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copied!<p>Finally I ended up creating my own custom adapter, this way I could at least understand more easily what was happening.</p> <p>I had to create actually several multiselect lists, some populated with data from the database, others from the shared preferences.</p> <p>For this one displaying data from the DB, I created the following adapter (I commented out the lines about the icons because I did not set them up yet):</p> <pre><code>public class CategoriesLVAdapter extends BaseAdapter { private Context mContext; private LayoutInflater mInflater; private List<Category> categoriesList; // Constructor public CategoriesLVAdapter(Context c, List<Category> categories_list){ mContext = c; mInflater = LayoutInflater.from(c); categoriesList = categories_list; } public List<Category> getCategoriesList(){ return categoriesList; } @Override public int getCount() { return categoriesList.size(); } @Override public Object getItem(int position) { return categoriesList.get(position); } @Override public long getItemId(int position) { return categoriesList.get(position).getID(); } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if (convertView == null) { convertView = mInflater.inflate(R.layout.categories_list_row, null); //convertView.setLayoutParams(new ListView.LayoutParams(200, 90)); holder = new ViewHolder(); holder.title = (TextView) convertView.findViewById(R.id.categories_list_row_tv); //holder.icon = (ImageView) convertView.findViewById(R.id.categories_list_row_iv); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } //holder.icon.setImageResource(categoriesList.get(position).getDrawableID()); //holder.icon.setAdjustViewBounds(true); //holder.icon.setScaleType(ImageView.ScaleType.CENTER_CROP); holder.title.setText(categoriesList.get(position).getName()); return convertView; } static class ViewHolder { TextView title; //ImageView icon; } </code></pre> <p>}</p> <p>In my activity, I use this adapter when the AlertDialog is called to populate the ListView, then I pre-select the categories using the last ones saved in the shared preferences:</p> <pre><code>private void categoriesFilter(){ AlertDialog.Builder alt_bld = new AlertDialog.Builder(this); alt_bld.setTitle(resources.getText(R.string.select_categories).toString()); LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE); View layout = inflater.inflate(R.layout.categories_list,(ViewGroup) findViewById(R.id.categories_layout_root)); categoriesLV = (ListView) layout.findViewById(R.id.categories_list); alt_bld.setPositiveButton("Ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { String selectedCategoriesString = getSelectedValues(categoriesLV); //Update the shared preferences prefs.edit().putString(RateDayApplication.PREF_KEY_CATEGORIES, selectedCategoriesString).commit(); updateFilterDisplay(resources.getText(R.string.cat_title).toString(), selectedCategoriesString, searchedCategoriesTV, "Category"); } }); alt_bld.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { dialog.cancel(); } }); String selectedCategoriesString = prefs.getString(RateDayApplication.PREF_KEY_CATEGORIES, new String()); categoriesLV.setAdapter(new CategoriesLVAdapter(this, categoriesList)); String[] selectedCategoriesArray = selectedCategoriesString.split(","); int categoriesLVLength = categoriesLV.getCount(); for(int i = 0; i < categoriesLVLength; i++){ int categoryID = ((Category) categoriesLV.getItemAtPosition(i)).getID(); if(Arrays.asList(selectedCategoriesArray).contains(String.valueOf(categoryID))){ categoriesLV.setItemChecked(i, true); } } alt_bld.setView(layout); AlertDialog alert = alt_bld.create(); alert.show(); } </code></pre> <p>Finally here is the function I call from my database handler to get the list of catagories:</p> <pre><code>// Getting All Categories By ID desc public List<Category> getCategoriesList() { String selectQuery = "SELECT " + CATEGORY_ID + ", " + CATEGORY_NAME + " FROM " + CATEGORY_TABLE + " ORDER BY " + CATEGORY_ID + " ASC"; SQLiteDatabase db = this.getReadableDatabase(); Cursor cursor = db.rawQuery(selectQuery, null); List<Category> categoriesList = new ArrayList<Category>();//String[] categoriesList = {}; // looping through all rows and adding to list if (cursor.moveToFirst()) { do { Category category = new Category(cursor.getInt(0), cursor.getString(1), false); categoriesList.add(category); } while (cursor.moveToNext()); } cursor.close(); db.close(); return categoriesList; } </code></pre> <p>I think my problem before was coming from the fact that the function "setItemChecked" is a little misleading because it does not mean necessarily that anything is checked. When you use the function "setItemChecked", the item in the list view becomes selected, with or without a checkbox (my rows only contain text views).</p> <p>The rows selected in my list appear in a different color, and that's enough in my opinion for a simple multi selection list.</p> <p>The layouts I used are quite simple, "categories_list" contains a ListView in a LinearLayout and "categories_list_row" contains a TextView in a LinearLayout.</p> <p>Hope it may guide someone!</p>

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