我有一個「真或假」類型的測驗在做。所以,兩個按鈕,一個是真實的,另一個是帶有問題的textview。我有一個在Assets文件夾中導入的sqlite數據庫。其中4列:_id,question,correctAnswer,wrongAnswer。每列INTEGER除TEXT之外的問題。因此,對於每個correctAnswer列,我設置0或1,具體取決於答案是true還是false。但是,在遊戲中,無論什麼問題,我在我的左側TRUE按鈕上出現錯誤,並在我右側的FALSE按鈕上糾正。我不知道我做錯了什麼。總之,這裏的代碼:從SQLite數據庫整數的布爾值
public class Kviz extends Activity implements OnClickListener{
Button true,false;
TextView question;
LinkedList<Long> mAnsweredQuestions = new LinkedList<Long>();
private String generateWhereClause(){
StringBuilder result = new StringBuilder();
for (Long l : mAnsweredQuestions){
result.append(" AND _ID <> " + l);
}
return result.toString();
}
private class Answer {
public Answer(int opt, boolean correct) {
option = opt;
isCorrect = correct;
}
int option;
boolean isCorrect;
}
Runnable mLaunchTask = new Runnable() {
public void run() {
nextQuestion();
}
};
Handler mHandler = new Handler();
final OnClickListener clickListener = new OnClickListener() {
public void onClick(View v) {
Answer ans = (Answer) v.getTag();
if (ans.isCorrect) {
Toast.makeText(getApplicationContext(), "Correct!", Toast.LENGTH_SHORT).show();
mHandler.postDelayed(mLaunchTask,1200);
}
else{
Toast.makeText(getApplicationContext(), "Incorrect!", Toast.LENGTH_SHORT).show();
mHandler.postDelayed(mLaunchTask,1200);
}
}
};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.kviz);
inicijalizujVarijable();
nextQuestion();
}
private void nextQuestion() {
TestAdapter mDbHelper = new TestAdapter(this);
DataBaseHelper myDbHelper = new DataBaseHelper(this);
if(!myDbHelper.checkDataBase()){
mDbHelper.createDatabase();
}
try{
mDbHelper.open();
Cursor c = mDbHelper.getTestData(generateWhereClause());
c.moveToFirst();
mAnsweredQuestions.add(c.getLong(0));
List<Answer> labels = new ArrayList<Answer>();
if (c.getInt(2)==1){
labels.add(new Answer(c.getInt(2), true));
labels.add(new Answer(c.getInt(3), false));
tacno.setTag(labels.get(0));
netacno.setTag(labels.get(1));
}else{
labels.add(new Answer(c.getInt(2), false));
labels.add(new Answer(c.getInt(3), true));
netacno.setTag(labels.get(0));
tacno.setTag(labels.get(1));
}
true.setOnClickListener(clickListener);
false.setOnClickListener(clickListener);
}
finally{
mDbHelper.close();
}
}
private void inicijalizujVarijable() {
true = (Button) findViewById(R.id.bTacno);
false = (Button) findViewById(R.id.bNetacno);
question = (TextView) findViewById(R.id.tvPitanje);
}
public void onClick(View v) {
}
}
爲什麼在數據庫中有「正確答案」列和「錯誤答案」列?如果它們全部是真/假,那麼只有2個可能的結果,他們得到它或者他們不這樣,所以你可以使用1列。 – ObieMD5
嗯,我想你是對的,但這仍然不能解決我的問題。 – marjanbaz
我需要你澄清發生了什麼,它沒有多大意義。我知道你沒有從按下答案按鈕中得到想要的結果,但是發生的情況我不明白。 – ObieMD5