Google Maps SDKを使用しているときに、iOSの2つの場所の間で運転方向を取得しようとしています。私たちは2つの方法を使用してこれを行うことができることを知っています:
1.)URLスキームを使用します。これには、Googleマップアプリがデバイスにインストールされている必要があります。
2.)ルートAPIを使用して、リクエスト/レスポンス経由でJSONを解析します。方向を示すマーカーを表示します。
さて、私の質問は、iOSでこれを行うことができる他の方法はありますか?現在の場所から緯度/経度がある特定の場所までの方向を示す必要があります。
つまり、単に2つの場所をパラメーターとして渡し、Google Maps SDKを渡すことは実際に不可能です。
おかげで、
UIを探しているようですChrome Googleマップアプリが道順を表示するために持っています。GoogleマップSDK for iOSはマップをペイントしますが、追加のナビゲーションクロームを担当します。
Google Directions API を使用してルートをリクエストし、サービスから返されたエンコードパスを使用して GMSPolyline を使用して GMSPathのpathFromEncodedPath: 方法。
NSString *urlString = [NSString stringWithFormat:
@"%@?origin=%f,%f&destination=%f,%f&sensor=true&key=%@",
@"https://maps.googleapis.com/maps/api/directions/json",
mapView.myLocation.coordinate.latitude,
mapView.myLocation.coordinate.longitude,
destLatitude,
destLongitude,
@"Your Google Api Key String"];
NSURL *directionsURL = [NSURL URLWithString:urlString];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:directionsURL];
[request startSynchronous];
NSError *error = [request error];
if (!error) {
NSString *response = [request responseString];
NSLog(@"%@",response);
NSDictionary *json =[NSJSONSerialization JSONObjectWithData:[request responseData] options:NSJSONReadingMutableContainers error:&error];
GMSPath *path =[GMSPath pathFromEncodedPath:json[@"routes"][0][@"overview_polyline"][@"points"]];
GMSPolyline *singleLine = [GMSPolyline polylineWithPath:path];
singleLine.strokeWidth = 7;
singleLine.strokeColor = [UIColor greenColor];
singleLine.map = self.mapView;
}
else NSLog(@"%@",[request error]);
注:Google開発者コンソールでGoogle Direction API Sdkが有効になっていることを確認してください。
これらの行は、特定の緯度/経度とユーザーの位置の間の位置を示しています。
NSString *googleMapUrlString = [NSString stringWithFormat:@"http://maps.google.com/?saddr=%f,%f&daddr=%@,%@", mapView.userLocation.coordinate.latitude, mapView.userLocation.coordinate.longitude, destinationLatitude, destinationLongtitude];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:googleMapUrlString]];
Swift 3.0およびXCode 8. AFNetworkingおよびSwiftJsonの使用
let destLatitude="26.9124"
let destLongitude="75.7873"
mapView.isMyLocationEnabled = true
var urlString = "\("https://maps.googleapis.com/maps/api/directions/json")?origin=\("28.7041"),\("77.1025")&destination=\(destLatitude),\(destLongitude)&sensor=true&key=\("Your-Api-key")"
urlString = urlString.addingPercentEncoding( withAllowedCharacters: .urlQueryAllowed)!
let manager=AFHTTPRequestOperationManager()
manager.responseSerializer = AFJSONResponseSerializer(readingOptions: JSONSerialization.ReadingOptions.allowFragments) as AFJSONResponseSerializer
manager.requestSerializer = AFJSONRequestSerializer() as AFJSONRequestSerializer
manager.responseSerializer.acceptableContentTypes = NSSet(objects:"application/json", "text/html", "text/plain", "text/json", "text/javascript", "audio/wav") as Set<NSObject>
manager.post(urlString, parameters: nil, constructingBodyWith: { (formdata:AFMultipartFormData!) -> Void in
}, success: { operation, response -> Void in
//{"responseString" : "Success","result" : {"userId" : "4"},"errorCode" : 1}
//if(response != nil){
let parsedData = JSON(response)
print_debug("parsedData : \(parsedData)")
var path = GMSPath.init(fromEncodedPath: parsedData["routes"][0]["overview_polyline"]["points"].string!)
//GMSPath.fromEncodedPath(parsedData["routes"][0]["overview_polyline"]["points"].string!)
var singleLine = GMSPolyline.init(path: path)
singleLine.strokeWidth = 7
singleLine.strokeColor = UIColor.green
singleLine.map = self.mapView
//let loginResponeObj=LoginRespone.init(fromJson: parsedData)
// }
}, failure: { operation, error -> Void in
print_debug(error)
let errorDict = NSMutableDictionary()
errorDict.setObject(ErrorCodes.errorCodeFailed.rawValue, forKey: ServiceKeys.keyErrorCode.rawValue as NSCopying)
errorDict.setObject(ErrorMessages.errorTryAgain.rawValue, forKey: ServiceKeys.keyErrorMessage.rawValue as NSCopying)
})
PINS DISTANCE AND DURATIONとマップ上でDIRECTION ROUTEを示しているので、私はそれをやった。ただし、GOOGLE DIRECTION API TO ENABLEDをGOOGLE DEVELOPER CONSOLEに設定することを忘れないでください
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager.requestSerializer setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
NSString *urlString =@"https://maps.googleapis.com/maps/api/directions/json";
NSDictionary *dictParameters = @{@"Origin" : [NSString stringWithFormat:@"%@",_sourceAdd], @"destination" : [NSString stringWithFormat:@"%@",_destinationAdd], @"mode" : @"driving", @"key":@"AIzaSyD9cWTQkAxemELVXTNUCALOmzlDv5b9Dhg"};
[manager GET:urlString parameters:dictParameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
GMSPath *path =[GMSPath pathFromEncodedPath:responseObject[@"routes"][0][@"overview_polyline"][@"points"]];
NSDictionary *arr=responseObject[@"routes"][0][@"legs"];
NSMutableArray *loc=[[NSMutableArray alloc]init];
loc=[[arr valueForKey:@"start_location"]valueForKey:@"lat"];
_sourceloc.latitude=[loc[0] doubleValue];
loc=[[arr valueForKey:@"start_location"]valueForKey:@"lng"];
_sourceloc.longitude=[loc[0] doubleValue];
loc=[[arr valueForKey:@"end_location"]valueForKey:@"lat"];
_destinationloc.latitude=[loc[0] doubleValue];
loc=[[arr valueForKey:@"end_location"]valueForKey:@"lng"];
_destinationloc.longitude=[loc[0] doubleValue];
NSString *dis,*dur;
loc=[[arr valueForKey:@"distance"]valueForKey:@"text"];
dis=loc[0];
loc=[[arr valueForKey:@"duration"]valueForKey:@"text"];
dur=loc[0];
NSString *sa,*da;
loc=[arr valueForKey:@"start_address"];
sa=loc[0];
loc=[arr valueForKey:@"end_address"];
da=loc[0];
UIAlertView *av=[[UIAlertView alloc]initWithTitle:@"Route Info" message:[NSString stringWithFormat:@"Distance:%@ \nDuration:%@",dis,dur] delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil, nil];
[av show];
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:_sourceloc.latitude longitude:_sourceloc.longitude zoom:10];
mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
GMSMarker *marker = [GMSMarker markerWithPosition:_sourceloc];
marker.title=@"Source";
marker.snippet =sa;
marker.appearAnimation = kGMSMarkerAnimationPop;
marker.map = mapView;
GMSMarker *marker2 = [GMSMarker markerWithPosition:_destinationloc];
marker2.title=@"Destination";
marker2.snippet =da;
marker2.appearAnimation = kGMSMarkerAnimationPop;
marker2.map = mapView;
GMSPolyline *singleLine = [GMSPolyline polylineWithPath:path];
singleLine.strokeWidth = 4;
singleLine.strokeColor = [UIColor blueColor];
singleLine.map = mapView;
self.view = mapView;
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error: %@", error);
}];
Swift 4.1、Xcode 9.4.1
//Here you need to set your Origin and destination points and mode
let url = NSURL(string: "https://maps.googleapis.com/maps/api/directions/json?origin=Machilipatnam&destination=Vijayawada&mode=driving")
//OR if you want to use latitude and longitude for source and destination
//let url = NSURL(string: "\("https://maps.googleapis.com/maps/api/directions/json")?origin=\("17.521100"),\("78.452854")&destination=\("15.1393932"),\("76.9214428")")
let task = URLSession.shared.dataTask(with: url! as URL) { (data, response, error) -> Void in
do {
if data != nil {
let dic = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableLeaves) as! [String:AnyObject]
// print(dic)
let status = dic["status"] as! String
var routesArray:String!
if status == "OK" {
routesArray = (((dic["routes"]!as! [Any])[0] as! [String:Any])["overview_polyline"] as! [String:Any])["points"] as! String
// print("routesArray: \(String(describing: routesArray))")
}
DispatchQueue.main.async {
let path = GMSPath.init(fromEncodedPath: routesArray!)
let singleLine = GMSPolyline.init(path: path)
singleLine.strokeWidth = 6.0
singleLine.strokeColor = .blue
singleLine.map = mapView
}
}
} catch {
print("Error")
}
}
task.resume()
ここで、key(google api key)を上記のAPIに追加する必要があります。
(void)viewDidLoad {
[super viewDidLoad];
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:30.692408
longitude:76.767556
zoom:14];
GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
mapView.myLocationEnabled = YES;
// Creates markers in the center of the map.
GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = CLLocationCoordinate2DMake(30.6936659, 76.77201819999999);
marker.title = @"Chandigarh 47c";
marker.snippet = @"Hello World";
marker.map = mapView;
GMSMarker *marker1 = [[GMSMarker alloc] init];
marker1.position = CLLocationCoordinate2DMake(30.742138, 76.818756);
marker1.title = @"Sukhna Lake";
marker1.map = mapView;
//creating a path
GMSMutablePath *path = [GMSMutablePath path];
[path addCoordinate:CLLocationCoordinate2DMake(@(30.6936659).doubleValue,@(76.77201819999999).doubleValue)];
[path addCoordinate:CLLocationCoordinate2DMake(@(30.742138).doubleValue,@(76.818756).doubleValue)];
GMSPolyline *rectangle = [GMSPolyline polylineWithPath:path];
rectangle.strokeWidth = 2.f;
rectangle.map = mapView;
self.view=mapView;
}
Google開発者コンソールでキーを作成し、プロジェクトがApp bundleIDで作成されたことを確認してから、次のコードを追加します
NSString *KEY=@"";
NSString *Origin=@"";
NSString *Destination=@"";
NSString *str_maps=[NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/directions/json?origin=%@&destination=%@&key=%@",Origin,Destination,KEY];
NSURL *url=[NSURL URLWithString:str_maps];
NSData *dta=[NSData dataWithContentsOfURL:url];
NSDictionary *dict=(NSDictionary *)[NSJSONSerialization JSONObjectWithData:dta options:kNilOptions error:nil];
NSLog(@"%@",dict);