@Override
protected void setRefreshingInternal(boolean doScroll) {
// If we're empty, then the header/footer views won't show so we use the
// normal method
ListAdapter adapter = mRefreshableView.getAdapter();
if (null == adapter || adapter.isEmpty()) {
super.setRefreshingInternal(doScroll);
return;
}
super.setRefreshingInternal(false);
final LoadingLayout originalLoadingLayout, listViewLoadingLayout;
final int selection, scrollToY;
switch (getCurrentMode()) {
case MODE_PULL_UP_TO_REFRESH:
originalLoadingLayout = getFooterLayout();
listViewLoadingLayout = mFooterLoadingView;
selection = mRefreshableView.getCount() - 1;
scrollToY = getScrollY() - getHeaderHeight();
break;
case MODE_PULL_DOWN_TO_REFRESH:
default:
originalLoadingLayout = getHeaderLayout();
listViewLoadingLayout = mHeaderLoadingView;
selection = 0;
scrollToY = getScrollY() + getHeaderHeight();
break;
}
if (doScroll) {
// We scroll slightly so that the ListView's header/footer is at the
// same Y position as our normal header/footer
setHeaderScroll(scrollToY);
}
// Hide our original Loading View
originalLoadingLayout.setVisibility(View.INVISIBLE);
// Show the ListView Loading View and set it to refresh
listViewLoadingLayout.setVisibility(View.VISIBLE);
listViewLoadingLayout.refreshing();
if (doScroll) {
// Make sure the ListView is scrolled to show the loading
// header/footer
mRefreshableView.setSelection(selection);
// Smooth scroll as normal
smoothScrollTo(0);
}
}
@Override
protected void onReset() {
/** If the extras are not enabled, just call up to super and return. */
if (!mListViewExtrasEnabled) {
super.onReset();
return;
}
final LoadingLayout originalLoadingLayout, listViewLoadingLayout;
final int scrollToHeight, selection;
final boolean scrollLvToEdge;
switch (getCurrentMode()) {
case MANUAL_REFRESH_ONLY:
case PULL_FROM_END:
originalLoadingLayout = getFooterLayout();
listViewLoadingLayout = mFooterLoadingView;
selection = mRefreshableView.getCount() - 1;
scrollToHeight = getFooterSize();
scrollLvToEdge = Math.abs(mRefreshableView.getLastVisiblePosition() - selection) <= 1;
break;
case PULL_FROM_START:
default:
originalLoadingLayout = getHeaderLayout();
listViewLoadingLayout = mHeaderLoadingView;
scrollToHeight = -getHeaderSize();
selection = 0;
scrollLvToEdge = Math.abs(mRefreshableView.getFirstVisiblePosition() - selection) <= 1;
break;
}
// If the ListView header loading layout is showing, then we need to
// flip so that the original one is showing instead
if (listViewLoadingLayout.getVisibility() == View.VISIBLE) {
// Set our Original View to Visible
originalLoadingLayout.showInvisibleViews();
// Hide the ListView Header/Footer
listViewLoadingLayout.setVisibility(View.GONE);
/**
* Scroll so the View is at the same Y as the ListView header/footer, but only scroll if:
* we've pulled to refresh, it's positioned correctly
*/
if (scrollLvToEdge && getState() != State.MANUAL_REFRESHING) {
mRefreshableView.setSelection(selection);
setHeaderScroll(scrollToHeight);
}
}
// Finally, call up to super
super.onReset();
}
@Override
protected void handleStyledAttributes(TypedArray a) {
super.handleStyledAttributes(a);
mListViewExtrasEnabled = a.getBoolean(R.styleable.PullToRefresh_ptrListViewExtrasEnabled, true);
if (mListViewExtrasEnabled) {
final FrameLayout.LayoutParams lp =
new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.MATCH_PARENT,
FrameLayout.LayoutParams.WRAP_CONTENT,
Gravity.CENTER_HORIZONTAL);
// Create Loading Views ready for use later
FrameLayout frame = new FrameLayout(getContext());
mHeaderLoadingView = createLoadingLayout(getContext(), Mode.PULL_FROM_START, a);
mHeaderLoadingView.setVisibility(View.GONE);
frame.addView(mHeaderLoadingView, lp);
mRefreshableView.addHeaderView(frame, null, false);
mLvFooterLoadingFrame = new FrameLayout(getContext());
mFooterLoadingView = createLoadingLayout(getContext(), Mode.PULL_FROM_END, a);
mFooterLoadingView.setVisibility(View.GONE);
mLvFooterLoadingFrame.addView(mFooterLoadingView, lp);
/**
* If the value for Scrolling While Refreshing hasn't been explicitly set via XML, enable
* Scrolling While Refreshing.
*/
if (!a.hasValue(R.styleable.PullToRefresh_ptrScrollingWhileRefreshingEnabled)) {
setScrollingWhileRefreshingEnabled(true);
}
}
}
@Override
protected void resetHeader() {
// If we're empty, then the header/footer views won't show so we use the
// normal method
ListAdapter adapter = mRefreshableView.getAdapter();
if (null == adapter || adapter.isEmpty()) {
super.resetHeader();
return;
}
LoadingLayout originalLoadingLayout;
LoadingLayout listViewLoadingLayout;
int scrollToHeight = getHeaderHeight();
final boolean doScroll;
switch (getCurrentMode()) {
case MODE_PULL_UP_TO_REFRESH:
originalLoadingLayout = getFooterLayout();
listViewLoadingLayout = mFooterLoadingView;
doScroll = isReadyForPullUp();
break;
case MODE_PULL_DOWN_TO_REFRESH:
default:
originalLoadingLayout = getHeaderLayout();
listViewLoadingLayout = mHeaderLoadingView;
scrollToHeight *= -1;
doScroll = isReadyForPullDown();
break;
}
// Set our Original View to Visible
originalLoadingLayout.setVisibility(View.VISIBLE);
// Scroll so our View is at the same Y as the ListView header/footer,
// but only scroll if the ListView is at the top/bottom
if (doScroll) {
setHeaderScroll(scrollToHeight);
}
// Hide the ListView Header/Footer
listViewLoadingLayout.setVisibility(View.GONE);
super.resetHeader();
}
public void setRefreshingLabel(String refreshingLabel) {
super.setRefreshingLabel(refreshingLabel);
if (null != mHeaderLoadingView) {
mHeaderLoadingView.setRefreshingLabel(refreshingLabel);
}
if (null != mFooterLoadingView) {
mFooterLoadingView.setRefreshingLabel(refreshingLabel);
}
}
public void setPullLabel(String pullLabel) {
super.setPullLabel(pullLabel);
if (null != mHeaderLoadingView) {
mHeaderLoadingView.setPullLabel(pullLabel);
}
if (null != mFooterLoadingView) {
mFooterLoadingView.setPullLabel(pullLabel);
}
}
protected void handleStyledAttributes(TypedArray typedarray)
{
super.handleStyledAttributes(typedarray);
p = typedarray.getBoolean(14, true);
if (p)
{
android.widget.FrameLayout.LayoutParams layoutparams = new android.widget.FrameLayout.LayoutParams(-1, -2, 1);
FrameLayout framelayout = new FrameLayout(getContext());
m = createLoadingLayout(getContext(), PullToRefreshBase.Mode.PULL_FROM_START, typedarray);
m.setVisibility(8);
framelayout.addView(m, layoutparams);
((ListView)l).addHeaderView(framelayout, null, false);
o = new FrameLayout(getContext());
n = createLoadingLayout(getContext(), PullToRefreshBase.Mode.PULL_FROM_END, typedarray);
n.setVisibility(8);
o.addView(n, layoutparams);
if (!typedarray.hasValue(13))
{
setScrollingWhileRefreshingEnabled(true);
}
}
}
@Override
protected void onRefreshing(final boolean doScroll) {
/**
* If we're not showing the Refreshing view, or the list is empty, the the header/footer views
* won't show so we use the normal method.
*/
ListAdapter adapter = mRefreshableView.getAdapter();
if (!mListViewExtrasEnabled
|| !getShowViewWhileRefreshing()
|| null == adapter
|| adapter.isEmpty()) {
super.onRefreshing(doScroll);
return;
}
super.onRefreshing(false);
final LoadingLayout origLoadingView, listViewLoadingView, oppositeListViewLoadingView;
final int selection, scrollToY;
switch (getCurrentMode()) {
case MANUAL_REFRESH_ONLY:
case PULL_FROM_END:
origLoadingView = getFooterLayout();
listViewLoadingView = mFooterLoadingView;
oppositeListViewLoadingView = mHeaderLoadingView;
selection = mRefreshableView.getCount() - 1;
scrollToY = getScrollY() - getFooterSize();
break;
case PULL_FROM_START:
default:
origLoadingView = getHeaderLayout();
listViewLoadingView = mHeaderLoadingView;
oppositeListViewLoadingView = mFooterLoadingView;
selection = 0;
scrollToY = getScrollY() + getHeaderSize();
break;
}
// Hide our original Loading View
origLoadingView.reset();
origLoadingView.hideAllViews();
// Make sure the opposite end is hidden too
oppositeListViewLoadingView.setVisibility(View.GONE);
// Show the ListView Loading View and set it to refresh.
listViewLoadingView.setVisibility(View.VISIBLE);
listViewLoadingView.refreshing();
if (doScroll) {
// We need to disable the automatic visibility changes for now
disableLoadingLayoutVisibilityChanges();
// We scroll slightly so that the ListView's header/footer is at the
// same Y position as our normal header/footer
setHeaderScroll(scrollToY);
// Make sure the ListView is scrolled to show the loading
// header/footer
mRefreshableView.setSelection(selection);
// Smooth scroll as normal
smoothScrollTo(0);
}
}