MainActivity.java

package michael.com.halloween;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import java.io.File;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        File rootDataDir = getApplicationContext().getFilesDir();
        System.out.println(rootDataDir.toString());

        Button button = (Button)findViewById(R.id.start);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(MainActivity.this,MainMap.class);
                startActivity(intent);
            }
        });






    }
}