iOS开发中地图（MapKit）的使用

iOS开发中地图（MapKit）的使用

首先要引入MapKit.framework的框架

将#import <MapKit/MapKit.h>的库引进来

但是运行结果可以出现地图但是一直出现这样的错误该怎么解决

Apr  7 18:26:27 Amorming.local dingwei[600] <Error>: CGBitmapContextCreate: unsupported parameter combination: 5 integer bits/component; 16 bits/pixel; 3-component color space; kCGImageAlphaNoneSkipLast; 512 bytes/row.

2014-04-07 18:26:27.843 dingwei[600:7b03] vImage decode failed, falling back to CG path.

以下是代码

GPSViewController.h文件中

#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>
#import <MapKit/MapKit.h>
@interface GPSViewController : UIViewController<CLLocationManagerDelegate,MKMapViewDelegate>

@property(nonatomic,retain) CLLocationManager* locationmanager;
@property(nonatomic,retain) CLGeocoder* geocoder;
@end

GPSViewController.m文件中

#import "GPSViewController.h"

@interface GPSViewController ()

@end

@implementation GPSViewController

@synthesize locationmanager,geocoder;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view.
    //初始化地图视图
    MKMapView* mapview = [[MKMapView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];
    //地图的代理方法
    mapview.delegate = self;
    //是否显示当前的位置
    mapview.showsUserLocation = YES;
    //地图的类型， iOS开发中自带的地图
    //使用第三方的地图可以查找周边环境的餐馆，学校之类的
    /*
     MKMapTypeStandard 标准地图
     MKMapTypeSatellite 卫星地图
     MKMapTypeHybrid 混合地图
     */
    mapview.mapType = MKMapTypeStandard;
    
    //河南南阳的经纬度，初始化的坐标
    CLLocationCoordinate2D coor2d = {33.00,112.52};
    //CLLocationCoordinate2D coor2d = {37.7,112.4};
    //显示范围，数值越大，范围就越大
    MKCoordinateSpan span = {5,5};
    MKCoordinateRegion region = {coor2d,span};
    //是否允许缩放，一般都会让缩放的
    //mapview.zoomEnabled = NO;
    //mapview.scrollEnabled = NO;
    //地图初始化时显示的区域
    [mapview setRegion:region];
    [self.view addSubview:mapview];
    locationmanager = [[CLLocationManager alloc]init];
    
    //设置精度
    /*
     kCLLocationAccuracyBest
     kCLLocationAccuracyNearestTenMeters
     kCLLocationAccuracyHundredMeters
     kCLLocationAccuracyHundredMeters
     kCLLocationAccuracyKilometer
     kCLLocationAccuracyThreeKilometers
     */
    //设置定位的精度
    [locationmanager setDesiredAccuracy:kCLLocationAccuracyBest];
    //实现协议
    locationmanager.delegate = self;
    NSLog(@"开始定位");
    //开始定位
    [locationmanager startUpdatingLocation];
   
}

#pragma mark locationManager delegate

//实现定位 6.0 过期的做法
- (void)locationManager:(CLLocationManager *)manager
	didUpdateToLocation:(CLLocation *)newLocation
		   fromLocation:(CLLocation *)oldLocation
{
    NSLog(@"hello");
    //打印出精度和纬度
    CLLocationCoordinate2D coordinate = newLocation.coordinate;
    NSLog(@"输出当前的精度和纬度");
    NSLog(@"精度：%f 纬度：%f",coordinate.latitude,coordinate.longitude);
    //停止定位
    [locationmanager stopUpdatingLocation];
    //计算两个位置的距离
    float distance = [newLocation distanceFromLocation:oldLocation];
    NSLog(@" 距离 %f",distance);
    
    //====位置的反编码 5.0 之后的
    /*
     
     */
    
   geocoder = [[CLGeocoder alloc]init];
    [geocoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray*placemarks,NSError* error)
     {
         //NSLog(@"hffjv");
         for (CLPlacemark* place in placemarks) {
             //NSLog(@"hffjv");
             NSLog(@"name %@",place.name); //位置
             NSLog(@"thoroughfare %@",place.thoroughfare);//街道
             //子街道
             NSLog(@"subthoroughfare %@",place.subAdministrativeArea);
             //市
             NSLog(@"loclitity %@",place.locality);
             //区
             NSLog(@"subLocality %@",place.subLocality);
             //国家
             NSLog(@"country %@",place.country);
             NSLog(@"hffjv");
         }
         
     }];
}

// 6.0 之后新增的位置调用方法

/*-(void)locationManager:(CLLocationManager *)manager
didUpdateLocations:(NSArray *)locations
{
    for (CLLocation* location in locations) {
        NSLog(@"%@",location);
    }
    //停止定位
   // [manager stopUpdatingLocation];
    
}
*/
#pragma mark MKMapViewDelegate的代理方法
//返回标注视图（大头针视图）
/*- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
    
}*/

//更新当前位置调用
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
    
}
//选中注释图标
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
    
}
//地图的显示区域改变了调用
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated
{
    
}
@end

iOS开发中地图（MapKit）的使用,,5-wow.com