如何检查存储在sharedpreferences中的单选按钮值？

Question

I'm doing quiz based app.

So i have nearly 50 questions and 4 options(radio group) for each question. My problem is in shared preferences.

I have stored the users answer in shared perferences and when i goes to next question and comes to pervious question im getting the user answer in shared perferences, but if i goes again to perivious question im not getting that question answer.. For eg) If i answer 9 question and comes to 8 question im getting this answer and again im comes to 7 or 6 or 5 question here im not getting these answers.

What im doing wrong? How to do this?

Thanks in advance....

  btn_practicerg.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId){ RadioButton radioButton = (RadioButton)group. findViewById(checkedId); String temp = radioButton.getText().toString(); SharedPreferences settings =PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); SharedPreferences.Editor editor = settings.edit(); editor.putString("option", temp); // here temp is the value you want to save editor.commit(); } }); 

When click previous btn

  ImageView previousbtn1 = (ImageView) findViewById(R.id.prv_btn); previousbtn1.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v){ SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); String optionprev = settings.getString("option",""); } }); 

I try like this..

Answer 1

because you are saving all the answers in the same shared preferences variable which is option , you have to save it with the number of the question Like this:

int numberOfQuestion = //your question's number;
String optionNumber = "option"+numberOfQuestion;

the optionNumber variable has to be like this:

option1 for question 1

option2 for question 2

...

option50 for question 50