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Android在按钮点击中获取位置_Android_Android Location_Android Gps - Fatal编程技术网

Android在按钮点击中获取位置

Android在按钮点击中获取位置,android,android-location,android-gps,Android,Android Location,Android Gps,我尝试在按钮单击中获取位置。我写了LocationListener方法,一切都很完美。这是我的源代码 private class MyLocationListener implements LocationListener { @Override public void onLocationChanged(Location loc) { editLocation.setText(""); pb.setVisibility(View.INVISIB

我尝试在按钮单击中获取位置。我写了
LocationListener
方法,一切都很完美。这是我的源代码

private class MyLocationListener implements LocationListener {

    @Override
    public void onLocationChanged(Location loc) {
        editLocation.setText("");
        pb.setVisibility(View.INVISIBLE);
        Toast.makeText(
                getBaseContext(),
                "Location changed: Lat: " + loc.getLatitude() + " Lng: "
                    + loc.getLongitude(), Toast.LENGTH_SHORT).show();
        String longitude = "Longitude: " + loc.getLongitude();
        Log.v(TAG, longitude);
        String latitude = "Latitude: " + loc.getLatitude();
        Log.v(TAG, latitude);

        /*------- To get city name from coordinates -------- */
        String cityName = null;
        Geocoder gcd = new Geocoder(getBaseContext(), Locale.getDefault());
        List<Address> addresses;
        try {
            addresses = gcd.getFromLocation(loc.getLatitude(),
                    loc.getLongitude(), 1);
            if (addresses.size() > 0) {
                System.out.println(addresses.get(0).getLocality());
                cityName = addresses.get(0).getLocality();
            }
        }
        catch (IOException e) {
            e.printStackTrace();
        }
        String s = longitude + "\n" + latitude + "\n\nMy Current City is: "
            + cityName;
        editLocation.setText(s);
    }

    @Override
    public void onProviderDisabled(String provider) {}

    @Override
    public void onProviderEnabled(String provider) {}

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {}
}
私有类MyLocationListener实现LocationListener{
@凌驾
位置更改后的公共无效(位置loc){
editLocation.setText(“”);
pb.setVisibility(视图不可见);
Toast.makeText(
getBaseContext(),
位置已更改:纬度:“+loc.getLatitude()+”液化天然气:
+loc.getLongitude(),Toast.LENGTH_SHORT).show();
String longitude=“longitude:+loc.getLongitude();
Log.v(标签、经度);
String latitude=“latitude:+loc.getLatitude();
对数v(标签、纬度);
/*-------要从坐标中获取城市名称--------*/
字符串cityName=null;
Geocoder gcd=新的地理编码器(getBaseContext(),Locale.getDefault());
列出地址;
试一试{
地址=gcd.getFromLocation(loc.getLatitude(),
loc.getLongitude(),1);
如果(地址.size()>0){
System.out.println(addresses.get(0.getLocality());
cityName=addresses.get(0.getLocality();
}
}
捕获(IOE异常){
e、 printStackTrace();
}
字符串s=经度+“\n”+纬度+“\n\n我当前的城市是:”
+城市名称;
editLocation.setText;
}
@凌驾
公共无效onProviderDisabled(字符串提供程序){}
@凌驾
公共无效onProviderEnabled(字符串提供程序){}
@凌驾
public void onStatusChanged(字符串提供程序、int状态、Bundle extra){}
}
我可以使用
LocationListener
检查纬度和经度,但如何在按钮单击中获取当前位置

您是从


这是我的代码,适用于我的应用程序。您可以尝试获取该位置

 ro_gps_icon.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
            if (ActivityCompat.checkSelfPermission(RODetailsActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(RODetailsActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                return;
            }           locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 30000, 0, (LocationListener) RODetailsActivity.this);
            Criteria criteria = new Criteria();
            String bestProvider = locationManager.getBestProvider(criteria, true);
            Location location = locationManager.getLastKnownLocation(bestProvider);

            if (location == null) {
                Toast.makeText(getApplicationContext(), "GPS signal not found", Toast.LENGTH_SHORT).show();
            }
            if (location != null) {
                Log.e("locatin", "location--" + location);

                Log.e("latitude at beginning",
                        "@@@@@@@@@@@@@@@" + location.getLatitude());
                onLocationChanged(location);
            }
        }
    });
以及获取数据的方法

public void onLocationChanged(Location location) {
    Geocoder geocoder;
    List<Address> addresses;
    geocoder = new Geocoder(this, Locale.getDefault());

    double latitude = location.getLatitude();
    double longitude = location.getLongitude();

    Log.e("latitude", "latitude--" + latitude);
    try {
        Log.e("latitude", "inside latitude--" + latitude);
        addresses = geocoder.getFromLocation(latitude, longitude, 1);
        if (addresses != null && addresses.size() > 0) {
            String address = addresses.get(0).getAddressLine(0);
            String city = addresses.get(0).getLocality();
            String state = addresses.get(0).getAdminArea();
            String country = addresses.get(0).getCountryName();
            String postalCode = addresses.get(0).getPostalCode();
            String knownName = addresses.get(0).getFeatureName();

            ro_gps_location.setText(state + " , " + city + " , " + country);
            ro_address.setText(address + " , " + knownName + " , " + postalCode);
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}
public void onLocation已更改(位置){
地理编码器;
列出地址;
geocoder=新的geocoder(这个,Locale.getDefault());
双纬度=location.getLatitude();
double longitude=location.getLongitude();
Log.e(“纬度”、“纬度--”+纬度);
试一试{
Log.e(“纬度”,“内纬度--”+纬度);
地址=地理编码器.getFromLocation(纬度,经度,1);
if(addresses!=null&&addresses.size()>0){
字符串地址=地址.get(0).getAddressLine(0);
字符串city=addresses.get(0.getLocation();
字符串状态=addresses.get(0.getAdminArea();
字符串country=addresses.get(0.getCountryName();
字符串postalCode=addresses.get(0.getPostalCode();
字符串knownName=addresses.get(0.getFeatureName();
ro_gps_location.setText(州+”、“+城市+”、“+国家);
ro_address.setText(地址+”,“+knownName+”,“+postalCode);
}
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
}

您可以将纬度和经度设置为全局……这样您就可以在任何其他功能中使用它……如何@Rafsanahmad007最好的方法是使用回调,在获取位置时会通知您;有时候你不能期望在你需要它的时候就得到它——就像在快餐店点餐一样
public void onLocationChanged(Location location) {
    Geocoder geocoder;
    List<Address> addresses;
    geocoder = new Geocoder(this, Locale.getDefault());

    double latitude = location.getLatitude();
    double longitude = location.getLongitude();

    Log.e("latitude", "latitude--" + latitude);
    try {
        Log.e("latitude", "inside latitude--" + latitude);
        addresses = geocoder.getFromLocation(latitude, longitude, 1);
        if (addresses != null && addresses.size() > 0) {
            String address = addresses.get(0).getAddressLine(0);
            String city = addresses.get(0).getLocality();
            String state = addresses.get(0).getAdminArea();
            String country = addresses.get(0).getCountryName();
            String postalCode = addresses.get(0).getPostalCode();
            String knownName = addresses.get(0).getFeatureName();

            ro_gps_location.setText(state + " , " + city + " , " + country);
            ro_address.setText(address + " , " + knownName + " , " + postalCode);
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}