Re: [android-developers] loading SharedPreferences in Fragment

Hmm thnx..I must be doing something else wrong then..cause when I use this code

private void loadPrefs() {

    ///SharedPreferences sp = this.getActivity().getSharedPreferences("CHECKBOX", 0);

    SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);

boolean cbValue = sp.getBoolean("CHECKBOX", false);

String name = sp.getString("NAME", "");

if(cbValue){

cb.setChecked(true);

}else{

cb.setChecked(false);

}

et.setText(name);

}

}

I get this error "The method getDefaultSharedPreferences(Context) in the type PreferenceManager is not applicable for the arguments 

 (TestFragment2)"

I thought had to replace this

SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);

With this

SharedPreferences sp = this.getActivity().getSharedPreferences("CHECKBOX", 0);

and I get no errors, however this Throws a NullPointer Exception at loadPrefs(); 

public final class TestFragment2 extends Fragment {

    TextView et;

    TextView text;

    SharedPreferences sp;

    View myView;

    CheckBox cb;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        loadPrefs();

} 

    @Override

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

        View myView = inflater.inflate(R.layout.fragment_2, container, false);

        text = (TextView)myView.findViewById(R.id.textView2);

        et = (TextView)myView.findViewById(R.id.textView3);

        return myView;

        

}

        

       private void loadPrefs() {

       SharedPreferences sp = this.getActivity().getSharedPreferences("CHECKBOX", 0);   

       boolean cbValue = sp.getBoolean("CHECKBOX", false);

       String name = sp.getString("NAME", "");

       if(cbValue){

       cb.setChecked(true);

       }else{

       cb.setChecked(false);

       }

       et.setText(name);

 }

}

        

       

On Thu, Feb 21, 2013 at 4:46 PM, Mark Murphy <mmurphy@commonsware.com> wrote:

Using the exact same code, if you wish.

On Thu, Feb 21, 2013 at 7:40 PM, Marcelo Corvezola <mcorvezola@gmail.com> wrote:
> Normally I use something like the code below to load sharedPreference into
> an activity..
>
> loadPrefs();
>
> }
>
>
> private void loadPrefs() {
>
> SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
>
> boolean cbValue = sp.getBoolean("CHECKBOX", false);
>
> String name = sp.getString("NAME", "YourName");
>
> if(cbValue){
>
> cb.setChecked(true);
>
> }else{
>
> cb.setChecked(false);
>
> }
>
> et.setText(name);
>
> }
>
>
>
> How are preferences loaded in a fragment Acivity? thnx
>
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