memorable places

    ListView listview;
    ArrayList<String> arrayList;
    ArrayAdapter<String> arrayAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
        }

        arrayList = new ArrayList<String>();
        arrayList.add("Add new place...");

        listview = (ListView) findViewById(R.id.listView);
        arrayAdapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, arrayList);
        listview.setAdapter(arrayAdapter);
    }

    @Override
    protected void onStart() {
        super.onStart();

        boolean startedFromIntent;

        Intent i = getIntent();
        if (i.getIntExtra(getString(R.string.starting_from_intent), 0) == 5) {
            startedFromIntent = true;
        } else {
            startedFromIntent = false;
        }

        if(startedFromIntent && i.getStringExtra("address") != null) {
            arrayList.add(i.getStringExtra("address"));
            arrayAdapter.notifyDataSetChanged();
        }

        listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                Intent intent = new Intent(getApplicationContext(), MapsActivity.class);
                intent.putExtra("placeNumber", i);
                startActivity(intent);
            }
        });
    }