Android Save Checkbox State in Listview with Cursor Adapter

Android save Checkbox State in ListView with Cursor Adapter

I would recommend you use Android's built-in support for multiple-choice lists (CHOICE_MODE_MULTIPLE).

The List11.java SDK sample demonstrates this. You can also find a project from one of my tutorials that uses it here.

You can still use this technique with your own layout, so long as you include a CheckedTextView with android:id="@android:id/text1" as shown in the android.R.layout.simple_list_item_multiple_choice resource, a copy of which ships with your SDK.

Also, see this question and this question and this question and this question.

Android: CursorAdapter, ListView and CheckBox

There are a few concerns with the ListView when having checkable items in it. I would suggest the following link:

http://tokudu.com/2010/android-checkable-linear-layout/

I think it's close to what you want.

Maintaining checkbox states in listview with CursorAdapter

Reason : ListView re-uses the views.

Solution :

class VocabCursorAdapter extends CursorAdapter {
    List<Integer> selectedItemsPositions;//to store all selected items position

    public VocabCursorAdapter(Context context, Cursor c,int flags) {
        super(context, c,0);
        selectedItemsPositions = new ArrayList<>();
    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup viewGroup) {
        View view = LayoutInflater.from(context).inflate(R.layout.item_vocab, viewGroup, false);
        CheckBox box = (CheckBox) view.findViewById(R.id.editCheckbox);
        box.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                int position = (int) compoundButton.getTag();
                if (b) {
                    //check whether its already selected or not
                    if (!selectedItemsPositions.contains(position))
                        selectedItemsPositions.add(position);
                } else {
                    //remove position if unchecked checked item
                    selectedItemsPositions.remove((Object) position);
                }
            }
        });
        return view;
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {

        //your other stuff

        CheckBox box = (CheckBox) view.findViewById(R.id.editCheckbox);
        box.setTag(cursor.getPosition());

        if (selectedItemsPositions.contains(cursor.getPosition()))
            box.setChecked(true);
        else
            box.setChecked(false);
    }
}

CursorAdapter in Listview

problem is when you update your database just database going to update not cursor that adapt your cursor adapter ,so you have to use

 changeCursor(newcursor);

in your adapter after updating your database.
hope this help you.

Storing CheckBox state in a ListView

You question didn't say anything about storing the data after the application has closed. To store the checked CheckBoxes you could use a database or a simple file. Bellow is an example of storing the CheckBox state in a database:

public class SimplePlay extends ListActivity {

    private String[] soundnames;
    private Helper mHelper = new Helper(this, "position_status.db", null, 1);
    private SQLiteDatabase statusDb;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // this is to simulate data
        soundnames = new String[40];
        for (int i = 0; i < 40; i++) {
            soundnames[i] = "Sound " + i;
        }
        // Retrieve the list of position that are checked(if any) from the
        // database
        statusDb = mHelper.getWritableDatabase();
        Cursor statusCursor = statusDb.rawQuery("SELECT * FROM status", null);
        int[] savedStatus = null;
        if ((statusCursor != null) & (statusCursor.moveToFirst())) {
            savedStatus = new int[statusCursor.getCount()];
            int i = 0;
            do {
                savedStatus[i] = statusCursor.getInt(0);
                i++;
            } while (statusCursor.moveToNext());
        }
        // if the cursor is null or empty we just pass the null savedStatus to
        // the adapter constructor and let it handle(setting all the CheckBoxes
        // to unchecked)
        setListAdapter(new MobileArrayAdapter(this, soundnames, savedStatus));
    }

    public class MobileArrayAdapter extends ArrayAdapter<String> {
        private final Context context;
        private final String[] values;
        private ArrayList<Boolean> itemChecked = new ArrayList<Boolean>();

        public MobileArrayAdapter(Context context, String[] values,
                int[] oldStatus) {
            super(context, R.layout.adapters_simpleplay_row, values);
            this.context = context;
            this.values = values;

            // make every CheckBox unchecked and then loop through oldStatus(if
            // not null)
            for (int i = 0; i < this.getCount(); i++) {
                itemChecked.add(i, false);
            }
            if (oldStatus != null) {
                for (int j = 0; j < oldStatus.length; j++) {
                    itemChecked.set(oldStatus[j], true);
                }
            }
        }

        @Override
        public View getView(final int position, View convertView,
                ViewGroup parent) {
            View rowView = convertView;
            if (rowView == null) {
                LayoutInflater inflater = (LayoutInflater) context
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                rowView = inflater.inflate(R.layout.adapters_simpleplay_row,
                        parent, false);
            }
            CheckBox cBox = (CheckBox) rowView.findViewById(R.id.checkBox1);
            cBox.setTextColor(0xFFFFFFFF);
            cBox.setText(values[position]);
            cBox.setTag(new Integer(position));
            cBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView,
                        boolean isChecked) {
                    int realPosition = (Integer) buttonView.getTag();
                    if (isChecked) {
                        itemChecked.set(realPosition, true);
                        // update the database to store the new checked item:
                        ContentValues cv = new ContentValues();
                        cv.put("list_position", realPosition);
                        statusDb.insert("status", null, cv);
                    } else {
                        itemChecked.set(realPosition, false);
                        // delete this position from the database because it was
                        // unchecked
                        statusDb.delete("status", "list_position = "
                                + realPosition, null);
                    }
                }
            });
            cBox.setChecked(itemChecked.get(position));
            return rowView;
        }
    }

    //for working with the database
    private class Helper extends SQLiteOpenHelper {

        public Helper(Context context, String name, CursorFactory factory,
                int version) {
            super(context, name, factory, version);
        }

        @Override
        public void onCreate(SQLiteDatabase db) {
            // the list_position will hold the position from the list that are
            // currently checked
            String sql = "CREATE TABLE status (list_position INTEGER);";
            db.execSQL(sql);
        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            // Just for interface
        }

    }

}

After a quick test, the code works. It is just an example.

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