Clear cookies on logout

app/src/main/java/app/insti/Utils.java

@@ -5,6 +5,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
+import android.support.annotation.RequiresApi;
 import android.support.design.widget.NavigationView;
 import android.support.transition.Fade;
 import android.support.transition.Slide;
@@ -13,6 +14,7 @@ import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.app.FragmentTransaction;
 import android.view.View;
+import android.webkit.CookieManager;
 import android.widget.ImageView;
 import android.widget.Toast;
 
@@ -247,4 +249,10 @@ public final class Utils {
             }
         }
     }
+
+    @RequiresApi(21)
+    public static void clearCookies(Context context) {
+        CookieManager.getInstance().removeAllCookies(null);
+        CookieManager.getInstance().flush();
+    }
 }

app/src/main/java/app/insti/fragment/SettingsFragment.java

@@ -174,6 +174,7 @@ public class SettingsFragment extends Fragment {
                         public void onResponse(Call<Void> call, Response<Void> response) {
                             if (response.isSuccessful()) {
                                 sessionManager.logout();
+                                Utils.clearCookies(getActivity());
                                 Intent intent = new Intent(getContext(), LoginActivity.class);
                                 startActivity(intent);
                                 getActivity().finish();