I have an application with TextView (in which questions from the data array appear alternately) and 3 True , False and Next buttons (they are responsible for answering the questions and the Next button for displaying the next question). I need the True and False buttons to be inactive after answering the question, and after I clicked the Next button they became active again to answer the next question.

 public class MainActivity extends AppCompatActivity { public static final String TAG = "MainActivity"; private static final String KEY_INDEX = "index"; private Button mTrueButton; private Button mFalseButton; private Button mNextButton; private TextView mQuestionTextView; private Question[] mQuestionBank = new Question[]{ new Question(R.string.question_australia, true), 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_asia, true), @Override public void onStart(){ super.onStart(); Log.d(TAG, "onStart() called"); } @Override public void onResume(){ super.onResume(); Log.d(TAG, "onResume() called"); } @Override public void onPause(){ super.onPause(); Log.d(TAG, "onPause() called"); } @Override public void onSaveInstanceState(Bundle savedInstanceState){ super.onSaveInstanceState(savedInstanceState); Log.i(TAG, "onSaveInstanceState"); savedInstanceState.putInt(KEY_INDEX, mCurrentIndex); } @Override public void onStop(){ super.onStop(); Log.d(TAG, "onStop() called"); } @Override public void onDestroy(){ super.onDestroy(); Log.d(TAG, "onDestroy() called"); } private int mCurrentIndex = 0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.d(TAG, "onCreate(Bundle) called"); setContentView(R.layout.activity_main); if (savedInstanceState != null){ mCurrentIndex = savedInstanceState.getInt(KEY_INDEX, 0); } mQuestionTextView = (TextView) findViewById(R.id.question_text_view); int question = mQuestionBank[mCurrentIndex].getTextResId(); mQuestionTextView.setText(question); 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(); } 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(); }

    1 answer 1

    After the "answer to the question" assign them .setEnabled(false) , and after clicking on NEXT - .setEnabled(true) :

     private void checkAnswer(boolean userPressedTrue) { mFalseButton.setEnabled(false); mTrueButton.setEnabled(false); ... }

    next :

     private void updateQuestion(){ mFalseButton.setEnabled(true); mTrueButton.setEnabled(true); ... }

    In general, look at the Internet is full of examples of how to write quizzes “correctly” (it looks like you have it).