ru.rules.Rules.java Source code

Introduction

Here is the source code for ru.rules.Rules.java

Source

/*
 * Copyright (C) 2010 Denis Smolyar
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 */

package ru.rules;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class Rules extends Activity {
    private List<Data> data;
    private Integer answers = 0;
    private Iterator itr;

    private Button.OnClickListener onClickNext = new Button.OnClickListener() {
        public void onClick(View w) {
            nextQuestion();
        }
    };

    private Button.OnClickListener onClickCorrectNext = new Button.OnClickListener() {
        public void onClick(View w) {
            correctAnswer();
            nextQuestion();
        }
    };

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        ImageView image = (ImageView) findViewById(R.id.image);
        //    image.setImageResource (R.drawable.icon);

        setContentView(R.layout.main);
        start();
    }

    private void start() {
        try {
            parseData();
        } catch (IOException e) {
            AlertDialog.Builder dialog = new AlertDialog.Builder(this);
            dialog.setTitle("Exception Occured");
            dialog.setMessage(e.getMessage());
            dialog.setNeutralButton("Cool", null);
            dialog.create().show();

            Log.d(this.toString(), e.getMessage());
            e.printStackTrace();
        } catch (JSONException e) {
            AlertDialog.Builder dialog = new AlertDialog.Builder(this);
            dialog.setTitle("Exception Occured");
            dialog.setMessage(e.getMessage());
            dialog.setNeutralButton("Cool", null);
            dialog.create().show();

            Log.d(this.toString(), e.getMessage());
            e.printStackTrace();
        }

        answers = 0;
        nextQuestion();
    }

    private void parseData() throws IOException, JSONException {
        InputStream is = this.getResources().openRawResource(R.raw.data);

        byte[] buffer = new byte[is.available()];
        while (is.read(buffer) != -1)
            ;
        String jsontext = new String(buffer);
        JSONArray entries = new JSONArray(jsontext);

        data = new ArrayList<Data>();

        for (int i = 0; i < entries.length(); i++) {
            JSONObject post = entries.getJSONObject(i);
            Data d = new Data();

            d.image = post.getString("image");
            d.text1 = post.getString("text1");
            d.text2 = post.getString("text2");
            d.text3 = post.getString("text3");
            d.text4 = post.getString("text4");
            d.question = post.getString("question");
            d.correctAnswer = post.getInt("correctAnswer");

            data.add(d);
        }

        itr = data.iterator();
    }

    private void nextQuestion() {
        if (!itr.hasNext()) {
            showResult();
            return;
        }

        Data d = (Data) itr.next();
        Button btn1 = (Button) findViewById(R.id.button1);
        Button btn2 = (Button) findViewById(R.id.button2);
        Button btn3 = (Button) findViewById(R.id.button3);
        Button btn4 = (Button) findViewById(R.id.button4);
        TextView tv = (TextView) findViewById(R.id.text);

        btn1.setText(d.text1);
        btn1.setOnClickListener(onClickNext);
        btn2.setText(d.text2);
        btn2.setOnClickListener(onClickNext);
        btn3.setText(d.text3);
        btn3.setOnClickListener(onClickNext);
        btn4.setText(d.text4);
        btn4.setOnClickListener(onClickNext);
        tv.setText(d.question);

        switch (d.correctAnswer) {
        case 1:
            btn1.setOnClickListener(onClickCorrectNext);
            break;
        case 2:
            btn2.setOnClickListener(onClickCorrectNext);
            break;
        case 3:
            btn3.setOnClickListener(onClickCorrectNext);
            break;
        case 4:
            btn4.setOnClickListener(onClickCorrectNext);
            break;
        }
    }

    private void correctAnswer() {
        answers += 1;
    }

    private void showResult() {
        AlertDialog.Builder dialog = new AlertDialog.Builder(this);
        DialogInterface.OnClickListener onClick = new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                start();
            }
        };

        dialog.setTitle("");
        dialog.setMessage(" : " + answers.toString());
        dialog.setNeutralButton("  ", onClick);
        dialog.create().show();
    }
}