：
-(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
.m文件完整代码如下：
- #import "ViewController.h"
-
- @interface ViewController (){
- CLLocationManager *locationManager;
- CLLocation *newLocation;
- CLLocationCoordinate2D coordinate;
- }
-
- @end
-
- @implementation ViewController
-
- - (void)viewDidLoad {
- [super viewDidLoad];
- [self initLocation];
- }
-
- #pragma mark 初始化定位
- -(void)initLocation {
- locationManager=[[CLLocationManager alloc] init];
- locationManager.delegate = self;
- locationManager.desiredAccuracy = kCLLocationAccuracyBest;
- if([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0){
- [locationManager requestAlwaysAuthorization];
- }
-
// 9.0以后这个必须要加不加是不能实现后台持续定位的的
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9.0) {
locationManager.allowsBackgroundLocationUpdates = YES;
}
- if(![CLLocationManager locationServicesEnabled]){
- NSLog(@"请开启定位:设置 > 隐私 > 位置 > 定位服务");
- }
- locationManager.pausesLocationUpdatesAutomatically = NO;
- [locationManager startUpdatingLocation];
-
- }
-
- #pragma mark 定位成功
- -(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
- newLocation = [locations lastObject];
- double lat = newLocation.coordinate.latitude;
- double lon = newLocation.coordinate.longitude;
- NSLog(@"lat:%f,lon:%f",lat,lon);
- }
-
- #pragma mark 定位失败
- -(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{
- NSLog(@"error:%@",error);
- }
-
-
- - (void)didReceiveMemoryWarning {
- [super didReceiveMemoryWarning];
-
- }
-
- @end
iOS 后台持续定位详解(支持ISO9.0以上)
标签：div ati services tor war int near plain sel
原文地址：http://www.cnblogs.com/YangFuShun/p/7976816.html
