Question

几个月前我写了这段代码。它对我来说非常好。我再次需要代码，我无法看到地图，我google了很多，发现我使用的一些东西已被弃用。我之前尝试使用片段和fragmentActivity而不是MapActivity。但我不希望需要改变。我查了一下他们的钥匙是完美的。我得到了这些地方的名字，但当我试图在地图上显示它们时，我的地图是空白的，我的堆栈跟踪中出现错误 View.InflateException：二进制xml文件行＃2：错误膨胀类片段 < / p>

我的活动看起来像这样

public class PlacesMapActivity extends FragmentActivity {
// Nearest places
PlacesList nearPlaces;

// Map view
MapView mapView;

// Map overlay items
List<Overlay> mapOverlays;

AddItemizedOverlay itemizedOverlay;

GeoPoint geoPoint;
// Map controllers
MapController mc;
double latitude;
double longitude;
OverlayItem overlayitem;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.map_places);

    // Getting intent data
    Intent i = getIntent();

    // Users current geo location
    String user_latitude = i.getStringExtra("user_latitude");
    String user_longitude = i.getStringExtra("user_longitude");

    // Nearplaces list
    nearPlaces = (PlacesList) i.getSerializableExtra("near_places");

    mapView = (MapView) findViewById(R.id.mapView);
    mapView.setBuiltInZoomControls(true);

    mapOverlays = mapView.getOverlays();

    // Geopoint to place on map
    geoPoint = new GeoPoint((int) (Double.parseDouble(user_latitude) * 1E6),
            (int) (Double.parseDouble(user_longitude) * 1E6));

    // Drawable marker icon
    Drawable drawable_user = this.getResources()
            .getDrawable(R.drawable.mark_red);

    itemizedOverlay = new AddItemizedOverlay(drawable_user, this);

    // Map overlay item
    overlayitem = new OverlayItem(geoPoint, "Your Location",
            "That is you!");

    itemizedOverlay.addOverlay(overlayitem);

    mapOverlays.add(itemizedOverlay);
    itemizedOverlay.populateNow();

    // Drawable marker icon
    Drawable drawable = this.getResources()
            .getDrawable(R.drawable.mark_blue);

    itemizedOverlay = new AddItemizedOverlay(drawable, this);

    mc = mapView.getController();

    // These values are used to get map boundary area
    // The area where you can see all the markers on screen
    int minLat = Integer.MAX_VALUE;
    int minLong = Integer.MAX_VALUE;
    int maxLat = Integer.MIN_VALUE;
    int maxLong = Integer.MIN_VALUE;

    // check for null in case it is null
    if (nearPlaces.results != null) {
        // loop through all the places
        for (Place place : nearPlaces.results) {
            latitude = place.geometry.location.lat; // latitude
            longitude = place.geometry.location.lng; // longitude

            // Geopoint to place on map
            geoPoint = new GeoPoint((int) (latitude * 1E6),
                    (int) (longitude * 1E6));

            // Map overlay item
            overlayitem = new OverlayItem(geoPoint, place.name,
                    place.vicinity);

            itemizedOverlay.addOverlay(overlayitem);

            // calculating map boundary area
            minLat  = (int) Math.min( geoPoint.getLatitudeE6(), minLat );
            minLong = (int) Math.min( geoPoint.getLongitudeE6(), minLong);
            maxLat  = (int) Math.max( geoPoint.getLatitudeE6(), maxLat );
            maxLong = (int) Math.max( geoPoint.getLongitudeE6(), maxLong );
        }
        mapOverlays.add(itemizedOverlay);

        // showing all overlay items
        itemizedOverlay.populateNow();
    }

    // Adjusting the zoom level so that you can see all the markers on map
    mapView.getController().zoomToSpan(Math.abs( minLat - maxLat ), Math.abs( minLong - maxLong ));

    // Showing the center of the map
    mc.animateTo(new GeoPoint((maxLat + minLat)/2, (maxLong + minLong)/2 ));
    mapView.postInvalidate();

}

}

我的xml文件看起来像这样

<?xml version="1.0" encoding="utf-8"?>
      <fragment xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/mapView"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:name="com.google.android.gms.maps.SupportMapFragment"/>

请帮帮我。这令人沮丧。

谷歌api v2的麻烦

0 个答案: