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POPre-fill the CheckedTextViews in a ListView
 

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  1. POPre-fill the CheckedTextViews in a ListView
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    <p>Here is my first question on StackOverFlow, I usually always find an answer by myself but I am really stuck on a weird problem that I will explain here:</p> <p>I implemented a ListView in a fragment activity, this listview contains a list of categories related to the current record that I get from the SQLLite database.</p> <p>All is working fine, I created a SimpleCursorAdapter to retrieve the data from the DB and I display the categories correctly in the ListView. The problem is related to the pre-fill of the checkboxes (it is a multiselection list), depending on how I try to pre-check the checkboxes, I get 2 cases:</p> <p>First, the checkboxes are well pre-checked, but I cannot toggle the checkboxes anymore by clicking them. Second the click toggle well the checkboxes, but they are not pre-checked anymore...</p> <p>Here is the part of the code where I have the problem:</p> <pre><code>@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { //super.onCreate(savedInstanceState); View v = inflater.inflate(R.layout.rate_fragment, container,false); dbCategories = ""; displayCategories = resources.getText(R.string.no_categories).toString(); /** INITIALIZATION */ mViewSwitcher = (ViewSwitcher)v.findViewById(R.id.profileSwitcher); /** Edition view */ rateGroup = (RadioGroup)v.findViewById(R.id.rate_group); rateOne = (RadioButton)v.findViewById(R.id.one_button); rateOne.setTag(1); rateTwo = (RadioButton)v.findViewById(R.id.two_button); rateTwo.setTag(2); rateThree = (RadioButton)v.findViewById(R.id.three_button); rateThree.setTag(3); rateFour = (RadioButton)v.findViewById(R.id.four_button); rateFour.setTag(4); rateFive = (RadioButton)v.findViewById(R.id.five_button); rateFive.setTag(5); descET = (EditText)v.findViewById(R.id.editdescription); descTextSize = descET.getTextSize(); descET.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable s) { } }); categoriesTV_edit = (TextView)v.findViewById(R.id.edit_categories); categoriesBT = (Button) v.findViewById(R.id.select_categories); categoriesBT.setOnClickListener(new OnClickListener() { public void onClick(View v) { View categoriesListTitle = getActivity().getLayoutInflater().inflate(R.layout.category_list_title, null); AlertDialog.Builder alt_bld = new AlertDialog.Builder(v.getContext()).setCustomTitle(categoriesListTitle); categories = db.getAllCategoriesByRate(currentRate); categoriesList = new ListView(getActivity()); categoriesList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); categoriesList.setClickable(true); String[] fromColumns = new String[] { DatabaseHandler.CATEGORY_NAME }; int[] toViews = new int[]{ R.id.cat_checked }; //mAdapter = new SimpleCursorAdapter(getActivity(), android.R.layout.simple_list_item_multiple_choice, categories, fromColumns, toViews, 0); mAdapter = new SimpleCursorAdapter(getActivity(), R.layout.category_item, categories, fromColumns, toViews, 0); mAdapter.setViewBinder(new ViewBinder() { public boolean setViewValue(View view, Cursor cursor, int columnIndex) { if (columnIndex == 1) { CheckedTextView categRow = (CheckedTextView) view; String catName = cursor.getString(1); mAdapter.setViewText((TextView) view, catName); int catChecked = cursor.getInt(2); //boolean checkedCat = catChecked==1; //categoriesList.setItemChecked(cursor.getPosition(),checkedCat); categRow.setChecked(catChecked==1); int catID = cursor.getInt(0); categRow.setTag(catID); return true; } else { return false; } } }); categoriesList.setAdapter(mAdapter); alt_bld.setView(categoriesList); </code></pre> <p>To have one case or another, all depends on these 2 lines:</p> <pre><code>//boolean checkedCat = catChecked==1; //categoriesList.setItemChecked(cursor.getPosition(),checkedCat); </code></pre> <p>If they are commented, the checkboxes are not pre-checked, but the toggle on the clicks is working. But if I comment these lines out, the toggle is not working anymore but the categories are prechecked.</p> <p>What I also don't understand is that this line is not working:</p> <pre><code> categRow.setChecked(catChecked==1); </code></pre> <p>But this one is working well (I succeed to retrieve the tag):</p> <pre><code> categRow.setTag(catID); </code></pre> <p>So I hope someone will succeed to explain to me what I do wrong, I guess there is something I misunderstood here...</p> <p><strong>NOTE</strong>: I get 3 columns from the cursor "categories", first one is the ID of the category, second one is the name, and third one is the status: checked or not (1 or 0).</p> <p>Thanks in advance for your time.</p>
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    1. USYoann Hercouet
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