我正在尝试在更新时将用户位置发送到服务器（理想情况下每100米），但是现在我只是想让它运行起来。我对iOS 7很新，所以这可能不像我看起来那么难......但这里是我的代码
-(void)sendUserLocationToServer
{
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
self.locationManager.distanceFilter = 10; //kCLDistanceFilterNone; // whenever we move
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; // The best you can get
[self.locationManager startUpdatingLocation];
NSLog(@"HELLO. Latitude: %f longitude: %f", self.locationManager.location.coordinate.latitude, self.locationManager.location.coordinate.longitude);
}
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
NSLog(@"loactions %@", locations);
}
基本上，我有一个方法调用sendUserLocationToServer来启动位置管理器，并且计划是为了它以某种方式下降到didUpdateLocations方法，现在我只想注销位置......但那就是我的位置我到达那里后会打电话给服务员。
在日志中，我进入了“HELLO”日志，但它永远不会涉及到didUpdateLocations方法。
我错过了什么？
由于
编辑：不确定它是否有所作为，但我在我的app委托中调用了进程pushPushNotificationData方法
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)responseInfo{
NSLog(@"Received Notification: %@", responseInfo);
//Import the class header where the function is in this file (see above)
//Set class to variable
//Init the varibale / class
//Add the method you want to make public in the headerfile of responderViewController
XYZResponderViewController *responderController;
responderController = [[XYZResponderViewController alloc] init];
[responderController processPushNotificationData:responseInfo];
}
答案 0 :(得分：2)
您需要为您的位置管理员设置委托（查看文档的here）。
将此添加到您的经理的初始化：
[locationManager setDelegate:self];
当然，“self”必须符合CLLocationManagerDelegate协议（查看here以获取Apple的文档。
答案 1 :(得分：0)
我想有一个需要在某处设置的委托。 locationManager：didUpdateLocations：看起来像一个典型的委托方法。
答案 2 :(得分：0)
首先添加代表
@interface ViewController : UIViewController <CLLocationManagerDelegate>
然后在.m控制器中初始化它时，设置委托：
locationManager = [[CLLocationManager alloc] init];
[locationManager setDelegate:self];
//[locationManager setDistanceFilter:10]; //kCLDistanceFilterNone; // whenever we move
[locationManager setDistanceFilter:kCLDistanceFilterNone]; // whenever we move
[locationManager setDesiredAccuracy:kCLLocationAccuracyBest]; // The best you can get
[locationManager startUpdatingLocation];
而且我不知道这是否也是你所需要的，但这就是我正在使用的......
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
float currentLocationLati = [[locations objectAtIndex:0] coordinate].latitude;
float currentLocationLong = [[locations objectAtIndex:0] coordinate].longitude;
NSLog(@"hAccuracy: %.1f, vAccuracy: %.1f", [[locations objectAtIndex:0] horizontalAccuracy], [[locations objectAtIndex:0] verticalAccuracy]);
NSLog(@"Locations %@", [locations objectAtIndex:0]);
}
答案 3 :(得分：0)
#import "LocationTracker.h"
#define LATITUDE @"latitude"
#define LONGITUDE @"longitude"
#define ACCURACY @"theAccuracy"
#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
@implementation LocationTracker
AppDelegate *objApp;
+ (CLLocationManager *)sharedLocationManager {
static CLLocationManager *_locationManager;
@synchronized(self) {
if (_locationManager == nil) {
_locationManager = [[CLLocationManager alloc] init];
_locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
}
}
return _locationManager;
}
- (id)init {
if (self==[super init]) {
//Get the share model and also initialize myLocationArray
self.shareModel = [LocationShareModel sharedModel];
self.shareModel.myLocationArray = [[NSMutableArray alloc]init];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationEnterBackground) name:UIApplicationDidEnterBackgroundNotification object:nil];
objApp = (AppDelegate *)[[UIApplication sharedApplication] delegate];
}
return self;
}
-(void)applicationEnterBackground{
CLLocationManager *locationManager = [LocationTracker sharedLocationManager];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
locationManager.distanceFilter = kCLDistanceFilterNone;
if(IS_OS_8_OR_LATER) {
[locationManager requestAlwaysAuthorization];
}
[locationManager startUpdatingLocation];
//Use the BackgroundTaskManager to manage all the background Task
self.shareModel.bgTask = [BackgroundTaskManager sharedBackgroundTaskManager];
[self.shareModel.bgTask beginNewBackgroundTask];
}
- (void) restartLocationUpdates
{
NSLog(@"restartLocationUpdates");
if (self.shareModel.timer) {
[self.shareModel.timer invalidate];
self.shareModel.timer = nil;
}
CLLocationManager *locationManager = [LocationTracker sharedLocationManager];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
locationManager.distanceFilter = kCLDistanceFilterNone;
if(IS_OS_8_OR_LATER) {
[locationManager requestAlwaysAuthorization];
}
[locationManager startUpdatingLocation];
}
- (void)startLocationTracking {
NSLog(@"startLocationTracking");
if ([CLLocationManager locationServicesEnabled] == NO) {
NSLog(@"locationServicesEnabled false");
UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[servicesDisabledAlert show];
} else {
CLAuthorizationStatus authorizationStatus= [CLLocationManager authorizationStatus];
if(authorizationStatus == kCLAuthorizationStatusDenied || authorizationStatus == kCLAuthorizationStatusRestricted){
NSLog(@"authorizationStatus failed");
} else {
NSLog(@"authorizationStatus authorized");
CLLocationManager *locationManager = [LocationTracker sharedLocationManager];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
locationManager.distanceFilter = kCLDistanceFilterNone;
if(IS_OS_8_OR_LATER) {
[locationManager requestAlwaysAuthorization];
}
[locationManager startUpdatingLocation];
}
}
}
- (void)stopLocationTracking {
NSLog(@"stopLocationTracking");
if (self.shareModel.timer) {
[self.shareModel.timer invalidate];
self.shareModel.timer = nil;
}
CLLocationManager *locationManager = [LocationTracker sharedLocationManager];
[locationManager stopUpdatingLocation];
}
#pragma mark - CLLocationManagerDelegate Methods
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
NSLog(@"locationManager didUpdateLocations");
for(int i=0;i<locations.count;i++){
CLLocation * newLocation = [locations objectAtIndex:i];
CLLocationCoordinate2D theLocation = newLocation.coordinate;
CLLocationAccuracy theAccuracy = newLocation.horizontalAccuracy;
NSTimeInterval locationAge = -[newLocation.timestamp timeIntervalSinceNow];
if (locationAge > 30.0)
{
continue;
}
//Select only valid location and also location with good accuracy
if(newLocation!=nil&&theAccuracy>0
&&theAccuracy<2000
&&(!(theLocation.latitude==0.0&&theLocation.longitude==0.0))){
self.myLastLocation = theLocation;
self.myLastLocationAccuracy= theAccuracy;
NSMutableDictionary * dict = [[NSMutableDictionary alloc]init];
[dict setObject:[NSNumber numberWithFloat:theLocation.latitude] forKey:@"latitude"];
[dict setObject:[NSNumber numberWithFloat:theLocation.longitude] forKey:@"longitude"];
[dict setObject:[NSNumber numberWithFloat:theAccuracy] forKey:@"theAccuracy"];
//Add the vallid location with good accuracy into an array
//Every 1 minute, I will select the best location based on accuracy and send to server
[self.shareModel.myLocationArray addObject:dict];
}
}
//If the timer still valid, return it (Will not run the code below)
if (self.shareModel.timer) {
return;
}
self.shareModel.bgTask = [BackgroundTaskManager sharedBackgroundTaskManager];
[self.shareModel.bgTask beginNewBackgroundTask];
//Restart the locationMaanger after 1 minute
self.shareModel.timer = [NSTimer scheduledTimerWithTimeInterval:30 target:self
selector:@selector(restartLocationUpdates)
userInfo:nil
repeats:NO];
//Will only stop the locationManager after 10 seconds, so that we can get some accurate locations
//The location manager will only operate for 10 seconds to save battery
if (self.shareModel.delay10Seconds) {
[self.shareModel.delay10Seconds invalidate];
self.shareModel.delay10Seconds = nil;
}
self.shareModel.delay10Seconds = [NSTimer scheduledTimerWithTimeInterval:10 target:self
selector:@selector(stopLocationDelayBy10Seconds)
userInfo:nil
repeats:NO];
}
//Stop the locationManager
-(void)stopLocationDelayBy10Seconds{
CLLocationManager *locationManager = [LocationTracker sharedLocationManager];
[locationManager stopUpdatingLocation];
NSLog(@"locationManager stop Updating after 10 seconds");
}
- (void)locationManager: (CLLocationManager *)manager didFailWithError: (NSError *)error
{
// NSLog(@"locationManager error:%@",error);
switch([error code])
{
case kCLErrorNetwork: // general, network-related error
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Network Error" message:@"Please check your network connection." delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
[alert show];
}
break;
case kCLErrorDenied:{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enable Location Service" message:@"You have to enable the Location Service to use this App. To enable, please go to Settings->Privacy->Location Services" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
[alert show];
}
break;
default:
{
}
break;
}
}
//Send the location to Server
- (void)updateLocationToServer {
NSLog(@"updateLocationToServer");
// Find the best location from the array based on accuracy
NSMutableDictionary * myBestLocation = [[NSMutableDictionary alloc]init];
for(int i=0;i<self.shareModel.myLocationArray.count;i++){
NSMutableDictionary * currentLocation = [self.shareModel.myLocationArray objectAtIndex:i];
if(i==0)
myBestLocation = currentLocation;
else{
if([[currentLocation objectForKey:ACCURACY]floatValue]<=[[myBestLocation objectForKey:ACCURACY]floatValue]){
myBestLocation = currentLocation;
}
}
}
NSLog(@"My Best location:%@",myBestLocation);
//If the array is 0, get the last location
//Sometimes due to network issue or unknown reason, you could not get the location during that period, the best you can do is sending the last known location to the server
if(self.shareModel.myLocationArray.count==0)
{
NSLog(@"Unable to get location, use the last known location");
self.myLocation=self.myLastLocation;
self.myLocationAccuracy=self.myLastLocationAccuracy;
}else{
CLLocationCoordinate2D theBestLocation;
theBestLocation.latitude =[[myBestLocation objectForKey:LATITUDE]floatValue];
theBestLocation.longitude =[[myBestLocation objectForKey:LONGITUDE]floatValue];
self.myLocation=theBestLocation;
self.myLocationAccuracy =[[myBestLocation objectForKey:ACCURACY]floatValue];
}
NSLog(@"Send to Server: Latitude(%f) Longitude(%f) Accuracy(%f)",self.myLocation.latitude, self.myLocation.longitude,self.myLocationAccuracy);
//TODO: Your code to send the self.myLocation and self.myLocationAccuracy to your server
//After sending the location to the server successful, remember to clear the current array with the following code. It is to make sure that you clear up old location in the array and add the new locations from locationManager
[self.shareModel.myLocationArray removeAllObjects];
self.shareModel.myLocationArray = nil;
self.shareModel.myLocationArray = [[NSMutableArray alloc]init];
}
@end