Set Shared Preference Volley StringRequest

Question

I am using Volley to make an HTTP Post request.

This is working fine, however within the onResponse method I am trying to set a SharedPreference value, this value does not seem to be being set however.

The Volley code:

public void sendPostRequest() {

        RequestQueue queue = Volley.newRequestQueue(this);

        StringRequest stringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                progress.dismiss();
                try {
                    JSONObject obj = new JSONObject(response);
                    if (obj.has("success")){

                        SharedPreferences sharedPref = LoginActivity.this.getPreferences(Context.MODE_PRIVATE);
                        SharedPreferences.Editor editor = sharedPref.edit();
                        editor.putBoolean("loggedIn", true);
                        editor.commit();

                        Intent intent = new Intent(LoginActivity.this, SearchActivity.class);
                        startActivity(intent);
                    }else{
                        error.setText(obj.getString("error"));
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }


            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError volleyError) {
                System.out.println("volley Error .................");
            }
        }) {
            @Override
            protected Map<String, String> getParams() throws AuthFailureError {
                Map<String, String> params = new HashMap<String, String>();

                params.put("username", emailTxt.getText().toString());
                params.put("password", passwordTxt.getText().toString());
                return params;
            }
        };

        queue.add(stringRequest);


    }

The Intent gets fired so I know we are hitting the success if statement.

The below code is run in the launcher activity to by pass login if the user has already logged in

public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        getSupportActionBar().hide();

        SharedPreferences sharedPref = this.getPreferences(Context.MODE_PRIVATE);

        boolean loggedIn = sharedPref.getBoolean("loggedIn", false);

                if (loggedIn){
                    Intent intent = new Intent(MainActivity.this, SearchActivity.class);
                    startActivity(intent);
                }else{
                    Intent intent = new Intent(MainActivity.this, RegisterActivity.class);
                    startActivity(intent);
                }

    }

However loggedIn is always false.

Answer 1

As see here:

getPreferences

Retrieve a SharedPreferences object for accessing preferences that are private to this activity

Both LoginActivity and MainActivity Activity is different, so getting always false.

Use getSharedPreferences instead of getPreferences in both Activities to get it work.