使用此link。
我试图获取从一个坐标到另一坐标的路线方向,但没有得到路线。下面提到用过的编码...
NSArray *routesArray = [res objectForKey:@"routes"];
NSDictionary *routeDict = [routesArray objectAtIndex:0];
NSDictionary *routeOverviewPolyline = [routeDict objectForKey:@"overview_polyline"];
NSString *points = [routeOverviewPolyline objectForKey:@"points"];
GMSPath *path = [GMSPath pathFromEncodedPath:points];
polyline = [GMSPolyline polylineWithPath:path];
polyline.strokeColor = [UIColor greenColor];
polyline.strokeWidth = 10.f;
polyline.map = mapView_;
谁能知道。请帮助我解决此问题。
最佳答案
您可以使用GoogleMapsDirection从Google Directions API获取路径或DirectionResponse。 NSLogs对于查看正在使用的内容很有用。
[[GMDirectionService sharedInstance] getDirectionsFrom:origin to:destination succeeded:^(GMDirection *directionResponse) {
if ([directionResponse statusOK]){
NSLog(@"Duration : %@", [directionResponse durationHumanized]);
NSLog(@"Distance : %@", [directionResponse distanceHumanized]);
NSArray *routes = [[directionResponse directionResponse] objectForKey:@"routes"];
// NSLog(@"Route : %@", [[directionResponse directionResponse] objectForKey:@"routes"]);
}
} failed:^(NSError *error) {
NSLog(@"Can't reach the server")
}];
一旦有了json,就可以获取路径点(这显示了索引0处的第一条路线)。
GMSPath *path = [GMSPath pathFromEncodedPath:routes[0][@"overview_polyline"][@"points"]];
然后,您可以将路径转换为折线,然后在mapView上绘制它,并根据需要设置strokeColor和strokeWidth。
GMSPolyline *polyline = [GMSPolyline polylineWithPath:path];
polyline.strokeColor = [UIColor redColor];
polyline.strokeWidth = 5.f;
然后将polyline.map属性设置为mapView。
polyline.map = mapView;
最后放在一起
[[GMDirectionService sharedInstance] getDirectionsFrom:origin to:destination succeeded:^(GMDirection *directionResponse) {
if ([directionResponse statusOK]){
NSLog(@"Duration : %@", [directionResponse durationHumanized]);
NSLog(@"Distance : %@", [directionResponse distanceHumanized]);
NSArray *routes = [[directionResponse directionResponse] objectForKey:@"routes"];
// NSLog(@"Route : %@", [[directionResponse directionResponse] objectForKey:@"routes"]);
GMSPath *path = [GMSPath pathFromEncodedPath:routes[0][@"overview_polyline"] [@"points"]];
GMSPolyline *polyline = [GMSPolyline polylineWithPath:path];
polyline.strokeColor = [UIColor redColor];
polyline.strokeWidth = 5.f;
polyline.map = mapView;
}
} failed:^(NSError *error) {
NSLog(@"Can't reach the server")
}];
我发现CocoaPods对于安装Google Maps SDK和GoogleMapsDirection非常有用。
关于iphone - 在iOS 7中使用Google Map绘制折线?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/20512578/