Question

我一直在努力解决这个问题，但我在网上发现的一切都没有用。我已经为我的项目获得了一个不受限制的密钥，但地图仍然无法正确显示。返回的状态被视为正常，但不显示任何内容。我还确保为该密钥启用两个API。下面是一些图片，显示了我的代码后面的样子。如果我需要包含任何其他代码，只需评论您需要的内容。我还使用了https://github.com/akexorcist/Android-GoogleDirectionLibrary

中的Google方向库

单击按钮后，它会转到正确的区域，但一切都是灰色的，所以我相信我的谷歌地图有问题。

依赖关系

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:design:24.2.1'
    compile 'com.android.support:recyclerview-v7:24.2.1'
    compile 'com.akexorcist:googledirectionlibrary:1.0.5'
    testCompile 'junit:junit:4.12'
}

XML Fragment

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_directions"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="<did not show my package>.Directions">

    <fragment
        android:id="@+id/map_fragment"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context="<did not show my package>.MapsActivity" />

    <Button
        android:id="@+id/get_directions_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:text="Get Directions" />
</RelativeLayout>

Directions.java

import android.graphics.Color;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v4.app.FragmentActivity;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import com.akexorcist.googledirection.DirectionCallback;
import com.akexorcist.googledirection.GoogleDirection;
import com.akexorcist.googledirection.constant.TransportMode;
import com.akexorcist.googledirection.model.Direction;
import com.akexorcist.googledirection.model.Route;
import com.akexorcist.googledirection.util.DirectionConverter;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngBounds;
import com.google.android.gms.maps.model.MarkerOptions;

import java.util.ArrayList;

public class Directions extends AppCompatActivity implements OnMapReadyCallback,
                                View.OnClickListener, DirectionCallback
{
    private GoogleMap googleMap;
    private LatLng origin = new LatLng(29.572813, -97.984900);
    private LatLng destination;
    private Button get_directions_btn;
    private String serverKey = "<server key not shown>";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_directions);


        // origin = new LatLng(29.572813, -97.984900);

        Bundle bundle = getIntent().getExtras();
        double destLatitude = bundle.getDouble("latitude");
        double destLongitude = bundle.getDouble("longitude");
        Log.d("Latitude", "Latitude is: " + destLatitude);
        Log.d("Longitude", "Longitude is:" + destLongitude);
        destination = new LatLng(destLatitude, destLongitude);

        get_directions_btn = (Button) findViewById(R.id.get_directions_btn);
        get_directions_btn.setOnClickListener(this);

        ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map_fragment)).getMapAsync(this);
    }

    public void onMapReady(GoogleMap googleMap) {
        this.googleMap = googleMap;
    }

    public void onClick(View v) {
        int id = v.getId();
        if (id == R.id.get_directions_btn) {
            requestDirection();

        }
    }

    public void requestDirection() {
        Log.d("RequestOrigin", "Origin inside request: " + origin);
        Log.d("RequestDestination", "Destination inside request: " + destination);
        Snackbar.make(get_directions_btn, "Direction Requesting...", Snackbar.LENGTH_SHORT).show();
        GoogleDirection.withServerKey(serverKey)
                .from(origin)
                .to(destination)
                .transportMode(TransportMode.DRIVING)
                .execute(this);
    }

    public void onDirectionSuccess(Direction direction, String rawBody) {
        Log.d("Status","Direction Status is:" +direction.getStatus());
        Snackbar.make(get_directions_btn, "Success with status : " + direction.getStatus(), Snackbar.LENGTH_SHORT).show();
        if (direction.isOK()) {
            Route route = direction.getRouteList().get(0);
            Log.d("Route ", "Route is: " + route);

            Log.d("Origin Marker", "Origin Marker: " + origin);
            Log.d("Destination Marker", "Destination Marker: " + destination);
            googleMap.addMarker(new MarkerOptions().position(origin));
            googleMap.addMarker(new MarkerOptions().position(destination));

            ArrayList<LatLng> directionPositionList = route.getLegList().get(0).getDirectionPoint();
            googleMap.addPolyline(DirectionConverter.createPolyline(this, directionPositionList, 5, Color.RED));
            setCameraWithCoordinationBounds(route);

            get_directions_btn.setVisibility(View.GONE);

        }
        else{
            Log.d("Status","Direction Status is:" +direction.getStatus());
            Snackbar.make(get_directions_btn, direction.getStatus(), Snackbar.LENGTH_SHORT).show();
        }
    }

        public void onDirectionFailure(Throwable t) {
            Snackbar.make(get_directions_btn, t.getMessage(), Snackbar.LENGTH_SHORT).show();
        }


    private void setCameraWithCoordinationBounds(Route route) {
        LatLng southwest = route.getBound().getSouthwestCoordination().getCoordination();
        LatLng northeast = route.getBound().getNortheastCoordination().getCoordination();
        LatLngBounds bounds = new LatLngBounds(southwest, northeast);
        googleMap.animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 100));
    }
}

清单元数据

 <meta-data android:name="com.google.android.geo.API_KEY"
            android:value="@string/google_maps_key"/>

清单权限

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

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

Answer 1

无论如何，您可以尝试申请custom style to Google Map。对于地图样式JSON准备，您可以使用Styling Wizard并将带有样式描述的JSON文件（例如map_style.json）保存到res/raw文件夹中。而不是在onMapReady()回调中应用自定义样式：

public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {

    private GoogleMap mGoogleMap;
    private MapFragment mapFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mapFragment = (MapFragment) getFragmentManager()
                .findFragmentById(R.id.map_fragment);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mGoogleMap = googleMap;

        try {
            // Customise the styling of the base map using a JSON object defined
            // in a raw resource file.
            boolean success = mGoogleMap.setMapStyle(
                    MapStyleOptions.loadRawResourceStyle(
                            this, R.raw.map_style));

            if (!success) {
                Log.e(TAG, "Style parsing failed.");
            }
        } catch (Resources.NotFoundException e) {
            Log.e(TAG, "Can't find style. Error: ", e);
        }


    }

}

Google Maps API显示灰色屏幕

1 个答案: