IOS (map) cllocation

. h file #pragma mark---geocoding-(ibaction) GeoCode: (UIButton *) sender; @property (strong, nonatomic) iboutlet Uitextfield * Addresstextfield; @property (Strong, nonatomic) Iboutlet UILabel *longitudelabel; @property (Strong, nonatomic) Iboutlet UILabel *latitudelabel; @property (Strong, nonatomic) Iboutlet UILabel *detailaddress; #pragma mark----Anti-geocoding-(ibaction) Reversegetcode: (UIButton *) sender, @property (Strong, nonatomic) Iboutlet Uitextfield *longitudetextfield; @property ( Strong, Nonatomic) Iboutlet Uitextfield *latitudetextfiled; @property (Strong, nonatomic) Iboutlet UILabel *addressLabel ;

. m file

@interface Viewcontroller () <CLLocationManagerDelegate> @property (nonatomic,strong) Cllocationmanager * locmanager;//Positioning Management Object @property (Nonatomic,strong) Clgeocoder * geocoder;//Encoder Object @end

-(void) viewdidload {[Super viewdidload];  Determine if the iOS system version is greater than 8.0 to obtain authorization if ([[Uidevice currentdevice].systemversion doublevalue]>=8.0) {//Get authorization [     Self.locmanager Requestwheninuseauthorization];        }//Every few meters to locate once//self.locmanager.distancefilter=10;        Positioning accuracy (the more accurate the more power consumption)//self.locmanager.desiredaccuracy=kcllocationaccuracyhundredmeters; Start positioning [Self.locmanager startupdatinglocation];} 
 
 
 

#pragma mark----Implement Locationmanager's Proxy method #pragma mark----call (particularly high frequency) if you navigate to the location of the user//locations: Loaded with Calocation object-(void) Locationmanager: (Cllocationmanager *) Manager didupdatelocations: (Nsarray *) locations{        //1. Remove Position Object    Cllocation * Loc =[locations firstobject];        2. Remove the latitude    /longitude    double longitude=loc.coordinate.longitude;        Latitude    double latitude=loc.coordinate.latitude;        Print latitude    and longitude NSLog (@ "Longitude:%2.f Latitude:%2.f", longitude,latitude);        3. Print latitude    and longitude NSLog (@ "Start positioning!----%@", locations);    Stop positioning (power-saving measures: Stop Location Services immediately if you do not want to locate the service    [Self.locmanager stopupdatinglocation];} Calculates the straight line distance between 2 latitude and longitude-(void) countlinedistance{        cllocation * Cation1 =[[cllocation alloc]initwithlatitude:40 LONGITUDE:116];         Cllocation * Cation2 =[[cllocation alloc]initwithlatitude:41 longitude:116];        Cllocationdistance distance= [Cation1 distancefromlocation:cation2];        NSLog (@ "%f", distance);    }

Also add nslocationwheninuseusagedescription to the info file

Lazy Loading-(Cllocationmanager *) locmanager{        if (![ Cllocationmanager locationservicesenabled]) {        return nil;    }        Determine if location management exists if    (!_locmanager) {        //Create Location Manager        _locmanager =[[cllocationmanager Alloc]init];                _locmanager.delegate=self;    }        return _locmanager;    } -(Clgeocoder *) geocoder{        if (!_geocoder) {                _geocoder =[[clgeocoder alloc]init];    }    return _geocoder;}

Geocoding (latitude and longitude based on address)

-(Ibaction) GeoCode: (UIButton *) Sender {if ([Self.addressTextField.text length] ==0) {return;        } NSLog (@ "%@", Self.addressTextField.text); geocoding [Self.geocoder geocodeAddressString:self.addressTextField.text completionhandler:^ (Nsarray *placemarks, Nser Ror *error) {if (error) {//error (address disorderly input) [email protected] "The place name you entered has an error!!                   ";                              }else{Clplacemark * placemark =[placemarks firstobject];               Self.detailaddress.text=placemark.name;                                /* Name: Locality: City County: Country postancode: Zip code */self.longitudelabel.text=[nsstring stringwithformat:@ "%.2f", PLACEMARK.L               Ocation.coordinate.longitude];             Self.latitudelabel.text=[nsstring stringwithformat:@ "%2f", Placemark.location.coordinate.latitude];             }                  }]; }

Effect

Geo-anti-coding (location of addresses based on latitude and longitude)

Anti-geocoding-(Ibaction) Reversegetcode: (UIButton *) Sender {        NSString * longitude =self.longitudetextfield.text;    NSString * Latitude =self.latitudetextfiled.text;        if (longitude.length==0 | | latitude.length==0) {                return;    }        Cllocation * location =[[cllocation alloc]initwithlatitude:[latitude Doublevalue] longitude:[longitude DoubleValue]];        [Self.geocoder reversegeocodelocation:location completionhandler:^ (Nsarray *placemarks, NSError *error) {               if (error) {                         [email protected] "you entered the latitude and longitude error!";        } else{                       Clplacemark * pm=[placemarks Firstobject];                        self.addresslabel.text=pm.name;        }            }];}

Effects such as

IOS (map) cllocation