Android：如何获取经度和纬度的当前位置？
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【中文标题】Android：如何获取经度和纬度的当前位置？【英文标题】：Android :How to get Current Location in Longitude and latitude? 【发布时间】：2017-05-09 16:49:50 【问题描述】：当我点击Button时，我想将当前位置存储到数据库中。
位置已存储，但它正在接收 0.0 ,0.0 不知道我的代码中的错误在哪里 这里我发布了我的完整代码，请帮助我解决这个问题。
获取当前位置
GetCurrentGPSLocation gps = new GetCurrentGPSLocation(getActivity());
// check if GPS enabled
if (gps.canGetLocation())
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
// \n is for new line
lat.setText( ""+latitude);
longi.setText("" +longitude);
latitude12=lat.getText().toString();
longitude12=longi.getText().toString();
Toast.makeText(getActivity(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
longi.setVisibility(View.INVISIBLE);
lat.setVisibility(View.INVISIBLE);
else
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
获取当前GPS位置
package com.example.sachin.omcom;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
public class GetCurrentGPSLocation extends AppCompatActivity implements LocationListener
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GetCurrentGPSLocation(Context context)
this.mContext = context;
getLocation();
public Location getLocation()
try
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled)
// no network provider is enabled
else
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled)
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null)
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null)
latitude = location.getLatitude();
longitude = location.getLongitude();
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled)
if (location == null)
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
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;
/**
* Stop using GPS listener
* Calling this function will stop using GPS in your app
* */
public void stopUsingGPS()
if(locationManager != null)
locationManager.removeUpdates(GetCurrentGPSLocation.this);
/**
* Function to get latitude
* */
public double getLatitude()
if(location != null)
latitude = location.getLatitude();
// return latitude
return latitude;
/**
* Function to get longitude
* */
public double getLongitude()
if(location != null)
longitude = location.getLongitude();
// return longitude
return longitude;
/**
* Function to check GPS/wifi enabled
* @return boolean
* */
public boolean canGetLocation()
return this.canGetLocation;
/**
* Function to show settings alert dialog
* On pressing Settings button will lauch Settings Options
* */
public void showSettingsAlert()
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing Settings button
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog,int which)
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
);
// on pressing cancel button
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener()
public void onClick(DialogInterface dialog, int which)
dialog.cancel();
);
// Showing Alert Message
alertDialog.show();
@Override
public void onLocationChanged(Location location)
@Override
public void onProviderDisabled(String provider)
@Override
public void onProviderEnabled(String provider)
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
// @Override
public IBinder onBind(Intent arg0)
return null;
【问题讨论】：
您是否在清单文件中添加了定位服务权限？？？ 是的，我添加了权限 好的，然后让我检查你的代码并回复你，同时确保如果你在棉花糖上运行你的应用程序，那么你必须请求运行时权限 您使用了一些严重损坏的 GPS 代码。在gabesechansoftware.com/location-tracking 查看它损坏的原因和一些工作代码，特别是 canGetLocation 实现错误。它不会告诉您位置是否可用，只要用户没有关闭 GPS。 What is the simplest and most robust way to get the user's current location on Android?的可能重复 【参考方案1】：每次您的位置更新时都会调用onLocationChanged，因此请保留并更新一个全局值，并在您的Button 上获取该值以执行您想要的操作
private LatLng latLng;
@Override
public void onLocationChanged(Location location)
if(location!=null)
latLng = new LatLng(location.getLatitude(), location.getLongitude());
或者根据时间或距离，您也可以使用android.location.LocationListener() 获取位置，请参阅编辑，
如果您想在一段时间后手动调用onLocationChanged，即使位置没有改变，请使用下面
LocationRequest mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(30000); //5 seconds
mLocationRequest.setFastestInterval(30000); //3 seconds
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
//mLocationRequest.setSmallestDisplacement(0.1F); //1/10 meter
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
return;
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
编辑：这是位置监听器，如果需要，您可以在没有上述内容的情况下单独使用它
private LocationManager locationManager;
private android.location.LocationListener myLocationListener;
public void checkLocation()
String serviceString = Context.LOCATION_SERVICE;
locationManager = (LocationManager) getSystemService(serviceString);
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
return;
myLocationListener = new android.location.LocationListener()
public void onLocationChanged(Location locationListener)
if (isGPSEnabled(YourActivityName.this))
if (locationListener != null)
if (ActivityCompat.checkSelfPermission(YourActivityName.this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(YourActivityName.this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
return;
if (locationManager != null)
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null)
latitude = location.getLatitude();
longitude = location.getLongitude();
else if (isInternetConnected(YourActivityName.this))
if (locationManager != null)
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null)
latitude = location.getLatitude();
longitude = location.getLongitude();
public void onProviderDisabled(String provider)
public void onProviderEnabled(String provider)
public void onStatusChanged(String provider, int status, Bundle extras)
;
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 1, myLocationListener);
isInternetConnected 方法
public static boolean isInternetConnected(Context ctx)
ConnectivityManager connectivityMgr = (ConnectivityManager) ctx
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo wifi = connectivityMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
NetworkInfo mobile = connectivityMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
// Check if wifi or mobile network is available or not. If any of them is
// available or connected then it will return true, otherwise false;
if (wifi != null)
if (wifi.isConnected())
return true;
if (mobile != null)
if (mobile.isConnected())
return true;
return false;
isGpsEnabled 方法
public boolean isGPSEnabled(Context mContext)
LocationManager locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
return locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
注意：现在不要混淆。这里提到了3种方式。
1.自动使用onLocationChanged
手动使用onLocationChanged
使用android.location.LocationListener() 添加完整的实现（这不会帮助您学习，但会获取数据。通过这些行并通过搜索实际发生的事情来理解它们）
【讨论】：
@Sachin Solanki 了解逻辑。首先了解onLocationChanged 何时被调用，然后放入日志或sout 看看是否有效.. 好的.. 然后你知道该方法被调用当位置发生变化时。
您已经拥有onLocationChanged 方法。好吧..现在假设你想手动调用 onLocationChanged 让我们每 3 秒后说一次..现在使用下面的方法..Private LocationRequest mLocationRequest, --
然后在一个方法中使用从mLocationRequest = new LocationRequest(); mLocationRequest.setInterval(30000); //5 seconds mLocationRequest.setFastestInterval(30000); //3 seconds mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY); ......开始的方法中的另一部分，并从onCreate调用它
谢谢..我肯定它会帮助我我正在尝试第三种方法..但我想当我当时点击按钮时只生成位置并存储在数据库中所以我应该怎么做把代码放在 onClickListner 里？
如果你想要那个..调用那个方法..所以它会监听位置..也许你可以在 oncreate 中添加那个调用。保留全局值并使用新位置更新它。单击按钮时获取该全局值。现在您不再需要侦听器工作了。因此，如果位置不为空，则在您的 onclick 中获取位置 .. 然后停止侦听器 .. 这是停止它的方法。只有 2 行 ***.com/questions/6894234/…【参考方案2】：
1.在build.gradle中添加依赖
compile 'com.google.android.gms:play-services:11.0.4'
compile 'com.google.android.gms:play-services-location:11.0.4'
2.在清单文件中添加这3个权限
android.permission.INTERNET,ACCESS_FINE_LOCATION,ACCESS_COARSE_LOCATION
3.你应该如何写你的课MainActivity:
public class MainActivity extends Activity implements LocationListener
LocationManager locationManager;
String provider;
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)
// Check Permissions Now
ActivityCompat.requestPermissions(this,
new String[] Manifest.permission.ACCESS_FINE_LOCATION ,
0);
// Getting LocationManager object
statusCheck();
locationManager = (LocationManager) getSystemService(
Context.LOCATION_SERVICE);
// Creating an empty criteria object
Criteria criteria = new Criteria();
// Getting the name of the provider that meets the criteria
provider = locationManager.getBestProvider(criteria, false);
if (provider != null && !provider.equals(""))
if (!provider.contains("gps")) // if gps is disabled
final Intent poke = new Intent();
poke.setClassName("com.android.settings",
"com.android.settings.widget.SettingsAppWidgetProvider");
poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
poke.setData(Uri.parse("3"));
sendBroadcast(poke);
// Get the location from the given provider
Location location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER, 500, 0, this);
if (location != null)
onLocationChanged(location);
else
location = locationManager.getLastKnownLocation(provider);
if (location != null)
onLocationChanged(location);
else
Toast.makeText(getBaseContext(), "Location can't be retrieved",
Toast.LENGTH_SHORT).show();
else
Toast.makeText(getBaseContext(), "No Provider Found",
Toast.LENGTH_SHORT).show();
public void statusCheck()
final LocationManager manager = (LocationManager) getSystemService(
Context.LOCATION_SERVICE);
if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER))
buildAlertMessageNoGps();
private void buildAlertMessageNoGps()
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(
"Your GPS seems to be disabled, do you want to enable it?")
.setCancelable(false).setPositiveButton("Yes",
new DialogInterface.OnClickListener()
public void onClick(final DialogInterface dialog,
final int id)
startActivity(new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
)
.setNegativeButton("No", new DialogInterface.OnClickListener()
public void onClick(final DialogInterface dialog,
final int id)
dialog.cancel();
);
final AlertDialog alert = builder.create();
alert.show();
@Override
public boolean onCreateOptionsMenu(Menu menu)
/* getMenuInflater().inflate(R.menu.activity_main, menu); */
return true;
@Override
public void onLocationChanged(Location location)
// Getting reference to TextView tv_longitude
TextView tvLongitude = (TextView) findViewById(R.id.tv_longitude);
// Getting reference to TextView tv_latitude
TextView tvLatitude = (TextView) findViewById(R.id.tv_latitude);
// Setting Current Longitude
tvLongitude.setText("Longitude:" + location.getLongitude());
// Setting Current Latitude
tvLatitude.setText("Latitude:" + location.getLatitude());
@Override
public void onProviderDisabled(String provider)
// TODO Auto-generated method stub
if (ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)
// Check Permissions Now
ActivityCompat.requestPermissions(this,
new String[] Manifest.permission.ACCESS_FINE_LOCATION ,
0);
@Override
public void onProviderEnabled(String provider)
// TODO Auto-generated method stub
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
// TODO Auto-generated method stub
4.你应该如何写你的activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_
android:layout_>
<TextView
android:id="@+id/tv_location"
android:layout_
android:layout_
android:layout_centerHorizontal="true"
android:text="@string/str_tv_location"
android:textStyle="bold" />
<TextView
android:id="@+id/tv_longitude"
android:layout_
android:layout_
android:layout_below="@id/tv_location"
android:layout_centerHorizontal="true" />
<TextView
android:id="@+id/tv_latitude"
android:layout_
android:layout_
android:layout_below="@id/tv_longitude"
android:layout_centerHorizontal="true" />
</RelativeLayout>
【讨论】：
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