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Pass bundle in Android (with drawer layout) destination(HashSet) via 'NavController' and 'AppBarConf

Discussion in 'Android Development' started by sariDon2, Jul 9, 2020.

  1. sariDon2

    sariDon2 Lurker
    Thread Starter

    I am an amateur in Android Development. I have started working with a Drawer layout and want to populate the drawer navigational links dynamically (from a JSON variable say vtxJSON). All the links will direct to the same Fragment (say R.id.nav_fragment) with separate Bundles to be passed for each link to the same fragment.

    Till now I have created the Menu and directed the links successfully to the Fragment R.id.nav_fragment (with much appreciated help from this StackOverflow answer). Now I want to pass a set of values (preferably in Bundles) on each click and process them in the Fragment class and its View Model class.

    RE: I am using androidx libraries.

    My code is like this (MainActivity.java):

    Set<Integer> topLevelDestinations = new HashSet<>();
    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    final Menu menu = navigationView.getMenu();
    menu.add(R.id.act_drawer_group, R.id.nav_home, 0, "HOME");
    int menulen= vtxJSON.length();
    for(int i=0; i< menulen; i++)
    try {
    JSONObject ttxobj= (JSONObject) vtxJSON.get(i);
    Bundle args = new Bundle();
    args.putString("vtx_name", (String) ttxobj.get("name"));
    args.putString("vtx_mail", (String) ttxobj.get("mail"));
    menu.add(R.id.act_drawer_group, R.id.nav_fragment, i+1, (String) ttaxobj.get("name"));
    } catch (JSONException e) {


    NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
    AppBarConfiguration pxAppBar = new AppBarConfiguration.Builder(topLevelDestinations).setDrawerLayout(drawer).build();
    NavigationUI.setupActionBarWithNavController((AppCompatActivity) this, navController, pxAppBar);
    NavigationUI.setupWithNavController(navigationView, navController);

    Please at least let me know if I am on the right path. A hint or an answer would be wonderful. Thanks.

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