Android: pass variables to/out button anonymous class

Question

package com.example.rami.androidstudio_312332604_guessgame;

import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import org.w3c.dom.Text;

import java.util.ArrayList;
import java.util.Random;

public class MainActivity extends AppCompatActivity {
    ArrayList<Character> lettersguessed = new ArrayList<Character>();
    int counter = 6;

    private String changeCharInPosition(int position, char ch, String str) {
        char[] charArray = str.toCharArray();
        charArray[position] = ch;
        return new String(charArray);
    }

    private void start() {
        TextView errortext = (TextView) findViewById(R.id.statustext);
        Button button = (Button) findViewById(R.id.guessbt);
        TextView tv = (TextView) findViewById(R.id.guessingtext);//get the textview from the activity
        TextView testtext = (TextView) findViewById(R.id.testtext);//get the testview from the activity
        EditText edittext = (EditText) findViewById(R.id.editText);
        String[] world = getResources().getStringArray(R.array.words);// get the array from string xml
        Random rand = new Random();
        errortext.setText("");
        int randomNum = rand.nextInt(world.length);
        String country = world[randomNum];
        String s = "";
        for (int i = 0; i < country.length(); i++) {
            if (country.charAt(i) != ' ')
                s += '?';
            else
                s += ' ';
        }
        tv.setText(s);
        testtext.setText(world[randomNum]);
        button.setEnabled(true);
        //Toast toast = Toast.makeText(getApplicationContext(), points, Toast.LENGTH_LONG);
        //toast.show();
    }

    // Remove the below line after defining your own ad unit ID.
    private static final String TOAST_TEXT = "Test ads are being shown. "
            + "To show live ads, replace the ad unit ID in res/values/strings.xml with your own ad unit ID.";


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


        Button button = (Button) findViewById(R.id.guessbt);

        button.setOnClickListener(new View.OnClickListener() {

            ArrayList<Character> lettersguessed = new ArrayList<Character>();
            int counter = 6;

            private void clear() {
                ImageView img = (ImageView) findViewById(R.id.errorimg);
                TextView errortext = (TextView) findViewById(R.id.statustext);
                img.setImageResource(R.mipmap.error_num0);
                counter = 6;
                lettersguessed.clear();
                errortext.setText("");
            }

            public void onClick(View v) {

                EditText guessedtext = (EditText) findViewById(R.id.editText);
                Button button = (Button) findViewById(R.id.guessbt);
                TextView questionstext = (TextView) findViewById(R.id.guessingtext);
                TextView errortext = (TextView) findViewById(R.id.statustext);


                if (guessedtext.getText().length() != 1) {//to make sure it's one char
                    Toast toast = Toast.makeText(getApplicationContext(), "Please Enter One Char", Toast.LENGTH_SHORT);
                    toast.show();
                    guessedtext.setText("");
                    return;
                }

                String country = ((TextView) findViewById(R.id.testtext)).getText().toString();
                char uc = Character.toUpperCase(guessedtext.getText().charAt(0));
                char lc = Character.toLowerCase(guessedtext.getText().charAt(0));
                guessedtext.setText("");
                if (lettersguessed.contains(uc)) {
                    Toast toast = Toast.makeText(getApplicationContext(), "You tried that before", Toast.LENGTH_SHORT);
                    toast.show();
                    return;
                }
                lettersguessed.add(uc);
                boolean right = false;
                for (int i = 0; i < country.length(); i++) {
                    char cc = country.charAt(i);
                    if (cc == uc || cc == lc) {
                        right = true;
                        questionstext.setText(changeCharInPosition(i, cc, questionstext.getText().toString()));
                        errortext.setText("You have guessed: " + lettersguessed.toString() + " (" + counter + " tries left)");
                    }
                }
                if (!right) {
                    if (counter == 1) {
                        Toast toast = Toast.makeText(getApplicationContext(), "Game Over", Toast.LENGTH_SHORT);
                        toast.show();
                        clear();
                        //points=-20;
                        return;
                    }
                    ImageView img = (ImageView) findViewById(R.id.errorimg);
                    counter--;
                    img.setImageResource(R.mipmap.error_num1);
                    errortext.setText("You have guessed: " + lettersguessed.toString() + " (" + counter + " tries left)");
                }
                if (questionstext.getText().toString().indexOf('?') < 0) {
                    Toast toast = Toast.makeText(getApplicationContext(), "Done it!", Toast.LENGTH_SHORT);
                    toast.show();
                    button.setEnabled(false);
                    clear();
                    //points += 20;
                    return;
                }
            }
        });
        Button newtb = (Button) findViewById(R.id.newbt);
        newtb.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                start();

            }
        });

        Button giveupbt = (Button) findViewById(R.id.giveupbt);
        giveupbt.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Button button = (Button) findViewById(R.id.guessbt);
                String country = ((TextView) findViewById(R.id.testtext)).getText().toString();
                TextView guessedtext = (TextView) findViewById(R.id.guessingtext);
                guessedtext.setText(country);
                button.setEnabled(false);
            }
        });
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

}

  ArrayList<Character> lettersguessed = new ArrayList<Character>(); int counter = 6; 

**These two variables, I want to reach or to make this class vars and reach them from the anonymous class. Because I want to read this and change their value

More info: the button is the guessing button for guessing countries names game and after entering the char into edittext you click this button to make your guess.

Any Ideas?

Answer 1

Just make these two variables as final and then access them in your inner class. So it then becomes,

final ArrayList<Character> lettersguessed = new ArrayList<Character>();
final int[] counter = new int[1];
counter[0] = 6;

just replace counter by counter[0] .