我已经将Googleplaces的gradle从8.4.0更新到10.0.1
使用compile 'com.google.android.gms:play-services-places:10.0.1'。
它给出了我的预测结果：
E/PlaceAutocomplete: ChIJARFGZy6_wjsRQ-Oenb9DjYI
E/PlaceAutocomplete: ChIJCZRqkjTBwjsRtSBs09cqv5I
E/PlaceAutocomplete: ChIJSXAo8VjAwjsR8XBJRuCZo0c
E/PlaceAutocomplete: ChIJfxihRRy35zsRHL6ljyiIYKQ
E/PlaceAutocomplete: ChIJFZ6g4SXG5zsRdAbRQFugDUk
为“浦那”城市。
但是，在之前的gradle中：
compile 'com.google.android.gms:play-services-places:8.4.0'。
它给出了正确的城市名称。
如何获得预期结果？
我从以下代码中获取城市名称：
if (mGoogleApiClient != null) {
mAdapter = new PlaceAutoCompleteAdapter(getActivity(), android.R.layout.simple_list_item_1, mGoogleApiClient, BOUNDS_GREATER_SYDNEY, null);
place_from.setAdapter(mAdapter);
place_to.setAdapter(mAdapter);
place_from.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
final PlaceAutoCompleteAdapter.PlaceAutocomplete item = mAdapter.getItem(position);
final String placeId = String.valueOf(item.placeId);
Log.i("", "Autocomplete item selected: " + item.description);
/*
* Issue a request to the Places Geo Data API to retrieve a Place object with additional
* details about the place.
*/
PendingResult<PlaceBuffer> placeResult = Places.GeoDataApi.getPlaceById(mGoogleApiClient, placeId);
placeResult.setResultCallback(new ResultCallback<PlaceBuffer>() {
@Override
public void onResult(PlaceBuffer places) {
if (!places.getStatus().isSuccess()) {
// Request did not complete successfully
Log.e("", "Place query did not complete. Error: " + places.getStatus().toString());
places.release();
return;
}
// Get the Place object from the buffer.
final Place place = places.get(0);
start = place.getLatLng();
}
});
}
});
}
});
并使用PlaceAutoCompleteAdapter
private static final String TAG = "PlaceAutocomplete";
/**
* Handles autocomplete requests.
*/
private final GoogleApiClient mGoogleApiClient;
/**
* The autocomplete filter used to restrict queries to a specific set of place types.
*/
private final AutocompleteFilter mPlaceFilter;
/**
* Current results returned by this adapter.
*/
private ArrayList<PlaceAutocomplete> mResultList;
/**
* The bounds used for Places Geo Data autocomplete API requests.
*/
private LatLngBounds mBounds;
/**
* Initializes with a resource for text rows and autocomplete query bounds.
*
* @see ArrayAdapter#ArrayAdapter(Context, int)
*/
public PlaceAutoCompleteAdapter(Context context, int resource, GoogleApiClient googleApiClient,
LatLngBounds bounds, AutocompleteFilter filter) {
super(context, resource);
mGoogleApiClient = googleApiClient;
mBounds = bounds;
mPlaceFilter = filter;
}
/**
* Sets the bounds for all subsequent queries.
*/
public void setBounds(LatLngBounds bounds) {
mBounds = bounds;
}
/**
* Returns the number of results received in the last autocomplete query.
*/
@Override
public int getCount() {
return mResultList.size();
}
/**
* Returns an item from the last autocomplete query.
*/
@Override
public PlaceAutocomplete getItem(int position) {
return mResultList.get(position);
}
/**
* Returns the filter for the current set of autocomplete results.
*/
@Override
public Filter getFilter() {
Filter filter = 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 = getAutocomplete(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();
}
}
};
return filter;
}
/**
* Submits an autocomplete query to the Places Geo Data Autocomplete API.
* <p/>
* objects to store the Place ID and description that the API returns.
* Returns an empty list if no results were found.
* Returns null if the API client is not available or the query did not complete
* successfully.
* This method MUST be called off the main UI thread, as it will block until data is returned
* from the API, which may include a network request.
*
* @param constraint Autocomplete query string
* @return Results from the autocomplete API or null if the query was not successful.
* @see Places#GEO_DATA_API#getAutocomplete(CharSequence)
*/
private ArrayList<PlaceAutocomplete> getAutocomplete(CharSequence constraint) {
if (mGoogleApiClient.isConnected()) {
Log.i(TAG, "Starting autocomplete query for: " + constraint);
// Submit the query to the autocomplete API and retrieve a PendingResult that will
// contain the results when the query completes. // Submit the query to the autocomplete API and retrieve a PendingResult that will
PendingResult<AutocompletePredictionBuffer> results =
Places.GeoDataApi
.getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
mBounds, mPlaceFilter);
// This method should have been called off the main UI thread. Block and wait for at most 60s
// for a result from the API.
AutocompletePredictionBuffer autocompletePredictions = results
.await(60, TimeUnit.SECONDS);
// Confirm that the query completed successfully, otherwise return null
final Status status = autocompletePredictions.getStatus();
if (!status.isSuccess()) {
Toast.makeText(getContext(), "Error contacting API: " + status.toString(),
Toast.LENGTH_SHORT).show();
Log.e(TAG, "Error getting autocomplete prediction API call: " + status.getStatusMessage() + status.getStatus().getStatusMessage());
autocompletePredictions.release();
return null;
}
Log.i(TAG, "Query completed. Received " + autocompletePredictions.getCount()
+ " predictions.");
// Copy the results into our own data structure, because we can't hold onto the buffer.
// AutocompletePrediction objects encapsulate the API response (place ID and description).
Iterator<AutocompletePrediction> iterator = autocompletePredictions.iterator();
ArrayList resultList = new ArrayList<>(autocompletePredictions.getCount());
while (iterator.hasNext()) {
AutocompletePrediction prediction = iterator.next();
// Get the details of this prediction and copy it into a new PlaceAutocomplete object.
resultList.add(new PlaceAutocomplete(prediction.getPlaceId(),
prediction.getPlaceId()));
}
// Release the buffer now that all data has been copied.
autocompletePredictions.release();
for (int i = 0; i < resultList.size(); i++) {
Log.e(TAG, resultList.get(i).toString());
}
return resultList;
}
Log.e(TAG, "Google API client is not connected for autocomplete query.");
return null;
}
/**
* Holder for Places Geo Data Autocomplete API results.
*/
public class PlaceAutocomplete {
public CharSequence placeId;
public CharSequence description;
PlaceAutocomplete(CharSequence placeId, CharSequence description) {
this.placeId = placeId;
this.description = description;
}
@Override
public String toString() {
return description.toString();
}
}
}
答案 0 :(得分：3)
此解决方案适合我
public class PlaceAutoCompleteAdapter
extends ArrayAdapter<PlaceAutoCompleteAdapter.PlaceAutocomplete> implements Filterable {
private static final String TAG = "PlaceAutocomplete";
/**
* Current results returned by this adapter.
*/
private ArrayList<PlaceAutocomplete> mResultList;
/**
* Handles autocomplete requests.
*/
private final GoogleApiClient mGoogleApiClient;
/**
* The bounds used for Places Geo Data autocomplete API requests.
*/
private LatLngBounds mBounds;
/**
* The autocomplete filter used to restrict queries to a specific set of place types.
*/
private final AutocompleteFilter mPlaceFilter;
/**
* Initializes with a resource for text rows and autocomplete query bounds.
*
* @see ArrayAdapter#ArrayAdapter(Context, int)
*/
public PlaceAutoCompleteAdapter(Context context, int resource, GoogleApiClient googleApiClient,
LatLngBounds bounds, AutocompleteFilter filter) {
super(context, resource);
mGoogleApiClient = googleApiClient;
mBounds = bounds;
mPlaceFilter = filter;
}
/**
* Sets the bounds for all subsequent queries.
*/
public void setBounds(LatLngBounds bounds) {
mBounds = bounds;
}
/**
* Returns the number of results received in the last autocomplete query.
*/
@Override
public int getCount() {
return mResultList.size();
}
/**
* Returns an item from the last autocomplete query.
*/
@Override
public PlaceAutocomplete getItem(int position) {
return mResultList.get(position);
}
/**
* Returns the filter for the current set of autocomplete results.
*/
@Override
public Filter getFilter() {
Filter filter = 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 = getAutocomplete(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();
}
}
};
return filter;
}
/**
* Submits an autocomplete query to the Places Geo Data Autocomplete API.
* <p/>
* objects to store the Place ID and description that the API returns.
* Returns an empty list if no results were found.
* Returns null if the API client is not available or the query did not complete
* successfully.
* This method MUST be called off the main UI thread, as it will block until data is returned
* from the API, which may include a network request.
*
* @param constraint Autocomplete query string
* @return Results from the autocomplete API or null if the query was not successful.
* @see Places#GEO_DATA_API#getAutocomplete(CharSequence)
*/
private ArrayList<PlaceAutocomplete> getAutocomplete(CharSequence constraint) {
if (mGoogleApiClient.isConnected()) {
Log.i(TAG, "Starting autocomplete query for: " + constraint);
// Submit the query to the autocomplete API and retrieve a PendingResult that will
// contain the results when the query completes. // Submit the query to the autocomplete API and retrieve a PendingResult that will
PendingResult<AutocompletePredictionBuffer> results =
Places.GeoDataApi
.getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
mBounds, mPlaceFilter);
// This method should have been called off the main UI thread. Block and wait for at most 60s
// for a result from the API.
AutocompletePredictionBuffer autocompletePredictions = results
.await(60, TimeUnit.SECONDS);
// Confirm that the query completed successfully, otherwise return null
final Status status = autocompletePredictions.getStatus();
if (!status.isSuccess()) {
Toast.makeText(getContext(), "Error contacting API: " + status.toString(),
Toast.LENGTH_SHORT).show();
Log.e(TAG, "Error getting autocomplete prediction API call: " + status.getStatusMessage()+status.getStatus().getStatusMessage());
autocompletePredictions.release();
return null;
}
Log.i(TAG, "Query completed. Received " + autocompletePredictions.getCount()
+ " predictions.");
// Copy the results into our own data structure, because we can't hold onto the buffer.
// AutocompletePrediction objects encapsulate the API response (place ID and description).
Iterator<AutocompletePrediction> iterator = autocompletePredictions.iterator();
ArrayList resultList = new ArrayList<>(autocompletePredictions.getCount());
while (iterator.hasNext()) {
AutocompletePrediction prediction = iterator.next();
// Get the details of this prediction and copy it into a new PlaceAutocomplete object.
resultList.add(new PlaceAutocomplete(prediction.getPlaceId(),
prediction.getDescription()));
}
// Release the buffer now that all data has been copied.
autocompletePredictions.release();
return resultList;
}
Log.e(TAG, "Google API client is not connected for autocomplete query.");
return null;
}
/**
* Holder for Places Geo Data Autocomplete API results.
*/
public class PlaceAutocomplete {
public CharSequence placeId;
public CharSequence description;
PlaceAutocomplete(CharSequence placeId, CharSequence description) {
this.placeId = placeId;
this.description = description;
}
@Override
public String toString() {
return description.toString();
}
}
}
答案 1 :(得分：0)
试试这个：
Places.GeoDataApi.getPlaceById(mGoogleApiClient, placeId)
.setResultCallback(new ResultCallback<PlaceBuffer>() {
@Override
public void onResult(PlaceBuffer places) {
if (places.getStatus().isSuccess() && places.getCount() > 0) {
final Place myPlace = places.get(0);
Log.i(TAG, "Place found: " + myPlace.getName());
} else {
Log.e(TAG, "Place not found");
}
places.release();
}
});