public void flush() {
for (int i = 0, n = linearLayout.getChildCount(); i < n; i++) {
View view = linearLayout.getChildAt(i);
if (view instanceof DropdownListItemView) {
DropdownListItemView itemView = (DropdownListItemView) view;
DropdownItemObject data = (DropdownItemObject) itemView.getTag();
if (data == null) return;
boolean checked = data == current;
String suffix = data.getSuffix();
itemView.bind(TextUtils.isEmpty(suffix) ? data.text : data.text + suffix, checked);
if (checked) button.setText(data.text);
}
}
}
public void bind(
List<? extends DropdownItemObject> list,
DropdownButton button,
final Container container,
int selectedId) {
current = null;
this.list = list;
this.button = button;
LinkedList<View> cachedDividers = new LinkedList<>();
LinkedList<DropdownListItemView> cachedViews = new LinkedList<>();
for (int i = 0, n = linearLayout.getChildCount(); i < n; i++) {
View view = linearLayout.getChildAt(i);
if (view instanceof DropdownListItemView) {
cachedViews.add((DropdownListItemView) view);
} else {
cachedDividers.add(view);
}
}
linearLayout.removeAllViews();
LayoutInflater inflater = LayoutInflater.from(getContext());
boolean isFirst = true;
for (DropdownItemObject item : list) {
if (isFirst) {
isFirst = false;
} else {
View divider = cachedDividers.poll();
if (divider == null)
divider = inflater.inflate(R.layout.dropdown_tab_list_divider, linearLayout, false);
linearLayout.addView(divider);
}
DropdownListItemView view = cachedViews.poll();
if (view == null)
view =
(DropdownListItemView)
inflater.inflate(R.layout.dropdown_tab_list_item, linearLayout, false);
view.setTag(item);
view.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
DropdownItemObject data = (DropdownItemObject) v.getTag();
if (data == null) return;
DropdownItemObject oldOne = current;
current = data;
flush();
container.hide();
if (oldOne != current) container.onSelectionChanged(DropdownListView.this);
}
});
linearLayout.addView(view);
if (item.id == selectedId && current == null) current = item;
}
button.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
if (getVisibility() == View.VISIBLE) {
container.hide();
} else {
container.show(DropdownListView.this);
}
}
});
if (current == null && list.size() > 0) {
current = list.get(0);
}
flush();
}
