如何在 5 分钟内获取一次 gps 位置 android? [英] How to get gps location once for 5 mins android?

问题描述

任何人都可以给我一个示例代码，每五分钟获取一次位置，请我尝试过，我可以通过单击按钮获取一次位置，但我需要它显示一次五分钟.

hi there can anybody give me a sample code for get location for every five minutes please i have tried and i can get location once by cliking on button, but i need it to be displayed once for five minutes.

谢谢你

这是我的代码:

public void checkLocation(View v) {

        //initialize location manager
        manager =  (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        //check if GPS is enabled
        //if not, notify user with a toast
        if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            Toast.makeText(this, "GPS is disabled.", Toast.LENGTH_SHORT).show();
        } else {

            //get a location provider from location manager
            //empty criteria searches through all providers and returns the best one
            String providerName = manager.getBestProvider(new Criteria(), true);
            Location location = manager.getLastKnownLocation(providerName);

            TextView tv = (TextView)findViewById(R.id.locationResults);
            if (location != null) {
                tv.setText(location.getLatitude() + " latitude, " + location.getLongitude() + " longitude");
            } else {
                tv.setText("Last known location not found. Waiting for updated location...");
            }
            //sign up to be notified of location updates every 15 seconds - for production code this should be at least a minute
            manager.requestLocationUpdates(providerName, 15000, 1, this);
        }
    }

    @Override
    public void onLocationChanged(Location location) {
        TextView tv = (TextView)findViewById(R.id.locationResults);
        if (location != null) {
            tv.setText(location.getLatitude() + " latitude, " + location.getLongitude() + " longitude");
        } else {
            tv.setText("Problem getting location");
        }
    }

    @Override
    public void onProviderDisabled(String arg0) {}

    @Override
    public void onProviderEnabled(String arg0) {}

    @Override
    public void onStatusChanged(String arg0, int arg1, Bundle arg2) {}

    // Find the closest Bart Station
    public String findClosestBart(Location loc) {
        double lat = loc.getLatitude();
        double lon = loc.getLongitude();

        double curStatLat = 0;
        double curStatLon = 0;
        double shortestDistSoFar = Double.POSITIVE_INFINITY;
        double curDist;
        String curStat = null;
        String closestStat = null;

        //sort through all the stations
        // write some sort of for loop using the API.

        curDist = Math.sqrt( ((lat - curStatLat) * (lat - curStatLat)) +
                        ((lon - curStatLon) * (lon - curStatLon)) );
        if (curDist < shortestDistSoFar) {
            closestStat = curStat;
        }

        return closestStat;

        }   

推荐答案

这是获取位置的代码，并设置gps的监听器以在几分钟和距离上获取当前位置，我也使用了可运行对象来获取位置每隔几分钟.

Here is the code for getting location and set the listener for gps to get current location on few minute and distance, also I have used runnable object to get the location on every few minutes.

Location gpslocation = null;

private static final int GPS_TIME_INTERVAL = 60000; // get gps location every 1 min
private static final int GPS_DISTANCE= 1000; // set the distance value in meter

/*
   for frequently getting current position then above object value set to 0 for both you will get continues location but it drown the battery
*/

private void obtainLocation(){
if(locMan==null)
    locMan = (LocationManager) getSystemService(LOCATION_SERVICE);

    if(locMan.isProviderEnabled(LocationManager.GPS_PROVIDER)){
        gpslocation = locMan.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        if(isLocationListener){
             locMan.requestLocationUpdates(LocationManager.GPS_PROVIDER, 
                        GPS_TIME_INTERVAL, GPS_DISTANCE, GPSListener);
                }
            }
        }
}

现在使用此方法获取当前位置，并在每 1 分钟和 1000 米距离发生位置变化时调用监听器.

Now use this method to get the current location and the listener was called on location change with every 1 min and 1000 meter of distance.

对于每 5 分钟获取一次，您可以使用此处理程序和 runnable 在设定好的时间段内获取此位置:

For getting every 5 min you can use this handler and runnable to get this location on well set period time:

private static final int HANDLER_DELAY = 1000*60*5;

Handler handler = new Handler();
handler.postDelayed(new Runnable() {
        public void run() {
            myLocation = obtainLocation();
            handler.postDelayed(this, HANDLER_DELAY);
        }
    }, START_HANDLER_DELAY);

这里是位置变化事件的 GPS 监听器:

Here is GPS listener for location change event:

private LocationListener GPSListener = new LocationListener(){
    public void onLocationChanged(Location location) {
        // update location
        locMan.removeUpdates(GPSListener); // remove this listener
    }

    public void onProviderDisabled(String provider) {
    }

    public void onProviderEnabled(String provider) {
    }

    public void onStatusChanged(String provider, int status, Bundle extras) {
    }
};

您可以为获取 GPS 位置的侦听器和处理程序设置相同的间隔时间.

You can set interval time for listener and handler same for getting GPS location.

这篇关于如何在 5 分钟内获取一次 gps 位置 android?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！