@Override
public void onItemClicked(ItemAdapter itemAdapter, RssItem rssItem) {
int positionToExpand = -1;
int positionToContract = -1;
if (itemAdapter.getExpandedItem() != null) {
positionToContract = currentItems.indexOf(itemAdapter.getExpandedItem());
View viewToContract = recyclerView.getLayoutManager().findViewByPosition(positionToContract);
if (viewToContract == null) {
positionToContract = -1;
}
}
if (itemAdapter.getExpandedItem() != rssItem) {
positionToExpand = currentItems.indexOf(rssItem);
itemAdapter.setExpandedItem(rssItem);
} else {
itemAdapter.setExpandedItem(null);
}
if (positionToContract > -1) {
itemAdapter.notifyItemChanged(positionToContract);
}
if (positionToExpand > -1) {
itemAdapter.notifyItemChanged(positionToExpand);
delegate.get().onItemExpanded(this, itemAdapter.getExpandedItem());
} else {
delegate.get().onItemContracted(this, rssItem);
return;
}
View viewToExpand = recyclerView.getLayoutManager().findViewByPosition(positionToExpand);
int lessToScroll = 0;
if (positionToContract > -1 && positionToContract < positionToExpand) {
lessToScroll = itemAdapter.getExpandedItemHeight() - itemAdapter.getCollapsedItemHeight();
}
recyclerView.smoothScrollBy(0, viewToExpand.getTop() - lessToScroll);
}
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
LinearLayoutManager lm = (LinearLayoutManager) recyclerView.getLayoutManager();
if (mCenterPivot == 0) {
mCenterPivot =
lm.getOrientation() == LinearLayoutManager.HORIZONTAL
? (recyclerView.getLeft() + recyclerView.getRight())
: (recyclerView.getTop() + recyclerView.getBottom());
}
if (!mAutoSet) {
if (newState == RecyclerView.SCROLL_STATE_IDLE) {
View view = findCenterView(lm);
int position = recyclerView.getChildPosition(view);
Log.i("CenterLockListener", "list-position" + position);
Toast.makeText(context, "list-position" + position, Toast.LENGTH_SHORT).show();
int viewCenter =
lm.getOrientation() == LinearLayoutManager.HORIZONTAL
? (view.getLeft() + view.getRight()) / 2
: (view.getTop() + view.getBottom()) / 2;
int scrollNeeded = viewCenter - mCenterPivot;
if (lm.getOrientation() == LinearLayoutManager.HORIZONTAL) {
recyclerView.smoothScrollBy(scrollNeeded, 0);
} else {
recyclerView.smoothScrollBy(0, (int) (scrollNeeded));
}
mAutoSet = true;
}
}
if (newState == RecyclerView.SCROLL_STATE_DRAGGING
|| newState == RecyclerView.SCROLL_STATE_SETTLING) {
mAutoSet = false;
}
}
private void resetOverScroll() {
int scrollBy = overScrollDistance;
if (scrollBy > 0) {
scrollBy = Math.max(scrollBy - overScrollTopDistanceLock, 0);
}
recyclerView.smoothScrollBy(0, scrollBy);
startOverScrollTime = 0;
}
private void appendComment(BotAdapter.Type type, String comment) {
botAdapter.addItem(type, comment);
botAdapter.setAnimationsLocked(false);
botAdapter.setDelayEnterAnimation(false);
if (rvComments.getChildCount() > 0) {
rvComments.smoothScrollBy(
0, rvComments.getChildAt(0).getHeight() * botAdapter.getItemCount());
}
}
// 添加MsgBean列表
public void addMgList(List<MsgBean> newMsgList) {
if (newMsgList == null) {
Timber.e("没有更多的聊天记录了");
return;
}
for (int i = 0; i < newMsgList.size(); i++) {
msgList.add(0, newMsgList.get(i));
}
Timber.e("增加了: \t" + newMsgList.size());
notifyDataSetChanged();
mRecyclerView.smoothScrollBy(0, msgList.size() * 200);
}
@Override
public void smoothScrollBy(int dx, int dy) {
super.smoothScrollBy(dx, dy);
getViewTreeObserver()
.addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
ViewHolder rightHolder =
findViewHolderForAdapterPosition(mCenterHolderPosition - 1);
if (rightHolder != null) {
if (Build.VERSION.SDK_INT < 16) {
getViewTreeObserver().removeGlobalOnLayoutListener(this);
} else {
getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
onRightItemSnap(mCenterHolderPosition - 1, rightHolder);
}
}
});
getViewTreeObserver()
.addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
ViewHolder leftHolder = findViewHolderForAdapterPosition(mCenterHolderPosition + 1);
if (leftHolder != null) {
if (Build.VERSION.SDK_INT < 16) {
getViewTreeObserver().removeGlobalOnLayoutListener(this);
} else {
getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
onLeftItemSnap(mCenterHolderPosition + 1, leftHolder);
}
}
});
}
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
if (v.isInTouchMode()) {
v.performClick();
}
int[] location = new int[2];
v.getLocationOnScreen(location);
/*
* if (location[0] - v.getWidth() < mRecyclerView.getLeft() ) {
* mRecyclerView.smoothScrollBy(- 400, 0); }
*/
if (location[0] + (v.getWidth() * 1.3) > mRecyclerView.getRight()) {
mRecyclerView.smoothScrollBy(300, 0);
}
if (v.getId() == R.id.more_game) {
panel.getMore_game_shadow().setImageResource(R.drawable.white_focus);
panel.getMore_game_content().setScaleX(1.1f);
panel.getMore_game_content().setScaleY(1.1f);
panel.getMore_game().setNextFocusUpId(R.id.tab_gamecenter);
panel.getMore_game().setNextFocusDownId(panel.getMore_game().getId());
if (adInfo != null) {
if (adInfo.getVideoUrl() != null && !adInfo.getVideoUrl().isEmpty()) {
panel.getMore_game_video().setVisibility(View.VISIBLE);
}
}
}
} else {
if (v.getId() == R.id.more_game) {
panel.getMore_game_shadow().setImageResource(android.R.color.transparent);
panel.getMore_game_content().setScaleX(1.0f);
panel.getMore_game_content().setScaleY(1.0f);
panel.getMore_game_video().setVisibility(View.INVISIBLE);
}
}
}
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
LinearLayoutManager linearLayoutManager =
(LinearLayoutManager) recyclerView.getLayoutManager();
if (mCenterPivot == 0) {
mCenterPivot = recyclerView.getLeft() + recyclerView.getRight();
}
if (!mAutoSet) {
synchronized (this) {
if (newState == RecyclerView.SCROLL_STATE_IDLE) {
View view = linearLayoutManager.findViewByPosition(mPosition);
mPosition = INITIAL_POSITION;
if (view == null) {
view = findCenterView(linearLayoutManager);
}
int viewCenter = (view.getLeft() + view.getRight()) / 2;
int viewWidth = view.getRight() - view.getLeft();
int scrollNeeded = viewCenter - mCenterPivot;
if (BuildConfig.DEBUG)
Log.d(
TAG,
"viewCentre = "
+ viewCenter
+ " viewWidth = "
+ viewWidth
+ " scrollNeeded = "
+ scrollNeeded
+ " recyclerViewWidth = "
+ recyclerView.getMeasuredWidth());
recyclerView.smoothScrollBy(scrollNeeded, 0);
mCenterHolderPosition = recyclerView.getChildLayoutPosition(view);
if (BuildConfig.DEBUG)
Log.d(
TAG,
"centerHolderPosition = " + mCenterHolderPosition + " mPosition = " + mPosition);
if (mScrollType == null) {
mScrollType = SwipeType.SWIPE;
}
onCenterItemSnap(
mCenterHolderPosition, recyclerView.getChildViewHolder(view), mScrollType);
mScrollType = null;
mAutoSet = true;
}
}
}
if (newState == RecyclerView.SCROLL_STATE_DRAGGING
|| newState == RecyclerView.SCROLL_STATE_SETTLING) {
mAutoSet = false;
}
}
// 增加消息
public void addMsg(MsgBean msgBean) {
msgList.add(msgBean);
notifyDataSetChanged();
mRecyclerView.smoothScrollBy(0, msgList.size() * 200);
}