private StickyHeaderBuilder(Context context)
{
this.context = context;
this.animator = null;
this.header = null;
this.minHeight = 0;
}
protected StickyHeaderView(Context context, View header, View view, int minHeightHeader, HeaderAnimator headerAnimator)
{
this.context = context;
this.header = header;
this.view = view;
this.minHeightHeader = minHeightHeader;
this.headerAnimator = headerAnimator;
MeasureHeaderHeight();
headerAnimator.SetupAnimator(header, minHeightHeader, heightHeader, maxHeaderTransaction);
}
protected StickyHeaderView(Context context, View header, View view, int minHeightHeader, HeaderAnimator headerAnimator, bool preventTouchBehindHeader)
{
this.context = context;
this.header = header;
this.view = view;
this.minHeightHeader = minHeightHeader;
this.headerAnimator = headerAnimator;
this.preventTouchBehindHeader = preventTouchBehindHeader;
MeasureHeaderHeight();
headerAnimator.SetupAnimator(header, minHeightHeader, heightHeader, maxHeaderTransaction);
if (preventTouchBehindHeader)
{
header.Touch += OnHeaderTouch;
header.LongClick += OnHeaderLongClick;
}
}
public StickyHeaderScrollView(Context context, View header, int minHeightHeader, HeaderAnimator headerAnimator, ScrollView scrollView)
: base(context, header, scrollView, minHeightHeader, headerAnimator)
{
// scroll events
scrollView.ViewTreeObserver.AddOnGlobalLayoutSingleFire(() => headerAnimator.OnScroll(-scrollView.ScrollY));
scrollView.ViewTreeObserver.ScrollChanged += (sender, e) => headerAnimator.OnScroll(-scrollView.ScrollY);
}
public StickyHeaderScrollView(Context context, View header, int minHeightHeader, HeaderAnimator headerAnimator, ScrollView scrollView, bool preventTouchBehindHeader)
: base(context, header, scrollView, minHeightHeader, headerAnimator, preventTouchBehindHeader)
{
// scroll events
scrollView.ViewTreeObserver.AddOnGlobalLayoutSingleFire(() => headerAnimator.OnScroll(-scrollView.ScrollY));
scrollView.ViewTreeObserver.ScrollChanged += (sender, e) => headerAnimator.OnScroll(-scrollView.ScrollY);
// some properties
scrollView.SetClipToPadding(false);
}
public virtual StickyHeaderBuilder SetAnimator(Func <AnimatorBuilder> headerAnimator)
{
this.animator = new SimpleHeaderStickyAnimator(headerAnimator);
return(this);
}
public virtual StickyHeaderBuilder SetAnimator(HeaderAnimator headerAnimator)
{
this.animator = headerAnimator;
return(this);
}
public StickyHeaderRecyclerView(Context context, View header, int minHeightHeader, HeaderAnimator headerAnimator, RecyclerView recyclerView)
: base(context, header, recyclerView, minHeightHeader, headerAnimator)
{
SetupItemDecorator();
// scroll events
recyclerView.SetOnScrollListener(new RecyclerScrollListener(this));
}
public StickyHeaderListView(Context context, View header, int minHeightHeader, HeaderAnimator headerAnimator, ListView listView, bool preventTouchBehindHeader)
: base(context, header, listView, minHeightHeader, headerAnimator, preventTouchBehindHeader)
{
// fake header
var lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.MatchParent, heightHeader);
fakeHeader = new Space(context)
{
LayoutParameters = lp
};
this.listView.AddHeaderView(fakeHeader);
// scroll events
this.listView.Scroll += (sender, e) =>
{
var scrolledY = -CalculateScrollYList();
headerAnimator.OnScroll(scrolledY);
};
}