OnItemClickListener that can have more or less items

Question

I have a server with a database. In my database I have 25 items at the moment but will be adding items and removing them.

I have the ListView in java working for the 25 items by simply writing a switch n case method.

But how could I write it so that as items in my data base are added or removed it adds the extra case items to my on ItemListener.

This is how I have it at the moment but I don't want to update my app every time I add a new item

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                    switch(i){
                        case 0:
                            break;
                    }
                }
            });

Edit

this is how i add the items to the list using firebase

mrootref = new Firebase("my firebaselink");
lv = (ListView)findViewById(R.id.lvnames);

mrootref.child("Mydatabase name").addChildEventListener(new ChildEventListener() {

    @Override
    public void onChildAdded(DataSnapshot snapshot, String s) {
        final ArrayAdapter<String> jlistAdapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1, webstreamsArray);
        lv.setAdapter(jlistAdapter);

        String streamname = snapshot.child("name").getValue(String.class);
        jlistAdapter.notifyDataSetChanged();
        webstreamsArray.add(streamname);
        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                switch(i){
                    case 0:
                        break;
                }
            }
        });
    }
}

Edit

below ive included a screenshot of my database structure. my app then calls the name part of the database and populates them to my listview. if an item is deleted it removes the item from my listview. i want to use the "url" item so that when the name item is clicked it opens the url item

Answer 1

here is what ive come up with from the help of you guys

 Urlname = snapshot.child("url").getValue(String.class);
            jlistAdapter.notifyDataSetChanged();
            webstreamsArray.add(streamname);
            urlList.add(Urlname);
            lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {


                @Override
                public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {


                   WebView webView = (WebView) findViewById(R.id.webView1);
                    webView.setVisibility(View.VISIBLE);
                    webView.getSettings().setJavaScriptEnabled(true);
                    webView.loadUrl(urlList.get(i));

                }
            });
        }