@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (externalListener != null) {
externalListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (mOnScrollListener != null) {
mOnScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
if (mOnLoadMoreListener != null) {
if (visibleItemCount == totalItemCount) {
mProgressBarLoadMore.setVisibility(View.GONE);
// mLabLoadMore.setVisibility(View.GONE);
return;
}
boolean loadMore = firstVisibleItem + visibleItemCount >= totalItemCount;
if (!mIsLoadingMore && loadMore && mCurrentScrollState != SCROLL_STATE_IDLE) {
mProgressBarLoadMore.setVisibility(View.VISIBLE);
// mLabLoadMore.setVisibility(View.VISIBLE);
mIsLoadingMore = true;
// setSelection(getPositionForView(mFooterView));
// smoothScrollToPosition(mFooterView.getBottom());
onLoadMore();
}
}
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
// send to user's listener
if (mScrollListener != null) {
mScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (mScrollListener != null) {
mScrollListener.onScrollStateChanged(view, scrollState);
}
mScrollState = scrollState;
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
// 发送到用户的监听器
mTotalItemCount = totalItemCount;
if (mScrollListener != null) {
mScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (scrollListener != null) {
scrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) {
scrollChanged(firstVisibleItem);
}
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (totalItemCount > 0) {
refreshHeader();
}
if (mScrollListener != null) {
mScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
public void onScrollStateChanged(AbsListView view, int scrollState) {
mCurrentScrollState = scrollState;
if (mCurrentScrollState == SCROLL_STATE_IDLE) {
mBounceHack = false;
}
if (mOnScrollListener != null) {
mOnScrollListener.onScrollStateChanged(view, scrollState);
}
}
public final void onScrollStateChanged(final AbsListView view, final int state) {
/** Check that the scrolling has stopped, and that the last item is visible. */
if (state == OnScrollListener.SCROLL_STATE_IDLE
&& null != mOnLastItemVisibleListener
&& mLastItemVisible) {
mOnLastItemVisibleListener.onLastItemVisible();
}
if (null != mOnScrollListener) {
mOnScrollListener.onScrollStateChanged(view, state);
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (mScrollListener != null) {
mScrollListener.onScrollStateChanged(view, scrollState);
}
if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {
if (mEnableAutoLoad && getLastVisiblePosition() == getCount() - 1) {
startLoadMore();
}
}
}
public void onScrollStateChanged(AbsListView view, int scrollState) {
// bug fix: listview was not clickable after scroll
if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {
view.invalidateViews();
}
mCurrentScrollState = scrollState;
if (mOnScrollListener != null) {
mOnScrollListener.onScrollStateChanged(view, scrollState);
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (isDropDownStyle) {
currentScrollState = scrollState;
if (currentScrollState == SCROLL_STATE_IDLE) {
hasReachedTop = false;
}
}
if (onScrollListener != null) {
onScrollListener.onScrollStateChanged(view, scrollState);
}
}
@Override
public final void onScroll(
final AbsListView view,
final int firstVisibleItem,
final int visibleItemCount,
final int totalItemCount) {
if (DEBUG) {
Log.d(
LOG_TAG,
"First Visible: "
+ firstVisibleItem
+ ". Visible Count: "
+ visibleItemCount
+ ". Total Items: "
+ totalItemCount);
}
// If we have a OnItemVisibleListener, do check...
if (null != mOnLastItemVisibleListener) {
// Detect whether the last visible item has changed
final int lastVisibleItemIndex = firstVisibleItem + visibleItemCount;
/**
* Check that the last item has changed, we have any items, and that the last item is visible.
* lastVisibleItemIndex is a zero-based index, so we add one to it to check against
* totalItemCount.
*/
if (visibleItemCount > 0 && lastVisibleItemIndex + 1 == totalItemCount) {
if (lastVisibleItemIndex != mSavedLastVisibleIndex) {
mSavedLastVisibleIndex = lastVisibleItemIndex;
mOnLastItemVisibleListener.onLastItemVisible();
}
}
}
// If we're showing the indicator, check positions...
if (getShowIndicatorInternal()) {
updateIndicatorViewsVisibility();
}
// Finally call OnScrollListener if we have one
if (null != mOnScrollListener) {
mOnScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
// When the refresh view is completely visible, change the text to say
// "Release to refresh..." and flip the arrow drawable.
if (refreshOn) {
if (mCurrentScrollState == SCROLL_STATE_TOUCH_SCROLL && mRefreshState != REFRESHING) {
if (firstVisibleItem == 0) {
mRefreshViewImage.setVisibility(View.VISIBLE);
if ((mRefreshView.getBottom() >= mRefreshViewHeight + 20 || mRefreshView.getTop() >= 0)
&& mRefreshState != RELEASE_TO_REFRESH) {
mRefreshViewText.setText("Release to refresh...");
mRefreshViewImage.clearAnimation();
mRefreshViewImage.startAnimation(mFlipAnimation);
mRefreshState = RELEASE_TO_REFRESH;
} else if (mRefreshView.getBottom() < mRefreshViewHeight + 20
&& mRefreshState != PULL_TO_REFRESH) {
mRefreshViewText.setText("Pull to refresh...");
if (mRefreshState != TAP_TO_REFRESH) {
mRefreshViewImage.clearAnimation();
mRefreshViewImage.startAnimation(mReverseFlipAnimation);
}
mRefreshState = PULL_TO_REFRESH;
}
} else {
mRefreshViewImage.setVisibility(View.GONE);
resetHeader();
}
} else if (mCurrentScrollState == SCROLL_STATE_FLING
&& firstVisibleItem == 0
&& mRefreshState != REFRESHING) {
setSelection(1);
mBounceHack = true;
} else if (mBounceHack && mCurrentScrollState == SCROLL_STATE_FLING) {
setSelection(1);
}
}
if (mOnScrollListener != null) {
mOnScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
public final void onScroll(
final AbsListView view,
final int firstVisibleItem,
final int visibleItemCount,
final int totalItemCount) {
if (null != mOnLastItemVisibleListener) {
// detect if last item is visible
if (visibleItemCount > 0 && (firstVisibleItem + visibleItemCount == totalItemCount)) {
// only process first event
if (firstVisibleItem != mLastSavedFirstVisibleItem) {
mLastSavedFirstVisibleItem = firstVisibleItem;
mOnLastItemVisibleListener.onLastItemVisible();
}
}
}
if (null != mOnScrollListener) {
mOnScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
switch (scrollState) {
case OnScrollListener.SCROLL_STATE_IDLE:
imageLoader.resume();
break;
case OnScrollListener.SCROLL_STATE_TOUCH_SCROLL:
if (pauseOnScroll) {
imageLoader.pause();
}
break;
case OnScrollListener.SCROLL_STATE_FLING:
if (pauseOnFling) {
imageLoader.pause();
}
break;
}
if (externalListener != null) {
externalListener.onScrollStateChanged(view, scrollState);
}
}
public final void onScroll(
final AbsListView view,
final int firstVisibleItem,
final int visibleItemCount,
final int totalItemCount) {
if (DEBUG) {
Log.d(
LOG_TAG,
"First Visible: "
+ firstVisibleItem
+ ". Visible Count: "
+ visibleItemCount
+ ". Total Items:"
+ totalItemCount);
}
/**
* Set whether the Last Item is Visible. lastVisibleItemIndex is a zero-based index, so we minus
* one totalItemCount to check
*/
if (null != mOnLastItemVisibleListener) {
mLastItemVisible =
(totalItemCount > 0) && (firstVisibleItem + visibleItemCount >= totalItemCount - 1);
}
// If we're showing the indicator, check positions...
if (getShowIndicatorInternal()) {
updateIndicatorViewsVisibility();
}
// Finally call OnScrollListener if we have one
if (null != mOnScrollListener) {
mOnScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (null != positionChangedListener && null != scrollBarPanel) {
// Don't do anything if there is no itemviews
if (totalItemCount > 0) {
/*
* from android source code (ScrollBarDrawable.java)
*/
final int thickness = getVerticalScrollbarWidth();
int height =
Math.round(
(float) getMeasuredHeight()
* computeVerticalScrollExtent()
/ computeVerticalScrollRange());
int thumbOffset =
Math.round(
(float) (getMeasuredHeight() - height)
* computeVerticalScrollOffset()
/ (computeVerticalScrollRange() - computeVerticalScrollExtent()));
final int minLength = thickness * 2;
if (height < minLength) {
height = minLength;
}
thumbOffset += height / 2;
/*
* find out which itemviews the center of thumb is on
*/
final int count = getChildCount() - getFooterViewsCount();
for (int i = 0; i < count; ++i) {
final View childView = getChildAt(i);
if (childView != null) {
if (thumbOffset > childView.getTop() && thumbOffset < childView.getBottom()) {
if (lastPosition != firstVisibleItem + i) {
lastPosition = firstVisibleItem + i;
positionChangedListener.onPositionChanged(this, lastPosition, scrollBarPanel);
measureChild(scrollBarPanel, widthMeasureSpec, heightMeasureSpec);
}
break;
}
}
}
scrollBarPanelPosition = thumbOffset - scrollBarPanel.getMeasuredHeight() / 2;
final int x =
getMeasuredWidth() - scrollBarPanel.getMeasuredWidth() - getVerticalScrollbarWidth();
scrollBarPanel.layout(
x,
scrollBarPanelPosition,
x + scrollBarPanel.getMeasuredWidth(),
scrollBarPanelPosition + scrollBarPanel.getMeasuredHeight());
}
}
if (onScrollListener != null) {
onScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
@Override
public final void onScrollStateChanged(final AbsListView view, final int scrollState) {
if (null != mOnScrollListener) {
mOnScrollListener.onScrollStateChanged(view, scrollState);
}
}
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (isDropDownStyle) {
if (currentScrollState == SCROLL_STATE_TOUCH_SCROLL
&& currentHeaderStatus != HEADER_STATUS_LOADING) {
/**
* when state of ListView is SCROLL_STATE_TOUCH_SCROLL(ListView is scrolling and finger is
* on screen) and header status is not HEADER_STATUS_LOADING
*
* <ul>
* if header layout is visiable,
* <li>if height of header is higher than a fixed value, then set header status to
* HEADER_STATUS_RELEASE_TO_LOAD.
* <li>else set header status to HEADER_STATUS_DROP_DOWN_TO_LOAD.
* </ul>
*
* <ul>
* if header layout is not visiable,
* <li>set header status to HEADER_STATUS_CLICK_TO_LOAD.
* </ul>
*/
if (firstVisibleItem == 0) {
headerImage.setVisibility(View.VISIBLE);
int pointBottom = headerOriginalHeight + headerReleaseMinDistance;
if (headerLayout.getBottom() >= pointBottom) {
setHeaderStatusReleaseToLoad();
} else if (headerLayout.getBottom() < pointBottom) {
setHeaderStatusDropDownToLoad();
}
} else {
setHeaderStatusClickToLoad();
}
} else if (currentScrollState == SCROLL_STATE_FLING
&& firstVisibleItem == 0
&& currentHeaderStatus != HEADER_STATUS_LOADING) {
/**
* when state of ListView is SCROLL_STATE_FLING(ListView is scrolling but finger has leave
* screen) and first item(header layout) is visible and header status is not
* HEADER_STATUS_LOADING, then hide first item, set second item visible and set
* hasReachedTop true.
*/
setSecondPositionVisible();
hasReachedTop = true;
} else if (currentScrollState == SCROLL_STATE_FLING && hasReachedTop) {
/**
* when state of ListView is SCROLL_STATE_FLING(ListView is scrolling but finger has leave
* screen) and hasReachedTop is true(it's because flick back), then hide first item, set
* second item visible.
*/
setSecondPositionVisible();
}
}
// if isOnBottomStyle and isAutoLoadOnBottom and hasMore, then call
// onBottom function auto
if (isOnBottomStyle && isAutoLoadOnBottom && hasMore) {
if (firstVisibleItem > 0
&& totalItemCount > 0
&& (firstVisibleItem + visibleItemCount == totalItemCount)) {
onBottom();
}
}
if (onScrollListener != null) {
onScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}
