@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
super.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
if (mTimeLineText.getVisibility() == View.VISIBLE) {
int index =
firstVisibleItem + 1 == view.getAdapter().getCount()
? view.getAdapter().getCount() - 1
: firstVisibleItem + 1;
Image image = (Image) view.getAdapter().getItem(index);
if (image != null) {
mTimeLineText.setText(TimeUtil.formatPhotoDate(image.path));
}
}
}
public boolean shouldHandleAbsListViewLoadingMore(AbsListView absListView) {
if (mIsLoadingMore
|| mCurrentRefreshStatus == RefreshStatus.REFRESHING
|| mLoadMoreFooterView == null
|| mDelegate == null
|| absListView == null
|| absListView.getAdapter() == null
|| absListView.getAdapter().getCount() == 0) {
return false;
}
int lastChildBottom = 0;
if (absListView.getChildCount() > 0) {
// 如果AdapterView的子控件数量不为0，获取最后一个子控件的bottom
lastChildBottom = absListView.getChildAt(absListView.getChildCount() - 1).getBottom();
}
return absListView.getLastVisiblePosition() == absListView.getAdapter().getCount() - 1
&& lastChildBottom <= absListView.getMeasuredHeight();
}
@SuppressWarnings("unchecked")
public void onScroll(
AbsListView absListView, int firstVisible, int visibleCount, int totalCount) {
boolean loadMore = /* maybe add a padding */ firstVisible + visibleCount >= totalCount - 1;
// Log.d("onScroll:","loadMore f=" + firstVisible + ", vc=" + visibleCount + ", tc="
// +totalCount);
if (loadMore) {
// Debug.startMethodTracing("list" + firstVisible);
ListAdapter adapter = absListView.getAdapter();
if (adapter instanceof StatusAdapter) {
StatusAdapter sta = (StatusAdapter) adapter;
if (totalCount > 0) {
Object item = sta.getItem(totalCount - 1);
int i = 0;
if (item instanceof DirectMessage) {
DirectMessage message = (DirectMessage) item;
List<DirectMessage> messages = th.getDirectsFromDb(message.getId(), 7);
for (DirectMessage direct : messages) {
sta.insert(direct, totalCount + i);
directs.add(direct);
i++;
}
} else if (item instanceof Status) {
Status last = (Status) item;
if (statuses == null) statuses = new ArrayList<Status>();
List<Status> newStatuses = th.getStatuesFromDb(last.getId(), 7, list_id);
// TODO add checking for old
List<Long> readIds = obtainReadIds(newStatuses);
sta.readIds.addAll(readIds);
for (Status status : newStatuses) {
if (!matchesFilter(status)) {
sta.insert(status, totalCount + i);
statuses.add(status);
i++;
}
}
}
sta.notifyDataSetChanged();
}
}
// Debug.stopMethodTracing();
}
}
/**
* get AbsListView height according to every children
*
* @param view
* @return
*/
public static int getAbsListViewHeightBasedOnChildren(AbsListView view) {
ListAdapter adapter;
if (view == null || (adapter = view.getAdapter()) == null) {
return 0;
}
int height = 0;
for (int i = 0; i < adapter.getCount(); i++) {
View item = adapter.getView(i, null, view);
if (item instanceof ViewGroup) {
item.setLayoutParams(
new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
}
item.measure(0, 0);
height += item.getMeasuredHeight();
}
height += view.getPaddingTop() + view.getPaddingBottom();
return height;
}
protected Object getContextMenuSource(final View v, final ContextMenuInfo menuInfo) {
Object source = null;
if (menuInfo instanceof AdapterContextMenuInfo) {
final AbsListView list = (AbsListView) v;
final AdapterContextMenuInfo mi = (AdapterContextMenuInfo) menuInfo;
source = list.getAdapter().getItem(mi.position);
} else if (menuInfo instanceof ExpandableListContextMenuInfo) {
final ExpandableListView list = (ExpandableListView) v;
final ExpandableListAdapter adapter = list.getExpandableListAdapter();
final ExpandableListContextMenuInfo mi = (ExpandableListContextMenuInfo) menuInfo;
final long pp = mi.packedPosition;
final int group = ExpandableListView.getPackedPositionGroup(pp);
final int child = ExpandableListView.getPackedPositionChild(pp);
if (child >= 0) {
source = adapter.getChild(group, child);
} else {
source = adapter.getGroup(group);
}
}
return source;
}