Geo capacities of Shiny Mobile

[Leprechault]

Hi Everyone, I'd like to know if is possible with Shiny Mobile the access of mobile geography coordinates (GPS hardware unit) and extract this information? My final goal is in a given geographic coodinate in a map the Shiny Mobile go to this coordinate of interest. Thanks in advance.

Alexandre

[dewalex]

To obtain the device's GPS location, you can use this javascript.

$(document).ready(function () {

                function getLocation(callback){
                var options = {
                  enableHighAccuracy: true,
                  timeout: 5000,
                  maximumAge: 0
                };
                
	 navigator.geolocation.getCurrentPosition(
					onSuccess, 
					onError,
					options
		);
        
                function onError (err) {
			Shiny.onInputChange("errormess", err.message);
                  Shiny.onInputChange("geolocation", false);
                }
                
                function onSuccess (position) {
                  setTimeout(function () {
                    var coords = position.coords;
                    var timestamp = new Date();
                    
                    console.log(coords.latitude + ", " + coords.longitude, "," + coords.accuracy);
                    Shiny.onInputChange("geolocation", true);
                    Shiny.onInputChange("lat", coords.latitude);
                    Shiny.onInputChange("long", coords.longitude);
                    Shiny.onInputChange("accuracy", coords.accuracy);
			
                    Shiny.onInputChange("time", timestamp)
                  
                    console.log(timestamp);       
                    if (callback) {
                      callback();
                    }
                  }, 1100)
                }
              }
            
              var TIMEOUT = 1000; //SPECIFY
              var started = false;
              function getLocationRepeat(){
                //first time only - no delay needed
                if (!started) {
                  started = true;
                  getLocation(getLocationRepeat);
                  return;
                }
                setTimeout(function () {
                  getLocation(getLocationRepeat);
                }, TIMEOUT);
              };
              getLocationRepeat();
                
            });

Save it as a file (e.g. "myJSfile.js) and put it in your project folder. On your UI, put includeScript("myJSfile.js") and then you will get input$geolocation == TRUE when you have the device's location and you can also call input$lat, input$long, input$accuracy, and input$time. All are updated for the specified interval.