ios – 在所有州app中捕获位置

概述我想知道如何在应用程序未运行时捕获位置并保存数据库.已经有几个教程,但没有一个工作.请在评分为重复之前,我请你阅读完整的问题,因为它不可能. 我尝试了以下教程： > Getting Location Updates for iOS 7 and 8 when the App is Killed/Terminated/Suspended > Background Modes Tutorial: Get 我想知道如何在应用程序未运行时捕获位置并保存数据库.已经有几个教程,但没有一个工作.请在评分为重复之前,我请你阅读完整的问题,因为它不可能.

我尝试了以下教程：

> Getting Location Updates for iOS 7 and 8 when the App is Killed/Terminated/Suspended
> Background Modes Tutorial: Getting Started
> to run app continously in the background
> Not exactly what I need,but still I tried

假设我没有捕获位置的实现.我需要每天中午,捕获用户的位置并保存数据库,然后发送到Web服务.
无论应用程序在后台运行还是未运行(中间按钮上的两个环并拖动),都必须进行此捕获位置.

我尝试了在互联网上找到的一些教程,甚至社区建议的一些教程,但仍然没有工作.

>我添加了背景模式 – 位置.
>我允许获取位置requestAlwaysAuthorization.

语言可以是客观c或快速,最重要的是,我学习如何在所有州的应用程序中捕获此位置.

解决方法 好的,我将尽可能简单.启用背景模式和勾选背景,如this

每个步骤都遵循此方法

当应用程序被终止时

AppDelegate.h

#import <UIKit/UIKit.h> #import <CoreLocation/CoreLocation.h> @interface AppDelegate : UIResponder  <UIApplicationDelegate,CLLocationManagerDelegate>  @property (strong,nonatomic) UIWindow *window;  @property (strong,nonatomic) CLLocationManager *locationManager;  @end

AppDelegate.m

#define userDef [NSUserDefaults standardUserDefaults]#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)#import "AppDelegate.h"#import <CoreLocation/CoreLocation.h>#import "AFNetworking.h"#import <GoogleMaps/GoogleMaps.h>@implementation AppDelegate{    BOol fromTerminated;}- (BOol)application:(UIApplication *)application dIDFinishLaunchingWithOptions:(NSDictionary *)launchOptions {   fromTerminated = NO;if ([launchOptions objectForKey:UIApplicationLaunchOptionsLocationKey]) {    fromTerminated = YES;    self.locationManager = [[CLLocationManager alloc]init];    self.locationManager.delegate = self;    self.locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;    self.locationManager.activityType = CLActivityTypeOtherNavigation;    [self.locationManager startUpdatingLocation];}    return YES;}- (voID)applicationDIDBecomeActive:(UIApplication *)application {if(self.locationManager){    [self.locationManager stopMonitoringSignificantLocationChanges];    self.locationManager = nil;    self.locationManager.delegate = nil;}self.locationManager = [[CLLocationManager alloc]init];self.locationManager.delegate = self;self.locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;self.locationManager.activityType = CLActivityTypeOtherNavigation;if(IS_OS_8_OR_LATER) {    [self.locationManager requestAlwaysAuthorization];}[self.locationManager startMonitoringSignificantLocationChanges];}-(voID)locationManager:(CLLocationManager *)manager dIDUpdateLocations:(NSArray *)locations{NSLog(@"locationManager dIDUpdateLocations: %@",locations);if(fromTerminated){    CLLocation * newLocation = [locations lastObject];    CLLocationCoordinate2D theLocation = newLocation.coordinate;    CLLocationAccuracy theAccuracy = newLocation.horizontalAccuracy;    [userDef setobject:[Nsstring stringWithFormat:@"%f",theLocation.longitude] forKey:@"LONGITUDE"];    [userDef setobject:[Nsstring stringWithFormat:@"%f",theLocation.latitude] forKey:@"LATITUDE"];    self.myLocation = theLocation;    self.myLocationAccuracy = theAccuracy;    [self updateLocation];   }}-(voID)updateLocation{// call your webservice for updating}@end

此代码将执行以下 *** 作 – >
后台获取将触发位置更改并将启动应用程序,并且将使用选项字典中的UIApplicationLaunchOptionsLocationKey调用dIDFInishLaunchingWithOptions.如果它发现这意味着应用程序已终止并且已唤醒以进行后台提取.现在你有30秒左右的时间做你的东西.因此,您创建一个位置管理器对象并开始更新,这将触发您的dIDUpdateLocations委托方法,然后您可以调用您的方法来触发服务器或数据库中更改的位置.

在您的普通VC中创建另一个位置管理器对象,就像您在dIDFinishiLaunchingWithOptions方法中创建的那样,并实现委托方法dIDUpdateLocation,这将运行,直到应用程序位于前台或后台.应用程序委托方法Hack将在终止时触发应用程序.

干杯:)

[编辑]

当应用程序处于前台或后台时

#import "VIEwController.h"#import <CoreLocation/CoreLocation.h>@interface VIEwController ()<CLLocationManagerDelegate>@property (nonatomic,strong) CLLocationManager *locationManager;@end@implementation VIEwController{} -(voID)vIEwDIDAppear:(BOol)animated{   if(self.locationManager == nil){    _locationManager = [CLLocationManager new];   }    _locationManager.delegate = self;    _locationManager.distanceFilter = kCLdistanceFilterNone;    _locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters;    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0 &&     [CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizeDWhenInUse) {    [_locationManager requestAlwaysAuthorization];    } else {        [_locationManager startUpdatingLocation];     }  } - (voID) locationManager:(CLLocationManager *)manager dIDUpdateLocations:(NSArray *)locations {    _locationManager = nil;    CLLocation *location = [locations lastObject];    theUser.latitude = [Nsstring stringWithFormat:@"%f",location.coordinate.latitude];    theUser.longitude = [Nsstring stringWithFormat:@"%f",location.coordinate.longitude];   }}- (voID)locationManager:(CLLocationManager*)manager dIDChangeAuthorizationStatus:(CLAuthorizationStatus)status  {switch (status) {    case kCLAuthorizationStatusNotDetermined: {    } break;    case kCLAuthorizationStatusDenIEd: {    } break;    case kCLAuthorizationStatusAuthorizeDWhenInUse:    case kCLAuthorizationStatusAuthorizedAlways: {        [_locationManager startUpdatingLocation]; //Will update location immediately    } break;    default:        break;   }}@end

[编辑]

要检查应用程序是否在终止状态后启动,请执行此更改并点击运行按钮并从故事板中更改设备的位置

执行此更改,然后运行项目(在设备的调试模式下执行此 *** 作)
并通过此更改位置,然后在applicationDIDFinishLaunchingWithOptions中粘贴断点,您将看到断点被命中,这意味着应用程序处于已终止状态,但此位置更改已触发 *** 作系统启动应用程序.

希望可以让你明白

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