geolocation

问题 I am trying to make a simple form that requires address and zip code, so I was wondering if there is a way to auto populate those fields based on what the user has already typed. So for example if he decides to enter only the zip code the city and country fields will be filled automatically and vice-versa. After searching a while I found these databases that I could possibly use Link 1 Link 2 But apart from that I am not sure how to do this using PHP and MySQL. any help would be appreciated.

问题 I don't know how to get the location (GPS/Network when taking a photo) in Android. Any suggestion and code samples are welcomed. I haven't used until now the Location services, I have tried in many ways but I can't get it to work. Here is my image capturing activity: public class ImageCaptureActivity extends Activity { // Activity request codes private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100; public static final int MEDIA_TYPE_IMAGE = 1; Context context = null; // directory

问题 I don't know how to get the location (GPS/Network when taking a photo) in Android. Any suggestion and code samples are welcomed. I haven't used until now the Location services, I have tried in many ways but I can't get it to work. Here is my image capturing activity: public class ImageCaptureActivity extends Activity { // Activity request codes private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100; public static final int MEDIA_TYPE_IMAGE = 1; Context context = null; // directory

问题 How can I ask the twitter API to give me just geotagged statuses? I'm currently filtering but it would make more sense to be more 'friendly' 回答1: Seems like you should be able to do this with the streaming API and a location filter, just set the bounding box to cover the whole earth: Just as with the track parameter, queries are subject to Track Limitations, described in Track Limiting and subject to access roles, described in the statuses/filter method. Both the number and size of bounding

问题 How can I ask the twitter API to give me just geotagged statuses? I'm currently filtering but it would make more sense to be more 'friendly' 回答1: Seems like you should be able to do this with the streaming API and a location filter, just set the bounding box to cover the whole earth: Just as with the track parameter, queries are subject to Track Limitations, described in Track Limiting and subject to access roles, described in the statuses/filter method. Both the number and size of bounding

问题 I want to add a custom image to my annotations in the map. And i have made the following custom MapAnnotationView: #import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import <MapKit/MapKit.h> #import <CoreLocation/CoreLocation.h> @class POI; @interface MapAnnotation : MKAnnotationView <MKAnnotation > @property (nonatomic) CGFloat lat; @property (nonatomic) CGFloat lon; @property (nonatomic) CGFloat altitude; @property (nonatomic, copy) NSString * title; @property (nonatomic, copy)

问题 I have a computer on the local network, behind a NAT router. I have some 192.168.0.x addresses, but I really want to know my public IP address, not something mentioned in How to get the IP address of the server on which my C# application is running on? or How to get the IP address of a machine in C# I need C# code. Is it possible? If so, how? 回答1: I prefer http://icanhazip.com. It returns a simple text string. No HTML parsing required. string myIp = new WebClient().DownloadString(@"http:/

问题 Is there a service or API I can ping, and pass in the lat/long as parameters, where it returns the zip code that lat/long pair is within? This is US-only, so I don't have to worry about international codes, etc. I feel like Google Maps' reverse-geocoding is too heavy for me. I'd prefer something lighter, if possible. This will be done in javascript. 回答1: It is called Reverse Geocoding (Address Lookup). To get address for lat: 40.714224, lng: -73.961452 query http://maps.googleapis.com/maps

问题 I would like to execute a query where the distance is a dynamic field from the collection. Example of entries in the collection: { name:'myName', location: {lat:10, lng:20}, maximumDistance: 10 } { name:'myName2', location: {lat:20, lng:20}, maximumDistance: 100 } My goal is to retrieve all the elements from this collection where this location is close to a given location, let's say (10,10) but where the calculated distance is less than this maximumDistance field. I can set maxDistance to a

问题 My app got rejected by Apple three times, all with the same rejection letter, which is: We found that your app uses a background mode but does not include functionality that requires that mode to run persistently. This behavior is not in compliance with the App Store Review Guidelines. We noticed your app declares support for location in the UIBackgroundModes key in your Info.plist but does not include features that require persistent location. It would be appropriate to add features that