如何在Android中显示地图中的实际道路路线驾驶模式
Eli*_*eth 7 java android google-maps driving-directions
我有一个Web应用程序,我们在其中添加lat和lng,在Web中它在地图中清楚地显示了行车路线.我已经使用json向android发送相同的详细信息,包括api,lat和经度.但在Android应用程序中,地图没有显示正确的路径.
这是我的地图活动
public class MapsActivity extends AppCompatActivity implements OnMapReadyCallback {
private GoogleMap mMap;
LatLng latLng;
private SharedPreferenceHelper sharedPreferenceHelper;
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
MyAlertDialogFragment newFragment;
public final String BEFORE_BUS_POSTION = "BEFORE_BUS_POSTION";
public final String AFTER_BUS_POSTION = "AFTER_BUS_POSTION";
public final String CURRENT_BUS_POSTION = "CURRENT_BUS_POSTION";
public final String GREEN_COLOR_CODE = "#228b22";
public final String ORANGE_COLOR_CODE = "#C56E00";
private String[] mNavigationDrawerItemTitles;
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
Toolbar toolbar;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
android.support.v7.app.ActionBarDrawerToggle mDrawerToggle;
private ProgressDialog progress;
int count = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
mTitle = mDrawerTitle = getTitle();
mNavigationDrawerItemTitles= getResources().getStringArray(R.array.navigation_drawer_items_array);
....
sharedPreferenceHelper = new SharedPreferenceHelper(getApplicationContext());
if (!sharedPreferenceHelper.getBooleanSharedPreferenceName("isRegistred")) {
RegisterGCM();
}
sharedPreferenceHelper.WriteBooleanPreference("notification", true);
/*Sharedpreference check wheather app is running for firsttime.*/
if (!sharedPreferenceHelper.getBooleanSharedPreferenceName("isfirsttime")) {
sharedPreferenceHelper.WriteBooleanPreference("isfirsttime", true);
sharedPreferenceHelper.WriteStringPreference("email", getIntent().getStringExtra("email"));
sharedPreferenceHelper.WriteBooleanPreference("ringtone", true);
sharedPreferenceHelper.WriteBooleanPreference("notification", true);
}
FragmentManager fm = getSupportFragmentManager();
SupportMapFragment supportMapFragment = SupportMapFragment.newInstance();
fm.beginTransaction().replace(R.id.content_frame, supportMapFragment).commit();
supportMapFragment.getMapAsync(this);
}
private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
}
private void selectItem(int position) {
AboutFragment aboutfragment = null;
InfoFragment infofragment = null;
switch (position) {
case 0:
startActivity(new Intent(this, MapsActivity.class));
break;
case 1:
aboutfragment = new AboutFragment();
break;
case 2:
infofragment= new InfoFragment();
break;
default:
break;
}
if (aboutfragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, aboutfragment).commit();
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(mNavigationDrawerItemTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}else if (infofragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, infofragment).commit();
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(mNavigationDrawerItemTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
Log.e("MapActivity", "Error in creating fragment");
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getSupportActionBar().setTitle(mTitle);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
void setupToolbar(){
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
}
void setupDrawerToggle(){
mDrawerToggle = new android.support.v7.app.ActionBarDrawerToggle(this,mDrawerLayout,toolbar,R.string.app_name, R.string.app_name);
//This is necessary to change the icon of the Drawer Toggle upon state change.
mDrawerToggle.syncState();
}
private void RegisterGCM() {
Log.i("HomeActivity", "This device is not supported.");
if (checkPlayServices()) {
// Start IntentService to register this application with GCM.
Intent intent = new Intent(this, RegistrationIntentService.class);
startService(intent);
}
}
private boolean checkPlayServices() {
GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
int resultCode = apiAvailability.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (apiAvailability.isUserResolvableError(resultCode)) {
apiAvailability.getErrorDialog(this, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST)
.show();
} else {
if(sharedPreferenceHelper.getBooleanSharedPreferenceName("googleplayservice")) {
showDialog();
}
Log.i("HomeActivity", "This device is not supported.");
}
return false;
}
return true;
}
void showDialog() {
newFragment = MyAlertDialogFragment.newInstance(R.string.google_play_service_not_found);
newFragment.show(getSupportFragmentManager(), "dialog");
}
public static class MyAlertDialogFragment extends DialogFragment {
AlertDialog alert;
public static MyAlertDialogFragment newInstance(int title) {
MyAlertDialogFragment frag = new MyAlertDialogFragment();
Bundle args = new Bundle();
args.putInt("title", title);
frag.setArguments(args);
return frag;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
int title = getArguments().getInt("title");
return new AlertDialog.Builder(getActivity())
.setIcon(R.drawable.ic_info_black_24dp)
.setTitle(title)
.setMessage(R.string.google_play_service_not_found_message)
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
((MapsActivity)getActivity()).doPositiveClick();
}
}
)
.setNegativeButton("Don't show again",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
((MapsActivity)getActivity()).doNegativeClick();
}
}
).create();
}
}
public void doPositiveClick() {
Log.i("FragmentAlertDialog", "Positive click!");
newFragment.dismiss();
}
public void doNegativeClick() {
newFragment.dismiss();
sharedPreferenceHelper.WriteBooleanPreference("googleplayservice", true);
Log.i("FragmentAlertDialog", "Negative click!");
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
progress=new ProgressDialog(this);
progress.setMessage("Map Loading");
progress.show();
progress.setCanceledOnTouchOutside(false);
final Handler ha=new Handler();
ha.postDelayed(new Runnable() {
@Override
public void run() {
//call function
setLocationFromServerWithRoute();
ha.postDelayed(this, 2000);
}
}, 10000);
// Add a marker in Sydney and move the camera
/* LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));*/
}
private void setLocationFromServerWithRoute() {
RequestQueue queue = Volley.newRequestQueue(this);
String email = new SharedPreferenceHelper(getApplicationContext()).getStringSharedPreferenceName("email");
String url = LoginActivity.URL+ "read.jsp?email="+email;
Log.d("email",email);
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>(){
@Override
public void onResponse(String response) {
JSONArray array = new JSONArray();
Log.d("Response 10 secs",response);
try {
array = new JSONArray(response);
mMap.clear();
for(int n = 0; n < array.length()-1; n++) {
JSONObject jsonObject = array.getJSONObject(n);
JSONObject jsonObjectNext = array.getJSONObject(n+1);
LatLng latLng = new LatLng(jsonObject.getDouble("latitude"), jsonObject.getDouble("longitude"));
LatLng latLngNext = new LatLng(jsonObjectNext.getDouble("latitude"), jsonObjectNext.getDouble("longitude"));
String address = jsonObject.getString("routename");
Log.d("Response",response);
if(jsonObjectNext.getString("busPosition").equals(CURRENT_BUS_POSTION) && n < array.length()-2 ) {
jsonObjectNext = array.getJSONObject(n+2);
latLngNext = new LatLng(jsonObjectNext.getDouble("latitude"), jsonObjectNext.getDouble("longitude"));
} if(jsonObject.getString("busPosition").equals(CURRENT_BUS_POSTION)){
mMap.addMarker(new MarkerOptions().position(latLng).title("" + address)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_blue)));
Log.d("CURRENT_BUS_POSTION","REACHED");
}else if(jsonObject.getString("busPosition").equals(AFTER_BUS_POSTION)){
if(jsonObject.getBoolean("isBusStop")) {
mMap.addMarker(new MarkerOptions().position(latLng).title("" + address)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_orange)));
}
mMap.addPolyline(new PolylineOptions()
.add(latLng,latLngNext)
.width(5)
.color(Color.parseColor(ORANGE_COLOR_CODE)));
}else if(jsonObject.getString("busPosition").equals(BEFORE_BUS_POSTION)){
if(jsonObject.getBoolean("isBusStop")) {
mMap.addMarker(new MarkerOptions().position(latLng).title("" + address)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_green)));
}
mMap.addPolyline(new PolylineOptions()
.add(latLng,latLngNext)
.width(5)
.color(Color.parseColor(GREEN_COLOR_CODE)));
}
}
JSONObject jsonObject = array.getJSONObject(array.length() - 1);
LatLng latLng = new LatLng(jsonObject.getDouble("latitude"), jsonObject.getDouble("longitude"));
String address = jsonObject.getString("routename");
if (jsonObject.getString("busPosition").equals(CURRENT_BUS_POSTION)) {
mMap.addMarker(new MarkerOptions().position(latLng).title("" + address)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_blue)));
} else if (jsonObject.getString("busPosition").equals(AFTER_BUS_POSTION) && jsonObject.getBoolean("isBusStop")) {
mMap.addMarker(new MarkerOptions().position(latLng).title("" + address)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_orange)));
} else if (jsonObject.getString("busPosition").equals(BEFORE_BUS_POSTION) && jsonObject.getBoolean("isBusStop")) {
mMap.addMarker(new MarkerOptions().position(latLng).title("" + address)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_green)));
}
;
if(count < 2) {
Log.v("count",""+count);
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomTo(16.0f));
if(count == 1){
progress.hide();
}
}
count ++;
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(),"Error:"+error.getMessage(),Toast.LENGTH_SHORT).show();
}
});
queue.add(stringRequest);
}
private void setLocationFromServer() {
RequestQueue queue = Volley.newRequestQueue(this);
String email = new SharedPreferenceHelper(getApplicationContext()).getStringSharedPreferenceName("email");
String url = LoginActivity.URL+ "read.jsp?email="+email;
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>(){
@Override
public void onResponse(String response) {
Toast.makeText(getApplicationContext(),"Response:"+response,Toast.LENGTH_SHORT).show();
Log log = null;
log.v("response",""+response);
JSONObject jsonObject = null;
Double param1 = 0.0;
Double param2 = 0.0;
Long datecreated = null;
String dateCreated = null;
Date dateCREATED = null, twoHOURDate;
Calendar cal = Calendar.getInstance();
cal.add(Calendar.HOUR, -2);
Date twoHourBack = cal.getTime();
Log.v("twoHourBack::", "" + twoHourBack);
Toast.makeText(getApplicationContext(),"+twoHourBack:"+twoHourBack,Toast.LENGTH_SHORT).show();
JSONObject jsonObjectData = new JSONObject();
JSONArray array = new JSONArray();
try {
jsonObjectData = new JSONObject(response);
array = jsonObjectData.getJSONArray("route");
} catch (JSONException e) {
e.printStackTrace();
}
ArrayList<BusRoute> arrayList = new ArrayList();
for(int n = 0; n < array.length(); n++) {
try {
JSONObject object = array.getJSONObject(n);
BusRoute busRoute = new BusRoute();
busRoute.setId(object.getString("routeID"));
busRoute.setLatitude(object.getString("latitude"));
busRoute.setLongitude(object.getString("longitude"));
busRoute.setDate(object.getString("dateCreated"));
busRoute.setPlaceWeight(object.getString("busRouteweight"));
busRoute.setPlaceId(object.getString("routename"));
arrayList.add(busRoute);
} catch (JSONException e) {
e.printStackTrace();
}
}
Collections.sort(arrayList, new Comparator<BusRoute>() {
@Override
public int compare(BusRoute o1, BusRoute o2) {
return o1.getDate().compareTo(o2.getDate());
}
});
boolean isBusLocationPassed = false;
for(int n = 0; n < arrayList.size(); n++)
{
try {
BusRoute object = arrayList.get(n);
param1 = Double.parseDouble(object.getLatitude());
param2 = Double.parseDouble(object.getLongitude());
latLng = new LatLng(param1, param2);
Geocoder geocoder = new Geocoder(MapsActivity.this, Locale.getDefault());
List<Address> addresses = null;
try {
addresses = geocoder.getFromLocation(param1, param2, 1);
} catch (Exception e) {
e.printStackTrace();
}
String cityName = addresses.get(0).getAddressLine(0);
String stateName = addresses.get(0).getAddressLine(1);
String countryName = addresses.get(0).getAddressLine(2);
log.v("cityName", "" + cityName);
log.v("lat", "" + param1);
log.v("log", "" + param2);
BusRoute objectnext = null;
if( n < arrayList.size()-1 ) {
objectnext = arrayList.get(n + 1);
}
if(object.getId().trim() .equals(jsonObjectData.getString("prevStop").trim())){
Polyline line = mMap.addPolyline(new PolylineOptions()
.add(new LatLng(Double.parseDouble(object.getLatitude()), Double.parseDouble(object.getLongitude())), new LatLng(jsonObjectData.getDouble("latitude"), jsonObjectData.getDouble("Longitude")))
.width(5)
.color(Color.GREEN));
if( objectnext != null ) {
Polyline line2 = mMap.addPolyline(new PolylineOptions()
.add(new LatLng(jsonObjectData.getDouble("Lattitude"), jsonObjectData.getDouble("Longitude")), new LatLng(Double.parseDouble(objectnext.getLatitude()), Double.parseDouble(objectnext.getLongitude())))
.width(5)
.color(Color.parseColor("#C56E00")));
}
log.v("done", "1 " + jsonObjectData.getString("nextStop"));
LatLng latLngCurrent = new LatLng(jsonObjectData.getDouble("Lattitude"), jsonObjectData.getDouble("Longitude"));
mMap.addMarker(new MarkerOptions().position(latLngCurrent).title("" + cityName + "" + stateName + "" + countryName)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_blue)));
mMap.addMarker(new MarkerOptions().position(latLng).title("" + cityName + "" + stateName + "" + countryName)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_green)));
isBusLocationPassed = true;
}else if(isBusLocationPassed){
if( objectnext != null ) {
Polyline line = mMap.addPolyline(new PolylineOptions()
.add(new LatLng(Double.parseDouble(object.getLatitude()), Double.parseDouble(object.getLongitude())), new LatLng(Double.parseDouble(objectnext.getLatitude()), Double.parseDouble(objectnext.getLongitude())))
.width(5)
.color(Color.parseColor("#C56E00")));
}
log.v("done", "2 " + jsonObjectData.getString("nextStop"));
mMap.addMarker(new MarkerOptions().position(latLng).title("" + cityName + "" + stateName + "" + countryName)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_orange)));
}else{
if( objectnext != null ) {
Polyline line = mMap.addPolyline(new PolylineOptions()
.add(new LatLng(Double.parseDouble(object.getLatitude()), Double.parseDouble(object.getLongitude())), new LatLng(Double.parseDouble(objectnext.getLatitude()), Double.parseDouble(objectnext.getLongitude())))
.width(5)
.color(Color.GREEN));
}
log.v("done", "3 " + jsonObjectData.getString("nextStop"));
mMap.addMarker(new MarkerOptions().position(latLng).title("" + cityName + "" + stateName + "" + countryName)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus_green)));
}
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomTo(10.0f));
} catch (JSONException e) {
e.printStackTrace();
}
}
Toast.makeText(getApplicationContext(), "Location received, Latitude:" + param1 + " Longitude:" + param2, Toast.LENGTH_SHORT).show();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(),"Error:"+error.getMessage(),Toast.LENGTH_SHORT).show();
}
});
queue.add(stringRequest);
}
}
任何帮助？
更新:
在这两种情况下,我都收到错误:OVER_QUERY_LIMIT
任何人都有这个???
这就是我如何进入android map ..我希望他们在实际的道路上显示.
在网站上,它显示正确...
错误
\n\n超过查询限制意味着您每秒对 API 执行的查询过多或者超出了配额。
\n\n为了进一步帮助您，我需要详细了解您正在使用哪些 API，因为我不知道我假设您正在使用 Google Maps Roads API，它确实为您提供了您想要的路径。
\n\n使用限制
\n\n每个 API 都有使用限制。对于 Roads API，您每秒只能进行 50 次查询 (QPS)，并且还有其他限制。要查看有关此 API 的限制列表，我鼓励您检查以下链接：
\n\n\n\n我没有使用 Roads API！
\n\n如果您不使用 Roads API，您必须找到您正在使用的 API 及其限制。以下是 Google 地图提供的所有 API 的列表：
\n\n\n\n好吧，我知道我正在使用哪个 API，而且我已经达到了极限。现在怎么办？
\n\n一旦弄清楚前面的步骤，您通常有两个主要选择来避免达到限制：
\n\n- \n
- 缓存信息 \n
- 限制请求 \n
每个解决方案都是一个独立的世界，但我将为您提供一些有关概念的说明，以便您可以更轻松地遵循它们：
\n\n\n\n我特别推荐最后一个链接，它指向官方文档并涵盖缓存和限制。
\n\n希望能帮助到你 ！
\n\n\n\n
PS：我也对这个问题投了赞成票，但没有看到有人会反对它的真正原因。不过，我确实建议您添加一个最小工作示例，而不是发布所有代码，这会让更多的人愿意帮助您。
\n\n在 Android 案例中，我通常建议从头开始创建一个尽可能简单的项目来复制您的问题。
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