/**
* Control whether the list is being displayed. You can make it not displayed if you are waiting
* for the initial data to show in it. During this time an indeterminant progress indicator will
* be shown instead.
*
* @param shown If true, the list view is shown; if false, the progress indicator. The initial
* value is true.
* @param animate If true, an animation will be used to transition to the new state.
*/
private void setListShown(boolean shown, boolean animate) {
ensureList();
if (mProgressContainer == null) {
throw new IllegalStateException("Can't be used with a custom content view");
}
if (mListShown == shown) {
return;
}
mListShown = shown;
if (shown) {
if (animate) {
mProgressContainer.startAnimation(
AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_out));
mListContainer.startAnimation(
AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_in));
}
mProgressContainer.setVisibility(View.GONE);
mListContainer.setVisibility(View.VISIBLE);
} else {
if (animate) {
mProgressContainer.startAnimation(
AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_in));
mListContainer.startAnimation(
AnimationUtils.loadAnimation(getActivity(), android.R.anim.fade_out));
}
mProgressContainer.setVisibility(View.VISIBLE);
mListContainer.setVisibility(View.GONE);
}
}
/**
* The default content for a ListFragment has a TextView that can be shown when the list is empty.
* If you would like to have it shown, call this method to supply the text it should use.
*/
public void setEmptyText(CharSequence text) {
ensureList();
if (mStandardEmptyView == null) {
throw new IllegalStateException("Can't be used with a custom content view");
}
mStandardEmptyView.setText(text);
if (!mSetEmptyText) {
mList.setEmptyView(mStandardEmptyView);
mSetEmptyText = true;
}
}
/** Get the activity's list view widget. */
public ListView getListView() {
ensureList();
return mList;
}
/** Get the cursor row ID of the currently selected list item. */
public long getSelectedItemId() {
ensureList();
return mList.getSelectedItemId();
}
/** Get the position of the currently selected list item. */
public int getSelectedItemPosition() {
ensureList();
return mList.getSelectedItemPosition();
}
/**
* Set the currently selected list item to the specified position with the adapter's data
*
* @param position
*/
public void setSelection(int position) {
ensureList();
mList.setSelection(position);
}
/** Attach to list view once Fragment is ready to run. */
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ensureList();
}