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我是一個noob嘗試開發一個基於位置的應用程序與谷歌的地方。我可以添加我的當前位置ovelay，但我無法弄清楚我做錯了什麼，所以我可以將位置api結果添加到我的覆蓋圖中。我的查詢在我的瀏覽器中成功，但不是我的應用程序，我得到了reQuest Deined。如果有人可以幫助它，將不勝感激。先謝謝你！如何添加Google Places API結果以覆蓋地圖？
主要活動：
package com.example.fdu;
public class FindDealer extends MapActivity implements LocationListener {
MapView finddealer;
long start;
long stop;
MyLocationOverlay compass;
MapController controller;
int x, y;
GeoPoint touchedPoint;
Drawable delta, zulu;
List<Overlay> overlayList;
LocationManager lm;
String towers;
int lat;
int lon;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.finddealer);
finddealer = (MapView) findViewById(R.id.mvFindDealer);
finddealer.setBuiltInZoomControls(true);
Touchy tango = new Touchy();
overlayList = finddealer.getOverlays();
overlayList.add(tango);
compass = new MyLocationOverlay(FindDealer.this, finddealer);
overlayList.add(compass);
controller = finddealer.getController();
GeoPoint point = new GeoPoint(51643234, 7848593);//<--Germany
controller.setZoom(12);
finddealer.invalidate();//<--New
delta = getResources().getDrawable(R.drawable.map_pin_48);
zulu= getResources().getDrawable(R.drawable.ic_launcher);
//placing pinpoint at location
lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria crit = new Criteria();
towers = lm.getBestProvider(crit, false);
Location location = lm.getLastKnownLocation(towers);
if(location != null){
lat = (int) (location.getLatitude()*1E6);
lon = (int) (location.getLongitude()*1E6);
GeoPoint ourLocation = new GeoPoint(lat, lon);
controller.animateTo(ourLocation);
OverlayItem oscar = new OverlayItem(ourLocation, "What's Up", "Homie");
CustomPinPoint custom = new CustomPinPoint(delta, FindDealer.this);
custom.InsertPinpoint(oscar);
overlayList.add(custom);
String googlelat = String.valueOf((int) (location.getLatitude()*1E6));
String googlelon = String.valueOf((int) (location.getLongitude()*1E6));
String googleplacesapi = "https://maps.googleapis.com/maps/api/place/search/json?location=" + googlelat + "," + googlelon + "&radius=50000&type=store&keyword=gold&sensor=false&key=My Key Redacted";
try {
JSONObject googleObject = StoresNearMe.getJSONfromURL(googleplacesapi);
JSONArray parsedGoogle = googleObject.getJSONArray("results");
if(parsedGoogle.equals(null)){
Toast.makeText(FindDealer.this, "Unable to locate tower", Toast.LENGTH_SHORT).show();
}else{
for (int i = 0; i < parsedGoogle.length(); i++) {
JSONObject parsedlocales = parsedGoogle.getJSONObject(i);
if (i == 0){
JSONObject geometrylocation = parsedlocales.getJSONObject("geometry").getJSONObject("location");
String lat0 = geometrylocation.getString("lat");
String lng0 = geometrylocation.getString("lng");
double overlaylat0 = Double.parseDouble(lat0);
double overlaylng0 = Double.parseDouble(lng0);
GeoPoint resultLocation0 = new GeoPoint((int) (overlaylat0), (int) (overlaylng0));
OverlayItem whiskey = new OverlayItem(resultLocation0, "What's Up", "Homie");
CustomPinPoint custom0 = new CustomPinPoint(zulu, FindDealer.this);
custom0.InsertPinpoint(whiskey);
overlayList.add(custom0);
break;
}
if (i == 1){
JSONObject geometrylocation = parsedlocales.getJSONObject("geometry").getJSONObject("location");
String lat1 = geometrylocation.getString("lat");
String lng1 = geometrylocation.getString("lng");
double overlaylat1 = Double.parseDouble(lat1);
double overlaylng1 = Double.parseDouble(lng1);
GeoPoint resultLocation1 = new GeoPoint((int) (overlaylat1),(int) (overlaylng1));
OverlayItem foxtrot = new OverlayItem(resultLocation1, "What's Up", "Homie");
CustomPinPoint custom1 = new CustomPinPoint(zulu, FindDealer.this);
custom1.InsertPinpoint(foxtrot);
overlayList.add(custom1);
break;
}
if (i == 2){
JSONObject geometrylocation = parsedlocales.getJSONObject("geometry").getJSONObject("location");
String lat2 = geometrylocation.getString("lat");
String lng2 = geometrylocation.getString("lng");
double overlaylat2 = Double.parseDouble(lat2);
double overlaylng2 = Double.parseDouble(lng2);
GeoPoint resultLocation2 = new GeoPoint((int) (overlaylat2),(int) (overlaylng2));
OverlayItem hotel = new OverlayItem(resultLocation2, "What's Up", "Homie");
CustomPinPoint custom2 = new CustomPinPoint(zulu, FindDealer.this);
custom2.InsertPinpoint(hotel);
overlayList.add(custom2);
break;
}
}
}
} catch (JSONException e) {
// Log.d("log_tag","JSON parsing error - Google Places Api:" + e.getMessage());
}
}else{
Toast.makeText(FindDealer.this, "Couldn't get provider", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
compass.disableCompass();
super.onPause();
lm.removeUpdates(this);
finish();
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
compass.disableCompass();
super.onResume();
lm.requestLocationUpdates(towers, 500, 1, this);
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
class Touchy extends Overlay{
public boolean onTouchEvent(MotionEvent echo, MapView mike){
if(echo.getAction()==MotionEvent.ACTION_DOWN){
start=echo.getEventTime();
x = (int) echo.getX();
y = (int) echo.getY();
touchedPoint = finddealer.getProjection().fromPixels(x, y);
}
if(echo.getAction()==MotionEvent.ACTION_UP){
stop=echo.getEventTime();
}
if (stop - start > 1500) {
AlertDialog alert = new AlertDialog.Builder(FindDealer.this).create();
alert.setTitle("Pick an Option");
alert.setMessage("Hag");
alert.setButton("place a pinpoint", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
OverlayItem oscar = new OverlayItem(touchedPoint, "What's Up", "Homie");
CustomPinPoint custom = new CustomPinPoint(zulu, FindDealer.this);
custom.InsertPinpoint(oscar);
overlayList.add(custom);
}
});
alert.setButton2("Get Address", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Geocoder geocoder = new Geocoder(getBaseContext(), Locale.getDefault());
try{
List<Address> address = geocoder.getFromLocation(touchedPoint.getLatitudeE6()/1E6 , touchedPoint.getLongitudeE6()/1E6, 1);
if (address.size() > 0){
String display = "";
for (int i = 0; i < address.get(0).getMaxAddressLineIndex(); i++){
display += address.get(0).getAddressLine(i) + "\n";
}
Toast yankee = Toast.makeText(getBaseContext(), display, Toast.LENGTH_LONG);
yankee.show();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
}
}
});
alert.setButton3("Toggle View", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
if (finddealer.isSatellite()){
finddealer.setSatellite(false);
finddealer.setStreetView(true);
}else{
finddealer.setSatellite(true);
finddealer.setStreetView(false);
}
}
});
alert.show();
return true;
}
return false;
}
}
@Override
public void onLocationChanged(Location l) {
// TODO Auto-generated method stub
lat = (int) (l.getLatitude()* 1E6);
lon = (int) (l.getLongitude()* 1E6);
GeoPoint ourLocation = new GeoPoint(lat, lon);
OverlayItem oscar = new OverlayItem(ourLocation, "What's Up", "Homie");
CustomPinPoint custom = new CustomPinPoint(delta, FindDealer.this);
custom.InsertPinpoint(oscar);
overlayList.add(custom);
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),"Gps Disabled", Toast.LENGTH_SHORT).show();//<--New
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),"Gps Enabled", Toast.LENGTH_SHORT).show();//<--New
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
Toast.makeText(FindDealer.this, "StatusChanged" +provider, Toast.LENGTH_SHORT).show();
}
}
房屋靠近我
public class StoresNearMe {
public static JSONObject getJSONfromURL(String url){
InputStream is = null;
String result = "";
JSONObject googleObject = null;
//http post
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}catch(Exception e){
Log.e("log_tag", "Error in http connection "+e.toString());
}
//convert response to string
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
try{
googleObject = new JSONObject(result);
}catch(JSONException e){
Log.e("log_tag", "Error parsing data "+e.toString());
}
return googleObject;
}
}
CustomPinPoint的Java
public class CustomPinPoint extends ItemizedOverlay<OverlayItem> {
private ArrayList<OverlayItem> pinpoints = new ArrayList<OverlayItem>();
private Context charlie;
public CustomPinPoint(Drawable defaultMarker) {
super(boundCenter(defaultMarker));
// TODO Auto-generated constructor stub
}
public CustomPinPoint(Drawable mike, Context context) {
// TODO Auto-generated constructor stub
this(mike);
charlie = context;
}
@Override
protected OverlayItem createItem(int i) {
// TODO Auto-generated method stub
return pinpoints.get(i);
}
@Override
public int size() {
// TODO Auto-generated method stub
return pinpoints.size();
}
public void InsertPinpoint(OverlayItem india){
pinpoints.add(india);
this.populate();
}
}
您是否收到任何錯誤？ JSON解析錯誤通常在logcat中以橙色顯示，並且不會導致您的應用粉碎，因此很容易錯過。 – 2012-08-03 01:59:38
@Lablabla沒有錯誤，唯一的警告是關於CursorWrapper ...遊標沒有事先關閉而終結。我得到了我的查詢在應用程序中工作，但它不會添加到覆蓋。我很難過。 – 2012-08-03 07:43:38