CODEWITHSUNDEEP
androidarraysnavigation-drawer
input
input

Reputation: 7519

Add data to array dynamically

I'm using this helper class to create a navigation drawer in my app and I've got it working successfully to add data dynamically from json file:

    NavMenuItem createMenu = null;
                NavDrawerItem[] menu = new NavDrawerItem[]{};
                int i = 1;
                for (Post post : PostsActivity.this.posts){
                     createMenu = NavMenuItem.create(i, post.title+i, false, this);
                     menu = new NavDrawerItem[]{createMenu};
                     i++;
                }

NavDrawerActivityConfiguration navDrawerActivityConfiguration = new NavDrawerActivityConfiguration();
            navDrawerActivityConfiguration.setMainLayout(R.layout.activity_drawer);
            navDrawerActivityConfiguration.setDrawerLayoutId(R.id.drawer_layout);
            navDrawerActivityConfiguration.setLeftDrawerId(R.id.nav_drawer);
            navDrawerActivityConfiguration.setNavItems(menu);
            navDrawerActivityConfiguration.setDrawerShadow(R.drawable.drawer_shadow);
            navDrawerActivityConfiguration.setDrawerOpenDesc(R.string.drawer_open);
            navDrawerActivityConfiguration.setDrawerCloseDesc(R.string.drawer_close);
            navDrawerActivityConfiguration.setBaseAdapter(
                    new NavDrawerAdapter(this, R.layout.listview_drawer_item, menu ));

The problem is that only the last data in the posts array is displayed. How do I iterate the array so that it adds all the data to the NavDrawerItem array?

This is how data is added to the array in the original example given by the author:

NavDrawerItem[] menu = new NavDrawerItem[] {
                NavMenuSection.create( 100, "Demos"),
                NavMenuItem.create(101,"List/Detail (Fragment)", "navdrawer_friends", false, this),
                NavMenuItem.create(102, "Airport (AsyncTask)", "navdrawer_airport", true, this), 
                NavMenuSection.create(200, "General"),
                NavMenuItem.create(202, "Rate this app", "navdrawer_rating", false, this),
                NavMenuItem.create(203, "Eula", "navdrawer_eula", false, this), 
                NavMenuItem.create(204, "Quit", "navdrawer_quit", false, this)};

Upvotes: 0

Views: 181

Answers (1)

user1932079
user1932079

Reputation:

Try this:

ArrayList<NavDrawerItem> menu = new ArrayList<NavDrawerItem>();
int i = 1;
for (Post post : PostsActivity.this.posts){
     menu.add(NavMenuItem.create(i, post.title+i, false, this));
     i++;
}
NavDrawerItem[] navItems = new NavDrawerItem[menu.size()];
navItems = menu.toArray(navItems);

NavDrawerActivityConfiguration navDrawerActivityConfiguration = new NavDrawerActivityConfiguration();
navDrawerActivityConfiguration.setMainLayout(R.layout.activity_drawer);
navDrawerActivityConfiguration.setDrawerLayoutId(R.id.drawer_layout);
navDrawerActivityConfiguration.setLeftDrawerId(R.id.nav_drawer);
navDrawerActivityConfiguration.setNavItems(navItems);
navDrawerActivityConfiguration.setDrawerShadow(R.drawable.drawer_shadow);
navDrawerActivityConfiguration.setDrawerOpenDesc(R.string.drawer_open);
navDrawerActivityConfiguration.setDrawerCloseDesc(R.string.drawer_close);
navDrawerActivityConfiguration.setBaseAdapter(
        new NavDrawerAdapter(this, R.layout.listview_drawer_item, navItems ));

Upvotes: 1

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