import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
private ArrayList<AutocompletePrediction> getAutocomplete(CharSequence constraint) {
    if (mGoogleApiClient.isConnected()) {

        PendingResult<AutocompletePredictionBuffer> results =
                Places.GeoDataApi
                        .getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
                                mBounds, mPlaceFilter);

        AutocompletePredictionBuffer autocompletePredictions = results
                .await(60, TimeUnit.SECONDS);

        final Status status = autocompletePredictions.getStatus();
        if (!status.isSuccess()) {
            Toast.makeText(getContext(), "Error contacting API: " + status.toString(),
                    Toast.LENGTH_SHORT).show();
            autocompletePredictions.release();
            return null;
        }
        return DataBufferUtils.freezeAndClose(autocompletePredictions);
    }
    return null;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
public Observable<PlacePrediction> getAutocompleteResults(final GoogleApiClient mGoogleApiClient, final String query, final LatLngBounds bounds) {
    return Observable.create(new Observable.OnSubscribe<PlacePrediction>() {
        @Override
        public void call(Subscriber<? super PlacePrediction> subscriber) {

            PendingResult<AutocompletePredictionBuffer> results =
                    Places.GeoDataApi.getAutocompletePredictions(mGoogleApiClient, query,
                            bounds, null);

            AutocompletePredictionBuffer autocompletePredictions = results
                    .await(60, TimeUnit.SECONDS);

            final Status status = autocompletePredictions.getStatus();
            if (!status.isSuccess()) {
                autocompletePredictions.release();
                subscriber.onError(null);
            } else {
                for (AutocompletePrediction autocompletePrediction : autocompletePredictions) {
                    subscriber.onNext(
                            new PlacePrediction(
                                    autocompletePrediction.getPlaceId(),
                                    autocompletePrediction.getDescription()
                            ));
                }
                autocompletePredictions.release();
                subscriber.onCompleted();
            }
        }
    });
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
private ArrayList<AutocompletePrediction> getAutocomplete(CharSequence constraint) {
  if (mGoogleApiClient.isConnected()) {
    PendingResult<AutocompletePredictionBuffer> results =
        Places.GeoDataApi.getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
            mBounds, mPlaceFilter);

    AutocompletePredictionBuffer autocompletePredictions = results.await(60, TimeUnit.SECONDS);

    final Status status = autocompletePredictions.getStatus();
    if (!status.isSuccess()) {
      Toast.makeText(getContext(), "Error contacting API: " + status.toString(),
          Toast.LENGTH_SHORT).show();
      autocompletePredictions.release();
      return null;
    }

    return DataBufferUtils.freezeAndClose(autocompletePredictions);
  }
  return null;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
private ArrayList<AutocompletePrediction> getAutocomplete(CharSequence constraint) {
	if (mGoogleApiClient.isConnected()) {
		PendingResult<AutocompletePredictionBuffer> results =
                  Places.GeoDataApi
			.getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
										mBounds, mPlaceFilter);
 				AutocompletePredictionBuffer autocompletePredictions = results
                  .await(60, TimeUnit.SECONDS);
				final Status status = autocompletePredictions.getStatus();
		if (!status.isSuccess()) {
			if (callback != null) callback.onSuggestFail(status);
			autocompletePredictions.release();
			return null;
		}
			return DataBufferUtils.freezeAndClose(autocompletePredictions);
	}
		return null;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
private ArrayList<PlaceAutocomplete> getPredictions(CharSequence constraint) {
    if (mGoogleApiClient != null) {
        Log.i(TAG, "Executing autocomplete query for: " + constraint);
        PendingResult<AutocompletePredictionBuffer> results =
                Places.GeoDataApi
                        .getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
                                mBounds, mPlaceFilter);
        // Wait for predictions, set the timeout.
        AutocompletePredictionBuffer autocompletePredictions = results
                .await(60, TimeUnit.SECONDS);
        final Status status = autocompletePredictions.getStatus();
        if (!status.isSuccess()) {
            Toast.makeText(getContext(), "We recommend using internet for better accuracy of the location! ", Toast.LENGTH_SHORT).show();

            Log.e(TAG, "Error getting place predictions: " + status.toString());
            autocompletePredictions.release();
            return null;
        }

        Log.i(TAG, "Query completed. Received " + autocompletePredictions.getCount()
                + " predictions.");
        Iterator<AutocompletePrediction> iterator = autocompletePredictions.iterator();
        ArrayList resultList = new ArrayList<>(autocompletePredictions.getCount());
        while (iterator.hasNext()) {
            AutocompletePrediction prediction = iterator.next();
            resultList.add(new PlaceAutocomplete(prediction.getPlaceId(),
                    prediction.getFullText(null)));
        }
        // Buffer release
        autocompletePredictions.release();
        return resultList;
    }
    Log.e(TAG, "Google API client is not connected.");
    return null;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
 * Method to call API for each user input
 * @param constraint User input character string
 * @return ArrayList containing suggestion results
 */
private ArrayList<PlaceAutoComplete> getAutoComplete(CharSequence constraint){
    if(mGoogleApiClient.isConnected()){
        //Making a query and fetching result in a pendingResult

        PendingResult<AutocompletePredictionBuffer> results= Places.GeoDataApi
                .getAutocompletePredictions(mGoogleApiClient,constraint.toString(),mBounds,mPlaceFilter);

        //Block and wait for 60s for a result
        AutocompletePredictionBuffer autocompletePredictions=results.await(60, TimeUnit.SECONDS);

        final Status status=autocompletePredictions.getStatus();

        // Confirm that the query completed successfully, otherwise return null
        if(!status.isSuccess()){
            Log.e(TAG, "Error getting autocomplete prediction API call: " + status.toString());
            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();
            resultList.add(new PlaceAutoComplete(prediction.getPlaceId(),prediction.getPrimaryText(null),prediction.getSecondaryText(null)));
        }
        autocompletePredictions.release();
        return resultList;
    }else{
        Log.e(TAG,"GoogleApiClient Not Connected");
        return  null;
    }
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
private ArrayList<PlaceAutocomplete> getPredictions(CharSequence constraint) {
    if (mGoogleApiClient != null) {
        Log.i(TAG, "Executing autocomplete query for: " + constraint);
        PendingResult<AutocompletePredictionBuffer> results =
                Places.GeoDataApi
                        .getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
                                mBounds, mPlaceFilter);
        // Wait for predictions, set the timeout.
        AutocompletePredictionBuffer autocompletePredictions = results
                .await(60, TimeUnit.SECONDS);
        final Status status = autocompletePredictions.getStatus();
        if (!status.isSuccess()) {
            Toast.makeText(getContext(), "Error: " + status.toString(),
                    Toast.LENGTH_SHORT).show();
            Log.e(TAG, "Error getting place predictions: " + status
                    .toString());
            autocompletePredictions.release();
            return null;
        }

        Log.i(TAG, "Query completed. Received " + autocompletePredictions.getCount()
                + " predictions.");
        Iterator<AutocompletePrediction> iterator = autocompletePredictions.iterator();
        ArrayList resultList = new ArrayList<>(autocompletePredictions.getCount());
        while (iterator.hasNext()) {
            AutocompletePrediction prediction = iterator.next();
            resultList.add(new PlaceAutocomplete(prediction.getPlaceId(),
                    prediction.getFullText(null)));
        }
        // Buffer release
        autocompletePredictions.release();
        return resultList;
    }
    Log.e(TAG, "Google API client is not connected.");
    return null;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
 * Submits an autocomplete query to the Places Geo Data Autocomplete API.
 * Results are returned as frozen AutocompletePrediction objects, ready to be cached.
 * 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)
 * @see AutocompletePrediction#freeze()
 */
private ArrayList<AutocompletePrediction> 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.
        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.toString());
            autocompletePredictions.release();
            return null;
        }

        Log.i(TAG, "Query completed. Received " + autocompletePredictions.getCount()
                + " predictions.");

        // Freeze the results immutable representation that can be stored safely.
        return DataBufferUtils.freezeAndClose(autocompletePredictions);
    }
    Log.e(TAG, "Google API client is not connected for autocomplete query.");
    return null;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
     * Submits an autocomplete query to the Places Geo Data Autocomplete API.
     * Results are returned as frozen AutocompletePrediction objects, ready to be cached.
     * 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 statusComplete
     * 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)
     * @see AutocompletePrediction#freeze()
     */
    private ArrayList<AutocompletePrediction> getAutocomplete(CharSequence constraint) {
        if (mGoogleApiClient.isConnected()) {
//
//            constraint = constraint  + " " +mConstraint;
            // Submit the query to the autocomplete API and retrieve a PendingResult that will
            // contain the results when the query completes.
            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(), "Check your internet connection", Toast.LENGTH_SHORT).show();
                autocompletePredictions.release();
                return null;
            }


            // Freeze the results immutable representation that can be stored safely.
            return DataBufferUtils.freezeAndClose(autocompletePredictions);
        }
        return null;
    }
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
 * Submits an autocomplete query to the Places Geo Data Autocomplete API.
 * Results are returned as frozen AutocompletePrediction objects, ready to be cached.
 * 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)
 * @see AutocompletePrediction#freeze()
 */
private ArrayList<AutocompletePrediction> getAutocomplete(CharSequence constraint) {
    if (mGoogleApiClient.isConnected()) {

        // Submit the query to the autocomplete API and retrieve a PendingResult that will
        // contain the results when the query completes.
        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();
            autocompletePredictions.release();
            return null;
        }


        // Freeze the results immutable representation that can be stored safely.
        return DataBufferUtils.freezeAndClose(autocompletePredictions);
    }
    return null;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
     * Submits an autocomplete query to the Places Geo Data Autocomplete API.
     * Results are returned as frozen AutocompletePrediction objects, ready to be cached.
     * 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)
     * @see AutocompletePrediction#freeze()
     */
    private ArrayList<AutocompletePrediction> 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.
            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.toString());
                autocompletePredictions.release();
                return null;
            }

//            Log.i(TAG, "Query completed. Received " + autocompletePredictions.getCount()
//                    + " predictions.");

            // Freeze the results immutable representation that can be stored safely.
            return DataBufferUtils.freezeAndClose(autocompletePredictions);
        }
//        Log.e(TAG, "Google API client is not connected for autocomplete query.");
        return null;
    }
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
private void displayPredictiveResults( String query )
{
    //Southwest corner to Northeast corner.
    LatLngBounds bounds = new LatLngBounds( new LatLng( 39.906374, -105.122337 ), new LatLng( 39.949552, -105.068779 ) );

    //Filter: https://developers.google.com/places/supported_types#table3
    List<Integer> filterTypes = new ArrayList<Integer>();
    filterTypes.add( Place.TYPE_ESTABLISHMENT );

    Places.GeoDataApi.getAutocompletePredictions( mGoogleApiClient, query, bounds, AutocompleteFilter.create( filterTypes ) )
        .setResultCallback (
            new ResultCallback<AutocompletePredictionBuffer>() {
                @Override
                public void onResult( AutocompletePredictionBuffer buffer ) {

                    if( buffer == null )
                        return;

                    if( buffer.getStatus().isSuccess() ) {
                        for( AutocompletePrediction prediction : buffer ) {
                            //Add as a new item to avoid IllegalArgumentsException when buffer is released
                            add( new AutoCompletePlace( prediction.getPlaceId(), prediction.getDescription() ) );
                        }
                    }

                    //Prevent memory leak by releasing buffer
                    buffer.release();
                }
            }, 60, TimeUnit.SECONDS );
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
public Observable<Iterable<AutocompletePrediction>> queryAutocompletion(final String s) {
    if (!googleApiClient.isConnected()) {
        Timber.w("GoogleApiClient is not connected");
        return Observable.empty();
    }

    return Observable.create(new Observable.OnSubscribe<Iterable<AutocompletePrediction>>() {
        @Override
        public void call(final Subscriber<? super Iterable<AutocompletePrediction>> subscriber) {
            LatLngBounds bounds = LatLngBounds.builder()
                    .include(location)
                    .build();

            final PendingResult<AutocompletePredictionBuffer> result = Places.GeoDataApi
                    .getAutocompletePredictions(googleApiClient, s, bounds, null);

            result.setResultCallback(new ResultCallback<AutocompletePredictionBuffer>() {
                @Override
                public void onResult(AutocompletePredictionBuffer autocompletePredictions) {
                    subscriber.onNext(autocompletePredictions);
                    autocompletePredictions.release();
                    subscriber.onCompleted();
                }
            });
        }
    });
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
 * 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.
        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(), "Please check your internet connection", 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.getFullText(null)));
        }

        // 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;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
public Observable<Collection<NiboSearchSuggestionItem>> getSuggestions(final String query) {
    final List<NiboSearchSuggestionItem> placeSuggestionItems = new ArrayList<>();

    if (mGoogleApiClient == null) {
        Log.d(TAG, "Google play services cannot be null");
    }

    return new Observable<Collection<NiboSearchSuggestionItem>>() {
        @Override
        protected void subscribeActual(final Observer<? super Collection<NiboSearchSuggestionItem>> observer) {
            Places.GeoDataApi.getAutocompletePredictions(mGoogleApiClient, query, null, null)
                    .setResultCallback(
                            new ResultCallback<AutocompletePredictionBuffer>() {
                                @Override
                                public void onResult(@NonNull AutocompletePredictionBuffer buffer) {
                                    placeSuggestionItems.clear();
                                    if (buffer.getStatus().isSuccess()) {
                                        Log.d(TAG, buffer.toString() + " " + buffer.getCount());

                                        for (AutocompletePrediction prediction : buffer) {
                                            Log.d(TAG, prediction.getFullText(null).toString());
                                            //Add as a new item to avoid IllegalArgumentsException when buffer is released
                                            NiboSearchSuggestionItem placeSuggestion = new NiboSearchSuggestionItem(
                                                    prediction.getFullText(null).toString(),
                                                    prediction.getPlaceId(), NiboSearchSuggestionItem.TYPE_SEARCH_ITEM_SUGGESTION,
                                                    mContext.getResources().getDrawable(R.drawable.ic_map_marker_def)
                                            );

                                            placeSuggestionItems.add(placeSuggestion);
                                        }

                                        observer.onNext(placeSuggestionItems);

                                    } else {
                                        Log.d(TAG, buffer.toString());
                                    }
                                    //Prevent memory leak by releasing buffer
                                    buffer.release();
                                }
                            }, 60, TimeUnit.SECONDS);

        }
    };
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
     * Submits an autocomplete query to the Places Geo Data Autocomplete API.
     * 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()) {

            // Submit the query to the autocomplete API and retrieve a PendingResult that will
            // contain the results when the query completes.
            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()) {
                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;
    }
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
 * 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.
        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;
}
 

import com.google.android.gms.location.places.AutocompletePredictionBuffer; //导入依赖的package包/类
/**
 * Submits an autocomplete query to the Places Geo Data Autocomplete API.
 * Results are returned as PlaceAutocomplete 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 != null) {

        // Submit the query to the autocomplete API and retrieve a PendingResult that will
        // contain the results when the query completes.
        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();
            autocompletePredictions.release();
            return null;
        }


        // 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;
    }
    return null;
}