利用系统APP实现导航---By张秀清
苹果系统本身自带一个地图APP,但是功能并不是很强大,但是一些简单的导航功能还是能做出来的,下面贴上我的代码
// // ViewController.m // 系统APP导航 // // Created by 张秀清 on 15/5/4. // Copyright (c) 2015年 张秀清. All rights reserved. // #import "ViewController.h" #import <MapKit/MapKit.h> @interface ViewController () /** * 输入起点 */ @property (nonatomic,strong) UITextField *startTF; /** * 输入终点 */ @property (nonatomic,strong) UITextField *endTF; /** * 开始导航按钮 */ @property (nonatomic,strong) UIButton *navigateButton; /** * 地理编码器 */ @property (nonatomic,strong) CLGeocoder *geocoder; @end @implementation ViewController #pragma mark - 懒加载 -(CLGeocoder *)geocoder{ if (!_geocoder) { _geocoder = [[CLGeocoder alloc]init]; } return _geocoder; } - (void)viewDidLoad { [super viewDidLoad]; [self initUI]; } #pragma mark - 初始化UI -(void)initUI{ _startTF = [[UITextField alloc]initWithFrame:CGRectMake(50, 100, 150, 50)]; _startTF.borderStyle = UITextBorderStyleRoundedRect; _startTF.placeholder = @"begin"; [self.view addSubview:_startTF]; _endTF = [[UITextField alloc]initWithFrame:CGRectMake(50, 150, 150, 50)]; _endTF.borderStyle = UITextBorderStyleRoundedRect; _endTF.placeholder = @"end"; [self.view addSubview:_endTF]; _navigateButton = [UIButton buttonWithType:UIButtonTypeSystem]; _navigateButton.frame = CGRectMake(50, 200, 100, 50); [_navigateButton setTitle:@"start" forState:UIControlStateNormal]; [_navigateButton addTarget:self action:@selector(startNavigation) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:_navigateButton]; } #pragma mark - 开始导航 -(void)startNavigation{ [self.geocoder geocodeAddressString:self.startTF.text completionHandler:^(NSArray *placemarks, NSError *error) { /** * 获取初始位置信息 */ if (placemarks.count == 0) { return ; } CLPlacemark *startCLPlacemark = [placemarks lastObject]; [self.geocoder geocodeAddressString:self.endTF.text completionHandler:^(NSArray *placemarks, NSError *error) { /** * 获取终点位置信息 */ if (placemarks.count == 0) { return ; } CLPlacemark *endCLPlacemark = [placemarks lastObject]; //开始导航 [self navigateWithStartCLPlacemark:startCLPlacemark endCLPlacemark:endCLPlacemark]; }]; }]; } //开始导航 -(void)navigateWithStartCLPlacemark:(CLPlacemark *)startCLPlacemark endCLPlacemark:(CLPlacemark *)endCLPlacemark{ MKPlacemark *startMKPlacemark = [[MKPlacemark alloc]initWithPlacemark:startCLPlacemark]; MKPlacemark *endMKPlacemark = [[MKPlacemark alloc]initWithPlacemark:endCLPlacemark]; MKMapItem *startItem = [[MKMapItem alloc]initWithPlacemark:startMKPlacemark]; MKMapItem *endItem = [[MKMapItem alloc]initWithPlacemark:endMKPlacemark]; NSMutableDictionary *dict = [NSMutableDictionary dictionary]; dict[MKLaunchOptionsMapTypeKey] = @(MKMapTypeStandard);//地图模式 dict[MKLaunchOptionsDirectionsModeKey] = MKLaunchOptionsDirectionsModeDriving;//导航模式(走路/开车) [MKMapItem openMapsWithItems:@[startItem,endItem] launchOptions:dict];//打开系统地图开始导航 } @end
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