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- package myfirstapp.geoquiz;
- import android.support.v7.app.AppCompatActivity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.Button;
- import android.widget.TextView;
- import android.widget.Toast;
- public class QuizActivity extends AppCompatActivity {
- private Button mTrueButton;
- private Button mFalseButton;
- private Button mNextButton;
- private TextView mQuestionTextView;
- private int mCurrentIndex = 0;
- private Question[] mQuestionBank = new Question[]{
- new Question(R.string.question_oceans, true),
- new Question(R.string.question_mideast, false),
- new Question(R.string.question_africa, false),
- new Question(R.string.question_americas, true),
- new Question(R.string.question_africa, false),
- new Question(R.string.question_americas, true),
- new Question(R.string.question_asia, true)
- };
- private void updateQuestion() {
- int question = mQuestionBank[mCurrentIndex].getTextResId();
- mQuestionTextView.setText(question);
- }
- private void checkAnswer(boolean userPressedTrue) {
- boolean answerIsTrue = mQuestionBank[mCurrentIndex].isAnswerTrue();
- int messageResId = 0;
- if(userPressedTrue == answerIsTrue){
- messageResId = R.string.correct_toast;
- } else {
- messageResId = R.string.incorrect_toast;
- }
- Toast.makeText(this,messageResId,Toast.LENGTH_SHORT).show();
- }
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_quiz);
- mQuestionTextView = (TextView) findViewById(R.id.question_text_view);
- mTrueButton = (Button) findViewById(R.id.true_button);
- mTrueButton.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View v) {
- checkAnswer(true);
- }
- });
- mFalseButton = (Button) findViewById(R.id.false_button);
- mFalseButton.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View v) {
- checkAnswer(false);
- }
- });
- mNextButton = (Button) findViewById(R.id.next_button);
- mNextButton.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View v) {
- mCurrentIndex = (mCurrentIndex + 1) % mQuestionBank.length;
- updateQuestion();
- }
- });
- updateQuestion();
- }
- }
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