Android Open Source - AndroidQuiz Cheat Activity

• Back to Development/book  ↑

From Project

Back to project page AndroidQuiz.

License

The source code is released under:

MIT License

Java Source Code

package com.bignerdranch.android.androidquiz;
/* w w w  .ja  v  a2s  . c  o m*/
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;


public class CheatActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_cheat);
        boolean mAnswerIsTrue = getIntent().getBooleanExtra(EXTRA_ANSWER_IS_TRUE, false);
        mAnswerTextView = (TextView)findViewById(R.id.answerTextView);
        recoverState(savedInstanceState);
        setAnswerShownResult(mCheated);
        setupButtons(mAnswerIsTrue);
    }
    private void setupButtons(final boolean answerIsTrue) {
        mShowAnswer = (Button)findViewById(R.id.showAnswerButton);
        mShowAnswer.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v){
                mCheated = true;
                setText(answerIsTrue);
                setAnswerShownResult(mCheated);
            }
        });
    }
    private void recoverState(Bundle savedInstanceState) {
        if (savedInstanceState != null) {
            if(savedInstanceState.
                    getInt(BUTTON_PRESSED, 0) != 0) {
                mCheated = true;
                setText(mAnswerIsTrue);
            }
        }
    }
    private void setText(boolean answer) {
        if(answer) {
            mAnswerTextView.setText(R.string.true_button);
        } else {
            mAnswerTextView.setText(R.string.false_button);
        }
    }
    @Override
    public void onSaveInstanceState(@NonNull Bundle savedInstanceState) {
        super.onSaveInstanceState(savedInstanceState);
        int i = (mCheated) ? 1 : 0;
        savedInstanceState.putInt(BUTTON_PRESSED, i);
    }
    @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_cheat, 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();

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

        return super.onOptionsItemSelected(item);
    }
    private void setAnswerShownResult(boolean isAnswerShown) {
        Intent data = new Intent();
        data.putExtra(EXTRA_ANSWER_SHOWN, isAnswerShown);
        setResult(RESULT_OK, data);
    }

    private TextView mAnswerTextView;
    private Button mShowAnswer;
    private boolean mCheated = false;
    private boolean mAnswerIsTrue = false;
    public static final String EXTRA_ANSWER_IS_TRUE =
            "com.bignerdranch.android.geoquiz.answer_is_true";
    public static final String EXTRA_ANSWER_SHOWN =
            "com.bignerdranch.android.geoquiz.answer_shown";
    private static final String BUTTON_PRESSED = "pressed";
}

Java Source Code List

• Back to Development/book  ↑