在此im从数据库中获取数据，即问题和答案，因此数据库中的答案数量等于动态创建的复选框的数量，我希望当用户选中复选框时，该复选框的值必须是我保存在sqlite数据库中
公共类Multiselect扩展了Fragment {
TextView ques;
DefaultHttpClient httpclient;
HttpPost httppost;
HttpResponse httpResponse;
HttpEntity httpEntity;
HttpResponse response;
HttpEntity entity;
InputStream is = null;
String result = null;
StringBuilder sb=null;
BufferedReader reader;
JSONArray jArray;
String line;
String question;
String answer;
int questionno;
int i;
View view;
Context context;
int id=1;
CheckBox checkboxbutton;
final CheckBox[] checkboxbuttons = new CheckBox[50];
LinearLayout l;
//DatabaseMultiselect db;
String text;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
}
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
view = inflater.inflate(R.layout.multiselect, container, false);
l=(LinearLayout)view.findViewById(R.id.l1);
/*String l1=l.toString();
String strtext=getArguments().getString("next");
Log.e("str",strtext);*/
StrictMode.enableDefaults();
ques=(TextView)view.findViewById(R.id.quesmultiselect);
//db=new DatabaseMultiselect(getActivity());
// db.open();
getMultiselect();
getAnswer(container);
Log.e("id",""+id);
Log.e("count",""+l.getChildCount());
return view;
}
void getMultiselect()
{
try
{
httpclient=new DefaultHttpClient();
// httppost= new HttpPost("http://10.0.2.2/multiselectandroid.php");
httpResponse = httpclient.execute(httppost);
httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
catch(Exception e)
{
Log.e("log_tag", "Error in http connection"+e.toString());
ques.setText("error!!");
}
//convert response to string
try
{
reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
sb = new StringBuilder();
sb.append(reader.readLine() + "\n");
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}
catch(Exception e)
{
Log.e("log_tag", "Error converting result "+e.toString());
}
//paring data
try
{
jArray = new JSONArray(result);
JSONObject json_data=null;
for(i=0;i<jArray.length();i++)
{
json_data = jArray.getJSONObject(i);
questionno=json_data.getInt("question_no");
question=json_data.getString("question");
Log.e("question",question);
//s=s+""+question;
}
ques.setText(question);
}
catch(JSONException excep)
{
excep.printStackTrace();
//Toast.makeText(getBaseContext(), "Error", Toast.LENGTH_LONG).show();
}
catch (ParseException excep)
{
excep.printStackTrace();
}
}
void getAnswer(ViewGroup container)
{
try
{
httpclient=new DefaultHttpClient();
httppost= new HttpPost("http://10.0.2.2/multiselectanswer.php?questionno="+questionno);
httpResponse = httpclient.execute(httppost);
httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
catch(Exception e)
{
Log.e("log_tag", "Error in http connection"+e.toString());
ques.setText("error!!");
}
//convert response to string
try
{
reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
sb = new StringBuilder();
sb.append(reader.readLine() + "\n");
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}
catch(Exception e)
{
Log.e("log_tag", "Error converting result "+e.toString());
}
//pairing data
try
{
jArray = new JSONArray(result);
JSONObject json_data=null;
for(i=0;i<jArray.length();i++)
{
json_data = jArray.getJSONObject(i);
answer=json_data.getString("answer");
checkboxbuttons[i] = new CheckBox(container.getContext());
checkboxbuttons[i].setId(id);
l.addView(checkboxbuttons[i]);
checkboxbuttons[i].setText(answer);
checkboxbuttons[i].setTextColor(Color.RED);
int rid=checkboxbuttons[i].getId();
Log.e("rid",""+rid);
id++;
}
/* if(id.getCheckedRadioButton==true)
{
String selected=chk;
Log.e("select",selected);
}*/
}
catch(JSONException excep)
{
excep.printStackTrace();
//Toast.makeText(getBaseContext(), "Error", Toast.LENGTH_LONG).show();
}
catch (ParseException excep)
{
excep.printStackTrace();
}
}
}
答案 0 :(得分：0)
public class Multiselect extends Fragment
{
//Declaring variables
TextView ques;
TextView condition;
TextView sectionidtext;
TextView instructions;
String instructionset;
int question_no;
String question1;
String surveyName;
String selectedQues;
String username;
int min_answers;
int max_answers;
int id=1;
DatabaseHandler db;
String rating=null;
View view;
final CheckBox[] answercheckbox = new CheckBox[50];
LinearLayout answersettinglayout;
String answertext;
int count=0;
String limit;
String sectionids;
String date=null;
String time=null;
String tablename="multiselect";
String input_answer=null;
String userid;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
//Getting Question number,user name,survey name,questionnaire name and user id value
Bundle mulitselectBundle=getArguments();
question_no=mulitselectBundle.getInt("questionnum");
surveyName=mulitselectBundle.getString("surveyname");
selectedQues=mulitselectBundle.getString("quesname");
username=mulitselectBundle.getString("username");
userid=mulitselectBundle.getString("userid");
Log.e("mulitselect"," "+question_no);
Log.e("mulitselect",surveyName);
Log.e("mulitselect",selectedQues);
Log.e("mulitselect",username);
Log.e("mulitselect",userid);
}
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
view = inflater.inflate(R.layout.multiselect, container, false);
//Getting id of Linear Layout for answers
answersettinglayout=(LinearLayout)view.findViewById(R.id.answersetting);
//Getting id of text view for question
ques=(TextView)view.findViewById(R.id.quesmultiselect);
//Getting id of textview for conditions
condition=(TextView)view.findViewById(R.id.conditionmulti);
//Getting id of textview for section id
sectionidtext=(TextView)view.findViewById(R.id.sectionidmultiselect);
//Getting id of text view for instructions display
instructions=(TextView)view.findViewById(R.id.instructionmultiselect);
//Create object of database
db=new DatabaseHandler(getActivity());
//Function call
retrieveQuestion();
getAnswer(container);
getcheckedCheckBoxes();
return view;
}
void retrieveQuestion()
{
//Open database
db.open();
Log.e("inside","retrieve question");
//Fetching value of question and section id
Cursor questioncursor=db.getQuestion(username,surveyName,selectedQues,question_no);
int length=questioncursor.getCount();
Log.e("length",""+length);
//Getting question and section id
if(questioncursor.moveToFirst())
{
//Getting column number
int indexquestion=questioncursor.getColumnIndex("question");
Log.e("index",""+indexquestion);
//Getting value of question and section id
question1= questioncursor.getString(indexquestion);
sectionids=questioncursor.getString(questioncursor.getColumnIndex("ques_id"));
//Setting question
ques.setText(question1);
Log.e("question",question1);
//Setting section id
sectionidtext.setText("Q."+sectionids);
}
//Closing cursor
questioncursor.close();
}
void getAnswer(ViewGroup container)
{
//Open database
db.open();
Log.e("inside","answer question");
//Fetching answers
Cursor answergettingcursor=db. getAnswer(username,surveyName,selectedQues,question_no);
//Declaring variable
int i=0;
//Getting answer value
while(answergettingcursor.moveToPosition(i))
{
//Getting column number
int indexanswer=answergettingcursor.getColumnIndex("answer");
//creating check boxes
answercheckbox[i] = new CheckBox(container.getContext());
//Setting id of check boxes
answercheckbox[i].setId(id);
//Adding check boxes in layout
answersettinglayout.addView(answercheckbox[i]);
//Setting answer value
answercheckbox[i].setText(answergettingcursor.getString(indexanswer));
//Setting text color
answercheckbox[i].setTextColor(Color.RED);
int rid=answercheckbox[i].getId();
Log.e("rid",""+rid);
//Incrementing value
id++;
i++;
}
//Closing cursor
answergettingcursor.close();
}
void getcheckedCheckBoxes()
{
Log.e("id",""+id);
Log.e("count",""+answersettinglayout.getChildCount());
//Fetching value of minimum and maximum characters
Cursor checkcondition=db.getmultiselecttabledata(username, surveyName, selectedQues, question_no);
//For Conditions
if(checkcondition.moveToFirst())
{
//Getting column number
int indexmin_answers=checkcondition.getColumnIndex("min_answers");
int indexmax_answers=checkcondition.getColumnIndex("max_answers");
Log.e("indexanswer",""+indexmin_answers);
Log.e("indexanswer1",""+indexmax_answers);
//Getting value of minimum and maximum characters and instructions
min_answers=checkcondition.getInt(indexmin_answers);
max_answers=checkcondition.getInt(indexmax_answers);
instructionset=checkcondition.getString(checkcondition.getColumnIndex("instructions"));
Log.e("texttableview",""+min_answers);
Log.e("texttableview",""+max_answers);
//Setting value of instructions
instructions.setText(instructionset);
//For answers
for(int k=0;k<answersettinglayout.getChildCount();k++)
{
//Whether check box checked or not
answercheckbox[k].setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
//If check box checked
if(((CheckBox) v).isChecked())
{
//Incrementing value of count
count++;
Log.e("count",""+count);
//Getting value of checked check box
answertext=((CheckBox) v).getText().toString();
Log.e("checkbox",""+answertext);
//Checking min and max character conditions
if(count>=min_answers)
{
if(count>max_answers)
{
//Setting text
condition.setText("Selected answers exceeds maximum length");
//Setting text color
condition.setTextColor(Color.RED);
//Setting value of limit
limit="max";
}
else
{
//Setting text
condition.setText("");
//Setting value of limit
limit="proper";
}
}
else
{
//Setting text
condition.setText("Please select more answers");
//Setting text color
condition.setTextColor(Color.RED);
//Setting value of limit
limit="min";
}
//Inserting answers
db.insertAnswer(userid,username,surveyName,selectedQues,question_no,question1,answertext,rating,input_answer,limit,date,time,sectionids,tablename);
}
//if unchecked check box
else
{
//Decreasing count value
count--;
Log.e("count",""+count);
//Getting value of checked check box
answertext=((CheckBox) v).getText().toString();
Log.e("checkboxdelete",""+answertext);
//Deleting unchecked check box value
db.deleteQuesMultiselect(userid,username, surveyName, selectedQues, question_no,answertext);
//Checking min and max character conditions
if(count>=min_answers)
{
if(count>max_answers)
{
//Setting text
condition.setText("Selected answers exceeds maximum length");
//Setting text color
condition.setTextColor(Color.RED);
}
else
{
//Setting text
condition.setText("");
}
}
else
{
//Setting text
condition.setText("Please select more answers");
//Setting text color
condition.setTextColor(Color.RED);
}
}
}
});
}
//Closing cursor
checkcondition.close();
}
}
}