Thursday, 4 May 2017

Google PlacePicker and map Example in Android

       
//You should get Your key from google developer console .

package com.example.kiit1.mymap;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.support.annotation.NonNull;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesNotAvailableException;
import com.google.android.gms.common.GooglePlayServicesRepairableException;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.places.Place;
import com.google.android.gms.location.places.Places;
import com.google.android.gms.location.places.ui.PlacePicker;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback,GoogleApiClient.OnConnectionFailedListener {
    private GoogleApiClient mGoogleApiClient;
    private GoogleMap mMap;
    protected LocationManager locationManager;
    protected LocationListener locationListener;
    protected Context context;
    double lati,longi;
    GPSTracker gps;
    Button locUpdate;
    Button placePicker;
     View rootView=null;
    private static final int REQUEST_PLACE_PICKER = 1000;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);

        mapFragment.getMapAsync(this);

        mGoogleApiClient = new GoogleApiClient
                .Builder(this)
                .addApi(Places.GEO_DATA_API)
                .addApi(Places.PLACE_DETECTION_API)
                .enableAutoManage(this, this)
                .build();

       // rootView=View.inflate(R.layout.activity_maps,getApplicationContext(),false);
        // create class object        gps = new GPSTracker(MapsActivity.this);
        rootView=mapFragment.getView();
        locUpdate=(Button) rootView.findViewById(R.id.locupdate);
        placePicker=(Button)rootView.findViewById(R.id.picker);

        // check if GPS enabled        if(gps.canGetLocation()){

            lati = gps.getLatitude();
            longi = gps.getLongitude();

            // \n is for new line            Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + lati + "\nLong: " + longi, Toast.LENGTH_LONG).show();
        }else{
            // can't get location            // GPS or Network is not enabled            // Ask user to enable GPS/network in settings            gps.showSettingsAlert();
        }

    }


    /**     * Manipulates the map once available.     * This callback is triggered when the map is ready to be used.     * This is where we can add markers or lines, add listeners or move the camera. In this case,     * we just add a marker near Sydney, Australia.     * If Google Play services is not installed on the device, the user will be prompted to install     * it inside the SupportMapFragment. This method will only be triggered once the user has     * installed Google Play services and returned to the app.     */    @Override    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        // Add a marker in Sydney and move the camera        LatLng sydney = new LatLng(lati, longi);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
        mMap.animateCamera( CameraUpdateFactory.zoomTo( 17.0f ) );
        locUpdate.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                gps = new GPSTracker(MapsActivity.this);

                locUpdate=(Button) rootView.findViewById(R.id.locupdate);

                // check if GPS enabled                if(gps.canGetLocation()){

                    lati = gps.getLatitude();
                    longi = gps.getLongitude();

                    // \n is for new line                    Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + lati + "\nLong: " + longi, Toast.LENGTH_LONG).show();
                }else{
                    // can't get location                    // GPS or Network is not enabled                    // Ask user to enable GPS/network in settings                    gps.showSettingsAlert();
                }
            }
        });
        //for place picker        placePicker.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                try {
                    PlacePicker.IntentBuilder intentBuilder =
                            new PlacePicker.IntentBuilder();
                    Intent intent = intentBuilder.build(MapsActivity.this);
                    // Start the intent by requesting a result,                    // identified by a request code.                    startActivityForResult(intent, REQUEST_PLACE_PICKER);

                } catch (GooglePlayServicesRepairableException e) {
                    // ...                } catch (GooglePlayServicesNotAvailableException e) {
                    // ...                }
            }
        });

    }

    @Override    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Toast.makeText(getApplicationContext(), "Your Connection is not there " , Toast.LENGTH_LONG).show();
    }
    @Override    protected void onActivityResult(int requestCode,
                                    int resultCode, Intent data) {

        if ( resultCode == Activity.RESULT_OK) {

            // The user has selected a place. Extract the name and address.            final Place place = PlacePicker.getPlace(data, this);

            final CharSequence name = place.getName();
            final CharSequence address = place.getAddress();
            String attributions = PlacePicker.getAttributions(data);
            if (attributions == null) {
                attributions = "";
            }
            Toast.makeText(getApplicationContext(), "Your loc= " +name+" and "+address , Toast.LENGTH_LONG).show();
           /* mViewName.setText(name);            mViewAddress.setText(address);            mViewAttributions.setText(Html.fromHtml(attributions));*/
        } else {
            super.onActivityResult(requestCode, resultCode, data);
        }
    }
}
//GPSTracker
package com.example.kiit1.mymap;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;


public class GPSTracker extends Service implements LocationListener{
    private final Context mContext;

    // flag for GPS status
    boolean isGPSEnabled = false;

    // flag for network status
    boolean isNetworkEnabled = false;

    // flag for GPS status
    boolean canGetLocation = false;

    Location location; // location
    double latitude; // latitude
    double longitude; // longitude

    // The minimum distance to change Updates in meters
    private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters

    // The minimum time between updates in milliseconds
    private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute

    // Declaring a Location Manager
    protected LocationManager locationManager;

    public GPSTracker(Context context) {
        this.mContext = context;
        getLocation();
    }

    public Location getLocation() {
        try {
            locationManager = (LocationManager) mContext
                    .getSystemService(LOCATION_SERVICE);

            // getting GPS status
            isGPSEnabled = locationManager
                    .isProviderEnabled(LocationManager.GPS_PROVIDER);

            // getting network status
            isNetworkEnabled = locationManager
                    .isProviderEnabled(LocationManager.NETWORK_PROVIDER);

            if (!isGPSEnabled && !isNetworkEnabled) {
                // no network provider is enabled
            } else {
                this.canGetLocation = true;
                // First get location from Network Provider
                if (isNetworkEnabled) {
                    locationManager.requestLocationUpdates(
                            LocationManager.NETWORK_PROVIDER,
                            MIN_TIME_BW_UPDATES,
                            MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                    Log.d("Network", "Network");
                    if (locationManager != null) {
                        location = locationManager
                                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                        if (location != null) {
                            latitude = location.getLatitude();
                            longitude = location.getLongitude();
                        }
                    }
                }
                // if GPS Enabled get lat/long using GPS Services
                if (isGPSEnabled) {
                    if (location == null) {
                        locationManager.requestLocationUpdates(
                                LocationManager.GPS_PROVIDER,
                                MIN_TIME_BW_UPDATES,
                                MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                        Log.d("GPS Enabled", "GPS Enabled");
                        if (locationManager != null) {
                            location = locationManager
                                    .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                            if (location != null) {
                                latitude = location.getLatitude();
                                longitude = location.getLongitude();
                            }
                        }
                    }
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

        return location;
    }

    /**
     * Stop using GPS listener
     * Calling this function will stop using GPS in your app
     * */
    public void stopUsingGPS(){
        if(locationManager != null){
            locationManager.removeUpdates(GPSTracker.this);
        }
    }

    /**
     * Function to get latitude
     * */
    public double getLatitude(){
        if(location != null){
            latitude = location.getLatitude();
        }

        // return latitude
        return latitude;
    }

    /**
     * Function to get longitude
     * */
    public double getLongitude(){
        if(location != null){
            longitude = location.getLongitude();
        }

        // return longitude
        return longitude;
    }

    /**
     * Function to check GPS/wifi enabled
     * @return boolean
     * */
    public boolean canGetLocation() {
        return this.canGetLocation;
    }

    /**
     * Function to show settings alert dialog
     * On pressing Settings button will lauch Settings Options
     * */
    public void showSettingsAlert(){
        AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);

        // Setting Dialog Title
        alertDialog.setTitle("GPS is settings");

        // Setting Dialog Message
        alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");

        // On pressing Settings button
        alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int which) {
                Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                mContext.startActivity(intent);
            }
        });

        // on pressing cancel button
        alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
            }
        });

        // Showing Alert Message
        alertDialog.show();
    }

    @Override
    public void onLocationChanged(Location location) {
    }

    @Override
    public void onProviderDisabled(String provider) {
    }

    @Override
    public void onProviderEnabled(String provider) {
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }

    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }
}



XML(UI)

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.kiit1.mymap.MapsActivity" >


    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right|bottom"
        android:text="locUdatae"
        android:id="@+id/locupdate"
        android:padding="10dp"
        android:layout_marginTop="20dp"
        android:paddingRight="10dp"/>

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="left|bottom"
        android:text="PlacePicker"
        android:id="@+id/picker"
        android:padding="10dp"
        android:layout_marginTop="20dp"
        android:paddingRight="10dp"/>
    </fragment>

Permission 
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>




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