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我無法獲得四個多項選擇按鈕和問題textView以顯示文本。會發生什麼是一個意圖轉移與選定的類別「誰」或「什麼」。該類別與「誰」和「如果」語句進行比較。如果它是其中的一個，那麼它應該發佈問題並貫穿十個問題。我在if語句中使用了一個switch case來幫助區分哪個按鈕被點擊並繼續前進。當我運行模擬器時，它會顯示四個選擇按鈕但沒有任何內容顯示在文本或文本視圖中。如果語句沒有顯示多項選擇，則切換case語句
public class QuestionActivity extends AppCompatActivity {
List<QuestionsTable> whoQuesList;
List<QuestionsTable> whatQuesList;
int score=0;
int qid=0;
QuestionsTable currentWhatQ;
QuestionsTable currentWhoQ;
Button btnA, btnB, btnC, btnD;
Button butSkip;
TextView txtQuestion;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.question);
butSkip = (Button) findViewById(R.id.btnSkip);
MySQLiteHelper db = new MySQLiteHelper(this);
whoQuesList = db.getAllWhos();
whatQuesList = db.getAllWhos();
currentWhatQ = whatQuesList.get(qid);
currentWhoQ = whoQuesList.get(qid);
}
public void onClickQuestion(View txtViewQuestion) {
Bundle d = getIntent().getExtras();
int c = d.getInt("category");
String category = Integer.toString(c);
if ("Who".equals(category)) {
txtQuestion = (TextView) findViewById(R.id.txtViewQuestion);
btnA = (Button) findViewById(R.id.btnOptionA);
btnB = (Button) findViewById(R.id.btnOptionB);
btnC = (Button) findViewById(R.id.btnOptionC);
btnD = (Button) findViewById(R.id.btnOptionD);
setQuestionView();
switch (txtViewQuestion.getId()) {
case btnOptionA:
if (currentWhoQ.getAnswer().equals(btnA.getText())) {
score++;
}
if (qid < 10) {
currentWhoQ = whoQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
case btnOptionB:
if (currentWhoQ.getAnswer().equals(btnB.getText())) {
score++;
}
if (qid < 10) {
currentWhoQ = whoQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
case btnOptionC:
if (currentWhoQ.getAnswer().equals(btnC.getText())) {
score++;
}
if (qid < 10) {
currentWhoQ = whoQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
case R.id.btnOptionD:
if (currentWhoQ.getAnswer().equals(btnD.getText())) {
score++;
}
if (qid < 10) {
currentWhoQ = whoQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
}
}
if ("What".equals(category)) {
MySQLiteHelper db = new MySQLiteHelper(this);
whoQuesList = db.getAllWhos();
whatQuesList = db.getAllWhos();
currentWhatQ = whatQuesList.get(qid);
currentWhoQ = whoQuesList.get(qid);
txtQuestion = (TextView) findViewById(R.id.txtViewQuestion);
btnA = (Button) findViewById(R.id.btnOptionA);
btnB = (Button) findViewById(R.id.btnOptionB);
btnC = (Button) findViewById(R.id.btnOptionC);
btnD = (Button) findViewById(R.id.btnOptionD);
setWhatQuestionView();
switch (txtViewQuestion.getId()) {
case btnOptionA:
if (currentWhatQ.getAnswer().equals(btnA.getText())) {
score++;
}
if (qid < 10) {
currentWhatQ = whatQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
case btnOptionB:
if (currentWhatQ.getAnswer().equals(btnB.getText())) {
score++;
}
if (qid < 10) {
currentWhatQ = whatQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
case btnOptionC:
if (currentWhatQ.getAnswer().equals(btnC.getText())) {
score++;
}
if (qid < 10) {
currentWhatQ = whatQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
case R.id.btnOptionD:
if (currentWhatQ.getAnswer().equals(btnD.getText())) {
score++;
}
if (qid < 10) {
currentWhatQ = whatQuesList.get(qid);
setQuestionView();
} else {
Intent intent = new Intent(QuestionActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("score", score); //Your score
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
}
break;
}
}
}
public void setQuestionView() {
txtQuestion.setText(currentWhoQ.getQuestion());
btnA.setText(currentWhoQ.getMultipleChoiceA());
btnB.setText(currentWhoQ.getMultipleChoiceB());
btnC.setText(currentWhoQ.getMultipleChoiceC());
btnD.setText(currentWhoQ.getMultipleChoiceD());
qid++;
}
public void setWhatQuestionView() {
txtQuestion.setText(currentWhatQ.getQuestion());
btnA.setText(currentWhatQ.getMultipleChoiceA());
btnB.setText(currentWhatQ.getMultipleChoiceB());
btnC.setText(currentWhatQ.getMultipleChoiceC());
btnD.setText(currentWhatQ.getMultipleChoiceD());
qid++;
}