我是android studio的初学者。我正在尝试构建一个我的项目应用程序，只需单击一下即可将我的位置发送到另一个客户端。即通过在线服务器。
首先，我尝试测试我的按钮是否从LocationListener获取纬度和经度值。
下面是我的mainActivity
import android.app.Dialog;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
public class MainActivity extends AppCompatActivity implements View.OnClickListener, LocationListener {
protected LocationManager locationManager;
protected LocationListener locationListener;
protected Context context;
private String myLoc = " ";
GoogleMap mMap;
Button bShare;
private static final int ERROR_DIALOG_REQUEST = 9001;
private static final double Shillong_Lat = 25.5667,
Shillong_Lng = 91.8833;
private GoogleApiClient mLocationClient;
private com.google.android.gms.location.LocationListener mListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 10000, 1000, this);
if (servicesOK() ){
setContentView(R.layout.activity_map);
bShare = (Button) findViewById(R.id.bShare);
bShare.setOnClickListener(this);
if(initMap()) {
Toast.makeText(MainActivity.this, "Ready to map", Toast.LENGTH_SHORT).show();
gotoLocation(Shillong_Lat, Shillong_Lng, 15 );
mMap.setMyLocationEnabled(true);
}else{
Toast.makeText(this, "Map not Connected!", Toast.LENGTH_SHORT).show();
}
}else {
setContentView(R.layout.activity_main);
}
}
private void gotoLocation(double latitude, double longitude, float zoom) {
LatLng latLng = new LatLng(latitude, longitude);
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(
latLng, zoom);
mMap.moveCamera(update);
}
public boolean servicesOK(){
int isAvailable = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if(isAvailable == ConnectionResult.SUCCESS){
return true;
}else if(GooglePlayServicesUtil.isUserRecoverableError(isAvailable)) {
Dialog dialog = GooglePlayServicesUtil.getErrorDialog(isAvailable, this, ERROR_DIALOG_REQUEST);
dialog.show();
}else {
Toast.makeText(this, "Can't connect to map", Toast.LENGTH_SHORT).show();
}return false;
}
private boolean initMap() {
if (mMap == null){
SupportMapFragment mapFragment =
(SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mMap = mapFragment.getMap();
}
return(mMap != null);
}
@Override
public void onLocationChanged(Location location) {
Toast.makeText(MainActivity.this, "Location changed: " + location.getLatitude() + ", " + location.getLongitude(), Toast.LENGTH_SHORT).show();
double latitude = location.getLatitude();
double longitude = location.getLongitude();
myLoc = GetAddressDetailed(latitude, longitude);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onClick(View v) {
if(v.getId() == R.id.bShare){
Toast.makeText(MainActivity.this, "Sent: " + myLat + ", " + myLon ,Toast.LENGTH_SHORT).show();
}
}
}