在Android Target 2.3.4上运行Google Maps应用程序会产生致命异常

概述我创建了一个使用谷歌地图的Android应用程序.我正在使用Eclipse,活动布局xml如下.<?xmlversion="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apkes/android"android:layout_width="match_parent"

我创建了一个使用谷歌地图的Android应用程序.我正在使用Eclipse,活动布局xml如下.

 <?xml version="1.0" enCoding="utf-8"?> <linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"      androID:layout_wIDth="match_parent"      androID:layout_height="match_parent"      androID:orIEntation="vertical" >      <fragment          androID:name="com.Google.androID.gms.maps.SupportMapFragment"          androID:ID="@+ID/map"          androID:layout_wIDth="match_parent"          androID:layout_height="match_parent" />  </linearLayout>

这是Activity类

 @Suppresslint("ShowToast") public class MapVIEwActivity extends FragmentActivity {  static LatLng currentLatLng;  LatLng currentLocation;  private GoogleMap map;  boolean firstPass = true;  double currentLat;  double currentlong;@OverrIDeprotected voID onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentVIEw(R.layout.activity_map_vIEw);    showCurrentLocationOnMap();     try {        showSheltersAndFuelStops();    } catch (IOException e) {        // Todo auto-generated catch block        e.printstacktrace();    }}//This will change when sql connection string is implemented.private voID showSheltersAndFuelStops() throws IOException {    List<McDonalds> mcdList = new ArrayList<McDonalds>();    List<Subway> subwayList = new ArrayList<Subway>();    String subwayRoswell1 = "1307 N Main St, Roswell, NM, 88203";    String subwayRoswell2 = "1701 W Second St, Roswell, NM, 88201";    String subwayLC1 = "2001 E Lohman, Las Cruces, NM, 88001";    String subwayLC2 = "2821 N Telshor, Las Cruces, NM 88011";    String mcdonaldsRoswell1 = "720 N Main St, Roswell, NM, 88201";    String mcdonaldsRoswell2 = "1804 S Main St, Roswell, NM, 88203";    String mcdonaldsLC1 = "4810 Mesa Grande, Las Cruces, NM, 88012";    String mcdonaldsLC2 = "571 Walton Blvd, Las Cruces, NM, 88001";          Subway subway = new Subway(" 1307 N Main St, Roswell, NM, 88203", 1.58, 8.0);    subwayList.add(subway);    Subway subway1 = new Subway(" 1701 W Second St, Roswell, NM, 88201", 2.47, 12.0);    subwayList.add(subway1);    Subway subsLC = new Subway(" 2001 E Lohman, Las Cruces, NM, 88001", 147.99, 185.0);    subwayList.add(subsLC);    Subway subsLC1 = new Subway(" 2821 N Telshor Drive, Las Cruces, NM, 88011", 147.12, 200.0);    subwayList.add(subsLC1);    McDonalds mcdonalds = new McDonalds(" 720 N Main St, Roswell, NM, 88201", 1.08, 8.0);    mcdList.add(mcdonalds);    McDonalds mcdonalds1 = new McDonalds(" 1804 S Main St, Roswell, NM, 88203", 2.9, 12.0);    mcdList.add(mcdonalds1);    McDonalds mcdonaldslc = new McDonalds(" 4810 Mesa Grande, Las Cruces, NM, 88012", 143.2, 185.0);    mcdList.add(mcdonaldslc);    McDonalds mcdonaldslc1 = new McDonalds(" 571 Walton Blvd, Las Cruces, NM, 88001", 147.62, 200.0);    mcdList.add(mcdonaldslc1);    showFuelStops(subwayRoswell1);    showFuelStops(subwayRoswell2);    showFuelStops(subwayLC1);    showFuelStops(subwayLC2);    showShelters(mcdonaldsRoswell1);    showShelters(mcdonaldsRoswell2);    showShelters(mcdonaldsLC1);    showShelters(mcdonaldsLC2);}private voID showFuelStops(String location) throws IOException{    Geocoder geocoder = new Geocoder(this, Locale.getDefault());      List<Address> addresses;    addresses = geocoder.getFromLocationname(location, 1);    if(addresses.size() > 0) {        BitmapDescriptor subwayBitmapDescriptor = BitmapDescriptorFactory.fromresource(R.drawable.fillingstation);        currentLat= addresses.get(0).getLatitude();        currentlong= addresses.get(0).getLongitude();        LatLng subLoc = new LatLng(currentLat, currentlong);        Marker fuelMarker = map.addMarker(new MarkerOptions().position(subLoc).icon(subwayBitmapDescriptor).Title("Subway, " + location));    }       }private voID showShelters(String location) throws IOException{    Geocoder geocoder = new Geocoder(this, Locale.getDefault());      List<Address> addresses;    addresses = geocoder.getFromLocationname(location, 1);    if(addresses.size() > 0) {        BitmapDescriptor subwayBitmapDescriptor = BitmapDescriptorFactory.fromresource(R.drawable.shelter);        double latitude= addresses.get(0).getLatitude();        double longitude= addresses.get(0).getLongitude();        LatLng subLoc = new LatLng(latitude, longitude);        Marker hamburg = map.addMarker(new MarkerOptions().position(subLoc).icon(subwayBitmapDescriptor).Title("McDonalds, " + location));    }       }private voID showCurrentLocationOnMap(){    LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);    SupportMapFragment mf= (SupportMapFragment)getSupportFragmentManager().findFragmentByID(R.ID.map);    map = mf.getMap();    //map = ((MapFragment) getFragmentManager().findFragmentByID(R.ID.map)).getMap();    LocationListener ll = new MylocationListener();    boolean isGPS = lm.isProvIDerEnabled(LocationManager.GPS_PROVIDER);    if (!isGPS){        Intent intent = new Intent("androID.location.GPS_ENABLED_CHANGE");        intent.putExtra("enabled", true);        sendbroadcast(intent);    }    lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 10000, 10, ll);}@OverrIDepublic boolean onCreateOptionsMenu(Menu menu) {    // Inflate the menu; this adds items to the action bar if it is present.    getMenuInflater().inflate(R.menu.map_vIEw, menu);    return true;}/** *MylocationListener class will give the current GPS location  *with the help of Location Listener interface  */private class MylocationListener implements LocationListener {    private boolean zoomed = false;    @OverrIDe    public voID onLocationChanged(Location location) {        if (location != null) {            // ---Get current location latitude, longitude---            Log.d("LOCATION CHANGED", location.getLatitude() + "");            Log.d("LOCATION CHANGED", location.getLongitude() + "");            currentLocation = new LatLng(location.getLatitude(), location.getLongitude());            currentLatLng = new LatLng(location.getLatitude(), location.getLongitude());            Marker currentLocationMarker = map.addMarker(new MarkerOptions().position(currentLocation).Title("Current Location"));            // Move the camera instantly to hamburg with a zoom of 15.            map.moveCamera(CameraUpdateFactory.newLatLngZoom(currentLatLng, 15));            // Zoom in, animating the camera.            if (!zoomed) {                map.animateCamera(CameraUpdateFactory.zoomTo(12), 2000, null);                zoomed = true;            }            if (!firstPass){                currentLocationMarker.remove();            }            firstPass = false;            Toast.makeText(MapVIEwActivity.this,"Latitude = "+                    location.getLatitude() + "" +"Longitude = "+ location.getLongitude(),                    Toast.LENGTH_LONG).show();        } else {            //MapVIEwActivity.this.startActivity(new Intent(MapVIEwActivity.this, NoGPSLocActivity.class));        }    }    @OverrIDe    public voID onProvIDerDisabled(String provIDer) {    }    @OverrIDe    public voID onProvIDerEnabled(String provIDer) {    }    @OverrIDe    public voID onStatusChanged(String provIDer, int status, Bundle extras) {    }}

}

当我在其他版本的AndroID上运行此应用程序运行良好,但在AndroID 2.3.4的目标上我得到这个致命的例外.

解决方法:

您收到错误是因为您尝试在不支持碎片的AndroID系统上使用Fragment.要为此版本的 *** 作系统启用片段支持,您必须将项目的引用添加到Google-support-v4库.并使用xml中的SupportMapFragment对象而不是MapFragment.你的活动必须扩展FragmentActvitiy,而不是现在可能做的ordinery活动.

您可以在我撰写的博客文章中阅读有关如何向您的应用程序添加Google Map API V2的更多内容以及对erlIEar OS版本的支持：

Google Maps API V2

更新：

请确保以下3个选定的jar文件(红色)位于AndroID DependencIEs文件夹中(绿色)：

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