private void ensureList() {
if (mList != null) {
return;
}
View root = getView();
if (root == null) {
throw new IllegalStateException("Content view not yet created");
}
if (root instanceof ListView) {
mList = (ListView) root;
} else {
mStandardEmptyView = (TextView) root.findViewById(INTERNAL_EMPTY_ID);
if (mStandardEmptyView == null) {
mEmptyView = root.findViewById(android.R.id.empty);
}
mProgressContainer = null; // root.findViewById(com.android.internal.R.id.progressContainer);
mListContainer = null; // root.findViewById(com.android.internal.R.id.listContainer);
View rawListView = root.findViewById(android.R.id.list);
if (!(rawListView instanceof ListView)) {
if (rawListView == null) {
throw new RuntimeException(
"Your content must have a ListView whose id attribute is " + "'android.R.id.list'");
}
throw new RuntimeException(
"Content has view with id attribute 'android.R.id.list' "
+ "that is not a ListView class");
}
mList = (ListView) rawListView;
if (mEmptyView != null) {
mList.setEmptyView(mEmptyView);
}
}
mListShown = true;
mList.setOnItemClickListener(mOnClickListener);
if (mAdapter != null) {
setListAdapter(mAdapter);
} else {
// We are starting without an adapter, so assume we won't
// have our data right away and start with the progress indicator.
if (mProgressContainer != null) {
setListShown(false, false);
}
}
mHandler.post(mRequestFocus);
}
public static <LI extends ListItem> void attach(
@Nonnull ListFragment listFragment, @Nonnull ListItemAdapter<? extends LI> adapter) {
listFragment.setListAdapter(adapter);
fillListView(listFragment.getListView(), adapter, listFragment.getActivity());
}