我正在尝试在我的谷歌地图上显示路线...我正在开发一个出租车预订应用程序，其中我得到两个值＆＃34;来自＆＃34;和＆＃34; To＆＃34;来自用户，他们想去哪里？
但我正面临着在地图中添加路线的问题......当我提交价值时，我强行关闭......
这是我的编码信息......
快照镜头上的Dialogue.java类
public class Dialoge extends Activity{
Button b;
EditText e1,e2;
String addressfrom,addressto;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.dia);
e1=(EditText)findViewById(R.id.from);
e2=(EditText)findViewById(R.id.To);
b=(Button)findViewById(R.id.Submit);
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(v==b){
addressfrom = e1.getText().toString();
addressto = e2.getText().toString();
Intent i = new Intent(Dialoge.this,RideNow.class);
i.putExtra("from", addressfrom);
i.putExtra("to", addressto);
startActivity(i);
/*String format = "geo:0,0?q="+addressto;
Uri uri = Uri.parse(format);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);*/
}
}
});
}
}
我的RideNow.java作业显示路线并在按下提交按钮时被调用
public class RideNow extends Activity {
GoogleMap mMap;
String fromString,toString,url,polyline;
double latitude,longitude,latitudeto,longitudeto;
ProgressDialog pd;
LatLng l,l2;
double latt;
List<HashMap<String, String>> path = new ArrayList<HashMap<String, String>>();
List<List<HashMap<String, String>>> routes = new ArrayList<List<HashMap<String,String>>>() ;
List<LatLng> list = null;
PolylineOptions p = null;
ArrayList<LatLng> points = null;
TextView t1,t2;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.ridenow);
t1 = (TextView)findViewById(R.id.text1);
t2 = (TextView)findViewById(R.id.text2);
MapFragment m = (MapFragment)getFragmentManager().findFragmentById(R.id.fragment1);
mMap = m.getMap();
//mv.setBuiltInZoomControls(true);
ParseAnalytics.trackAppOpened(getIntent());
Intent i = getIntent();
Bundle b = i.getExtras();
fromString = b.getString("from");
toString = b.getString("to");
Geocoder geoCoder = new Geocoder(RideNow.this, Locale.getDefault());
try {
//########## Address From ###########
List<Address> addressesfrom =
geoCoder.getFromLocationName(fromString, 1);
if (addressesfrom.size() > 0) {
latitude = addressesfrom.get(0).getLatitude();
longitude =addressesfrom.get(0).getLongitude(); }
//######### Address To ##########
List<Address> addressesto =
geoCoder.getFromLocationName(toString, 1);
if (addressesto.size() > 0) {
latitudeto = addressesto.get(0).getLatitude();
longitudeto =addressesto.get(0).getLongitude(); }
l = new LatLng(latitude, longitude);
l2 = new LatLng(latitudeto, longitudeto);
url = getDirectionsUrl(l, l2);
t1.setText(""+latitude+","+longitude);
t2.setText(""+latitudeto+","+longitudeto);
new json().execute();
MarkerOptions marker = new MarkerOptions().position(l).title(""+fromString);
mMap.addMarker(marker);
MarkerOptions markerto = new MarkerOptions().position(new LatLng(latitudeto, longitudeto)).title(""+toString);
CameraPosition cameraPositionto = new CameraPosition.Builder().target(new LatLng(latitudeto, longitudeto)).bearing(45).tilt(90).zoom(mMap.getCameraPosition().zoom).build();
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPositionto));
mMap.addMarker(markerto);
mMap.addPolyline(p);
} catch (IOException e) { // TODO Auto-generated catch block
e.printStackTrace(); }
}
private String getDirectionsUrl(LatLng origin,LatLng dest){
// Origin of route
String str_origin = "origin="+origin.latitude+","+origin.longitude;
// Destination of route
String str_dest = "destination="+dest.latitude+","+dest.longitude;
// Sensor enabled
String sensor = "sensor=false";
// Building the parameters to the web service
String parameters = str_origin+"&"+str_dest+"&"+sensor;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/directions/"+output+"?"+parameters;
return url;
}
public class json extends AsyncTask<Void, Void, Void>{
@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
ServiceHandler sh = new ServiceHandler();
String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
if(jsonStr!=null){
try{
JSONObject jobj = new JSONObject(jsonStr);
JSONArray jroute = jobj.getJSONArray("routes");
JSONObject j = jroute.getJSONObject(0);
JSONObject jbound = j.getJSONObject("bounds");
JSONObject jn = jbound.getJSONObject("northeast");
String d = jn.getString("lat");
JSONArray jlegs = j.getJSONArray("legs");
JSONObject jobjj = jlegs.getJSONObject(0);
JSONObject jduration =jobjj.getJSONObject("duration");
JSONArray steps = jobjj.getJSONArray("steps");
JSONObject jsteps = steps.getJSONObject(0);
JSONObject poly = jsteps.getJSONObject("polyline");
polyline = poly.getString("points");
list = decodePoly(polyline);
for(int l=0;l<list.size();l++){
HashMap<String, String> hm = new HashMap<String, String>();
hm.put("lat", Double.toString((list.get(l)).latitude) );
hm.put("lng", Double.toString((list.get(l)).longitude) );
path.add(hm);
}
points = new ArrayList<LatLng>();
for(int m=0;m<path.size();m++){
HashMap<String,String> point = path.get(m);
double lat = Double.parseDouble(point.get("lat"));
double lng = Double.parseDouble(point.get("lng"));
LatLng position = new LatLng(lat, lng);
points.add(position);
}
//p.addAll(points);
}catch(Exception e){}
}
return null;
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
pd = new ProgressDialog(RideNow.this);
pd.setTitle("Please Wait....");
pd.setMessage("Wait");
pd.setCancelable(false);
pd.show();
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
pd.dismiss();
//Toast.makeText(getApplicationContext()," ("+polyline+")",Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(), ""+latt, Toast.LENGTH_LONG).show();
p.addAll(points);
}
}
private List<LatLng> decodePoly(String encoded) {
List<LatLng> poly = new ArrayList<LatLng>();
int index = 0, len = encoded.length();
int lat = 0, lng = 0;
while (index < len) {
int b, shift = 0, result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lat += dlat;
shift = 0;
result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lng += dlng;
LatLng p = new LatLng((((double) lat / 1E5)),
(((double) lng / 1E5)));
poly.add(p);
}
return poly;
}
}
我的Logcat
02-23 17:44:14.930: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:15.930: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:16.140: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:17.140: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:17.350: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:18.350: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:18.560: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:19.560: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:19.770: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:20.770: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:20.980: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:21.980: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:22.190: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:23.190: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:23.400: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:24.400: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:24.610: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:25.610: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:25.690: D/dalvikvm(950): GC_CONCURRENT freed 396K, 55% free 2671K/5831K, external 716K/1038K, paused 0ms+0ms
02-23 17:44:25.820: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:26.820: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:27.030: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:28.030: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:28.240: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:29.240: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:29.450: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:30.450: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:30.660: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:31.660: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:31.870: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:32.870: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:33.080: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:34.080: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:34.290: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:35.290: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:35.500: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:36.500: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:36.710: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:37.710: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:37.920: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:38.920: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:39.130: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:40.130: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:40.340: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:41.340: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:41.550: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:42.550: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:42.760: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:42.770: D/dalvikvm(2366): GC_CONCURRENT freed 384K, 54% free 2682K/5767K, external 716K/1038K, paused 0ms+0ms
02-23 17:44:43.760: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:43.970: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:44.970: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:45.180: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:46.180: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:46.390: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:47.390: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:47.600: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:48.600: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:48.810: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:49.810: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:50.020: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:51.020: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:51.230: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:52.230: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:52.440: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:53.440: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:53.650: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
02-23 17:44:54.650: W/PGA(521): ctlSwapBuffers(133): Host Connect failed, err = -1(0xffffffff)
02-23 17:44:54.860: E/PGA(521): PgaSocketWriteAllHdipc: hd_ipc_send() failed
答案 0 :(得分：0)
您的logcat显示这不是代码错误，而是PC上的模拟器错误。如果您在Bluestack Android Emulator上运行此代码，则可能会在logcat中出现此错误。
唯一可用的解决方案是退出Bluestacks（总是在后台运行），问题将解决!!