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Android Studio GPS connect return result from web server

I am trying to connect to a webserver and take specific information from a JSON format and display it in a text box on my emulator/Android Phone, however i cant seem to get any result other than error.
here is my current code
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
StrictMode.ThreadPolicy policy = new SictMode.ThreadPolicy.Builder().permitAll().build();
setThreadPolicy(policy);
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{
"android.permission.ACCESS_FINE_LOCATION",
"android.permission.ACCESS_COARSE_LOCATION"}, 1);
} else {
LocationManager lm = (LocationManager) getSystemService(LOCATION_SERVICE);
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new LocationListener() {
#Override
public void onLocationChanged(Location location) {
double lng = location.getLongitude();
double lat = location.getLatitude();
((TextView) findViewById(R.id.latTextView)).setText("" + lat);
((TextView) findViewById(R.id.lngTextView)).setText("" + lng);
//String url = "http://zebedee.kriswelsh.com:8080/stations?lat=" + lat + "&lng=" + lng;
String url = "http://zebedee.kriswelsh.com:8080/stations?lat=53.4355&lng=3.0508";
search(url);
}
#Override
public void onStatusChanged(String s, int i, Bundle bundle) {
}
#Override
public void onProviderEnabled(String s) {
}
#Override
public void onProviderDisabled(String s) {
}
});
}
}
public String search(String url) {
ArrayList<String> listItems = new ArrayList<String>();
String resultsOut = "";
try {
URL fhr = new URL(url);
URLConnection tc = fhr.openConnection();
InputStreamReader isr = new InputStreamReader(tc.getInputStream());
BufferedReader in = new BufferedReader(isr);
String line;
while ((line = in.readLine()) != null) {
JSONArray ja = new JSONArray(line);
for (int i = 0; i < ja.length(); i++) {
JSONObject jo = (JSONObject) ja.get(i);
listItems.add(jo.getString("StationName"));
listItems.add(jo.getString("Lattitude"));
}
}
for(String s : listItems)
{
resultsOut =resultsOut.concat(s+ "\n");
}
return resultsOut;
}
catch (MalformedURLException e ){e.printStackTrace();}
catch (IOException e){e.printStackTrace();}
catch (JSONException e){e.printStackTrace();}
return "error";
}
public void onClick (View v) {
TextView results = (TextView) findViewById(R.id.results);
results.setText(search(String.valueOf(v)));
}
#Override
public void onStop() {
super.onStop();
}
}

How to access response value outside onResponse method in android

I am working on a android project. I got the response from google api and parsed the json. But i want to return the value outside of onResponse method which seems to be impossible for me now. Below is my code, I have already seen this answer here. But i want this value outside of this async method. Is it possible to access this value.
UPDATE - I have updated my code for more details. This is my full activity class. You can see what i want to achieve. Please help me how i can access value returned by Volley onResponse in method get_time_to_travel, inside method parseJson. This is really killing me now. My first android project and i am stuck here from last two days.
Any help on this would be appreciated.
public class MainActivity extends AppCompatActivity {
private RecyclerView recyclerView;
private LinearLayoutManager linearLayoutManager;
private CustomAdapter adapter;
private List<UserData> userData;
private LocationManager locationManager;
private LocationListener locationListener;
String origin, mode = "driving";
private String API = "APIKey";
TextView textView;
RequestQueue requestQueue;
RequestQueue requestQueue1;
String url = "https://url/users";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
recyclerView.setHasFixedSize(true);
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
locationListener = new LocationListener() {
#Override
public void onLocationChanged(Location location) {
double lat = location.getLatitude();
double lng = location.getLongitude();
origin = String.valueOf(lat)+","+String.valueOf(lng);
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
#Override
public void onProviderEnabled(String provider) {
}
#Override
public void onProviderDisabled(String provider) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
};
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.INTERNET
}, 10);
}
return;
}
else{
locationManager.requestLocationUpdates("gps", 5000, 0, locationListener);
}
getData();
linearLayoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(linearLayoutManager);
adapter = new CustomAdapter(this, userData);
recyclerView.setAdapter(adapter);
}
private void getData(){
userData = new ArrayList<>();
requestQueue = Volley.newRequestQueue(this);
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
parseJson(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("VOLLEY", "ERROR");
}
}
);
requestQueue.add(jsonArrayRequest);
}
private void parseJson(JSONArray response){
try {
for (int i = 0; i < response.length(); i++) {
JSONObject users = response.getJSONObject(i);
String id = ("id: "+users.getString("id"));
String name = ("Name: "+users.getString("name"));
String username = ("Username: "+users.getString("username"));
String email = ("Email: "+users.getString("email"));
String address = parseAddress(users);
String destination = parseCoordinates(users);
String company = parseCompany(users);
String phone = ("Phone: "+users.getString("phone"));
String website = ("Website: "+users.getString("website"));
String eta = get_time_to_travel(origin, destination, API, mode);
UserData udata = new UserData(id, name, username, email, address, phone, website, company,eta);
userData.add(udata);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
private String parseAddress(JSONObject users) {
JSONObject completeAdd = null;
String address = null;
try {
completeAdd = users.getJSONObject("address");
String street = completeAdd.getString("street");
String suite = completeAdd.getString("suite");
String city = completeAdd.getString("city");
String zipcode = completeAdd.getString("zipcode");
address = ("Address :" + street + ", " + suite + ", " + city + ", " + zipcode);
} catch (JSONException e) {
e.printStackTrace();
}
return address;
}
private String parseCoordinates(JSONObject users) {
JSONObject completeAdd = null;
String destination = null;
try {
completeAdd = users.getJSONObject("address");
JSONObject coordinates = completeAdd.getJSONObject("geo");
String latitude = coordinates.getString("lat");
String longitude = coordinates.getString("lng");
destination = latitude + "," + longitude;
} catch (JSONException e) {
e.printStackTrace();
}
return destination;
}
private String parseCompany(JSONObject users) {
JSONObject companyDetail = null;
String company = null;
try {
companyDetail = users.getJSONObject("company");
String company_name = companyDetail.getString("name");
String catchPhrase = companyDetail.getString("catchPhrase");
String bs = companyDetail.getString("bs");
company = ("Company: " + company_name + ", " + catchPhrase + ", " + bs);
} catch (JSONException e) {
e.printStackTrace();
}
return company;
}
private String get_time_to_travel(String origin, String destination, String API, String mode){
requestQueue1 = Volley.newRequestQueue(this);
String eta = null;
String google_api = "https://maps.googleapis.com/maps/api/distancematrix/json?origins="+origin+"&destinations="
+destination+"s&mode="+mode+"&language=fr-FR&key="+API;
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, google_api, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
eta = parseGoogleData(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("VOLLEY", "ERROR");
}
}
);
requestQueue1.add(jsonObjectRequest);
return eta;
}
private String parseGoogleData(JSONObject response) {
String estimated_time_arrival = null;
try {
JSONArray rows = response.getJSONArray("rows");
JSONObject elements = rows.getJSONObject(0);
JSONArray elementsArr = elements.getJSONArray("elements");
JSONObject durationObj = elementsArr.getJSONObject(0);
JSONObject durationData = durationObj.getJSONObject("duration");
estimated_time_arrival = durationData.getString("text");
} catch (JSONException e) {
e.printStackTrace();
}
return estimated_time_arrival;
}
}

Async task is doing work on other thread. So if you want to access any variable out side that method, you need to wait until the task get completed. Otherwise the variable will be null.
eg: on on response method
#Override
public void onResponse(String response) {
res=response;
anyMethodtopassVar(DataType data);
}

in OnCreate() of activity, remove these 2 lines
adapter = new CustomAdapter(this, userData);
recyclerView.setAdapter(adapter);
in getData() remove this line
userData = new ArrayList<>();
put them in parseJson() as below:
private void parseJson(JSONArray response){
try {
if(userData==null){
userData = new ArrayList<>();
}else{
userData.clear();
}
for (int i = 0; i < response.length(); i++) {
JSONObject users = response.getJSONObject(i);
String id = ("id: "+users.getString("id"));
String name = ("Name: "+users.getString("name"));
String username = ("Username: "+users.getString("username"));
String email = ("Email: "+users.getString("email"));
String address = parseAddress(users);
String destination = parseCoordinates(users);
String company = parseCompany(users);
String phone = ("Phone: "+users.getString("phone"));
String website = ("Website: "+users.getString("website"));
String eta = get_time_to_travel(origin, destination, API, mode);
UserData udata = new UserData(id, name, username, email, address, phone, website, company,eta);
userData.add(udata);
}
if(adapter == null){
adapter = new CustomAdapter(this, userData);
recyclerView.setAdapter(adapter);
}else{
adapter.notifyDataSetChanged();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
this way, when json call finish, parseJson() is called.
and after parsing the array into userData the adapter is initialized or notified.
EDIT:
Well, this is not the best sol. but it's just something from the top of my head
little nasty/dirty. i don't know but i think it will do the job
1- you don't have to reinit the queue every time, so in get_time_to_travel() put that line out of the method:
requestQueue1 = Volley.newRequestQueue(this);
add final int index param to the method and make it void:
private void get_time_to_travel(String origin, String destination, String API, String mode, final int index){...
make onResponse() in the method like this:
public void onResponse(JSONObject response) {
eta = parseGoogleData(response);
userData.get(index).setEta(eta);//add this setter to your data object if not exist.
}
remove return eta;
init udata with empty string as eta for now:
UserData udata = new UserData(id, name, username, email, address, phone, website, company,"");
userData.add(udata);
modify the call to get_time_to_travel() in parseJson() as below:
get_time_to_travel(origin, destination, API, mode, i);
when get_time_to_travel() is called at onResponse() the object will be modified to hold the eta value retrieved from the API
this is nasty, sometimes the adapter might be notified before all calls to google api is completed. so this is just to show you how to make it
Edit2
a workaround for this is
init userData object with label "Loading..." for eta
UserData udata = new UserData(id, name, username, email, address, phone, website, company,"Loading...");
and notify the adapter at end of onResponse() of get_time_to_travel():
public void onResponse(JSONObject response) {
eta = parseGoogleData(response);
userData.get(index).setEta(eta);//add this setter to your data object if not exist.
adapter.notifyDataSetChanged();
}

Do you want to get the result of parseJson inside onResponse?
Change the return type of parseJson to UserData, call return userDate; inside try block and return null; in catch block. This will help you catch the result of parseJson from where you are calling it.
Let me know if I did not understand your question properly.

public void getString(final VolleyCallback callback) {
StringRequest req = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
res=response;
callback.onSuccess(res);
}
}...
}}
public interface VolleyCallback{
void onSuccess(String result);
}
Now inside your mainactivity you can do like this.
public void onResume(){
super.onResume();
getString(new VolleyCallback(){
#Override
public void onSuccess(String res){
... //do something
}
});
}

JSONArray to a ListView array data not shown

i want to when run the app make the jsonRequest without pressing any button and save the data. i just add a method for internet connection check:
if the connection to the internet its true, make the json request pass to the spinner, and save de data.
and when the internet connection its false, just load the data from sharedPreferences to the spinner.
The application runs totally fine with the buttons (with simple onClick methods) and without the verificaConexion method.
But when i remove the buttons, add the verificaConexion method and i have internet connection, just, make the json request, show the data in the spinner and not save the data And when I close the app, remove the wifi, open the app, the spinner shows nothing.
For any reason the methods save and load data doesn't works.
This is my onCreate()
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnObtener = (Button) findViewById(R.id.btnObtener);
spDelegaciones = (Spinner)findViewById(R.id.spDelegaciones);
btnGuardar = (Button) findViewById(R.id.btnGuardar);
btnCargar = (Button) findViewById(R.id.btnCargar);
txJsonArray = (TextView) findViewById(R.id.txJsonArray);
verificaConexion(this);
}
This is my json Request method, works fine:
public void request() {
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(json_url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray jsonArray) {
Log.e("jsonArray", "" + jsonArray);
if (jsonArray == null) {
Toast.makeText(MainActivity.this, "EL JSONArray esta VACIO !!! ", Toast.LENGTH_SHORT).show();
} else {
for (int i = 0; i < jsonArray.length(); i++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i);
//con el php JsonArrayRequest2.php
// String contact = jsonObject.getString("delegacion");
//con el php JsonArrayVariosCampos.php
String contact = jsonObject.getString("Delegacion");
arrayList.add(contact);
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter.notifyDataSetChanged();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this, "ERROR...", Toast.LENGTH_SHORT).show();
error.printStackTrace();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(MainActivity.this);
requestQueue.add(jsonArrayRequest);
}
my guardarDatos method to save the data:
public boolean guardarDatos(){
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor mEdit1 = sp.edit();
/* sKey is an array */
mEdit1.putInt("Status_size", arrayList.size());
for(int i=0;i<arrayList.size();i++)
{
mEdit1.remove("Status_" + i);
mEdit1.putString("Status_" + i, arrayList.get(i));
}
Toast.makeText(MainActivity.this, " DATOS GUARDADOS ", Toast.LENGTH_SHORT).show();
return mEdit1.commit();
}
and my cargarDatos method to load the data:
public void cargarDatos(){
SharedPreferences mSharedPreference1 = PreferenceManager.getDefaultSharedPreferences(this);
arrayList.clear();
int size = mSharedPreference1.getInt("Status_size", 0);
for(int i=0;i<size;i++)
{
arrayList.add(mSharedPreference1.getString("Status_" + i, null));
}
adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, arrayList);
spDelegaciones.setAdapter(adapter);
Toast.makeText(MainActivity.this, " DATOS CARGADOS ", Toast.LENGTH_SHORT).show();
}
and here is my class to check the internet connection:
public boolean verificaConexion(Context ctx){
boolean bConectado = false;
ConnectivityManager connec = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo[] redes = connec.getAllNetworkInfo();
for (int i = 0; i < 2; i++) {
if (redes[i].getState() == NetworkInfo.State.CONNECTED) {
bConectado = true;
if(bConectado) {
Toast.makeText(MainActivity.this, " con conexion ", Toast.LENGTH_LONG).show();
adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, arrayList);
spDelegaciones.setAdapter(adapter);
request();
guardarDatos();
}else {
cargarDatos();
}
}else{
}
}
return bConectado;
}

Since you are using only one string in contact class. instead of arrayList<Contact> I will use ArrayList<String>
here I have removed singleTone class. and added jsonArrayRequest code inside in same class. and after adding item in arraylist I have called adapter.notifyDataSetChanged();
MainActivity.class
public class MainActivity extends AppCompatActivity {
TextView txdeleg_lista;
Button btnObtener;
ArrayList<String> arrayList = new ArrayList<String>();
ListView listView;
String json_url = "your url";
ArrayAdapter<String> adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnObtener = (Button) findViewById(R.id.btnObtener);
txdeleg_lista = (TextView) findViewById(R.id.txdeleg_lista);
listView = (ListView) findViewById(R.id.lvDelegacion);
adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, arrayList);
btnObtener.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//startActivity(new Intent(MainActivity.this, DesplegarLista.class));
listView.setAdapter(adapter);
request();
}
});
}
public void request() {
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(json_url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray jsonArray) {
Log.e("jsonArray",""+jsonArray);
if(jsonArray == null){
Toast.makeText(MainActivity.this,"EL JSONArray esta VACIO !!! ", Toast.LENGTH_SHORT).show();
}
else {
for (int i = 0; i < jsonArray.length(); i++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i);
String contact = jsonObject.getString("UFULLNAME");
arrayList.add(contact);
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter.notifyDataSetChanged();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this,"ERROR...", Toast.LENGTH_SHORT).show();
error.printStackTrace();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(MainActivity.this);
requestQueue.add(jsonArrayRequest);
}
}
check and if you have any query comment.

crashing app when use space in autocompletetextview

I am creating an app. my app is crash when i enter any word after provide space in autocompletetextview and then again when i enter any word then its crash. please help me. using following code.........
public class MainActivity extends AppCompatActivity implements OnMapReadyCallback,
GoogleApiClient.ConnectionCallbacks,GoogleApiClient.OnConnectionFailedListener,
LocationListener, AdapterView.OnItemClickListener {
private GoogleMap mMap;
GoogleApiClient mGoogleApiClient;
Location mLastLocation;
Marker mCurrLocationMarker,FindMarker;
LocationRequest mLocationRequest;
AutoCompleteTextView atvPlaces;
DownloadTask placesDownloadTask;
DownloadTask placeDetailsDownloadTask;
ParserTask placesParserTask;
ParserTask placeDetailsParserTask;
LatLng latLng;
final int PLACES = 0;
final int PLACES_DETAILS = 1;
ListView lv;
ImageButton remove;
private boolean exit = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
// setSupportActionBar(toolbar);
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
checkLocationPermission();
}
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
onLocationChanged(mLastLocation);
}
});
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
remove = (ImageButton)findViewById(R.id.place_autocomplete_clear_button);
// Getting a reference to the AutoCompleteTextView
atvPlaces = (AutoCompleteTextView) findViewById(R.id.id_search_EditText);
atvPlaces.setThreshold(1);
// Adding textchange listener
atvPlaces.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// Creating a DownloadTask to download Google Places matching "s"
placesDownloadTask = new DownloadTask(PLACES);
// Getting url to the Google Places Autocomplete api
String url = getAutoCompleteUrl(s.toString().trim());
// Start downloading Google Places
// This causes to execute doInBackground() of DownloadTask class
placesDownloadTask.execute(url);
if (!atvPlaces.getText().toString().equals("")){
lv.setVisibility(View.VISIBLE);
remove.setVisibility(View.VISIBLE);
}else {
lv.setVisibility(View.GONE);
remove.setVisibility(View.GONE);
}
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
#Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
// Setting an item click listener for the AutoCompleteTextView dropdown list
/* atvPlaces.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int index,
long id) {
ListView lv = (ListView) arg0;
SimpleAdapter adapter = (SimpleAdapter) arg0.getAdapter();
HashMap<String, String> hm = (HashMap<String, String>) adapter.getItem(index);
// Creating a DownloadTask to download Places details of the selected place
placeDetailsDownloadTask = new DownloadTask(PLACES_DETAILS);
// Getting url to the Google Places details api
String url = getPlaceDetailsUrl(hm.get("reference"));
// Start downloading Google Place Details
// This causes to execute doInBackground() of DownloadTask class
placeDetailsDownloadTask.execute(url);
InputMethodManager inputManager = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);
}
});*/
lv=(ListView)findViewById(R.id.list);
lv.setOnItemClickListener(this);
setListenerOnWidget();
}
private void setListenerOnWidget() {
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View view) {
atvPlaces.setText("");
}
};
remove.setOnClickListener(listener);
}
#Override
public void onBackPressed() {
if(exit){
finish();
}else {
Toast.makeText(this, "Tap Back again to Exit.",
Toast.LENGTH_SHORT).show();
exit = true;
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
exit = false;
}
}, 3 * 1000);
}
}
#Override
public void onItemClick (AdapterView < ? > adapterView, View view,int i, long l){
//ListView lv = (ListView) adapterView;
SimpleAdapter adapter = (SimpleAdapter) adapterView.getAdapter();
HashMap<String, String> hm = (HashMap<String, String>) adapter.getItem(i);
// Creating a DownloadTask to download Places details of the selected place
placeDetailsDownloadTask = new DownloadTask(PLACES_DETAILS);
// Getting url to the Google Places details api
String url = getPlaceDetailsUrl(hm.get("reference"));
// Start downloading Google Place Details
// This causes to execute doInBackground() of DownloadTask class
placeDetailsDownloadTask.execute(url);
InputMethodManager inputManager = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);
String str = ((TextView) view.findViewById(R.id.place_name)).getText().toString();
Toast.makeText(this,str, Toast.LENGTH_SHORT).show();
atvPlaces.setText(str.replace(' ',','));
lv.setVisibility(view.GONE);
}
private String getPlaceDetailsUrl(String ref) {
// Obtain browser key from https://code.google.com/apis/console
String key = "key=**************************************";
// reference of place
String reference = "reference=" + ref;
// Sensor enabled
String sensor = "sensor=false";
// Building the parameters to the web service
String parameters = reference + "&" + sensor + "&" + key;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/place/details/" + output + "?" + parameters;
return url;
}
private String getAutoCompleteUrl(String place) {
// Obtain browser key from https://code.google.com/apis/console
String key = "key=*********************************";
// place to be be searched
String input = "input=" + place;
// place type to be searched
String types = "types=geocode";
// Sensor enabled
String sensor = "sensor=false";
// Building the parameters to the web service
String parameters = input + "&" + types + "&" + sensor + "&" + key;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/place/autocomplete/" + output + "?" + parameters;
return url;
}
/**
* A method to download json data from url
*/
private String downloadUrl(String strUrl) throws IOException {
String data = "";
InputStream iStream = null;
HttpURLConnection urlConnection = null;
try {
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
urlConnection = (HttpURLConnection) url.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while ((line = br.readLine()) != null) {
sb.append(line);
}
data = sb.toString();
br.close();
} catch (Exception e) {
Log.d("Exception while downloading url", e.toString());
} finally {
iStream.close();
urlConnection.disconnect();
}
return data;
}
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
public boolean checkLocationPermission() {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.ACCESS_FINE_LOCATION)) {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
}
return false;
} else {
return true;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onConnected(#Nullable Bundle bundle) {
mLocationRequest = new LocationRequest();
//mLocationRequest.setInterval(1000);
//mLocationRequest.setFastestInterval(1000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
}
#Override
public void onConnectionSuspended(int i) {
}
#Override
public void onLocationChanged(Location location) {
mLastLocation = location;
if(mCurrLocationMarker != null){
mCurrLocationMarker.remove();
}
LatLng latLng = new LatLng(location.getLatitude(),location.getLongitude());
MarkerOptions markerOption = new MarkerOptions();
markerOption.position(latLng);
markerOption.title("Current Position");
markerOption.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
mCurrLocationMarker = mMap.addMarker(markerOption);
Toast.makeText(this,"Location changed",Toast.LENGTH_SHORT).show();
CameraPosition cameraPosition = new CameraPosition.Builder().target(latLng).zoom(13).build();
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
if(mGoogleApiClient != null){
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient,this);
}
loadNearByPlaces(location.getLatitude(), location.getLongitude());
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(this,
android.Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
} else {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
}
#Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResult) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_LOCATION: {
if (grantResult.length > 0
&& grantResult[0] == PackageManager.PERMISSION_GRANTED) {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
if (mGoogleApiClient == null) {
buildGoogleApiClient();
}
mMap.setMyLocationEnabled(true);
}
} else {
Toast.makeText(this, "permisison denied", Toast.LENGTH_LONG).show();
}
return;
}
}
}
private void loadNearByPlaces(double latitude, double longitude) {
//YOU Can change this type at your own will, e.g hospital, cafe, restaurant.... and see how it all works
String type = "atm";
StringBuilder googlePlacesUrl =
new StringBuilder("https://maps.googleapis.com/maps/api/place/nearbysearch/json?");
googlePlacesUrl.append("location=").append(latitude).append(",").append(longitude);
googlePlacesUrl.append("&radius=").append(PROXIMITY_RADIUS);
googlePlacesUrl.append("&types=").append(type);
googlePlacesUrl.append("&sensor=true");
googlePlacesUrl.append("&key=" + GOOGLE_BROWSER_API_KEY);
JsonObjectRequest request = new JsonObjectRequest(googlePlacesUrl.toString(),
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject result) {
Log.i(TAG, "onResponse: Result= " + result.toString());
parseLocationResult(result);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "onErrorResponse: Error= " + error);
Log.e(TAG, "onErrorResponse: Error= " + error.getMessage());
}
});
AppController.getInstance().addToRequestQueue(request);
}
private void parseLocationResult(JSONObject result) {
String id, place_id, placeName = null, reference, icon, vicinity = null;
double latitude, longitude;
try {
JSONArray jsonArray = result.getJSONArray("results");
if (result.getString(STATUS).equalsIgnoreCase(OK)) {
//mMap.clear();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject place = jsonArray.getJSONObject(i);
id = place.getString(ATM_ID);
place_id = place.getString(PLACE_ID);
if (!place.isNull(NAME)) {
placeName = place.getString(NAME);
}
if (!place.isNull(VICINITY)) {
vicinity = place.getString(VICINITY);
}
latitude = place.getJSONObject(GEOMETRY).getJSONObject(LOCATION)
.getDouble(LATITUDE);
longitude = place.getJSONObject(GEOMETRY).getJSONObject(LOCATION)
.getDouble(LONGITUDE);
reference = place.getString(REFERENCE);
icon = place.getString(ICON);
MarkerOptions markerOptions = new MarkerOptions();
LatLng latLng = new LatLng(latitude, longitude);
markerOptions.position(latLng);
markerOptions.title(placeName);
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory .HUE_BLUE));
markerOptions.snippet(vicinity);
mMap.addMarker(markerOptions);
mMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker arg0) {
return null;
}
#Override
public View getInfoContents(Marker marker) {
View myContentsView = getLayoutInflater().inflate(R.layout.marker, null);
TextView tvTitle = ((TextView)myContentsView.findViewById(R.id.title));
tvTitle.setText(marker.getTitle());
TextView tvSnippet = ((TextView)myContentsView.findViewById(R.id.snippet));
tvSnippet.setText(marker.getSnippet());
return myContentsView;
}
});
}
Toast.makeText(getBaseContext(), jsonArray.length() + " ATM_FOUND!",
Toast.LENGTH_SHORT).show();
} else if (result.getString(STATUS).equalsIgnoreCase(ZERO_RESULTS)) {
Toast.makeText(getBaseContext(), "No ATM found in 5KM radius!!!",
Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
Log.e(TAG, "parseLocationResult: Error=" + e.getMessage());
}
}
private class DownloadTask extends AsyncTask<String, Void, String> {
private int downloadType = 0;
// Constructor
public DownloadTask(int type) {
this.downloadType = type;
}
#Override
protected String doInBackground(String... url) {
// For storing data from web service
String data = "";
try {
// Fetching the data from web service
data = downloadUrl(url[0]);
} catch (Exception e) {
Log.d("Background Task", e.toString());
}
return data;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
switch (downloadType) {
case PLACES:
// Creating ParserTask for parsing Google Places
placesParserTask = new ParserTask(PLACES);
// Start parsing google places json data
// This causes to execute doInBackground() of ParserTask class
placesParserTask.execute(result);
break;
case PLACES_DETAILS:
// Creating ParserTask for parsing Google Places
placeDetailsParserTask = new ParserTask(PLACES_DETAILS);
// Starting Parsing the JSON string
// This causes to execute doInBackground() of ParserTask class
placeDetailsParserTask.execute(result);
}
}
}
/**
* A class to parse the Google Places in JSON format
*/
private class ParserTask extends AsyncTask<String, Integer, List<HashMap<String, String>>> {
int parserType = 0;
public ParserTask(int type) {
this.parserType = type;
}
#Override
protected List<HashMap<String, String>> doInBackground(String... jsonData) {
JSONObject jObject;
List<HashMap<String, String>> list = null;
try {
jObject = new JSONObject(jsonData[0]);
switch (parserType) {
case PLACES:
PlaceJSONParser placeJsonParser = new PlaceJSONParser();
// Getting the parsed data as a List construct
list = placeJsonParser.parse(jObject);
break;
case PLACES_DETAILS:
PlaceDetailsJSONParser placeDetailsJsonParser = new PlaceDetailsJSONParser();
// Getting the parsed data as a List construct
list = placeDetailsJsonParser.parse(jObject);
}
} catch (Exception e) {
Log.d("Exception", e.toString());
}
return list;
}
#Override
protected void onPostExecute(List<HashMap<String, String>> result) {
switch (parserType) {
case PLACES:
String[] from = new String[]{"description"};
int[] to = new int[]{R.id.place_name};
// Creating a SimpleAdapter for the AutoCompleteTextView
//SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), result, android.R.layout.simple_list_item_1, from, to);
// Setting the adapter
//atvPlaces.setAdapter(adapter);
ListAdapter adapter = new SimpleAdapter(MainActivity.this, result,R.layout.row,from,to);
// Adding data into listview
lv.setAdapter(adapter);
break;
case PLACES_DETAILS:
String location = atvPlaces.getText().toString();
if (location != null && !location.equals("")) {
new GeocoderTask().execute(location);
}
break;
}
}
}
private class GeocoderTask extends AsyncTask<String, Void, List<Address>> {
#Override
protected List<Address> doInBackground(String... locationName) {
// TODO Auto-generated method stub
Geocoder geocoder = new Geocoder(getBaseContext());
List<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input text
addresses = geocoder.getFromLocationName(locationName[0], 3);
} catch (IOException e) {
e.printStackTrace();
}
return addresses;
}
protected void onPostExecute(List<Address> addresses) {
if(addresses==null || addresses.size()==0){
Toast.makeText(getBaseContext(), "No Location found", Toast.LENGTH_SHORT).show();
}
for(int i=0;i<addresses.size();i++){
Address address = (Address)addresses.get(i);
latLng = new LatLng(address.getLatitude(), address.getLongitude());
String addressText = String.format("%s, %s",
address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",
address.getCountryName());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title("Find Location");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
FindMarker = mMap.addMarker(markerOptions);
CameraPosition cameraPosition = new CameraPosition.Builder().target(latLng).zoom(13).build();
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
loadNearByPlaces(address.getLatitude(), address.getLongitude());
}
}
}
}
my app is crash when i enter any word after provide space in autocompletetextview and then again when i enter any word then its crash....

Your list is initialized to null at
List<HashMap<String, String>> list = null;
And if the parsing fire any exception, the list will be still null since it won't get initialized & setting a null List to an adapter will produce the NullPointerException at getCount(). So just ensure to initialize it.
List<HashMap<String, String>> list = new ArrayList<>();
IMPORTANT
When you use a space & try to call that URL, it will fire a FileNotFoundException if not encoded properly. In your case, URL url = new URL(strUrl); is firing that exception while using space character.
Easiest way is to replace space with %20. In getAutoCompleteUrl() before return, put the following code to replace space with %20.
private String getAutoCompleteUrl(String place) {
-------existing code----
url = url.replaceAll(" ", "%20");
return url;
}

Actually i had faced the same situation. You are adding data to autocomplete textview dynamically , basically just like google for each word you are typing u are getting that data from server , if i am wrong please correct me.
Use this code for populating data into autocomplete textview dynamically from server depending upon your search
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONException;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.SyncStateContract.Columns;
import android.support.v4.widget.SimpleCursorAdapter;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.Filter;
import android.widget.FilterQueryProvider;
import android.widget.ListView;
public class TestActivity extends Activity {
public Context mContext;
// views declaration
public AutoCompleteTextView txtAutoComplete;
public ListView lvItems;
// arrayList for Adaptor
ArrayList<String> listItems;
// getting input from AutocompleteTxt
String strItemName;
// making Adaptor for autocompleteTextView
ArrayAdapter<String> adaptorAutoComplete;
private static final int ADDRESS_TRESHOLD = 2;
private Filter filter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// for showing full screen
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_listitem);
mContext = this;
listItems = new ArrayList<String>();
// Declaring and getting all views objects
Button btnShare = (Button) findViewById(R.id.ListItem_btnShare);
Button btnSort = (Button) findViewById(R.id.ListItem_btnSort);
lvItems = (ListView) findViewById(R.id.ListItem_lvItem);
txtAutoComplete = (AutoCompleteTextView) findViewById(R.id.ListItem_autoComplete);
// adding listeners to button
btnShare.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
}
});
btnSort.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
}
});
String[] from = { "name" };
int[] to = { android.R.id.text1 };
SimpleCursorAdapter a = new SimpleCursorAdapter(this,
android.R.layout.simple_dropdown_item_1line, null, from, to, 0);
a.setStringConversionColumn(1);
FilterQueryProvider provider = new FilterQueryProvider() {
#Override
public Cursor runQuery(CharSequence constraint) {
// run in the background thread
if (constraint == null) {
return null;
}
String[] columnNames = { Columns._ID, "name" };
MatrixCursor c = new MatrixCursor(columnNames);
try {
// total code for implementing my way of auto complte
String SOAP_ACTION = "your action";
String NAMESPACE = "your name space";
String METHOD_NAME = "your method name";
String URL = "your Url";
SoapObject objSoap = null;
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
// Use this to add parameters
request.addProperty("KEY", yourkey);
request.addProperty("Key", constraint);
request.addProperty("Key", Id);
// Declare the version of the SOAP request
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
envelope.dotNet = true;
HttpTransportSE androidHttpTransport = new HttpTransportSE(
URL);
// this is the actual part that will call the webservice
androidHttpTransport.call(SOAP_ACTION, envelope);
// Get the SoapResult from the envelope body.
objSoap = (SoapObject) envelope.getResponse();
if (objSoap != null) {
String strData = objSoap.toString();
}
if (objSoap != null) {
System.out.println("getPropertyCountinevents//////////"
+ objSoap.getPropertyCount());
for (int i = 0; i < objSoap.getPropertyCount(); i++) {
Object obj = objSoap.getProperty(i);
if (obj instanceof SoapObject) {
SoapObject objNew = (SoapObject) obj;
c.newRow()
.add(i)
.add(objNew.getProperty("Itemname")
.toString());
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return c;
}
};
a.setFilterQueryProvider(provider);
txtAutoComplete.setAdapter(a);
} // on create ends
} // final class ends
replace mine code of getting data from server to yours i.e calling webservices through http calls and it will work like a charm.

how to take on selected item from list view to autocomplete textview

I want to show item of list view in autocomplete text view when click on that item in the list view using the following code.
public class MainActivity extends AppCompatActivity implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener, AdapterView.OnItemClickListener {
LocationRequest mLocationRequest;
GoogleApiClient mGoogleApiClient;
GoogleMap mMap;
SupportMapFragment mFragment;
Marker CurrentMarker,FindMarker;
Location mLastLocation;
CustomAutoCompleteTextView atvPlaces = null;
DownloadTask placesDownloadTask;
DownloadTask placeDetailsDownloadTask;
ParserTask placesParserTask;
ParserTask placeDetailsParserTask;
final int PLACES=0;
final int PLACES_DETAILS=1;
LatLng latLng;
ListView lv;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
checkLocationPermission();
}
mFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mFragment.getMapAsync(this);
// Getting a reference to the AutoCompleteTextView
atvPlaces = (CustomAutoCompleteTextView) findViewById(R.id.atv_places);
atvPlaces.setThreshold(1);
// Adding textchange listener
atvPlaces.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// Creating a DownloadTask to download Google Places matching "s"
placesDownloadTask = new DownloadTask(PLACES);
// Getting url to the Google Places Autocomplete api
String url = getAutoCompleteUrl(s.toString());
// Start downloading Google Places
// This causes to execute doInBackground() of DownloadTask class
placesDownloadTask.execute(url);
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
#Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
lv = (ListView) findViewById(R.id.list);
lv.setOnItemClickListener(this);
}
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
public boolean checkLocationPermission() {
if(ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED){
if(ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.ACCESS_FINE_LOCATION)){
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
}else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
}
return false;
}else{
return true;
}
}
private String getAutoCompleteUrl(String place){
// Obtain browser key from https://code.google.com/apis/console
String key = "key=AIzaSyC_7RaIknbxXauB6n2xHNTZgRjg0eo5xog";
// place to be be searched
String input = "input="+place;
// place type to be searched
String types = "types=geocode";
// Sensor enabled
String sensor = "sensor=false";
// Building the parameters to the web service
String parameters = input+"&"+types+"&"+sensor+"&"+key;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/place/autocomplete/"+output+"?"+parameters;
return url;
}
private String getPlaceDetailsUrl(String ref){
// Obtain browser key from https://code.google.com/apis/console
String key = "key=AIzaSyC_7RaIknbxXauB6n2xHNTZgRjg0eo5xog";
// reference of place
String reference = "reference="+ref;
// Sensor enabled
String sensor = "sensor=false";
// Building the parameters to the web service
String parameters = reference+"&"+sensor+"&"+key;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/place/details/"+output+"?"+parameters;
return url;
}
/** A method to download json data from url */
private String downloadUrl(String strUrl) throws IOException{
String data = "";
InputStream iStream = null;
HttpURLConnection urlConnection = null;
try{
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
urlConnection = (HttpURLConnection) url.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while( ( line = br.readLine()) != null){
sb.append(line);
}
data = sb.toString();
br.close();
}catch(Exception e){
//Log.d("Exception while downloading url", e.toString());
}finally{
iStream.close();
urlConnection.disconnect();
}
return data;
}
#Override
public void onConnected(Bundle bundle) {
mLocationRequest = new LocationRequest();
// mLocationRequest.setInterval(1000);
// mLocationRequest.setFastestInterval(1000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)==PackageManager.PERMISSION_GRANTED){
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest,this);
}
}
#Override
public void onConnectionSuspended(int i) {
}
#Override
public void onLocationChanged(Location location) {
mLastLocation = location;
if(CurrentMarker != null){
CurrentMarker.remove();
}
LatLng latLng = new LatLng(location.getLatitude(),location.getLongitude());
MarkerOptions markerOption = new MarkerOptions();
markerOption.position(latLng);
markerOption.title("Current Position");
markerOption.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
CurrentMarker = mMap.addMarker(markerOption);
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomTo(13));
if(mGoogleApiClient != null){
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient,this);
}
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
==PackageManager.PERMISSION_GRANTED){
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
}
else {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
}
#Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResult){
switch (requestCode){
case MY_PERMISSIONS_REQUEST_LOCATION: {
if(grantResult.length > 0
&& grantResult[0] == PackageManager.PERMISSION_GRANTED){
if(ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
if(mGoogleApiClient == null){
buildGoogleApiClient();
}
mMap.setMyLocationEnabled(true);
}
}else {
Toast.makeText(this, "permisison denied", Toast.LENGTH_LONG).show();
}
return;
}
}
}
#Override
public void onItemClick(AdapterView adapterView, View view, int position, long id) {
String str = ((TextView) view.findViewById(R.id.place_name)).getText().toString();
Toast.makeText(this,str, Toast.LENGTH_SHORT).show();
}
private class DownloadTask extends AsyncTask<String, Void, String> {
private int downloadType = 0;
// Constructor
public DownloadTask(int type) {
this.downloadType = type;
}
#Override
protected String doInBackground(String... url) {
// For storing data from web service
String data = "";
try {
// Fetching the data from web service
data = downloadUrl(url[0]);
} catch (Exception e) {
Log.d("Background Task", e.toString());
}
return data;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
switch (downloadType) {
case PLACES:
// Creating ParserTask for parsing Google Places
placesParserTask = new ParserTask(PLACES);
// Start parsing google places json data
// This causes to execute doInBackground() of ParserTask class
placesParserTask.execute(result);
break;
case PLACES_DETAILS:
// Creating ParserTask for parsing Google Places
placeDetailsParserTask = new ParserTask(PLACES_DETAILS);
// Starting Parsing the JSON string
// This causes to execute doInBackground() of ParserTask class
placeDetailsParserTask.execute(result);
}
}
}
/**
* A class to parse the Google Places in JSON format
*/
private class ParserTask extends AsyncTask<String, Integer, List<HashMap<String, String>>> {
int parserType = 0;
public ParserTask(int type) {
this.parserType = type;
}
#Override
protected List<HashMap<String, String>> doInBackground(String... jsonData) {
JSONObject jObject;
List<HashMap<String, String>> list = null;
try {
jObject = new JSONObject(jsonData[0]);
switch (parserType) {
case PLACES:
PlaceJSONParser placeJsonParser = new PlaceJSONParser();
// Getting the parsed data as a List construct
list = placeJsonParser.parse(jObject);
break;
case PLACES_DETAILS:
PlaceDetailsJSONParser placeDetailsJsonParser = new PlaceDetailsJSONParser();
// Getting the parsed data as a List construct
list = placeDetailsJsonParser.parse(jObject);
}
} catch (Exception e) {
Log.d("Exception", e.toString());
}
return list;
}
#Override
protected void onPostExecute(List<HashMap<String, String>> result) {
switch (parserType) {
case PLACES:
String[] from = new String[]{"description"};
int[] to = new int[]{R.id.place_name};
// Creating a SimpleAdapter for the AutoCompleteTextView
//SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), result, android.R.layout.simple_list_item_1, from, to);
// Setting the adapter
// atvPlaces.setAdapter(lv);
// list adapter
ListAdapter adapter = new SimpleAdapter(MainActivity.this, result,R.layout.list_item,from,to);
// Adding data into listview
lv.setAdapter(adapter);
break;
case PLACES_DETAILS:
String location = atvPlaces.getText().toString();
if (location != null && !location.equals("")) {
new GeocoderTask().execute(location);
}
break;
}
}
}
private class GeocoderTask extends AsyncTask<String, Void, List<Address>> {
#Override
protected List<Address> doInBackground(String... locationName) {
// TODO Auto-generated method stub
Geocoder geocoder = new Geocoder(getBaseContext());
List<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input text
addresses = geocoder.getFromLocationName(locationName[0], 3);
} catch (IOException e) {
e.printStackTrace();
}
return addresses;
}
protected void onPostExecute(List<Address> addresses) {
if(addresses==null || addresses.size()==0){
Toast.makeText(getBaseContext(), "No Location found", Toast.LENGTH_SHORT).show();
}
for(int i=0;i<addresses.size();i++){
Address address = (Address)addresses.get(i);
latLng = new LatLng(address.getLatitude(), address.getLongitude());
String addressText = String.format("%s, %s",
address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",
address.getCountryName());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title("Find Location");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
FindMarker = mMap.addMarker(markerOptions);
CameraPosition cameraPosition = new CameraPosition.Builder().target(latLng).zoom(13).build();
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
}
}
}
}
I want to show selected item in autocompleteTextview from listView when click on that item. Please tell me using my source code.

#Override
public void onItemClick(AdapterView adapterView, View view, int position, long id) {
String str = ((TextView) view.findViewById(R.id.place_name)).getText().toString();
Toast.makeText(this,str, Toast.LENGTH_SHORT).show();
atvPlaces.setText(str);
atvPlaces.dismissDropDown();
}

Pls check this code, I modified.
String mSelectedItem;
mListView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int ClikedPosition, long id) {
//Getting clicked item from list view
mSelectedItem=adapter.getItem(ClikedPosition);
//Setting to auto complete text view
mAutoCompleteTextView.setText(mSelectedItem);
}
});