Autocomplete predictions don't show up in my MapsActivity when i type text in AutoCompleteTextView (mSearchText).
I tried following the tutorial at the following link: https://www.youtube.com/watch?v=6Trdd9EnmqY&list=PLgCYzUzKIBE-vInwQhGSdnbyJ62nixHCt&index=8. Some methods used in it recently became deprecated, so I checked the documentation at https://developers.google.com/places/android-sdk/autocomplete, especially "Get place predictions programmatically" and "Migrating to the New Places SDK Client". I also followed a guide from the same guy to set up my API key, and I think that shouldn't be the problem here. This is my first Android application and my first question on this site, so please be patient with me.
Places.initialize(getApplicationContext(), getString(R.string.google_maps_API_key));
PlacesClient placesClient = Places.createClient(this);
FindAutocompletePredictionsRequest request = FindAutocompletePredictionsRequest.builder()
.setLocationBias(RECTANGULAR_BOUNDS)
.setQuery(mSearchText.getText().toString())
.build();
placesClient.findAutocompletePredictions(request).addOnSuccessListener((response) -> {
for (AutocompletePrediction prediction : response.getAutocompletePredictions()) {
Log.i(TAG, prediction.getPlaceId());
Log.i(TAG, prediction.getPrimaryText(null).toString());
}
}).addOnFailureListener((exception) -> {
if (exception instanceof ApiException) {
ApiException apiException = (ApiException) exception;
Log.e(TAG, "Place not found: " + apiException.getStatusCode());
}
});
The Autocomplete predictions should show up as the user types in the searchbar, but that doesn't happen. I don't get any of the logs from the listeners either.
build.gradle (Module:app)
implementation 'com.google.android.gms:play-services-maps:17.0.0'
implementation 'com.google.android.gms:play-services-location:17.0.0'
implementation 'com.google.android.gms:play-services-places:17.0.0'
implementation 'com.google.android.libraries.places:places:1.1.0'
Activity Layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:padding="15dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activity.MapsActivity">
<EditText
android:id="@+id/place_search"
android:hint="Search"
android:inputType="textPostalAddress"
android:padding="15dp"
android:layout_marginBottom="15dp"
android:drawableLeft="@drawable/places_ic_search"
android:background="@drawable/edit_text_border"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/places_recycler_view"
android:background="#FFF"
android:orientation="vertical"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</androidx.recyclerview.widget.RecyclerView>
</LinearLayout>
Activity
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.libraries.places.api.Places;
import com.google.android.libraries.places.api.model.Place;
import com.zaaibo.drive.R;
import com.zaaibo.drive.adapter.PlacesAutoCompleteAdapter;
public class MapsActivity extends AppCompatActivity implements PlacesAutoCompleteAdapter.ClickListener{
private PlacesAutoCompleteAdapter mAutoCompleteAdapter;
private RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings);
Places.initialize(this, getResources().getString(R.string.google_maps_key));
recyclerView = (RecyclerView) findViewById(R.id.places_recycler_view);
((EditText) findViewById(R.id.place_search)).addTextChangedListener(filterTextWatcher);
mAutoCompleteAdapter = new PlacesAutoCompleteAdapter(this);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
mAutoCompleteAdapter.setClickListener(this);
recyclerView.setAdapter(mAutoCompleteAdapter);
mAutoCompleteAdapter.notifyDataSetChanged();
}
private TextWatcher filterTextWatcher = new TextWatcher() {
public void afterTextChanged(Editable s) {
if (!s.toString().equals("")) {
mAutoCompleteAdapter.getFilter().filter(s.toString());
if (recyclerView.getVisibility() == View.GONE) {recyclerView.setVisibility(View.VISIBLE);}
} else {
if (recyclerView.getVisibility() == View.VISIBLE) {recyclerView.setVisibility(View.GONE);}
}
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
public void onTextChanged(CharSequence s, int start, int before, int count) { }
};
@Override
public void click(Place place) {
Toast.makeText(this, place.getAddress()+", "+place.getLatLng().latitude+place.getLatLng().longitude, Toast.LENGTH_SHORT).show();
}
}
Adapter
import android.content.Context;
import android.graphics.Typeface;
import android.text.style.CharacterStyle;
import android.text.style.StyleSpan;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.android.gms.tasks.Tasks;
import com.google.android.libraries.places.api.model.AutocompletePrediction;
import com.google.android.libraries.places.api.model.AutocompleteSessionToken;
import com.google.android.libraries.places.api.model.Place;
import com.google.android.libraries.places.api.net.FetchPlaceRequest;
import com.google.android.libraries.places.api.net.FetchPlaceResponse;
import com.google.android.libraries.places.api.net.FindAutocompletePredictionsRequest;
import com.google.android.libraries.places.api.net.FindAutocompletePredictionsResponse;
import com.google.android.libraries.places.api.net.PlacesClient;
import com.zaaibo.drive.R;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
public class PlacesAutoCompleteAdapter extends RecyclerView.Adapter<PlacesAutoCompleteAdapter.PredictionHolder> implements Filterable {
private static final String TAG = "PlacesAutoAdapter";
private ArrayList<PlaceAutocomplete> mResultList = new ArrayList<>();
private Context mContext;
private CharacterStyle STYLE_BOLD;
private CharacterStyle STYLE_NORMAL;
private final PlacesClient placesClient;
private ClickListener clickListener;
public PlacesAutoCompleteAdapter(Context context) {
mContext = context;
STYLE_BOLD = new StyleSpan(Typeface.BOLD);
STYLE_NORMAL = new StyleSpan(Typeface.NORMAL);
placesClient = com.google.android.libraries.places.api.Places.createClient(context);
}
public void setClickListener(ClickListener clickListener) {
this.clickListener = clickListener;
}
public interface ClickListener {
void click(Place place);
}
/**
* Returns the filter for the current set of autocomplete results.
*/
@Override
public Filter getFilter() {
return new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults();
// Skip the autocomplete query if no constraints are given.
if (constraint != null) {
// Query the autocomplete API for the (constraint) search string.
mResultList = getPredictions(constraint);
if (mResultList != null) {
// The API successfully returned results.
results.values = mResultList;
results.count = mResultList.size();
}
}
return results;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
if (results != null && results.count > 0) {
// The API returned at least one result, update the data.
notifyDataSetChanged();
} else {
// The API did not return any results, invalidate the data set.
//notifyDataSetInvalidated();
}
}
};
}
private ArrayList<PlaceAutocomplete> getPredictions(CharSequence constraint) {
final ArrayList<PlaceAutocomplete> resultList = new ArrayList<>();
// Create a new token for the autocomplete session. Pass this to FindAutocompletePredictionsRequest,
// and once again when the user makes a selection (for example when calling fetchPlace()).
AutocompleteSessionToken token = AutocompleteSessionToken.newInstance();
//https://gist.github.com/graydon/11198540
// Use the builder to create a FindAutocompletePredictionsRequest.
FindAutocompletePredictionsRequest request = FindAutocompletePredictionsRequest.builder()
// Call either setLocationBias() OR setLocationRestriction().
//.setLocationBias(bounds)
//.setCountry("BD")
//.setTypeFilter(TypeFilter.ADDRESS)
.setSessionToken(token)
.setQuery(constraint.toString())
.build();
Task<FindAutocompletePredictionsResponse> autocompletePredictions = placesClient.findAutocompletePredictions(request);
// This method should have been called off the main UI thread. Block and wait for at most
// 60s for a result from the API.
try {
Tasks.await(autocompletePredictions, 60, TimeUnit.SECONDS);
} catch (ExecutionException | InterruptedException | TimeoutException e) {
e.printStackTrace();
}
if (autocompletePredictions.isSuccessful()) {
FindAutocompletePredictionsResponse findAutocompletePredictionsResponse = autocompletePredictions.getResult();
if (findAutocompletePredictionsResponse != null)
for (AutocompletePrediction prediction : findAutocompletePredictionsResponse.getAutocompletePredictions()) {
Log.i(TAG, prediction.getPlaceId());
resultList.add(new PlaceAutocomplete(prediction.getPlaceId(), prediction.getPrimaryText(STYLE_NORMAL).toString(), prediction.getFullText(STYLE_BOLD).toString()));
}
return resultList;
} else {
return resultList;
}
}
@NonNull
@Override
public PredictionHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
LayoutInflater layoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View convertView = layoutInflater.inflate(R.layout.place_recycler_item_layout, viewGroup, false);
return new PredictionHolder(convertView);
}
@Override
public void onBindViewHolder(@NonNull PredictionHolder mPredictionHolder, final int i) {
mPredictionHolder.address.setText(mResultList.get(i).address);
mPredictionHolder.area.setText(mResultList.get(i).area);
}
@Override
public int getItemCount() {
return mResultList.size();
}
public PlaceAutocomplete getItem(int position) {
return mResultList.get(position);
}
public class PredictionHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private TextView address, area;
private LinearLayout mRow;
PredictionHolder(View itemView) {
super(itemView);
area = itemView.findViewById(R.id.place_area);
address = itemView.findViewById(R.id.place_address);
mRow = itemView.findViewById(R.id.place_item_view);
itemView.setOnClickListener(this);
}
@Override
public void onClick(View v) {
PlaceAutocomplete item = mResultList.get(getAdapterPosition());
if (v.getId() == R.id.place_item_view) {
String placeId = String.valueOf(item.placeId);
List<Place.Field> placeFields = Arrays.asList(Place.Field.ID, Place.Field.NAME, Place.Field.LAT_LNG, Place.Field.ADDRESS);
FetchPlaceRequest request = FetchPlaceRequest.builder(placeId, placeFields).build();
placesClient.fetchPlace(request).addOnSuccessListener(new OnSuccessListener<FetchPlaceResponse>() {
@Override
public void onSuccess(FetchPlaceResponse response) {
Place place = response.getPlace();
clickListener.click(place);
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception exception) {
if (exception instanceof ApiException) {
Toast.makeText(mContext, exception.getMessage() + "", Toast.LENGTH_SHORT).show();
}
}
});
}
}
}
/**
* Holder for Places Geo Data Autocomplete API results.
*/
public class PlaceAutocomplete {
public CharSequence placeId;
public CharSequence address, area;
PlaceAutocomplete(CharSequence placeId, CharSequence area, CharSequence address) {
this.placeId = placeId;
this.area = area;
this.address = address;
}
@Override
public String toString() {
return area.toString();
}
}
}