OC开发_Storyboard——MapKit
一、Core Location
1、基本对象
@propertys: coordinate, altitude, horizontal/verticalAccuracy, timestamp, speed, course
@property (readonly) CLLocationCoordinate2D coordinate;
typedef {
CLLocationDegrees latitude; // double型 纬度
CLLocationDegrees longitude; // double 型 经度
} CLLocationCoordinate2D;
@property (readonly) CLLocationDistance altitude; //高度 (单位:米)
2、精度
kCLLocationAccuracyBestForNavigation //精度最好,但同时最耗电,以下类推
kCLLocationAccuracyBest
kCLLocationAccuracyNearestTenMeters
kCLLocationAccuracyHundredMeters
kCLLocationAccuracyKilometer
kCLLocationAccuracyThreeKilometers
3、如何获得Core Location?[通过CLLocationManager]
通常的步骤是:(1 通过硬件获得支持 (2 创建一个CLLocationManager实例并设置委托 (3 配置如何更新、精度 (4 开启这个Manager运行
4、在最开始创建Location Manager的时候,需要检查下面这些项:
+ (CLAuthorizationStatus)authorizationStatus; //* 检查应用的授权状态 *应用在第一次启动时,会自动请求授权,应用应当明确被授权使用位置服务,并且位置服务当前出于运行状态,应用才能使用位置服务。
+ (BOOL)locationServicesEnabled; // * 判断用户是否启动位置服务 * 在启动位置更新操作之前,用户应当检查该方法的返回值来查看设备的位置服务是否启动。如果位置服务没有启动,而用户又启动了位置更新操作,那么Core Location 框架将会弹出一个让用户确认是否启动位置服务的对话框。
+ (BOOL)significantLocationChangeMonitoringAvailable; //* 表明设备能否报告基于significant location changges的更新 *(significant location change监控,只是基于设备所链接的蜂窝塔的位置改变诊断,在精度要求不高的情况下,可以节省很多电量。)
+(BOOL)isMonitoringAvailableForClass:(Class)regionClass;// 对某些设备 beacon的监听
+ (BOOL)isRangingAvailable;//* 返回蓝牙信号范围服务是否可用 *。这是iOS 7新增的方法
5、委托
(1 属性
@property CLLocationAccuracy desiredAccuracy; // 精度
@property CLLocationDistance distanceFilter; // 距离过滤器:超过多远的距离才开始重新定位
(2 定位
- (void)startUpdatingLocation; //开启定位
- (void)stopUpdatingLocation; //关闭定位
- (void)startMonitoringSignificantLocationChanges; //可以在后台或者前台都能监视到用户位置的移动,即使程序没有启动
- (void)stopMonitoringSignificantLocationChanges; //
(3 当你的程序没有运行或者后台被启动的时候,这个方法会被发送
application:didFinishLaunchingWithOptions: UIApplicationLaunchOptionsLocationKey
(4 圆形范围[基于对区域的监控]
- (void)startMonitoringForRegion:(CLRegion *)region; // CLCircularRegion/CLBeaconRegion
- (void)stopMonitoringForRegion:(CLRegion *)region;
//进入范围的时候,会发送广播通知你[这是iOS7 新增的]
- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region;
- (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region;
- (void)locationManager:(CLLocationManager *)manager monitoringDidFailForRegion:(CLRegion *)region
withError:(NSError *)error;
接下就可以讲讲MapKit:
二、MKMapView
1、annotations :通过点击会弹出一个 MKAnnotationView
@property (readonly) NSArray *annotations;
@protocol MKAnnotation <NSObject>
@property (readonly) CLLocationCoordinate2D coordinate;//
@optional
@property (readonly) NSString *title; //标题
@property (readonly) NSString *subtitle;//副标题
@end
typedef {
CLLocationDegrees latitude;
CLLocationDegrees longitude;//经纬度
} CLLocationCoordinate2D;
2、MKAnnotationView
@property id <MKAnnotation> annotation;
@property UIImage *image; //可以修改如上图的大头针的图片
@property UIView *leftCalloutAccessoryView; //弹出View的修改
@property UIView *rightCalloutAccessoryView;
@property BOOL enabled;
@property CGPoint centerOffset;
@property BOOL draggable;
(1 [非常像UITableView]创建视图(不创建会自动创建)
- (MKAnnotationView *)mapView:(MKMapView *)sender viewForAnnotation:(id <MKAnnotation>)annotation
{
MKAnnotationView *aView = [sender dequeueReusableAnnotationViewWithIdentifier:IDENT];
if (!aView) {
aView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation
reuseIdentifier:IDENT];
aView.annotation = annotation;
return aView;
}
(2 View里面的图标被轻点事件
- (void)mapView:(MKMapView *)sender annotationView:(MKAnnotationView *)aView
calloutAccessoryControlTapped:(UIControl *)control;
(3 大头针被轻点事件
- (void)mapView:(MKMapView *)sender didSelectAnnotationView:(MKAnnotationView *)aView
{
if ([aView.leftCalloutAccessoryView isKindOfClass:[UIImageView class]])
{
UIImageView *imageView = (UIImageView *)aView.leftCalloutAccessoryView;
imageView.image = ...;
}
}
(4 调用摄像头操作
+ (MKMapCamera *)cameraLookingAtCenterCoordinate:(CLLocationCoordinate2D)coord
fromEyeCoordinate:(CLLocationCoordinate2D)cameraPosition
eyeAltitude:(CLLocationDistance)eyeAltitude;
(5 设置动画效果:比如地理位置的转移,先从上的转移,然后再从上到下
- (void)mapView:(MKMapView *)mapView didChangeRegionAnimated:(BOOL)animated;
3、MKLocalSearch 搜索
(1 搜索
MKLocalSearchRequest *request = [[MKLocalSearchRequest alloc] init];
request.naturalLanguageQuery = @“Ike’s”;
request.region = ...;
MKLocalSearch *search = [[MKLocalSearch alloc] initWithRequest:request];
[search startWithCompletionHandler:^(MKLocalSearchResponse *response, NSError *error) { // 得到一个MKMapItem 数组,里面还包含MKPlacemark }];
(2 在地图APP中打开
- (BOOL)openInMapsWithLaunchOptions:(NSDictionary *)options;
4、MKDirections 路线
三、Embed Segue
Container View