iOS开发 程序后台上传位置CLLocationManager

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之前开发一款配送员用的APP时，用到了在程序在后台时，可以不断上传位置的功能，今天略微整理了一下，

主要用到系统的CoreLocation

代码：

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>@interface XSDLocationTools : NSObject
+ (XSDLocationTools *)shareInstance;
// 开启定位
- (void)startLocationService;
@end

.m

//
//  XGLocationTool.m
//  XGPayDemo
//
//  Created by 小广 on 16/4/25.
//  Copyright © 2016年 小广. All rights reserved.
//#import "XSDLocationTools.h"
#import <CoreLocation/CoreLocation.h>
//#import "WGS84ToGCJ02.h"
#import "BaiduMapDefine.h"
#import "XSDBaiduMapTools.h"#define LAST_LONG  @"last_longitude"  // 上次上传位置的经度
#define LAST_LATI  @"last_latitude"  // 上次上传位置的纬度@interface XSDLocationTools ()<CLLocationManagerDelegate>
{//dispatch_source_t _timer;CLLocationCoordinate2D _newCoor;
}
// 1.设置位置管理者属性
@property (nonatomic, strong) CLLocationManager *lcManager;
//@property (nonatomic, assign) BOOL isRequest;
@property (nonatomic, strong) NSTimer *uploadTimer;@end@implementation XSDLocationTools+ (XSDLocationTools *)shareInstance {static XSDLocationTools *instance = nil;static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{instance = [[XSDLocationTools alloc] init];[instance p_addNSNotificationObserver];});return instance;
}// 开启定位
- (void)startLocationService {if ([CLLocationManager locationServicesEnabled]) {// 创建位置管理者对象self.lcManager = [[CLLocationManager alloc] init];self.lcManager.delegate = self; // 设置代理// 设置定位距离过滤参数 (当本次定位和上次定位之间的距离大于或等于这个值时，调用代理方法)self.lcManager.distanceFilter = 50;self.lcManager.desiredAccuracy = kCLLocationAccuracyBest; // 设置定位精度(精度越高越耗电)// 2、在Info.plist文件中添加如下配置：//（1）NSLocationAlwaysUsageDescription 授权使应用在前台后台都能使用定位服务//（2）NSLocationWhenInUseUsageDescription 授权使应用只能在前台使用定位服务// 两者也可以都写if ([[UIDevice currentDevice].systemVersion floatValue] >=8.0 ) {// iOS0.0：如果当前的授权状态是使用是授权，那么App退到后台后，将不能获取用户位置，即使勾选后台模式：location[self.lcManager requestAlwaysAuthorization];[self.lcManager requestWhenInUseAuthorization];}// iOS9.0+ 要想继续获取位置，需要使用以下属性进行设置（注意勾选后台模式：location）但会出现蓝条if ([self.lcManager respondsToSelector:@selector(allowsBackgroundLocationUpdates)]) {//self.lcManager.allowsBackgroundLocationUpdates = YES;}[self.lcManager startUpdatingLocation]; // 开始更新位置[self.uploadTimer setFireDate:[NSDate distantPast]]; // 开启定时器}
}/** 获取到新的位置信息时调用*/
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {CLLocation *tempLocation = locations[0];// 将坐标转化为百度坐标 方法来源于百度sdkNSDictionary *temp = BMKConvertBaiduCoorFrom(tempLocation.coordinate, BMK_COORDTYPE_GPS);CLLocationCoordinate2D nowLocation = BMKCoorDictionaryDecode(temp);//if (self.isRequest) return;//self.isRequest = YES;//[self uploadUserLocationHandle:nowLocation];//[self uploadLocationTimer:nowLocation];_newCoor = nowLocation;
}
/** 不能获取位置信息时调用*/
-(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {NSLog(@"获取定位失败");
}/** 定位服务状态改变时调用*/
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{switch (status) {case kCLAuthorizationStatusNotDetermined:{NSLog(@"用户还未决定授权");break;}case kCLAuthorizationStatusRestricted:{NSLog(@"访问受限");break;}case kCLAuthorizationStatusDenied:{// 类方法，判断是否开启定位服务if ([CLLocationManager locationServicesEnabled]) {NSLog(@"定位服务开启，被拒绝");} else {NSLog(@"定位服务关闭，不可用");}break;}case kCLAuthorizationStatusAuthorizedAlways:{NSLog(@"获得前后台授权");break;}case kCLAuthorizationStatusAuthorizedWhenInUse:{NSLog(@"获得前台授权");break;}default:break;}
}// 直接上传用户位置
static NSInteger uploadCount = 1;
- (void)uploadUserLocationHandle:(CLLocationCoordinate2D)coor {NSDictionary *dic = @{@"longitude":@(coor.longitude),@"latitude":@(coor.latitude)};__weak typeof(self)weakSelf = self;[[UserManager shareInstance] uploadUserLocation:dic block:^(BOOL success) {if (!success) {if (uploadCount > 3) return ;uploadCount ++;[weakSelf uploadUserLocationHandle:coor];XSDLog(@"上传位置不ok");return;}// if (uploadCount != 1) uploadCount = 1;XSDLog(@"上传位置ok");}];}// 定时上传位置
- (void)uploadLocationTimer {BOOL canUpload = [self isCanUpload:_newCoor];if (canUpload) {NSDictionary *dic = @{@"longitude":@(_newCoor.longitude),@"latitude":@(_newCoor.latitude)};__weak typeof(self)weakSelf = self;// 和后台服务器进行交互 上传位置[[UserManager shareInstance] uploadUserLocation:dic block:^(BOOL success) {if (success) {XSDLog(@"上传位置ok");return ;}XSDLog(@"上传位置不ok");[weakSelf uploadUserLocationHandle:_newCoor];}];}}// 监听用户登录的通知
- (void)p_addNSNotificationObserver {[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(p_loginNotification) name:kLoginNotification object:nil];
}- (void)p_loginNotification {// 用户登录, 就开始上传位置NSString *latitude = [XSDTools objectForKey:TCPFLocationlatitude];NSString *longitude = [XSDTools objectForKey:TCPFLocationlongitude];if (!latitude || !longitude) return;// 读取本地的经纬度CLLocationCoordinate2D location = CLLocationCoordinate2DMake(latitude.doubleValue, longitude.doubleValue);[self uploadUserLocationHandle:location];
}// 是否达到条件（判断距离 大于一定距离）上传位置
- (BOOL)isCanUpload:(CLLocationCoordinate2D)coor {//  下面代码相当于 NSUserDefaults 存取数据NSString *latitude = [XSDTools objectForKey:LAST_LATI];NSString *longitude = [XSDTools objectForKey:LAST_LONG];if (!latitude || !longitude) {//  下面代码相当于 NSUserDefaults 存取数据[XSDTools setValue:[NSString stringWithFormat:@"%f",coor.latitude] forKey:LAST_LATI];[XSDTools setValue:[NSString stringWithFormat:@"%f",coor.longitude] forKey:LAST_LONG];return YES;}//  下面代码来源于百度sdk 计算两点间的距离 NSNumber *distence = [XSDBaiduMapTools calculateTwoPointLongWithStart:CLLocationCoordinate2DMake(latitude.doubleValue, longitude.doubleValue) end:coor];if (distence.integerValue >= 100) {//  下面代码相当于 NSUserDefaults 存取数据[XSDTools setValue:[NSString stringWithFormat:@"%f",coor.latitude] forKey:LAST_LATI];[XSDTools setValue:[NSString stringWithFormat:@"%f",coor.longitude] forKey:LAST_LONG];return YES;}return NO;
}// 懒加载
- (NSTimer *)uploadTimer {if (!_uploadTimer) {_uploadTimer = [NSTimer scheduledTimerWithTimeInterval:10.0 target:self selector:@selector(uploadLocationTimer) userInfo:nil repeats:YES];}return _uploadTimer;
}@end

里面用到了一些自定义的类，不过不影响，各位可以根据需求修改，挺简单的；

在AppDelegate的- (BOOL)application:(UIApplication *)application willFinishLaunchingWithOptions:(NSDictionary *)launchOptions 方法里

直接调用即可：[[XSDLocationTools shareInstance] startLocationService];

还有，是必须在如图所示，勾选location updates；

图：

最后，审核的时候，一定要说明清楚，为啥要用这个后台上传位置功能；这个审核被拒概率很大，也没有好的解决方法；

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