我有一个“真或假”类型的测验在做。所以,两个按钮,一个是真实的,另一个是带有问题的textview。我有一个在Assets文件夹中导入的sqlite数据库。其中4列:_id,question,correctAnswer,wrongAnswer。每列INTEGER除TEXT之外的问题。因此,对于每个correctAnswer列,我设置0或1,具体取决于答案是true还是false。但是,在游戏中,无论什么问题,我在我的左侧TRUE按钮上出现错误,并在我右侧的FALSE按钮上纠正。我不知道我做错了什么。总之,这里的代码:从SQLite数据库整数的布尔值
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) {
}
}
为什么在数据库中有“正确答案”列和“错误答案”列?如果它们全部是真/假,那么只有2个可能的结果,他们得到它或者他们不这样,所以你可以使用1列。 – ObieMD5
嗯,我想你是对的,但这仍然不能解决我的问题。 – marjanbaz
我需要你澄清发生了什么,它没有多大意义。我知道你没有从按下答案按钮中得到想要的结果,但是发生的情况我不明白。 – ObieMD5