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POsetOnCheckedChangeListener android
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copied!<p>I am developing a quiz application. It is such multiple choice questions. The system retrieves questions from re-built sqlite database. The database has 6 questions, but when the last question is answered, i get error. Also, sometimes, radiobutton (answer) has to be checked 2 times, cant recognize the first checked. </p> <p>It is the code </p> <pre><code>public class LatihanActivity extends Activity{ private RadioButton radioButton; private TextView quizQuestion; private TextView tvScore; private TextView answerDesc; AlmagAdapter adapter=null; AlmagHelper helper=null; private int rowIndex = 1; private static int score=0; private static String description; private int questNo=0; private boolean checked=false; private boolean flag=true; private RadioGroup radioGroup; String[] corrAns = new String[6]; final DatabaseHelper db = new DatabaseHelper(this); Cursor c1; Cursor c2; Cursor c3; int counter=1; String label; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); String options[] = new String[19]; helper=new AlmagHelper(this); final RadioGroup radiogroup = (RadioGroup) findViewById(R.id.rdbGp1); LinearLayout.LayoutParams layoutParams = new RadioGroup.LayoutParams( RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT); try { db.createDataBase(); } catch (IOException e) { e.printStackTrace(); } c3 = db.getCorrAns(); tvScore = (TextView) findViewById(R.id.tvScore); answerDesc = (TextView) findViewById(R.id.answerDesc); for (int i=0;i<4;i++) { corrAns[i]=c3.getString(0); c3.moveToNext(); } radioGroup = (RadioGroup) findViewById(R.id.rdbGp1); radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { // TODO Auto-generated method stub for(int i=0; i<group.getChildCount() ; i++) { RadioButton btn = (RadioButton) group.getChildAt(i); if (btn.isPressed() && btn.isChecked() && questNo < 6) { if (corrAns[questNo].equals(btn.getText()) && flag==true) { score++; flag=false; checked = true; } else if(checked==true) { score--; flag=true; checked = false; } Log.e("corrAns[questNo]",corrAns[questNo]); return; } } } }); quizQuestion = (TextView) findViewById(R.id.TextView01); displayQuestion(); Button btnNext = (Button) findViewById(R.id.btnNext); btnNext.setOnClickListener(btnNext_Listener); Button btnSave = (Button) findViewById(R.id.btnSave); btnSave.setOnClickListener(btnSave_Listener); } private View.OnClickListener btnNext_Listener= new View.OnClickListener() { @Override public void onClick(View v) { flag=true; checked = false; questNo++; if (questNo < 6) { c1.moveToNext(); displayQuestion(); } } }; /*Called when save button is clicked*/ private View.OnClickListener btnSave_Listener= new View.OnClickListener() { @Override public void onClick(View v) { tvScore.setText("Score: " + Integer.toString(score) + "/6"); Log.e("Score:", Integer.toString(score)); } }; private void displayQuestion() { //Fetching data quiz data and incrementing on each click c1=db.getQuiz_Content(rowIndex); c2 =db.getAns(rowIndex++); quizQuestion.setText(c1.getString(0)); radioGroup.removeAllViews(); for (int i=0;i<4;i++) { radioButton = new RadioButton(this); radioButton.setText(c2.getString(0)); radioButton.setId(i); c2.moveToNext(); radioGroup.addView(radioButton); } } } </code></pre> <p><strong>These are the errors</strong></p> <pre><code>ERROR/corrAns[questNo](299): am ERROR/Score:(299): 1 ERROR/corrAns[questNo](299): is ERROR/corrAns[questNo](299): is ERROR/Score:(299): 2 ERROR/corrAns[questNo](299): were ERROR/corrAns[questNo](299): were ERROR/Score:(299): 3 ERROR/corrAns[questNo](299): under ERROR/corrAns[questNo](299): under ERROR/Score:(299): 4 </code></pre> <p>Thanks </p>

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