iOS中定位当前位置坐标及转换为火星坐标的方法
定位和位置信息获取
定位和反查位置信息要加载两个动态库CoreLocation.framework和MapKit.framework一个获取坐标一个提供反查
//appDelgate.h #import<UIKit/UIKit.h> #import<CoreLocation/CoreLocation.h> #import<MapKit/MapKit.h> @interfaceAppDelegate:UIResponder<UIApplicationDelegate,CLLocationManagerDelegate,MKReverseGeocoderDelegate> @property(strong,nonatomic)UIWindow*window; @end
#import"AppDelegate.h"
@implementationAppDelegate
-(BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{
self.window=[[UIWindowalloc]initWithFrame:[[UIScreenmainScreen]bounds]];
//Overridepointforcustomizationafterapplicationlaunch.
self.window.backgroundColor=[UIColorwhiteColor];
[self.windowmakeKeyAndVisible];
UIButton*button=[UIButtonbuttonWithType:UIButtonTypeContactAdd];
button.frame=CGRectMake(0,100,100,30);
[buttonsetTitle:@"定位"forState:UIControlStateNormal];
[buttonaddTarget:selfaction:@selector(test)forControlEvents:UIControlEventTouchUpInside];
UILabel*label=[[UILabelalloc]initWithFrame:CGRectMake(0,150,320,30)];
label.tag=101;
label.text=@"等待定位中....";
[self.windowaddSubview:label];
[labelrelease];
[self.windowaddSubview:button];
returnYES;
}
-(void)test{
CLLocationManager*locationManager=[[CLLocationManageralloc]init];
//设置定位精度，十米，百米，最好
[locationManagersetDesiredAccuracy:kCLLocationAccuracyNearestTenMeters];
locationManager.delegate=self;
//开始时时定位
[locationManagerstartUpdatingLocation];
}
//错误信息
-(void)locationManager:(CLLocationManager*)managerdidFailWithError:(NSError*)error{
NSLog(@"error");
}
//6.0以上调用这个函数
-(void)locationManager:(CLLocationManager*)managerdidUpdateLocations:(NSArray*)locations{
NSLog(@"%d",[locationscount]);
CLLocation*newLocation=locations[0];
CLLocationCoordinate2DoldCoordinate=newLocation.coordinate;
NSLog(@"旧的经度：%f,旧的纬度：%f",oldCoordinate.longitude,oldCoordinate.latitude);
// CLLocation*newLocation=locations[1];
// CLLocationCoordinate2DnewCoordinate=newLocation.coordinate;
// NSLog(@"经度：%f,纬度：%f",newCoordinate.longitude,newCoordinate.latitude);
//计算两个坐标距离
// floatdistance=[newLocationdistanceFromLocation:oldLocation];
// NSLog(@"%f",distance);
[managerstopUpdatingLocation];
//------------------位置反编码---5.0之后使用-----------------
CLGeocoder*geocoder=[[CLGeocoderalloc]init];
[geocoderreverseGeocodeLocation:newLocation
completionHandler:^(NSArray*placemarks,NSError*error){
for(CLPlacemark*placeinplacemarks){
UILabel*label=(UILabel*)[self.windowviewWithTag:101];
label.text=place.name;
NSLog(@"name,%@",place.name); //位置名
// NSLog(@"thoroughfare,%@",place.thoroughfare); //街道
// NSLog(@"subThoroughfare,%@",place.subThoroughfare);//子街道
// NSLog(@"locality,%@",place.locality); //市
// NSLog(@"subLocality,%@",place.subLocality); //区
// NSLog(@"country,%@",place.country); //国家
}
}];
}
//6.0调用此函数
-(void)locationManager:(CLLocationManager*)managerdidUpdateToLocation:(CLLocation*)newLocationfromLocation:(CLLocation*)oldLocation{
NSLog(@"%@",@"ok");
}
@end
转换为火星坐标
这个写的公共类叫做:GPScombineClass类主要展示GPS位置的定位，GPS坐标的获取，然后从手机坐标转换成火星坐标，继而在需要的情况下，由火星转百度，百度转火星的详细算法；
在GPScombineClass.h中
#import<Foundation/Foundation.h>
#import<CoreLocation/CoreLocation.h>
#import"CSqlite.h"
#import<MapKit/MapKit.h>
@interfaceGPScombineClass:NSObject<MKMapViewDelegate>{
CLLocationManager*locationManager;
CSqlite*m_sqlite;
UILabel*m_locationName;
MKMapView*mainMapView;
@publicCLLocationCoordinate2Dbaidulocation;
CLLocationCoordinate2DdeleeverLocation;
}
-(void)OpenGPSmapView;
//在地图上放上自己的位置--外接接口
-(void)setMyMapPonitByMKMapView:(MKMapView*)MyMap;
@end