Question

I am new to android and after going through many tutorials I still can’t get things.

I have created a database and is now reading this database.
This database and 3 columns All three string type.

Now I want to show this database using ListView.I have this ListView
created with id “listDatabaseItems” in R.layout.viewDatabase

Currently my code is:

Cursor c = sqliteDatabase.query(MY_DATABASE_TABLE, null, null, null, null, null, null);

int firstNameColumn = c.getColumnIndex("name_column");
int protectedColumn = c.getColumnIndex("protected_id_column");

ArrayList<String> results = new ArrayList<String>();
int i = 0;

c.moveToFirst();
do {
    i++;
    String firstName = c.getString(firstNameColumn);
    String protectedID = c.getString(protectedColumn);
    results.add(firstName + protectedID); // NEED TO add here 
} while (c.moveToNext()); 

sqliteDatabase.close();

Please tell me what changes I do and how can I show my database in ListView.

Best Regards.

Answer 1

Make a Adapter add your ListArray values to it, and then setAdapter to your listview simple,

After your code, add just two lines,

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, results);
mListView.setAdapter(adapter);

Also, your question sounds basic for android So just look at these links..

SimpleCursorAdapters and ListViews

Android SQLite Database and ContentProvider – Tutorial

Filling the Layout with Data