Android Open Source - GeoQuiz Quiz Activity

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Back to project page GeoQuiz.

License

The source code is released under:

MIT License

Java Source Code

package com.ambergleam.geoquiz;
/*from   w  w w  . j  a v a  2s .  com*/
import android.annotation.TargetApi;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

public class QuizActivity extends Activity {

  private static final String TAG = "com.ambergleam.geoquiz";
  private static final String KEY_INDEX = "index";
  private static final String KEY_CHEATER = "cheater";

  private Button mTrueButton, mFalseButton, mCheatButton;
  private ImageButton mPreviousButton, mNextButton;
  private TextView mQuestionTextView, mQuestionNumberTextView, mStatus,
      mBuildVersion;

  private Question[] mQuestionBank = new Question[] {
      new Question(R.string.question_africa, false),
      new Question(R.string.question_americas, true),
      new Question(R.string.question_asia, true),
      new Question(R.string.question_mideast, false),
      new Question(R.string.question_oceans, true),
      new Question(R.string.question_turkey, false) };

  private int mCurrentIndex = 0;
  private boolean mIsCheater;

  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.i(TAG, "onCreate(...) called");

    // Check for saved state
    if (savedInstanceState != null) {
      mCurrentIndex = savedInstanceState.getInt(KEY_INDEX, 0);
      mIsCheater = savedInstanceState.getBoolean(KEY_CHEATER, false);
    }

    setContentView(R.layout.layout_quiz);

    if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB) {
      ActionBar actionBar = getActionBar();
      actionBar.setSubtitle("Bodies of Water");
    }

    mQuestionTextView = (TextView) findViewById(R.id.questionTextView);
    mQuestionNumberTextView = (TextView) findViewById(R.id.questionNumberTextView);
    mStatus = (TextView) findViewById(R.id.textViewStatus);

    mBuildVersion = (TextView) findViewById(R.id.textViewBuildVersion);
    mBuildVersion.setText("API level " + Build.VERSION.SDK_INT);

    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);
      }
    });

    mPreviousButton = (ImageButton) findViewById(R.id.previous_button);
    mPreviousButton.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        mCurrentIndex = (mCurrentIndex - 1);
        if (mCurrentIndex < 0) {
          mCurrentIndex = mQuestionBank.length - 1;
        }
        mIsCheater = false;
        updateQuestion();
      }
    });

    mNextButton = (ImageButton) findViewById(R.id.next_button);
    mNextButton.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        mCurrentIndex = (mCurrentIndex + 1) % mQuestionBank.length;
        mIsCheater = false;
        updateQuestion();
      }
    });

    mCheatButton = (Button) findViewById(R.id.cheat_button);
    mCheatButton.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        // Start CheatActivity
        Intent i = new Intent(QuizActivity.this, CheatActivity.class);
        boolean answerIsTrue = mQuestionBank[mCurrentIndex]
            .isTrueQuestion();
        i.putExtra(CheatActivity.EXTRA_ANSWER_IS_TRUE, answerIsTrue);
        startActivityForResult(i, 0);
      }
    });

    updateQuestion();
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (data == null) {
      return;
    }
    mIsCheater = data.getBooleanExtra(CheatActivity.EXTRA_ANSWER_IS_SHOWN,
        false);
    mQuestionBank[mCurrentIndex].setCheatedOn(mIsCheater);

  }

  private void checkAnswer(boolean userPressedTrue) {
    boolean answerIsTrue = mQuestionBank[mCurrentIndex].isTrueQuestion();

    int messageResId = 0;

    if (mIsCheater) {
      if (userPressedTrue == answerIsTrue) {
        messageResId = R.string.toast_judgment;
      } else {
        messageResId = R.string.toast_major_judgment;
      }
      mStatus.setText("Cheated");
      mStatus.setTextColor(getResources().getColor(R.color.red));  
    } else {
      if (userPressedTrue == answerIsTrue) {
        mStatus.setText(R.string.toast_correct);
        mStatus.setTextColor(getResources().getColor(R.color.green));  
        messageResId = R.string.toast_correct;
      } else {
        mStatus.setText(R.string.toast_incorrect);
        mStatus.setTextColor(getResources().getColor(R.color.white));  
        messageResId = R.string.toast_incorrect;
      }
    }
    Toast.makeText(this, messageResId, Toast.LENGTH_SHORT).show();
  }

  private void updateQuestion() {
    int question = mQuestionBank[mCurrentIndex].getQuestion();
    mQuestionTextView.setText(question);
    String questionNumber = (mCurrentIndex + 1) + "/"
        + mQuestionBank.length;
    mQuestionNumberTextView.setText(questionNumber);
    mStatus.setText(R.string.blank);
    mStatus.setTextColor(getResources().getColor(R.color.black));
  }

  @Override
  protected void onSaveInstanceState(Bundle savedInstanceState) {
    super.onSaveInstanceState(savedInstanceState);
    Log.i(TAG, "onSaveInstanceState");
    savedInstanceState.putInt(KEY_INDEX, mCurrentIndex);
    savedInstanceState.putBoolean(KEY_CHEATER, mIsCheater);
  };

  @Override
  public void onStart() {
    super.onStart();
    Log.i(TAG, "onStart(...) called");
  }

  @Override
  public void onResume() {
    super.onResume();
    Log.i(TAG, "onResume(...) called");
  }

  @Override
  public void onPause() {
    super.onPause();
    Log.i(TAG, "onPause(...) called");
  }

  @Override
  public void onStop() {
    super.onStop();
    Log.i(TAG, "onStop(...) called");
  }

  @Override
  public void onDestroy() {
    super.onDestroy();
    Log.i(TAG, "onDestroy(...) called");
  }

}

Java Source Code List

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