Google Maps AutoComplete Test codenameone

GoogleMapsAutoCompleteTest.java

package com.mycompany.myapp; // change to your package

import com.codename1.io.ConnectionRequest;
import com.codename1.io.JSONParser;
import com.codename1.io.NetworkManager;
import com.codename1.ui.*;
import com.codename1.ui.layouts.BoxLayout;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.Resources;
import com.codename1.util.Callback;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.Map;

public class GoogleMapsAutoCompleteTest {
    private static final String MAPS_KEY = "Your_Key"; // Your maps key here
    private Form current;

    public void init(Object context) {
        try {
            Resources theme = Resources.openLayered("/theme");
            UIManager.getInstance().setThemeProps(theme.getTheme(theme.getThemeResourceNames()[0]));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void start() {
        if (current != null) {
            current.show();
            return;
        }
        Form hi = new Form("Maps AutoComplete Test");
        hi.setLayout(new BoxLayout(BoxLayout.Y_AXIS));
        TextField textField = new TextField("");
        textField.setHint("Address");
        hi.add(textField);

        Button address = new Button("Get AutoComplete");
        address.addActionListener(evt -> {
            String text = textField.getText();
            ArrayList<String> list = getAutoComplete(textField.getText(), "en", "address");
            for (int i = 0; i < list.size(); i++) {
                hi.add(new Label(list.get(i)));
            }
            hi.revalidate();
        });
        hi.add(address);


        hi.show();
    }

    public void stop() {
        current = Display.getInstance().getCurrent();
    }

    public void destroy() {
    }


    public static ArrayList<String> getAutoComplete(String input, String language, String types) {
        ArrayList<String> ret = new ArrayList<>();
        try {
            ConnectionRequest request = new ConnectionRequest("https://maps.googleapis.com/maps/api/place/autocomplete/json", false);
            request.addArgument("key", MAPS_KEY);
            request.addArgument("input", input);
            request.addArgument("types", types);
            request.addArgument("language", language);

            NetworkManager.getInstance().addToQueueAndWait(request);
            Map<String, Object> response = new JSONParser().parseJSON(new InputStreamReader(new ByteArrayInputStream(request.getResponseData()), "UTF-8"));
            if (response.get("predictions") != null) {
                ArrayList results = (ArrayList) response.get("predictions");
                if (results.size() > 0)
                    for (int i = 0; i < results.size(); i++) {
                        ret.add((String) ((LinkedHashMap) results.get(i)).get("description"));
                    }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return ret;
    }

    public static void getAutoCompleteAsync(String input, String language, String types, Callback callback) {
        ConnectionRequest request = new ConnectionRequest("https://maps.googleapis.com/maps/api/place/autocomplete/json", false) {
            @Override
            protected void readResponse(InputStream input) throws IOException {
                ArrayList<String> ret = new ArrayList<>();
                Map<String, Object> response = new JSONParser().parseJSON(new InputStreamReader(input, "UTF-8"));
                if (response.get("predictions") != null) {
                    ArrayList results = (ArrayList) response.get("predictions");
                    if (results.size() > 0)
                        for (int i = 0; i < results.size(); i++) {
                            ret.add((String) ((LinkedHashMap) results.get(i)).get("description"));
                        }
                }
                callback.onSucess(ret);
            }


        };
        request.addArgument("key", MAPS_KEY);
        request.addArgument("input", input);
        request.addArgument("types", types);
        request.addArgument("language", language);

        NetworkManager.getInstance().addToQueue(request);
    }

}