Question

我正致力于通过GPS获取当前位置。但GPS总是给我最后保存的位置！可能是因为这条线！我正在寻找更好的解决方案！

的LocationManager .getLastKnownLocation（LocationManager.GPS_PROVIDER）;

以下是示例代码

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();
                        }
                    }
                }
            }

提前致谢！

Answer 1

检查此代码会对您有所帮助。

// 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
String address; //Address

// 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 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;
                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;
    }

Answer 2

您可以轻松实现您需要获取位置监听器

不要忘记添加权限

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

您可以在下方监听器中频繁更新位置更改。

private final LocationListener mLocationListener = new LocationListener() {
    @Override
    public void onLocationChanged(final Location location) {
        //your code here
                     if (location != null) {
                        latitude = location.getLatitude();
                        longitude = location.getLongitude();
                    }
    }
};

你必须在创建

上注册它

    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            mLocationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

            mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,    LOCATION_REFRESH_TIME,
                    LOCATION_REFRESH_DISTANCE, mLocationListener);
               //first time you can take the value from the lastKnown location 
               if (locationManager != null) {
               Location=locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (location != null) {
                            latitude = location.getLatitude();
                            longitude = location.getLongitude();
                        }
                    }

 }

Answer 3

如果您使用

locationManager .getLastKnownLocation(LocationManager.GPS_PROVIDER);

它只会返回GPS内部保存的最后一个位置。

由于您已添加了一个列表工具，因此您可以在onLocationChanged覆盖功能上获取下一个更改位置，该功能将是您需要的最近位置。

没有办法，你需要等到自动触发onLocationChanged功能......

Android：GPS正在提供最后保存的位置

3 个答案: