Google maps 使用谷歌地图获取附近的地方
我正在尝试实现使用谷歌地图查找我当前位置附近的位置。 我在谷歌开发者控制台中创建了一个项目,并获得了“ios APIkey”和“服务器APIkey”。我还为iOS启用了Google Places API和Google Maps SDK。 下面是查找附近位置的代码Google maps 使用谷歌地图获取附近的地方,google-maps,swift,ios8,google-places-api,google-maps-sdk-ios,Google Maps,Swift,Ios8,Google Places Api,Google Maps Sdk Ios,我正在尝试实现使用谷歌地图查找我当前位置附近的位置。 我在谷歌开发者控制台中创建了一个项目,并获得了“ios APIkey”和“服务器APIkey”。我还为iOS启用了Google Places API和Google Maps SDK。 下面是查找附近位置的代码 func fetchPlacesNearCoordinate(coordinate: CLLocationCoordinate2D, radius: Double, name : String){ var urlString =
func fetchPlacesNearCoordinate(coordinate: CLLocationCoordinate2D, radius: Double, name : String){
var urlString = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?key=\(apiServerKey)&location=\(coordinate.latitude),\(coordinate.longitude)&radius=\(radius)&rankby=prominence&sensor=true"
urlString += "&name=\(name)"
urlString = urlString.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!
println(urlString)
if placesTask.taskIdentifier > 0 && placesTask.state == .Running {
placesTask.cancel()
}
UIApplication.sharedApplication().networkActivityIndicatorVisible = true
placesTask = session.dataTaskWithURL(NSURL(string: urlString)!) {data, response, error in
println("inside.")
UIApplication.sharedApplication().networkActivityIndicatorVisible = false
if let json = NSJSONSerialization.JSONObjectWithData(data, options:nil, error:nil) as? NSDictionary {
if let results = json["results"] as? NSArray {
for rawPlace:AnyObject in results {
println(rawPlace)
self.results.append(rawPlace as! String)
}
}
}
self.placesTask.resume()
}
}
传递的坐标是当前位置的坐标。若我执行上面的代码,并没有发生任何事情,但生成的url是有效的。如果我把这个网址放进谷歌,我会得到正确的结果。但我的应用程序中没有显示任何内容。请帮我解决这个问题。请让我知道我错在哪里 您将位置添加到结果数组中,但您已经完成了任何更新地图视图的操作,例如,将标记添加到地图视图中 将标记添加到mapview的示例代码:
let returnedPlaces: NSArray? = jsonResult["results"] as? NSArray
if returnedPlaces != nil {
for index in 0..<returnedPlaces!.count {
if let returnedPlace = returnedPlaces?[index] as? NSDictionary {
var placeName = ""
var latitude = 0.0
var longitude = 0.0
if let name = returnedPlace["name"] as? NSString {
placeName = name as String
}
if let geometry = returnedPlace["geometry"] as? NSDictionary {
if let location = geometry["location"] as? NSDictionary {
if let lat = location["lat"] as? Double {
latitude = lat
}
if let lng = location["lng"] as? Double {
longitude = lng
}
}
}
let marker = GMSMarker()
marker.position = CLLocationCoordinate2DMake(latitude, longitude)
marker.title = placeName
marker.map = self.mapView
}
}
}
let returnedPlaces:NSArray?=jsonResult[“结果”]作为?不可变数组
如果返回的位置!=零{
对于0..中的索引,只需设置Latt、long和Googleapkey
NSString *urlString= [NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=%@,%@&radius=2000&key=%@",lati,longi,kGoogleAPIKey];
[NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]] queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError)
{
if (connectionError)
{
NSLog(@"Error");
}
else
{
NSDictionary *dictJson = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];
NSArray *arrayPlaces = [[NSArray alloc] initWithArray:[dictJson objectForKey:@"results"]];
NSLog("Place %@",arrayPlaces);
}
}];
此外,如果您想通过文本搜索位置,只需按如下所示创建urlString
NSString *urlString = [NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/place/autocomplete/json?sensor=true&key=%@&language=en&input=%@&query=123+main+street&radius=50000&location=0.0,0.0&rankby=distance",kGoogleAPIKey,searchText];
在arrayPlaces中,您有附近的位置。您的请求URL是什么?还有您的self.placesTask.resume()
应该在你的dataTaskWithURL
方法闭包之外。哦,是的!!!!非常感谢Ztan…是的,我将dataTaskWithURL放在了dataTaskWithURL中,这是一个愚蠢的错误…现在它工作正常了…再次感谢!!!我遵循了上面给出的教程,但是地图上没有加载这些位置。有人能帮我吗?我已经安装了如果我想搜索附近的库怎么办?
func fetchPlacesNearCoordinate(coordinate: CLLocationCoordinate2D, radius: Double, name : String){
var urlString = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?key=\(apiServerKey)&location=\(coordinate.latitude),\(coordinate.longitude)&radius=\(radius)&rankby=prominence&sensor=true"
urlString += "&name=\(name)"
urlString = urlString.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!
println(urlString)
if placesTask.taskIdentifier > 0 && placesTask.state == .Running {
placesTask.cancel()
}
UIApplication.sharedApplication().networkActivityIndicatorVisible = true
placesTask = session.dataTaskWithURL(NSURL(string: urlString)!) {data, response, error in
println("inside.")
UIApplication.sharedApplication().networkActivityIndicatorVisible = false
if let json = NSJSONSerialization.JSONObjectWithData(data, options:nil, error:nil) as? NSDictionary {
if let results = json["results"] as? NSArray {
for rawPlace:AnyObject in results {
println(rawPlace)
self.results.append(rawPlace as! String)
}
}
}
self.placesTask.resume()
}
}