Google Maps應用程序可以在模擬器上運行，但不能在真實設備上運行

Question

我是這里的新用戶，我的聲譽不足以顯示我的應用程序的某些圖像以及我的問題，這會使它變得更加難以理解，因此很遺憾，僅在沒有任何應用程序圖像的情況下提出問題

我正在使用google nexus 4 ..API 18（android version 4.3）虛擬設備，並且一直在開發此應用，該應用可以在具有api 11或11+的任何android設備上運行，並且已經在真實的android設備上測試了該應用（三星銀河S2精簡版），但面臨的一些問題是

1）每當用戶在編輯文本框中輸入任何位置名稱，然后在同一活動中單擊“查找”按鈕時，都會在下面的地圖上繪制標記。.每次在虛擬設備中都可以正常工作，但是在android設備上當用戶單擊“查找”按鈕應用程序時會崩潰。

2）在第二個活動中，當用戶單擊該按鈕時，我將其位置設為按鈕..它將獲取設備的gps坐標並對其進行反向地理編碼，並在其中一個編輯文本框中顯示位置地址。在虛擬設備上也可以正常工作。花一點時間做每件事，但是在真實設備上，當我單擊左上角的圖標時，它什么都不顯示，它顯示使用gps進行搜索，但不顯示任何原因在這里花費太多時間..所以這是我在android設備上面臨的兩個問題，但在虛擬設備上運行良好。

plzzz幫我在那兒，我正在做我的fyp並掛在這里

問題1的代碼如下

package com.example.citytourguide;
import java.io.IOException;
import java.util.List;

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;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import android.content.Context;
import android.content.Intent;
import android.location.Address;
import android.location.Geocoder;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class TourGuide extends FragmentActivity {

    GoogleMap googleMap;
    Marker mark;
    LatLng latLng;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tour_guide);

        SupportMapFragment supportMapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
               googleMap = supportMapFragment.getMap();

          Button btn_route=(Button) findViewById(R.id.route);
          btn_route.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                startActivity(new Intent(getBaseContext(),ShowPath.class));
            }
        });


     // Getting reference to btn_find of the layout activity_main
        Button btn_find = (Button) findViewById(R.id.btn_find);
        btn_find.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {

                EditText loc_name = (EditText) findViewById(R.id.editText1);
                String location = loc_name.getText().toString();

                if(location.equals("")){
                    Toast.makeText(getBaseContext(), "Please! Enter Something to Find...", Toast.LENGTH_SHORT).show();

                }
                else{

                    ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
                    NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
                    boolean isWiFi = networkInfo.getType() == ConnectivityManager.TYPE_WIFI;
                    if (isWiFi==true)
                    {  
                        new GeocoderTask().execute(location);
                        }
                    else {
                        Toast.makeText(getBaseContext(), "Ooops! Error In Network Connection...", Toast.LENGTH_LONG).show();
                    }

                }
            }
        });

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.tour_guide, menu);
        return true;
    }

    // An AsyncTask class for accessing the GeoCoding Web Service
    protected class GeocoderTask extends AsyncTask<String, Void, List<Address>>{

        @Override
        protected List<Address> doInBackground(String... locationName) {
            // Creating an instance of Geocoder classtry
            Geocoder geocoder = new Geocoder(getBaseContext());
            List<Address> addresses = null;

            try {
                // Getting a maximum of 3 Address that matches the input text
                addresses = geocoder.getFromLocationName(locationName[0], 3);
            } catch (IOException e) {
                e.printStackTrace();
            }           
            return addresses; 
            }

        @Override
        protected void onPostExecute(List<Address> addresses) {         

            if(addresses==null || addresses.size()==0){
                Toast.makeText(getBaseContext(), "No Location found", Toast.LENGTH_SHORT).show();
            }

            // Clears all the existing markers on the map
            googleMap.clear();

            // Adding Markers on Google Map for each matching address
            for(int i=0;i<addresses.size();i++){                

                Address address = (Address) addresses.get(i);

                // Creating an instance of GeoPoint, to display in Google Map
                latLng = new LatLng(address.getLatitude(), address.getLongitude());

                String addressText = String.format("%s, %s", address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",address.getCountryName());

                // Showing the marker on the Map
                Marker mark =googleMap.addMarker(new MarkerOptions().position(latLng).title(addressText));
                mark.showInfoWindow(); // displaying title on the marker          



                // Locate the first location
                if(i==0)
                    googleMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));


            }           
        }   

}
    }

這是我可以訪問該位置的文件

   package com.example.citytourguide;

import java.io.IOException;
import java.util.List;

import com.google.android.gms.maps.model.LatLng;

import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.Settings;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.Toast;


public class ShowPath extends FragmentActivity implements OnClickListener,LocationListener {


    AutoCompleteTextView auto_to, auto_from;
    Button btn_path, btn_loc;
    double lat,lng;
     int i = 1 ;
     int a = 1 ;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_show_path);





        // Getting reference to btn_find of the layout activity_main
        auto_from = (AutoCompleteTextView) findViewById(R.id.from);         
        auto_to = (AutoCompleteTextView) findViewById(R.id.to);
        auto_from.setText(null);
        auto_to.setText(null);
        btn_path=(Button) findViewById(R.id.path);
        btn_loc=(Button) findViewById(R.id.btn_loc);    
        btn_path.setOnClickListener(this);
        btn_loc.setOnClickListener(this);


    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.show_path, menu);
        MenuItem menuitem=menu.add(Menu.NONE,Menu.FIRST,Menu.NONE,"Save");
        menuitem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
        return true;
    }
    public boolean onMenuItemSelected(int featureId,MenuItem item)

    {
        Toast.makeText(getBaseContext(),"Map has been concluded from "  + " to " , Toast.LENGTH_SHORT).show();
        return super.onMenuItemSelected(featureId, item);
    }


    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch(v.getId()){
        case R.id.path:
            String from=auto_from.getText().toString();
            String to = auto_to.getText().toString();

            if(to.equals("")&& from.equals("")){
                Toast.makeText(getBaseContext(), "Please! Enter Start and Destination properly...", Toast.LENGTH_SHORT).show();

            }
            else{
                ConnectivityManager connMgr = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
                NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
                boolean isWiFi = networkInfo.getType() == ConnectivityManager.TYPE_WIFI;

                if (isWiFi==true)
                { 
                    Intent in = new Intent(ShowPath.this,ShowMap.class);

                    in.putExtra("Start", from);
                    in.putExtra("Dest", to);
                    startActivity(in);

                }
                else {
                    Toast.makeText(getBaseContext(), "Ooops! Error In Network Connection...", Toast.LENGTH_LONG).show();
                }

            }
            break;
        case R.id.btn_loc:
            // Getting LocationManager object from System Service LOCATION_SERVICE
            LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

            // Creating a criteria object to retrieve provider
            Criteria criteria = new Criteria();

            // Getting the name of the best provider
            String provider = locationManager.getBestProvider(criteria, true);
            Location location = null ;


            if(provider.contains("gps"))
            {
                // Getting Current Location From GPS
                if(auto_from.getText().toString().matches("") && (auto_to.getText().toString().matches(""))){
                    i=0 ;
                }
                else if (auto_to.getText().toString().matches("")) {
                    a=0;
                }

                location = locationManager.getLastKnownLocation(provider);
                if(location!=null)
                    onLocationChanged(location);

            }
            else
            {
                showDialog(0);

            }
            locationManager.requestLocationUpdates(provider, 1000, 0, this);    
            //locationManager.requestLocationUpdates(provider, 20000, 0, this);
            break;
        default:
            break;

        }   //switch statement ends


    } // on click func ends

    @Override
    protected Dialog onCreateDialog(int id){

        final String message = "Enable either GPS or any other location"
                + " service to find current location.  Click OK to go to"
                + " location services settings to let you do so.";
        return new AlertDialog.Builder(this).setMessage(message)
                .setTitle("Warning")
                .setPositiveButton("Ok", new DialogInterface.OnClickListener() {

                    public void onClick(DialogInterface dialog,int whichButton)
                    {
                        Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                        startActivity(intent);
                    }
                })
                .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

                    public void onClick(DialogInterface dialog,int whichButton)
                    {
                        Toast.makeText(getBaseContext(),
                                "Gps services still disabled", Toast.LENGTH_SHORT).show();
                    }
                }).create();

    }

    @Override
    public void onLocationChanged(Location location) {
        // TODO Auto-generated method stub
        lat = location.getLatitude();
        lng = location.getLongitude();
        LatLng point = new LatLng(lat,lng);
        // converting user location to address and assign it to autocomplete text box
        new ReverseGeocodingTask(getBaseContext()).execute(point);
    }

    private class ReverseGeocodingTask extends AsyncTask<LatLng, Void, String>{
        Context mContext;

        public ReverseGeocodingTask(Context context){
            super();
            mContext = context;
        }

        // Finding address using reverse geocoding
        @Override
        protected String doInBackground(LatLng... params) {
            Geocoder geocoder = new Geocoder(mContext);
            double latitude = params[0].latitude;
            double longitude = params[0].longitude;
            List<Address> addresses = null;
            String addressText="";

            try {
                addresses = geocoder.getFromLocation(latitude, longitude,1);
            } catch (IOException e) {
                e.printStackTrace();
            }

            if(addresses != null && addresses.size() > 0 ){
                Address address = addresses.get(0);

                addressText = String.format("%s, %s, %s",
                        address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",
                                address.getLocality(),
                                address.getCountryName());
            }
            return addressText;
        }

        @Override
        protected void onPostExecute(String addressText) {
            if(i==0){
                auto_from.setText(addressText);
            i++ ;
            }
            else if(a==0){
                Log.d("asim","" + a);
                auto_to.setText(addressText);
            a++;
            }


        }// post execute finish
    }// class reverse geocoding finish



    @Override
    public void onProviderDisabled(String provider) {
        // TODO Auto-generated method stub

    }


    @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

    }



}

Answer 1

在第二個活動中，實際設備需要很多時間來獲取您的位置（2-10分鍾），具體取決於您是在露天還是在室內。 仿真器使用DDMS中的Emulater控件獲取位置坐標，因此所需時間不會超過幾秒鍾。嘗試在露天環境中測試您的應用。