MainActivity.java

package com.SydneyMinyanimAndroid;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.graphics.Typeface;
import android.location.Location;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.tasks.OnSuccessListener;

import java.util.ArrayList;
import java.util.Arrays;

import static android.Manifest.permission.ACCESS_FINE_LOCATION;

public class MainActivity extends AppCompatActivity {

    private final int amountOfShules = 17;
    private final double[] distanceArray = new double[amountOfShules];
    private final double[] unOrderedDistanceArray = new double[amountOfShules];
    private final String[] orderedDistanceArray = new String[amountOfShules];
    private final double[] shuleLocations = new double[amountOfShules * 2];
    private final String[] shuleNames = new String[amountOfShules];
    private final Button buttons[] = new Button[amountOfShules];
    private static double userLat = 0;
    private static double userLong = 0;
    private Button distanceButton;
    private Button favouriteButton;
    private LinearLayout favouriteLayout;
    private ScrollView scrollView1;
    LinearLayout scrollLayout;
    public static ArrayList<String> favouriteList;
    static SharedPreferences prefs;
    LinearLayout noShuleLayout;

    @SuppressLint("ClickableViewAccessibility")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        SharedData sharedData = new SharedData();
        prefs = getSharedPreferences("list", Context.MODE_PRIVATE);
        final String PREFS_NAME = "MyPrefsFile";
        SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);

        if (settings.getBoolean("my_first_time", true)) {
            //the app is being launched for first time, do something
            Log.d("savingTest", "First time");

            favouriteList = new ArrayList<>();
            sharedData.saveList(favouriteList, "list");

            //load first time start
            Intent myIntent = new Intent(getBaseContext(), IntroPictures.class);
            startActivityForResult(myIntent, 1);
            Log.d("gpstest", "Started Intent");

            // Record and store app has been opened for the first time
            settings.edit().putBoolean("my_first_time", false).apply();
        }

        setContentView(R.layout.activity_main);
        getWindow().getDecorView().setBackgroundColor(Color.WHITE);
        Log.d("gpstest", "Set activity main");

        setButtons();
        setButtonClicks();
        setFonts();
        getDistances();

        sharedData.loadList("list");

        final LinearLayout noShuleLayout = findViewById(R.id.noShuleLayout);
        Button noFavouriteButton = (Button) getLayoutInflater().inflate(R.layout.borderless_button_style, null);
        noFavouriteButton.setBackgroundResource(R.drawable.nofavouritedshules);
        noShuleLayout.addView(noFavouriteButton);

        LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) noShuleLayout.getLayoutParams();
        params.width = 800;
        params.height = 800;
        params.gravity = Gravity.CENTER_HORIZONTAL;
        params.topMargin = 180;
        noFavouriteButton.setLayoutParams(params);

        scrollLayout = findViewById(R.id.scollViewLinearLayout);

        scrollView1 = findViewById(R.id.scrollView1);
        favouriteLayout = findViewById(R.id.favouriteLayout);


        distanceButton.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                switch (event.getAction()) {
                    case MotionEvent.ACTION_DOWN:
                        distanceButton.setBackgroundResource(R.color.pressed_pressed);
                        break;
                    case MotionEvent.ACTION_MOVE:
                        distanceButton.setBackgroundResource(R.color.pressed);
                        break;
                    case MotionEvent.ACTION_UP:
                        distanceButton.setBackgroundResource(R.color.pressed);
                        favouriteButton.setBackgroundResource(R.color.unpressed);
                        ScrollView scrollView1 = findViewById(R.id.scrollView1);
                        scrollView1.setVisibility(View.VISIBLE);
                        LinearLayout linearLayout = findViewById(R.id.noShuleLayout);
                        linearLayout.setVisibility(View.GONE);
                        setButtons();
                        setButtonClicks();
                        getDistances();
                        break;
                }
                return true;
            }
        });

        favouriteButton.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                switch (event.getAction()) {
                    case MotionEvent.ACTION_DOWN:
                        favouriteButton.setBackgroundResource(R.color.pressed_pressed);
                        break;
                    case MotionEvent.ACTION_MOVE:
                        favouriteButton.setBackgroundResource(R.color.pressed);
                        break;
                    case MotionEvent.ACTION_UP:
                        distanceButton.setBackgroundResource(R.color.unpressed);
                        favouriteButton.setBackgroundResource(R.color.pressed);
                        scrollView1.setVisibility(View.GONE);
                        if (favouriteList == null || favouriteList.size() == 0) {
                            noShuleLayout.setVisibility(View.VISIBLE);
                        } else {
                            noShuleLayout.setVisibility(View.GONE);
                            favouriteLayout.removeAllViews();
                            favouriteLayout.setVisibility(View.VISIBLE);
                            getFavourites();
                        }
                        break;
                }

                return true;
            }
        });
    }

    private void setButtons() {

        buttons[0] = findViewById(R.id.Button1);
        buttons[1] = findViewById(R.id.Button2);
        buttons[2] = findViewById(R.id.Button3);
        buttons[3] = findViewById(R.id.Button4);
        buttons[4] = findViewById(R.id.Button5);
        buttons[5] = findViewById(R.id.Button6);
        buttons[6] = findViewById(R.id.Button7);
        buttons[7] = findViewById(R.id.Button8);
        buttons[8] = findViewById(R.id.Button9);
        buttons[9] = findViewById(R.id.Button10);
        buttons[10] = findViewById(R.id.Button11);
        buttons[11] = findViewById(R.id.Button12);
        buttons[12] = findViewById(R.id.Button13);
        buttons[13] = findViewById(R.id.Button14);
        buttons[14] = findViewById(R.id.Button15);
        buttons[15] = findViewById(R.id.Button16);
        buttons[16] = findViewById(R.id.Button17);

        distanceButton = findViewById(R.id.DistanceButton);
        favouriteButton = findViewById(R.id.FavouriteButton);

        distanceButton.setBackgroundResource(R.color.pressed);
        favouriteButton.setBackgroundResource(R.color.unpressed);
    }

    private void setButtonClicks() {
        final Intent myIntent = new Intent(getBaseContext(), ShuleInfo.class);
        buttons[0].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[0]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[0]);
                /*ActivityOptions options = ActivityOptions
                        .makeSceneTransitionAnimation(this, androidRobotView, "robot");
                // start the new activity
                startActivity(myIntent, options.toBundle());*/
            }
        });

        buttons[1].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[1]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[1]);
            }
        });
        buttons[2].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[2]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[2]);
            }
        });
        buttons[3].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[3]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[3]);
            }
        });
        buttons[4].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[4]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[4]);
            }
        });
        buttons[5].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[5]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[5]);
            }
        });
        buttons[6].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[6]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[6]);
            }
        });
        buttons[7].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[7]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[7]);
            }
        });
        buttons[8].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[8]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[8]);
            }
        });
        buttons[9].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[9]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[9]);
            }
        });
        buttons[10].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[10]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[10]);
            }
        });
        buttons[11].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[11]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[11]);
            }
        });
        buttons[12].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[12]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[12]);
            }
        });
        buttons[13].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[13]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[13]);
            }
        });
        buttons[14].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[14]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[14]);
            }
        });
        buttons[15].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[15]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[15]);
            }
        });
        buttons[16].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myIntent.putExtra("shuleName", orderedDistanceArray[16]);
                startActivity(myIntent);
                Log.d("gpstest", "Send shuleName: " + orderedDistanceArray[16]);
            }
        });
    }

    private void getDistances() {

        shuleNames[0] = "Central";
        shuleLocations[0] = -33.8904745; //Central Latitude
        shuleLocations[1] = 151.2545533; //Central Longitude
        shuleNames[1] = "Kadima";
        shuleLocations[2] = -33.8681211; //Kadima Latitude
        shuleLocations[3] = 151.2748677; //Kadima Longitude
        shuleNames[2] = "Bina";
        shuleLocations[4] = -33.883901; //Bina Latitude
        shuleLocations[5] = 151.268890; //Bina Longitude
        shuleNames[3] = "Bnei";
        shuleLocations[6] = -33.8839295; //Bnei Latitude
        shuleLocations[7] = 151.2668573; //Bnei Longitude
        shuleNames[4] = "Mizrachi";
        shuleLocations[8] = -33.8839295; //Mizrachi Latitude
        shuleLocations[9] = 151.2668574; //Mizrachi Longitude
        shuleNames[5] = "Masada";
        shuleLocations[10] = -33.7296121; //Masada Latitude
        shuleLocations[11] = 151.1662828; //Masada Longitude
        shuleNames[6] = "Moriah";
        shuleLocations[12] = -33.899280; //Moriah Latitude
        shuleLocations[13] = 151.246600; //Moriah Longitude
        shuleNames[7] = "The Great";
        shuleLocations[14] = -33.872570; //The Great Latitude
        shuleLocations[15] = 151.2094600; //The Great Longitude
        shuleNames[8] = "Yeshiva";
        shuleLocations[16] = -33.891830; //Yeshiva Latitude
        shuleLocations[17] = 151.259390; //Yeshiva Longitude
        shuleNames[9] = "Dover";
        shuleLocations[18] = -33.872700; //Dover Heights Latitude
        shuleLocations[19] = 151.281870; //Dover Heights Longitude
        shuleNames[10] = "Nefesh";
        shuleLocations[20] = -33.8947576; //Nefesh Latitude
        shuleLocations[21] = 151.2707676; //Nefesh Longitude
        shuleNames[11] = "JLC";
        shuleLocations[22] = -33.8851085; //JLC Latitude
        shuleLocations[23] = 151.2741983; //JLC Longitude
        shuleNames[12] = "Sephardi";
        shuleLocations[24] = -33.888820; //Sephardi Latitude
        shuleLocations[25] = 151.254020; //Sephardi Longitude
        shuleNames[13] = "Tzemach Tzedek";
        shuleLocations[26] = -33.889931; //Tzemach Latitude
        shuleLocations[27] = 151.261765; //Tzemach Longitude
        shuleNames[14] = "Coogee";
        shuleLocations[28] = -33.921815; //Coogee Latitude
        shuleLocations[29] = 151.2523163; //Coogee Longitude
        shuleNames[15] = "Maroubra";
        shuleLocations[30] = -33.9357435; //Maroubra Latitude
        shuleLocations[31] = 151.2351443; //Maroubra Longitude
        shuleNames[16] = "Free";
        shuleLocations[32] = -33.8903909; //Free Latitude
        shuleLocations[33] = 151.2599281; //Free Longitude

        FusedLocationProviderClient fuseClient = LocationServices.getFusedLocationProviderClient(this);

        if (ActivityCompat.checkSelfPermission(MainActivity.this, ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        fuseClient.getLastLocation().addOnSuccessListener(MainActivity.this, new OnSuccessListener<Location>() {
            @Override
            public void onSuccess(Location location) {
                if (!(location == null)) {
                    userLong = location.getLongitude();
                    Log.d("gpstest","Long: " + userLong);
                    userLat = location.getLatitude();
                    Log.d("gpstest","Lat: " + userLat);

                    for (int i = 0; i < amountOfShules; i++) {
                        distanceArray[i] = distanceInKmBetweenEarthCoordinates(userLat, userLong, shuleLocations[i * 2], shuleLocations[(i * 2) + 1]);
                    }

                    for (int i = 0; i < amountOfShules; i++) {
                        unOrderedDistanceArray[i] = distanceInKmBetweenEarthCoordinates(userLat, userLong, shuleLocations[i * 2], shuleLocations[(i * 2) + 1]);
                    }

                    Arrays.sort(distanceArray);

                    for (int i = 0; i < amountOfShules; i++) {
                        Log.d("gpstest", "Distance Array: " + String.valueOf(distanceArray[i]));
                        for (int j = 0; j < distanceArray.length; j++) {
                            Log.d("gpstest", "Unordered Distance Array: " + String.valueOf(unOrderedDistanceArray[j]));
                            if (distanceArray[i] == unOrderedDistanceArray[j]) {
                                orderedDistanceArray[i] = shuleNames[j];
                                Log.d("gpstest", "Shule Name: " + String.valueOf(shuleNames[j]));
                            }
                        }
                    }

                    for (int i = 0; i < amountOfShules; i++) {
                        switch (orderedDistanceArray[i]) {
                            case "Central":
                                buttons[i].setBackgroundResource(R.drawable.central);
                                break;
                            case "Kadima":
                                buttons[i].setBackgroundResource(R.drawable.kadima);
                                break;
                            case "Bina":
                                buttons[i].setBackgroundResource(R.drawable.bina);
                                break;
                            case "Bnei":
                                buttons[i].setBackgroundResource(R.drawable.bnei);
                                break;
                            case "Mizrachi":
                                buttons[i].setBackgroundResource(R.drawable.mizrachi);
                                break;
                            case "Masada":
                                buttons[i].setBackgroundResource(R.drawable.masada);
                                break;
                            case "Moriah":
                                buttons[i].setBackgroundResource(R.drawable.moriah);
                                break;
                            case "The Great":
                                buttons[i].setBackgroundResource(R.drawable.the_great);
                                break;
                            case "Yeshiva":
                                buttons[i].setBackgroundResource(R.drawable.yeshiva);
                                break;
                            case "Dover":
                                buttons[i].setBackgroundResource(R.drawable.dover_heights);
                                break;
                            case "Nefesh":
                                buttons[i].setBackgroundResource(R.drawable.nefesh);
                                break;
                            case "JLC":
                                buttons[i].setBackgroundResource(R.drawable.jlc);
                                break;
                            case "Sephardi":
                                buttons[i].setBackgroundResource(R.drawable.sephardi);
                                break;
                            case "Tzemach Tzedek":
                                buttons[i].setBackgroundResource(R.drawable.tzemach_tzedek);
                                break;
                            case "Coogee":
                                buttons[i].setBackgroundResource(R.drawable.coogee);
                                break;
                            case "Maroubra":
                                buttons[i].setBackgroundResource(R.drawable.maroubra);
                                break;
                            case "Free":
                                buttons[i].setBackgroundResource(R.drawable.chabad);
                                break;
                        }

                    }
                }
            }
        });
    }

    private double degreesToRadians(double degrees) {
        return degrees * Math.PI / 180;
    }

    private double distanceInKmBetweenEarthCoordinates(double lat1, double lon1, double lat2, double lon2) {
        int earthRadiusKm = 6371;

        double dLat = degreesToRadians(lat2 - lat1);
        double dLon = degreesToRadians(lon2 - lon1);

        lat1 = degreesToRadians(lat1);
        lat2 = degreesToRadians(lat2);

        double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
                Math.sin(dLon / 2) * Math.sin(dLon / 2) * Math.cos(lat1) * Math.cos(lat2);
        double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
        return earthRadiusKm * c;
    }

    private void setFonts() {
        Typeface typeface = Typeface.createFromAsset(getAssets(), "futura.otf");
        TextView title = findViewById(R.id.Title);
        distanceButton.setTypeface(typeface);
        favouriteButton.setTypeface(typeface);
        title.setTypeface(typeface);
    }

    private void getFavourites() {
        for (int i = 0; i < favouriteList.size(); i++) {
            @SuppressLint("InflateParams") Button favouriteButton = (Button) getLayoutInflater().inflate(R.layout.favourite_button_template, null);
            final Intent myIntent = new Intent(getBaseContext(), ShuleInfo.class);
            final int I = i;

            //detects name of shule and sets according image
            switch (favouriteList.get(i)) {
                case "Central":
                    favouriteButton.setBackgroundResource(R.drawable.central);
                    break;
                case "Kadima":
                    favouriteButton.setBackgroundResource(R.drawable.kadima);
                    break;
                case "Bina":
                    favouriteButton.setBackgroundResource(R.drawable.bina);
                    break;
                case "Bnei":
                    favouriteButton.setBackgroundResource(R.drawable.bnei);
                    break;
                case "Mizrachi":
                    favouriteButton.setBackgroundResource(R.drawable.mizrachi);
                    break;
                case "Masada":
                    favouriteButton.setBackgroundResource(R.drawable.masada);
                    break;
                case "Moriah":
                    favouriteButton.setBackgroundResource(R.drawable.moriah);
                    break;
                case "The Great":
                    favouriteButton.setBackgroundResource(R.drawable.the_great);
                    break;
                case "Yeshiva":
                    favouriteButton.setBackgroundResource(R.drawable.yeshiva);
                    break;
                case "Dover":
                    favouriteButton.setBackgroundResource(R.drawable.dover_heights);
                    break;
                case "Nefesh":
                    favouriteButton.setBackgroundResource(R.drawable.nefesh);
                    break;
                case "JLC":
                    favouriteButton.setBackgroundResource(R.drawable.jlc);
                    break;
                case "Sephardi":
                    favouriteButton.setBackgroundResource(R.drawable.sephardi);
                    break;
                case "Tzemach Tzedek":
                    favouriteButton.setBackgroundResource(R.drawable.tzemach_tzedek);
                    break;
                case "Coogee":
                    favouriteButton.setBackgroundResource(R.drawable.coogee);
                    break;
                case "Maroubra":
                    favouriteButton.setBackgroundResource(R.drawable.maroubra);
                    break;
                case "Free":
                    favouriteButton.setBackgroundResource(R.drawable.chabad);
                    break;
            }
            favouriteLayout.addView(favouriteButton);
            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(788, (788 / 3) * 2);
            layoutParams.setMargins(0, 27, 0, 0);
            favouriteButton.setLayoutParams(layoutParams);
            favouriteButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    myIntent.putExtra("shuleName", String.valueOf(favouriteList.get(I)));
                    startActivity(myIntent);
                }
            });
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        if (requestCode == 1) {
            if(resultCode == Activity.RESULT_OK){
                getDistances();
            }
            if (resultCode == Activity.RESULT_CANCELED) {
                getDistances();
            }
        }
    }//onActivityResult
}