i'm making a listview containing checkbox. i'm referring a code and try to fowllow, but can't understand one part.
refference addr : Android: CursorAdapter, ListView and CheckBox
in the below code, ther are two CheckBoxes. 1. final CheckBox cBox = (CheckBox) inView.findViewById(R.id.bcheck); 2. CheckBox cb = (CheckBox) v.findViewById(R.id.your_checkbox_id);
i understand first one, which is getting from inflater layout. but second one, i dont understand where the CheckBox id(R.id.your_checkbox_id) comes from.. could anybody help me to understand?
thanks!
public class MyDataAdapter extends SimpleCursorAdapter {
private Cursor c;
private Context context;
private ArrayList<String> list = new ArrayList<String>();
private ArrayList<Boolean> itemChecked = new ArrayList<Boolean>();
// itemChecked will store the position of the checked items.
public MyDataAdapter(Context context, int layout, Cursor c, String[] from,
int[] to) {
super(context, layout, c, from, to);
this.c = c;
this.context = context;
for (int i = 0; i < this.getCount(); i++) {
itemChecked.add(i, false); // initializes all items value with false
}
}
public View getView(final int pos, View inView, ViewGroup parent) {
if (inView == null) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inView = inflater.inflate(R.layout.your_layout_file, null);
}
final CheckBox cBox = (CheckBox) inView.findViewById(R.id.bcheck); // your
// CheckBox
cBox.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
CheckBox cb = (CheckBox) v.findViewById(R.id.your_checkbox_id); //what is this checkbox?
if(cb.isChecked()) {
itemChecked.set(pos, true);
// do some operations here
}
else if (!cb.isChecked()) {
itemChecked.set(pos, false);
// do some operations here
}
}
}
}
I think,it is just to know which checkbox is checked.It is used to save the correct status(checked or unchecked) of the checkbox you clicked.But i think,you can directly try as below.(I didn't try it but i should work,i think!)
Try using it like:
public View getView(final int pos, View inView, ViewGroup parent) {
if (inView == null) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inView = inflater.inflate(R.layout.your_layout_file, null);
}
final CheckBox cBox = (CheckBox) inView.findViewById(R.id.bcheck); // your
// CheckBox
cBox.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if(cBox.isChecked()) {
itemChecked.set(pos, true);
// do some operations here
}
else{
itemChecked.set(pos, false);
// do some operations here
}
}
}
}