Question

I want to clear value stored in Shared preferences
I am using this code.

/*  SharedPreferences myPrefs = this.getSharedPreferences("myPrefs",
            Context.MODE_PRIVATE);
            SharedPreferences.Editor editor = myPrefs.edit();
            editor.clear();
            editor.commit();   */

but getting this error.

The method getSharedPreferences(String, int) is undefined for the type new View.OnClickListener(){}

private OnClickListener logoBarListener = new OnClickListener() {
/*
* (non-Javadoc)
*
* @see android.view.View.OnClickListener#onClick(android.view.View)
*/
public void onClick(View v) {

        if (v.getId() == R.id.img_bottom_home) {

            showProgressBar(MainScreen.class);

        } else if (v.getId() == R.id.img_bottom_basket) {

            showProgressBar(ShopBasketGet.class);

        } else if (v.getId() == R.id.img_bottom_notification) {

            showProgressBar(Notification.class);

        } else if (v.getId() == R.id.img_bottom_login) {
            SharedPreferences myPrefs = getSharedPreferences("myPrefs",
                    MODE_WORLD_READABLE);
            SharedPreferences.Editor editor = myPrefs.edit();
            editor.clear();
            editor.commit();   

            showProgressBar();
        }
    }
};

Answer 1

If you are creating object of your LinearLayout class in Activity class then you should pass
Context in the Constructor.

Below is snipper

Activity Class

public class SampleActivity extends Activity
{
    public void onCreate(Bundle bundle)
     {
         MyLinearLayout layout = new MyLinearLayout(this); 
         -----
         -----
     }  
}

MyLinearLayout Class

public class MyLinearLayout extends LinearLayout {
    private Context context;
    public MyLinearLayout(Context context) {
        super(context);
        this.context=context; 
        SharedPreferences preferences=context.getSharedPreference("pref",
                context.MODE_PRIVATE);

    }

}