How do I keep a checkmark in the Checkbox after exiting the app or returning to an activity?

How do I keep the checkmark in the checkbox after exiting the application or saving activity?

Here is my code:

        ch = (CheckBox) rootView.findViewById(R.id.checkBox62);
    ch.setOnClickListener(new View.OnClickListener() {
        private String PREFRENCES_NAME;

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
        if(ch.isChecked())
                {
            SharedPreferences pref = getActivity().getSharedPreferences(PREFRENCES_NAME,0);
            ch.setChecked(pref.getBoolean("cbx62_ischecked" ,true));
            pref.edit().putBoolean("check",true).commit();

            SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
            ch.setChecked(settings.getBoolean("check", true));
            }
        {
        }}
    });
    return rootView;
 }
}

      

        
        
        
      

    

Any help would be appreciated!

EDIT

This is my complete code:

public class TestingFragment extends Fragment {

public TestingFragment(){}
private CheckBox ch;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.fragment_testing, container, false);


    ch = (CheckBox) rootView.findViewById(R.id.checkBox62);
    ch.setOnClickListener(new View.OnClickListener() {
        private String PREFRENCES_NAME;

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
        if(ch.isChecked())
                {
            SharedPreferences pref = getActivity().getSharedPreferences(PREFRENCES_NAME,0);
            ch.setChecked(pref.getBoolean("cbx62_ischecked" ,true));
            pref.edit().putBoolean("check",true).commit();               

            }
        {
        }}
    });
    return rootView;
 }
}

      

        
        
        
      

    

I removed the code, I repeated ch.setChecked(pref.getBoolean("cbx62_ischecked" ,true));

I checked again and still does not work.