我是安卓新手。。
在显示下一个问题时,我在 Nextbutton 中遇到问题...
在我第一次设置文本时,我得到了正确的问题并匹配了四个选项答案。我需要的是..
我有一个用于显示下一个问题和答案的下一个按钮。当单击下一个按钮时,我可以获得下一个问题的下四个选项。但是在我点击下一个四次后我无法得到下一个问题,它显示下一个问题。 ..但答案是正确的。
我做错了什么?我错过了什么?
任何帮助将不胜感激......提前非常感谢......
protected String doInBackground(String... args) { List<NameValuePair> params = new ArrayList<NameValuePair>(); System.out.println("cool"); params.add(new BasicNameValuePair("tid", tid)); json = jsonParser.makeHttpRequest(url_get_quesurl, "GET", params); System.out.println("ques value got"); Log.d("All Groups: ", json.toString()); System.out.println("question"); try { int success = json.getInt(TAG_SUCCESS); System.out.println("Success"); if (success == 1) { System.out.println("Success"); groups = json.getJSONArray(TAG_GROUP); System.out.println("Result Success+++"+groups); for (int i = 0; i < groups.length();i++) { JSONObject c = groups.getJSONObject(i); String question = c.getString(TAG_QUES); System.out.println("Checking ::"+question); ques1.add(question); String answer = c.getString(TAG_ANSW); System.out.println("Checking ::"+answer); answ1.add(answer); } } else { showAlert(); } } catch (JSONException e) { System.out.println("Error "+e.toString()); } return null; } protected void onPostExecute(String file_url) { pDialog.dismiss(); ques1=new ArrayList<String>(new ArrayList<String>(ques1)); // j=0; TextView txtque = (TextView) findViewById(R.id.que_txt); txtque.setText(ques1.get(j)); answ1=new ArrayList<String>(new ArrayList<String>(answ1)); btn_practice1.setText(answ1.get(0)); btn_practice2.setText(answ1.get(1)); btn_practice3.setText(answ1.get(2)); btn_practice4.setText(answ1.get(3)); btn_practicerg.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { RadioButton radioButton = (RadioButton) findViewById(checkedId); // Toast.makeText(Question.this, "" + radioButton.getText(), 2000).show(); TextView txtRadio = (TextView) findViewById(R.id.rdtxt); txtRadio.setText("" + radioButton.getText()); } }); Button nextBtn = (Button) findViewById(R.id.nxt_btn); nextBtn.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v){ j++; TextView txtque = (TextView) findViewById(R.id.que_txt); txtque.setText(ques1.get(j)); k++; btn_practice1.setText(answ1.get((k*4)+0)); btn_practice2.setText(answ1.get((k*4)+1)); btn_practice3.setText(answ1.get((k*4)+2)); btn_practice4.setText(answ1.get((k*4)+3)); } }); }