//region register scrollables
/**
* Register a RecyclerView to the current MaterialViewPagerAnimator
* Listen to RecyclerView.OnScrollListener so give to $[onScrollListener] your RecyclerView.OnScrollListener if you already use one
* For loadmore or anything else
*
* @param recyclerView the scrollable
* @param onScrollListener use it if you want to get a callback of the RecyclerView
*/
public void RegisterRecyclerView(RecyclerView recyclerView, RecyclerView.OnScrollListener onScrollListener)
{
if (recyclerView != null)
{
ScrollViewList.Add(recyclerView); //add to the scrollable list
YOffsets.AddOrUpdate(recyclerView, recyclerView.ScrollY); //save the initial recyclerview's yOffset (0) into hashmap
//only necessary for recyclerview
//listen to scroll
recyclerView.AddOnScrollListener(new RecyclerViewScrollListener(this, onScrollListener));
recyclerView.Post(() => SetScrollOffset(recyclerView, LastYOffset));
}
}
/**
* Implement this method to customize the AbsListView
*/
protected void initRecyclerView(View view)
{
mRecycler = (RecyclerView)view.FindViewById(AndroidResource.Id.List);
tipView = (TextView)view.FindViewById(Resource.Id.tvTip);
setItemAnimator(null);
if (mRecycler != null)
{
mRecycler.HasFixedSize = true;
mRecycler.SetClipToPadding(mClipToPadding);
mInternalOnScrollListener = new CustomOnScrollListener(this);
mRecycler.AddOnScrollListener(mInternalOnScrollListener);
if (mPadding != -1.0f)
{
mRecycler.SetPadding(mPadding, mPadding, mPadding, mPadding);
}
else
{
mRecycler.SetPadding(mPaddingLeft, mPaddingTop, mPaddingRight, mPaddingBottom);
}
if (mScrollbarStyle != -1)
{
mRecycler.ScrollBarStyle = (ScrollbarStyles)mScrollbarStyle;
}
switch (mScrollbar)
{
case 0:
VerticalScrollBarEnabled = false;
break;
case 1:
HorizontalScrollBarEnabled = false;
break;
case 2:
VerticalScrollBarEnabled = false;
HorizontalScrollBarEnabled = false;
break;
}
}
}
public override void AddOnScrollListener(RecyclerView.OnScrollListener listener)
{
if (listener is HorizontalRecyclerViewListener)
{
if (mIsHorizontalScrollListenerRemoved)
{
mIsHorizontalScrollListenerRemoved = false;
base.AddOnScrollListener(listener);
}
else
{
// Do not let add the listener
Log.Warn(LogTag,
"mIsHorizontalScrollListenerRemoved has been tried to add itself " +
"before remove the old one");
}
}
else
{
if (listener is VerticalRecyclerViewListener)
{
if (mIsVerticalScrollListenerRemoved)
{
mIsVerticalScrollListenerRemoved = false;
base.AddOnScrollListener(listener);
}
else
{
// Do not let add the listener
Log.Warn(LogTag,
"mIsVerticalScrollListenerRemoved has been tried to add itself " +
"before remove the old one");
}
}
else
{
base.AddOnScrollListener(listener);
}
}
}
public override void RemoveOnScrollListener(RecyclerView.OnScrollListener listener)
{
if (listener is HorizontalRecyclerViewListener)
{
if (mIsHorizontalScrollListenerRemoved)
{
// Do not let remove the listener
Log.Error(LogTag,
"HorizontalRecyclerViewListener has been tried to remove " + "itself before add new one");
}
else
{
mIsHorizontalScrollListenerRemoved = true;
base.RemoveOnScrollListener(listener);
}
}
else
{
if (listener is VerticalRecyclerViewListener)
{
if (mIsVerticalScrollListenerRemoved)
{
// Do not let remove the listener
Log.Error(LogTag,
"mIsVerticalScrollListenerRemoved has been tried to remove " + "itself before add new one");
}
else
{
mIsVerticalScrollListenerRemoved = true;
base.RemoveOnScrollListener(listener);
}
}
else
{
base.RemoveOnScrollListener(listener);
}
}
}
public void AttachToRecyclerView(RecyclerView recyclerView, IScrollDirectorListener scrollDirectionListener = null, RecyclerView.OnScrollListener onScrollListener = null)
{
var scrollDetector = new RecyclerViewScrollDetectorImpl(this)
{
ScrollDirectionListener = scrollDirectionListener,
OnScrollListener = onScrollListener,
ScrollThreshold = scrollThreshold
};
recyclerView.AddOnScrollListener(scrollDetector);
}
public RecyclerViewScrollListener(MaterialViewPagerAnimator materialViewPagerAnimator, RecyclerView.OnScrollListener onScrollListener)
{
_animator = materialViewPagerAnimator;
_onScrollListener = onScrollListener;
}
/**
* Register a RecyclerView to the current MaterialViewPagerAnimator
* Listen to RecyclerView.OnScrollListener so give to $[onScrollListener] your RecyclerView.OnScrollListener if you already use one
* For loadmore or anything else
*
* @param activity current context
* @param recyclerView the scrollable
* @param onScrollListener use it if you want to get a callback of the RecyclerView
*/
public static void RegisterRecyclerView(Activity activity, RecyclerView recyclerView, RecyclerView.OnScrollListener onScrollListener)
{
if (activity != null && _hashMap.ContainsKey(activity))
{
MaterialViewPagerAnimator animator;
if (_hashMap.TryGetValue(activity, out animator) && animator != null)
{
animator.RegisterRecyclerView(recyclerView, onScrollListener);
}
}
}
public RecyclerViewScrollListener(MaterialViewPagerAnimator materialViewPagerAnimator, RecyclerView.OnScrollListener onScrollListener)
{
_animator = materialViewPagerAnimator;
_onScrollListener = onScrollListener;
}
public void AddOnScrollListener(RecyclerView.OnScrollListener listener)
{
mListeners.Add(listener);
}