This is the way in order to connect with Database in Android

public class MainActivity extends ActionBarActivity { ArrayList<String>sourceContacts; ArrayAdapter<String>adapterContacts; ListView lvContacts; //--------------------------- String DATABASE_NAME="SqContactss.sqlite";// this is name database from assets folder String DB_PATH_SUFFIX="/databases/"; SQLiteDatabase database=null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); handleCoppyFileFromAssetsToSystemAndroid(); addControls(); showAllContactsOnListView(); } private void showAllContactsOnListView() { // step first open database database=openOrCreateDatabase(DATABASE_NAME, MODE_PRIVATE,null); // one way //Cursor cursor2=database.query("SqContactss", null, null, null, null, null,null); // two way Cursor cursor=database.rawQuery("SELECT * FROM SqContactss", null); sourceContacts.clear(); while(cursor.moveToNext()) { int code=cursor.getInt(0); String name1=cursor.getString(1); String numberPhone1=cursor.getString(2); sourceContacts.add("Code:"+code+"Name:"+name1+"\nPhone:"+numberPhone1); } cursor.close();// disconnet adapterContacts.notifyDataSetChanged(); } private void addControls() { sourceContacts=new ArrayList<String>(); adapterContacts=new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1,sourceContacts ); lvContacts=(ListView)findViewById(R.id.lvContacts); lvContacts.setAdapter(adapterContacts); } private void handleCoppyFileFromAssetsToSystemAndroid() { File dbFile=getDatabasePath(DATABASE_NAME); if(!dbFile.exists()) { try{ coppyDatabaseFromAsset(); Toast.makeText(this,"successful", Toast.LENGTH_LONG).show(); } catch(Exception ex) { Toast.makeText(this,ex.toString(), Toast.LENGTH_LONG).show(); } } else{ Toast.makeText(this,"Failed", Toast.LENGTH_LONG).show(); } } private void coppyDatabaseFromAsset() { try { //get name file your database InputStream myInput=getAssets().open(DATABASE_NAME); // my mission is get myInput take it in outFileName; String outFileName=getDatabasePath11(); //create out official folder + folder in assets File f=new File(getApplicationInfo().dataDir+DB_PATH_SUFFIX); // check it if(!f.exists()) { f.mkdir(); } // create folder to save database OutputStream myOutput=new FileOutputStream(outFileName); byte[] buffer=new byte[1024]; int lengh; while((lengh=myInput.read(buffer))>0)// read in file database { myOutput.write(buffer,0,lengh);// start write down up phone } myOutput.flush(); myOutput.close(); myInput.close(); } catch (Exception e) { Log.e("Error File", e.toString()); } } private String getDatabasePath11() { return getApplicationInfo().dataDir+DB_PATH_SUFFIX+DATABASE_NAME; } } protected void handleAdd() { ContentValues row=new ContentValues(); row.put("Id", 113); row.put("Name", "Trần Bá Thiên"); row.put("Phone","016834565454"); long r=database.insert("SqContactss",null, row); showAllContactsOnListView(); }