View findOneVisibleChild(
int fromIndex, int toIndex, boolean completelyVisible, boolean acceptPartiallyVisible) {
OrientationHelper helper;
if (layoutManager.canScrollVertically()) {
helper = OrientationHelper.createVerticalHelper(layoutManager);
} else {
helper = OrientationHelper.createHorizontalHelper(layoutManager);
}
final int start = helper.getStartAfterPadding();
final int end = helper.getEndAfterPadding();
final int next = toIndex > fromIndex ? 1 : -1;
View partiallyVisible = null;
for (int i = fromIndex; i != toIndex; i += next) {
final View child = layoutManager.getChildAt(i);
final int childStart = helper.getDecoratedStart(child);
final int childEnd = helper.getDecoratedEnd(child);
if (childStart < end && childEnd > start) {
if (completelyVisible) {
if (childStart >= start && childEnd <= end) {
return child;
} else if (acceptPartiallyVisible && partiallyVisible == null) {
partiallyVisible = child;
}
} else {
return child;
}
}
}
return partiallyVisible;
}
private int findPartlyVisiblePosition() {
int positionView = 1;
RecyclerView.LayoutManager layoutManager = videoList.getLayoutManager();
int start = layoutManager.getPaddingStart();
int end = layoutManager.getHeight() + start;
int next = isScrolledUp ? 1 : -1;
int fromIndex = isScrolledUp ? 0 : layoutManager.getChildCount() - 1;
int toIndex = isScrolledUp ? layoutManager.getChildCount() : -1;
for (int i = fromIndex; i != toIndex; i += next) {
View child = layoutManager.getChildAt(i);
View childTex = child.findViewById(R.id.iv_feed_center_video);
int[] texLocation = new int[2];
childTex.getLocationInWindow(texLocation);
int childStart = texLocation[VIEW_TOP_LOCATION_INDEX] - actionbarSize;
int childEnd = childStart + childTex.getHeight();
if (childStart <= end && childEnd >= start) {
positionView = layoutManager.getPosition(child);
break;
}
}
return positionView;
}