private void attachAdapter() {
if (getHeight() == 0) {
// try again!
setAdapter(mAdapter);
return;
}
final int itemCount = mAdapter.getCount();
int itemGroup = mAdapter.getItemsCountPerGroup();
if (itemGroup < 3) {
itemGroup = 3;
}
final float height = getHeight();
final int itemHeight = (int) (height / itemGroup);
int additionHeight = (int) (height - itemHeight * itemGroup);
int itemPosition = 0;
final int totalItems = itemCount + 2;
for (int i = 0; i < totalItems; i++) {
if (i == 0 || i == totalItems - 1) {
TextView tv = (i == 0 ? mStartBlankView : mEndBlankView);
mItemLayoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
mItemLayoutParams.height = (--additionHeight >= 0) ? itemHeight + 1 : itemHeight;
tv.setLayoutParams(mItemLayoutParams);
mItemsContainer.addView(tv);
} else {
View convertView = null;
boolean isCached = true;
if (itemPosition < mCachedSubViewList.size()) {
convertView = mCachedSubViewList.get(itemPosition);
} else {
isCached = false;
}
View view = mAdapter.getView(itemPosition, convertView, this);
view.setId(mAdapter.getItemId(itemPosition));
mItemLayoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
mItemLayoutParams.height = (--additionHeight >= 0) ? itemHeight + 1 : itemHeight;
view.setLayoutParams(mItemLayoutParams);
mItemsContainer.addView(view);
if (!isCached) {
mCachedSubViewList.add(itemPosition, view);
} else {
if (view != convertView) {
mCachedSubViewList.remove(itemPosition);
mCachedSubViewList.add(itemPosition, view);
}
}
itemPosition++;
}
}
}
