@Override
public int getItemViewType(int position) {
final int contactTileAdapterCount = mContactTileAdapter.getCount();
final int contactEntryListAdapterCount = mContactEntryListAdapter.getCount();
// There should be four kinds of types that are usually used, and one more exceptional
// type (IGNORE_ITEM_VIEW_TYPE), which sometimes comes from mContactTileAdapter.
//
// The four ordinary view types have the index equal to or more than 0, and less than
// mContactTileAdapter.getViewTypeCount()+ mContactEntryListAdapter.getViewTypeCount() + 2.
// (See also this class's getViewTypeCount())
//
// We have those values for:
// - The view types mContactTileAdapter originally has
// - The view types mContactEntryListAdapter originally has
// - mAccountFilterHeaderContainer ("all" section's account header), and
// - mLoadingView
//
// Those types should not be mixed, so we have a different range for each kinds of types:
// - Types for mContactTileAdapter ("tile" and "frequent" sections)
// They should have the index, >=0 and <mContactTileAdapter.getViewTypeCount()
//
// - Types for mContactEntryListAdapter ("all" sections)
// They should have the index, >=mContactTileAdapter.getViewTypeCount() and
// <(mContactTileAdapter.getViewTypeCount() + mContactEntryListAdapter.getViewTypeCount())
//
// - Type for "all" section's account header
// It should have the exact index
// mContactTileAdapter.getViewTypeCount()+ mContactEntryListAdapter.getViewTypeCount()
//
// - Type for "loading" view used during "all" section is being loaded.
// It should have the exact index
// mContactTileAdapter.getViewTypeCount()+ mContactEntryListAdapter.getViewTypeCount() + 1
//
// As an exception, IGNORE_ITEM_VIEW_TYPE (-1) will be remained as is, which will be used
// by framework's Adapter implementation and thus should be left as is.
if (position < contactTileAdapterCount) { // For "tile" and "frequent" sections
return mContactTileAdapter.getItemViewType(position);
} else if (position == contactTileAdapterCount) { // For "all" section's account header
return mContactTileAdapter.getViewTypeCount() + mContactEntryListAdapter.getViewTypeCount();
} else { // For "all" section
if (mContactEntryListAdapter.isLoading()) { // "All" section is being loaded.
return mContactTileAdapter.getViewTypeCount()
+ mContactEntryListAdapter.getViewTypeCount()
+ 1;
} else {
// "-1" for mAccountFilterHeaderContainer
final int localPosition = position - contactTileAdapterCount - 1;
final int type = mContactEntryListAdapter.getItemViewType(localPosition);
// IGNORE_ITEM_VIEW_TYPE must be handled differently.
return (type < 0) ? type : type + mContactTileAdapter.getViewTypeCount();
}
}
}
@Override
public int getCount() {
final int contactTileAdapterCount = mContactTileAdapter.getCount();
final int contactEntryListAdapterCount = mContactEntryListAdapter.getCount();
if (mContactEntryListAdapter.isLoading()) {
// Hide "all" contacts during its being loaded. Instead show "loading" view.
//
// "+2" for mAccountFilterHeaderContainer and mLoadingView
return contactTileAdapterCount + 2;
} else {
// "+1" for mAccountFilterHeaderContainer
return contactTileAdapterCount + contactEntryListAdapterCount + 1;
}
}
@Override
public Object getItem(int position) {
final int contactTileAdapterCount = mContactTileAdapter.getCount();
final int contactEntryListAdapterCount = mContactEntryListAdapter.getCount();
if (position < contactTileAdapterCount) { // For "tile" and "frequent" sections
return mContactTileAdapter.getItem(position);
} else if (position == contactTileAdapterCount) { // For "all" section's account header
return mAccountFilterHeaderContainer;
} else { // For "all" section
if (mContactEntryListAdapter.isLoading()) { // "All" section is being loaded.
return mLoadingView;
} else {
// "-1" for mAccountFilterHeaderContainer
final int localPosition = position - contactTileAdapterCount - 1;
return mContactTileAdapter.getItem(localPosition);
}
}
}
@Override
public boolean isEnabled(int position) {
final int contactTileAdapterCount = mContactTileAdapter.getCount();
final int contactEntryListAdapterCount = mContactEntryListAdapter.getCount();
if (position < contactTileAdapterCount) { // For "tile" and "frequent" sections
return mContactTileAdapter.isEnabled(position);
} else if (position == contactTileAdapterCount) { // For "all" section's account header
// This will be handled by View's onClick event instead of ListView's onItemClick event.
return false;
} else { // For "all" section
if (mContactEntryListAdapter.isLoading()) { // "All" section is being loaded.
return false;
} else {
// "-1" for mAccountFilterHeaderContainer
final int localPosition = position - contactTileAdapterCount - 1;
return mContactEntryListAdapter.isEnabled(localPosition);
}
}
}
@Override
public boolean isEmpty() {
// Cannot use the super's method here because we add extra rows in getCount() to account
// for headers
return mContactTileAdapter.getCount() + mContactEntryListAdapter.getCount() == 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final int contactTileAdapterCount = mContactTileAdapter.getCount();
final int contactEntryListAdapterCount = mContactEntryListAdapter.getCount();
// Obtain a View relevant for that position, and adjust its horizontal padding. Each
// View has different implementation, so we use different way to control those padding.
if (position < contactTileAdapterCount) { // For "tile" and "frequent" sections
final View view = mContactTileAdapter.getView(position, convertView, parent);
final int frequentHeaderPosition = mContactTileAdapter.getFrequentHeaderPosition();
if (position < frequentHeaderPosition) { // "starred" contacts
// No padding adjustment.
} else if (position == frequentHeaderPosition) {
view.setPadding(
mItemPaddingLeft,
mFrequentHeaderPaddingTop,
mItemPaddingRight,
view.getPaddingBottom());
} else {
// Views for "frequent" contacts use FrameLayout's margins instead of padding.
final FrameLayout frameLayout = (FrameLayout) view;
final View child = frameLayout.getChildAt(0);
FrameLayout.LayoutParams params =
new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT);
params.setMargins(mItemPaddingLeft, 0, mItemPaddingRight, 0);
child.setLayoutParams(params);
}
return view;
} else if (position == contactTileAdapterCount) { // For "all" section's account header
mAccountFilterHeaderContainer.setPadding(
mItemPaddingLeft,
mAccountFilterHeaderContainer.getPaddingTop(),
mItemPaddingRight,
mAccountFilterHeaderContainer.getPaddingBottom());
// Show a single "No Contacts" label under the "all" section account header
// if no contacts are displayed.
mAccountFilterHeaderContainer
.findViewById(R.id.contact_list_all_empty)
.setVisibility(contactEntryListAdapterCount == 0 ? View.VISIBLE : View.GONE);
return mAccountFilterHeaderContainer;
} else { // For "all" section
if (mContactEntryListAdapter.isLoading()) { // "All" section is being loaded.
mLoadingView.setPadding(
mItemPaddingLeft,
mLoadingView.getPaddingTop(),
mItemPaddingRight,
mLoadingView.getPaddingBottom());
return mLoadingView;
} else {
// "-1" for mAccountFilterHeaderContainer
final int localPosition = position - contactTileAdapterCount - 1;
final ContactListItemView itemView =
(ContactListItemView)
mContactEntryListAdapter.getView(localPosition, convertView, null);
itemView.setPadding(
mItemPaddingLeft,
itemView.getPaddingTop(),
mItemPaddingRight,
itemView.getPaddingBottom());
itemView.setSelectionBoundsHorizontalMargin(mItemPaddingLeft, mItemPaddingRight);
return itemView;
}
}
}