android-checkbox

I'm developing a Android application using ListView . ListView have a one file in each and every ListItem . Here, I have set onItemClick in ListView . So, that if user clicks the ListItem email application gets open and attach the particular file in email. Its for the single File , this gets implemented and working fine. Now I want attach the multiple file in email. i.e. the implementing the CheckBox in each ListItem and checked items have to attached into the Mail. I know its possible because its very similar to the file manager application that checking the multiple file and deleting the all

I am working in an app in which I handle a ListView which is composite with ViewHolder . In this ViewHolder , I have a CheckBox . Here is my code: private class SettingsArrayAdapter extends ArrayAdapter<Object> { Context context; ArrayList<Object> values; RowSettingsViewHolder vh = null; BigRowSettingsViewHolder bvh = null; @Override public int getItemViewType(int position) { if (values.get(position) instanceof RowContent) { return SMALL_ROW_DESIGN; } else return BIG_ROW_DESIGN; // return super.getItemViewType(position); } @Override public int getViewTypeCount() { return 2; } public

I have followed the tutorial here to create a custom ListView that shows items with category headers. I have modified the list_item_entry.xml to put a CheckBox in the item: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center_vertical" android:paddingRight="?android:attr/scrollbarSize" > <CheckBox android:id="@+id/option_checkbox" android:layout_width="wrap_content" android:layout_height="wrap_content"

In my application I use this to count the checked checkbox in real time meaning when tick the box the count above will increase or decrease. but when scrolling down the listview the checked box will be uncheck. any suggestion or problem in my codes? MainActivity public class Main2Activity extends AppCompatActivity { ListView lstdept; CheckBox list_view_item_checkbox; SimpleAdapter ADAhere; Connection con; String un, pass, db, ip, z,country; int test = 0; ArrayList<String> selectedItems = new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate