从带有方向的 ios 应用程序打开苹果地图应用程序
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Opens apple maps app from ios app with directions
提问by Kostenko
As the title states I would like to open the native maps app in the ios device from within my own app, by pressing a button. currently I have used an MKmapviewthat displays a simple pin with lat/long taken from a jsonfile.
正如标题所述，我想通过按下按钮从我自己的应用程序中打开 ios 设备中的本机地图应用程序。目前我使用了一个MKmapview显示一个简单的针脚，从json文件中获取纬度/经度。
the code is this :
代码是这样的：
- (void)viewDidLoad {
[super viewDidLoad];
}
// We are delegate for map view
self.mapView.delegate = self;
// Set title
self.title = self.location.title;
// set texts...
self.placeLabel.text = self.location.place;
self.telephoneLabel.text = self.location.telephone;
self.urlLabel.text = self.location.url;
**// Make a map annotation for a pin from the longitude/latitude points
MapAnnotation *mapPoint = [[MapAnnotation alloc] init];
mapPoint.coordinate = CLLocationCoordinate2DMake([self.location.latitude doubleValue], [self.location.longitude doubleValue]);
mapPoint.title = self.location.title;**
// Add it to the map view
[self.mapView addAnnotation:mapPoint];
// Zoom to a region around the pin
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(mapPoint.coordinate, 500, 500);
[self.mapView setRegion:region];
}`
}`
When you touch the pin an info box appears with a title and an info button.
当您触摸图钉时，会出现一个带有标题和信息按钮的信息框。
this is the code :
这是代码：
#pragma mark - MKMapViewDelegate
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
MKPinAnnotationView *view = nil;
static NSString *reuseIdentifier = @"MapAnnotation";
// Return a MKPinAnnotationView with a simple accessory button
view = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:reuseIdentifier];
if(!view) {
view = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:reuseIdentifier];
view.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
view.canShowCallout = YES;
view.animatesDrop = YES;
}
return view;
}
I want to make a method that opens the maps app with directions from the Current users location to the mapPoint above , when clicking the button in the info box above. Is that possible? Also Can I customize the look of this button? (i mean like putting a different image to the button to make it look like "press me for direction kinda" ).
我想创建一个方法，当单击上面信息框中的按钮时，可以打开地图应用程序，其中包含从当前用户位置到上面 mapPoint 的方向。那可能吗？我也可以自定义这个按钮的外观吗？（我的意思是在按钮上放一个不同的图像，使它看起来像“按我的方向”）。
Sorry if this a stupid question, but this is my first ios app and Obj-c is a totally new language to me.
对不起，如果这是一个愚蠢的问题，但这是我的第一个 ios 应用程序，而 Obj-c 对我来说是一种全新的语言。
thanks for all the replies in advance.
感谢您提前回复。
回答by larva
You init a button and add action to button:
您初始化一个按钮并向按钮添加操作：
Objective-C Code
Objective-C 代码
NSString* directionsURL = [NSString stringWithFormat:@"http://maps.apple.com/?saddr=%f,%f&daddr=%f,%f",self.mapView.userLocation.coordinate.latitude, self.mapView.userLocation.coordinate.longitude, mapPoint.coordinate.latitude, mapPoint.coordinate.longitude];
if ([[UIApplication sharedApplication] respondsToSelector:@selector(openURL:options:completionHandler:)]) {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString: directionsURL] options:@{} completionHandler:^(BOOL success) {}];
} else {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString: directionsURL]];
}
with the mapPoint is where you want to direction to.
与 mapPoint 是你想要的方向。
Swift3 or later
Swift3 或更高版本
let directionsURL = "http://maps.apple.com/?saddr=35.6813023,139.7640529&daddr=35.4657901,139.6201192"
guard let url = URL(string: directionsURL) else {
return
}
if #available(iOS 10.0, *) {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
} else {
UIApplication.shared.openURL(url)
}
Note that saddr, daddris urlencodedstring of location name or location coordinate (about encode URL look at here).
请注意，saddr,daddr是位置名称或位置坐标的urlencoded字符串（关于编码 URL 看这里）。
directionsURLexample:
directionsURL例子：
// directions with location coordinate
"http://maps.apple.com/?saddr=35.6813023,139.7640529&daddr=35.4657901,139.6201192"
// or directions with location name
"http://maps.apple.com/?saddr=Tokyo&daddr=Yokohama"
// or directions from current location to destination location
"http://maps.apple.com/?saddr=Current%20Location&daddr=Yokohama"
More options parameters (like transport type, map type ...) look at here
更多选项参数（如传输类型、地图类型...）请看这里
回答by Micha?l Azevedo
You can open maps with direction using this code : (assuming your id< MKAnnotation > class has a CLLocationCoordinate2D public property named "coordinate")
您可以使用以下代码打开带方向的地图：（假设您的 id< MKAnnotation > 类具有名为“坐标”的 CLLocationCoordinate2D 公共属性）
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:[annotation coordinate] addressDictionary:nil];
MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:"WhereIWantToGo"]];
NSDictionary *options = @{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving};
[mapItem openInMapsWithLaunchOptions:options];
You can also change the button, actually you are using a standard style button :
您还可以更改按钮，实际上您使用的是标准样式按钮：
[UIButton buttonWithType:UIButtonTypeDetailDisclosure];
But you can alloc your custom button with an image or a label :
但是您可以使用图像或标签分配自定义按钮：
[[UIButton alloc] initWithImage:[UIImage imageNamed:"directionIcon.png"]];
回答by anshul-systematix
Here is the working code for showing directions on Apple map. It'll work for current place to your destination place and you just need to pass lat & long of destination place.
这是在 Apple 地图上显示路线的工作代码。它适用于当前地点到您的目的地，您只需要通过目的地的纬度和经度。
double destinationLatitude, destinationLongitude;
destinationLatitude=// Latitude of destination place.
destinationLongitude=// Longitude of destination place.
Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)])
{
// Create an MKMapItem to pass to the Maps app
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(destinationLatitude,destinationLongitude);
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:coordinate addressDictionary:nil];
MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:@"Name/text on destination annotation pin"];
// Set the directions mode to "Driving"
// Can use MKLaunchOptionsDirectionsModeDriving instead
NSDictionary *launchOptions = @{MKLaunchOptionsDirectionsModeKey : MKLaunchOptionsDirectionsModeDriving};
// Get the "Current User Location" MKMapItem
MKMapItem *currentLocationMapItem = [MKMapItem mapItemForCurrentLocation];
// Pass the current location and destination map items to the Maps app
// Set the direction mode in the launchOptions dictionary
[MKMapItem openMapsWithItems:@[currentLocationMapItem, mapItem] launchOptions:launchOptions];
}
Also, share me here, if notice any issue or we need to find out another way to done it.
另外，如果发现任何问题，或者我们需要找到另一种方法来完成它，请在此处与我分享。
