iOS 打开第三方导航

在IOS6.0系统后，兼容iOS5.0与iOS6.0地图导航，需要分两个步骤

#define SYSTEM_VERSION_LESS_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)//用来获取手机的系统，判断系统是多少

    CLLocationCoordinate2D startCoor = self.mapView.userLocation.location.coordinate;      CLLocationCoordinate2D endCoor = CLLocationCoordinate2DMake(startCoor.latitude+0.01, startCoor.longitude+0.01);            if (SYSTEM_VERSION_LESS_THAN(@"6.0")) { // ios6以下，调用google map                    NSString *urlString = [[NSString alloc] initWithFormat:@"http://maps.google.com/maps?saddr=%f,%f&daddr=%f,%f&dirfl=d",startCoor.latitude,startCoor.longitude,endCoor.latitude,endCoor.longitude];          //        @"http://maps.apple.com/?saddr=%f,%f&daddr=%f,%f",startCoor.latitude,startCoor.longitude,endCoor.latitude,endCoor.longitude          urlString =  [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];          NSURL *aURL = [NSURL URLWithString:urlString];          [[UIApplication sharedApplication] openURL:aURL];      } else { // 直接调用ios自己带的apple map                    MKMapItem *currentLocation = [MKMapItem mapItemForCurrentLocation];          MKMapItem *toLocation = [[MKMapItem alloc] initWithPlacemark:[[MKPlacemark alloc] initWithCoordinate:endCoor addressDictionary:nil]];          toLocation.name = @"to name";                    [MKMapItem openMapsWithItems:@[currentLocation, toLocation]                         launchOptions:@{MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving,MKLaunchOptionsShowsTrafficKey: [NSNumber numberWithBool:YES]}];                }  

如果不想使用苹果自带的地图的话，也可以使用第三方的地图，如百度、Google　Maps、高德等

使用前，先判断设备上是否已安装应用

百度地图：

if ([[UIApplicationsharedApplication]canOpenURL:[NSURLURLWithString:@"baidumap://map/"]])

参考

高德地图：

if ([[UIApplicationsharedApplication]canOpenURL:[NSURLURLWithString:@"iosamap://"]])

参考

Google Maps：

if ([[UIApplicationsharedApplication]canOpenURL:[NSURLURLWithString:@"comgooglemaps://"]])

参考

示例代码

 (void)availableMapsApps {      [self.availableMaps removeAllObjects];            CLLocationCoordinate2D startCoor = self.mapView.userLocation.location.coordinate;      CLLocationCoordinate2D endCoor = CLLocationCoordinate2DMake(startCoor.latitude+0.01, startCoor.longitude+0.01);      NSString *toName = @"to name";            if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"baidumap://map/"]]){          NSString *urlString = [NSString stringWithFormat:@"baidumap://map/direction?origin=latlng:%f,%f|name:我的位置&destination=latlng:%f,%f|name:%@&mode=transit",                                 startCoor.latitude, startCoor.longitude, endCoor.latitude, endCoor.longitude, toName];                    NSDictionary *dic = @{@"name": @"百度地图",                                @"url": urlString};          [self.availableMaps addObject:dic];      }      if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"iosamap://"]]) {          NSString *urlString = [NSString stringWithFormat:@"iosamap://navi?sourceApplication=%@&backScheme=applicationScheme&poiname=fangheng&poiid=BGVIS&lat=%f&lon=%f&dev=0&style=3",                                 @"云华时代", endCoor.latitude, endCoor.longitude];                    NSDictionary *dic = @{@"name": @"高德地图",                                @"url": urlString};          [self.availableMaps addObject:dic];      }      if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"comgooglemaps://"]]) {          NSString *urlString = [NSString stringWithFormat:@"comgooglemaps://?saddr=&daddr=%f,%f¢er=%f,%f&directionsmode=transit", endCoor.latitude, endCoor.longitude, startCoor.latitude, startCoor.longitude];                    NSDictionary *dic = @{@"name": @"Google Maps",                                @"url": urlString};          [self.availableMaps addObject:dic];      }  }  

显示一个ActionSheet

    [self availableMapsApps];          UIActionSheet *action = [[UIActionSheet alloc] init];                    [action addButtonWithTitle:@"使用系统自带地图导航"];          for (NSDictionary *dic in self.availableMaps) {              [action addButtonWithTitle:[NSString stringWithFormat:@"使用%@导航", dic[@"name"]]];          }          [action addButtonWithTitle:@"取消"];          action.cancelButtonIndex = self.availableMaps.count + 1;          action.delegate = self;          [action showInView:self.view];  

实现delegate

    - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {          if (buttonIndex == 0) {              CLLocationCoordinate2D startCoor = self.mapView.userLocation.location.coordinate;              CLLocationCoordinate2D endCoor = CLLocationCoordinate2DMake(startCoor.latitude+0.01, startCoor.longitude+0.01);                            if (SYSTEM_VERSION_LESS_THAN(@"6.0")) { // ios6以下，调用google map                                    NSString *urlString = [[NSString alloc] initWithFormat:@"http://maps.google.com/maps?saddr=%f,%f&daddr=%f,%f&dirfl=d",startCoor.latitude,startCoor.longitude,endCoor.latitude,endCoor.longitude];                  //        @"http://maps.apple.com/?saddr=%f,%f&daddr=%f,%f",startCoor.latitude,startCoor.longitude,endCoor.latitude,endCoor.longitude                  urlString =  [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];                  NSURL *aURL = [NSURL URLWithString:urlString];                  [[UIApplication sharedApplication] openURL:aURL];              } else{// 直接调用ios自己带的apple map                                    MKMapItem *currentLocation = [MKMapItem mapItemForCurrentLocation];                  MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:endCoor addressDictionary:nil];                  MKMapItem *toLocation = [[MKMapItem alloc] initWithPlacemark:placemark];                  toLocation.name = @"to name";                                    [MKMapItem openMapsWithItems:@[currentLocation, toLocation]                                 launchOptions:@{MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving,MKLaunchOptionsShowsTrafficKey: [NSNumber numberWithBool:YES]}];                                }          }else if (buttonIndex < self.availableMaps.count+1) {              NSDictionary *mapDic = self.availableMaps[buttonIndex-1];              NSString *urlString = mapDic[@"url"];              urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];              NSURL *url = [NSURL URLWithString:urlString];              DEBUG_LOG(@"\n%@\n%@\n%@", mapDic[@"name"], mapDic[@"url"], urlString);              [[UIApplication sharedApplication] openURL:url];          }      }