iOS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>

@interface AppDelegate : UIResponder <UIApplicationDelegate,CLLocationManagerDelegate,MKReverseGeocoderDelegate>

@property (strong, nonatomic) UIWindow *window;

@end


//
//  AppDelegate.m
//  location
//
//  Copyright (c) 2013年 TestApp. All rights reserved.
//

#import "AppDelegate.h"


@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    UIButton *button = [UIButton buttonWithType:UIButtonTypeContactAdd];
    button.frame = CGRectMake(0, 100, 100, 30);
    [button setTitle:@"定位" forState:UIControlStateNormal];
    [button addTarget:self action:@selector(test) forControlEvents:UIControlEventTouchUpInside];
    
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 150, 320, 30)];
    label.tag = 101;
    label.text = @"等待定位中....";
    [self.window addSubview:label];
    [label release];
    [self.window addSubview:button];
    return YES;

}

-(void) test {
    
    CLLocationManager *locationManager = [[CLLocationManager alloc] init];
    // 设置定位精度，十米，百米，最好
    [locationManager setDesiredAccuracy:kCLLocationAccuracyNearestTenMeters];
    locationManager.delegate = self;
    
    // 开始时时定位
    [locationManager startUpdatingLocation];
}

// 错误信息
-(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    NSLog(@"error");
}

// 6.0 以上调用这个函数
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
    
    NSLog(@"%d", [locations count]);
    
    CLLocation *newLocation = locations[0];
    CLLocationCoordinate2D oldCoordinate = newLocation.coordinate;
    NSLog(@"旧的经度：%f,旧的纬度：%f",oldCoordinate.longitude,oldCoordinate.latitude);
    
//    CLLocation *newLocation = locations[1];
//    CLLocationCoordinate2D newCoordinate = newLocation.coordinate;
//    NSLog(@"经度：%f,纬度：%f",newCoordinate.longitude,newCoordinate.latitude);
    
    // 计算两个坐标距离
    //    float distance = [newLocation distanceFromLocation:oldLocation];
    //    NSLog(@"%f",distance);
    
    [manager stopUpdatingLocation];
    
    //------------------位置反编码---5.0之后使用-----------------
    CLGeocoder *geocoder = [[CLGeocoder alloc] init];
    [geocoder reverseGeocodeLocation:newLocation
                   completionHandler:^(NSArray *placemarks, NSError *error){
                       
                       for (CLPlacemark *place in placemarks) {
                           UILabel *label = (UILabel *)[self.window viewWithTag: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 *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
    NSLog(@"%@", @"ok");
}


@end