Google지도 V2 API 지침 : 오류는 발생하지 않지만 제대로 작동하지 않습니다.

Question

Android에서 새로 생겼습니다. MAP 프로젝트를 만들려고 노력 중입니다 ... 일부 블로그에서 코드를 찾았습니다. 작동하는 방식으로 편집하지만, 출력에서는 계속 progressDialog를 계속 진행합니다. 끝내지 마십시오

이것은 있습니다. 내 코드

public class LokasiActivity extends FragmentActivity{ 

public static final String USER_CURRENT_LAT = "user_current_lat"; 
public static final String USER_CURRENT_LONG = "user_current_long"; 
public static final String DESTINATION_LAT = "destination_lat"; 
public static final String DESTINATION_LONG = "destination_long"; 
public static final String DIRECTIONS_MODE = "directions_mode"; 
private static final LatLng AMSTERDAM = new LatLng(52.37518, 4.895439); 
private static final LatLng PARIS = new LatLng(48.856132, 2.352448); 
private Exception exception; 
private ProgressDialog progressDialog; 
private GoogleMap googleMap; 
Button btnjalur; 
ArrayList<LatLng> directionPoints; 
SupportMapFragment fragment; 
private Polyline newPolyline; 
private int width, height; 
private LatLngBounds latlngBounds; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.lokasi_layout); 

    btnjalur = (Button)findViewById(R.id.btnJalur); 

    getSreenDimanstions(); 

     fragment = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)); 
     googleMap = fragment.getMap(); 

    btnjalur.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View arg0) { 

      findDirections(AMSTERDAM.latitude, AMSTERDAM.longitude, PARIS.latitude, PARIS.longitude, LokasiDirection.MODE_DRIVING); 

     } 
    }); 
} 


public void handleGetDirectionsResult() { 
    PolylineOptions rectLine = new PolylineOptions().width(5).color(Color.RED); 

    for(int i = 0 ; i < directionPoints.size() ; i++) 
    {   
     rectLine.add(directionPoints.get(i)); 
    } 
    if (newPolyline != null) 
    { 
     newPolyline.remove(); 
    } 
    newPolyline = googleMap.addPolyline(rectLine); 

     latlngBounds = createLatLngBoundsObject(AMSTERDAM, PARIS); 
     googleMap.animateCamera(CameraUpdateFactory.newLatLngBounds(latlngBounds, width, height, 150)); 


} 

private void getSreenDimanstions() 
{ 
    Display display = getWindowManager().getDefaultDisplay(); 
    width = display.getWidth(); 
    height = display.getHeight(); 
} 

private LatLngBounds createLatLngBoundsObject(LatLng firstLocation, LatLng secondLocation) 
{ 
    if (firstLocation != null && secondLocation != null) 
    { 
     LatLngBounds.Builder builder = new LatLngBounds.Builder();  
     builder.include(firstLocation).include(secondLocation); 

     return builder.build(); 
    } 
    return null; 
} 

public class GetDirectionsAsyncTask extends AsyncTask<Map<String, String>, Object, ArrayList<LatLng>> 
{ 

    public void onPreExecute() 
    { 
     progressDialog = new ProgressDialog(LokasiActivity.this); 
     progressDialog.setMessage("Calculating directions"); 
     progressDialog.show(); 
    } 


    @Override 
    protected ArrayList<LatLng> doInBackground(Map<String, String>... params) 
    { 
     Map<String, String> paramMap = params[0]; 
     try 
     { 
      LatLng fromPosition = new LatLng(Double.valueOf(paramMap.get(USER_CURRENT_LAT)) , Double.valueOf(paramMap.get(USER_CURRENT_LONG))); 
      LatLng toPosition = new LatLng(Double.valueOf(paramMap.get(DESTINATION_LAT)) , Double.valueOf(paramMap.get(DESTINATION_LONG))); 
      LokasiDirection md = new LokasiDirection(); 
      Document doc = md.getDocument(fromPosition, toPosition, paramMap.get(DIRECTIONS_MODE)); 
      directionPoints = md.getDirection(doc); 
      return directionPoints; 
     } 
     catch (Exception e) 
     { 
      exception = e; 
      return null; 
     } 
    } 

    public void onPostExecute() 
    { 
     progressDialog.dismiss(); 
     if (exception == null) 
     { 
      handleGetDirectionsResult(); 
     } 
     else 
     { 
      processException(); 
     } 
    } 


    private void processException() 
    { 
     Toast.makeText(LokasiActivity.this, "Error retriving data", 3000).show(); 
    } 
} 

public void findDirections(double fromPositionDoubleLat, double fromPositionDoubleLong, double toPositionDoubleLat, double toPositionDoubleLong, String mode) 
{ 
    Map<String, String> resultdestination = new HashMap<String, String>(); 
    resultdestination.put(USER_CURRENT_LAT, String.valueOf(fromPositionDoubleLat)); 
    resultdestination.put(USER_CURRENT_LONG, String.valueOf(fromPositionDoubleLong)); 
    resultdestination.put(DESTINATION_LAT, String.valueOf(toPositionDoubleLat)); 
    resultdestination.put(DESTINATION_LONG, String.valueOf(toPositionDoubleLong)); 
    resultdestination.put(DIRECTIONS_MODE, mode); 

    new GetDirectionsAsyncTask().execute(resultdestination); 
} 
@Override 
protected void onResume() { 
    super.onResume(); 
    latlngBounds = createLatLngBoundsObject(AMSTERDAM, PARIS); 
    googleMap.moveCamera(CameraUpdateFactory.newLatLngBounds(latlngBounds, width, height, 150)); 


} 

}

내 코드에 문제가 .... u는 그 실현 경우에 저를 알려주세요 ..

Answer 1

출력 그냥해서 ProgressDialog 일을 계속 ... 끝이 없을

진행 대화 상자를 닫지 마십시오. onPostExecute()의 코드는 메소드 서명이 잘못되었으므로 실행되지 않습니다.

변경

public void onPostExecute() 

@Override 주석이 컴파일러를 할 수

@Override 
public void onPostExecute(ArrayList<LatLng> result) 

에 당신이하지 않은 경우 오류를 방출하여 메서드를 재정의 사실인지 확인하세요.