【发布时间】：2018-08-05 13:41:44
【问题描述】：
我想在不使用谷歌地图的情况下在我的 android 项目中获取 gps 位置。 我开发了一个 在模拟器上运行 但无法在手机上获取位置的活动
【问题讨论】：
-
你能展示一下你做了什么吗？
-
向我们展示你的努力:)
标签： android
【发布时间】：2018-08-05 13:41:44
【问题描述】：
此代码显示如何获取纬度和经度。希望对你有帮助
public class GPSTracker extends Service implements LocationListener {
private final Context context;
boolean isGPSEnabled = false;
boolean isNetworkEnabled = false;
public boolean canGetLocation = false;
Location location;
double latitude;
double longitude;
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10;
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1;
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.context = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) context.getSystemService(LOCATION_SERVICE);
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if(!isGPSEnabled && !isNetworkEnabled) {
} else {
this.canGetLocation = true;
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
if(isGPSEnabled) {
if(location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if(locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
public void stopUsingGPS() {
if(locationManager != null) {
locationManager.removeUpdates(GPSTracker.this);
}
}
public double getLatitude() {
if(location != null) {
latitude = location.getLatitude();
}
return latitude;
}
public double getLongitude() {
if(location != null) {
longitude = location.getLongitude();
}
return longitude;
}
public boolean canGetLocation() {
return this.canGetLocation;
}
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(context);
alertDialog.setTitle("GPS is settings");
alertDialog.setMessage("Turn on your GPS to find nearby helpers");
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
context.startActivity(intent);
}
});
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertDialog.show();
}
@Override
public void onLocationChanged(Location arg0) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String arg0) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String arg0) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
// TODO Auto-generated method stub
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
}
【讨论】：
请下载此源代码，它将帮助您获得经纬度。 :) 从这两个你可以得到你的位置。希望这会有所帮助..
乐于助人 :) https://www.androidhive.info/2015/02/android-location-api-using-google-play-services/
【讨论】：
有两种方法可以获得当前位置
首先是使用GPS native api，其次是使用 goolge 地图库来做到这一点
第一种方法是
// Acquire a reference to the system Location Manager
LocationManager locationManager = (LocationManager)this.getSystemService(Context.LOCATION_SERVICE);
// Define a listener that responds to location updates
LocationListener locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
// Called when a new location is found by the network location provider.
makeUseOfNewLocation(location);
}
public void onStatusChanged(String provider, int status, Bundle extras) {}
public void onProviderEnabled(String provider) {}
public void onProviderDisabled(String provider) {}
};
// Register the listener with the Location Manager to receive location updates
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
【讨论】：
通过GPS经纬度简单获取当前位置：
首先放入你的AndroidManifest.xml:<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
然后向用户请求访问精细位置的权限：
public void fineLocation(Activity activity) {
ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
if (requestCode == 1) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// get location because permission is granted.
}
}
}
然后得到当前的经纬度：
@SuppressWarnings("ResourceType")
public void gpsLoc(Context context) {
android.location.LocationManager manager = (android.location.LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
if (manager != null) {
for (String provider : manager.getAllProviders()) {
Location location = manager.getLastKnownLocation(provider);
if (location != null) {
double lat = location.getLatitude();
double lon = location.getLongitude();
}
}
}
}
【讨论】：
试试这个
@SuppressWarnings("ResourceType")
public void gpsLoc(Context context) {
android.location.LocationManager manager = (android.location.LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
if (manager != null) {
for (String provider : manager.getAllProviders()) {
Location location = manager.getLastKnownLocation(provider);
if (location != null) {
double lat = location.getLatitude();
double lon = location.getLongitude();
}
}
}
}
【讨论】：