protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.MainLayout);
// inject views
Geneticist.Splice(this);
// set up chrome
drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, Resource.String.drawer_open, Resource.String.drawer_close);
drawerLayout.SetDrawerListener(drawerToggle);
SupportActionBar.SetDisplayHomeAsUpEnabled(true);
SupportActionBar.SetHomeButtonEnabled(true);
//var styledAttributes = Theme.ObtainStyledAttributes(new[] { Android.Resource.Attribute.ActionBarSize });
//var actionBarSize = (int)styledAttributes.GetDimension(0, 0);
//styledAttributes.Recycle();
// set up list view
stickyList.EmptyView = FindViewById(Resource.Id.empty);
stickyList.DrawingListUnderStickyHeader = true;
stickyList.AreHeadersSticky = true;
stickyList.StickyHeaderTopOffset = 0;// -20;
stickyList.AddHeaderView(LayoutInflater.Inflate(Resource.Layout.ListHeader, null));
stickyList.AddFooterView(LayoutInflater.Inflate(Resource.Layout.ListFooter, null));
stickyList.ItemClick += (sender, e) =>
Toast.MakeText(this, "Item " + e.Position + " clicked!", ToastLength.Short).Show();
stickyList.HeaderClick += (sender, e) =>
Toast.MakeText(this, "Header " + e.HeaderId + " currentlySticky ? " + e.CurrentlySticky, ToastLength.Short).Show();
stickyList.StickyHeaderChanged += (sender, e) => ViewHelper.SetAlpha(e.Header, 1);
stickyList.StickyHeaderOffsetChanged += (sender, e) =>
{
if (fadeHeader)
{
ViewHelper.SetAlpha(e.Header, 1 - (e.Offset / (float)e.Header.MeasuredHeight));
}
};
// set up data
adapter = new StickyAdapter(this);
stickyList.Adapter = adapter;
// actions
openExpandableListButton.Click += (sender, e) => StartActivity(new Intent(this, typeof(ExpandableListActivity)));
restoreButton.Click += (sender, e) => adapter.Restore();
updateButton.Click += (sender, e) => adapter.NotifyDataSetChanged();
clearButton.Click += (sender, e) => adapter.Clear();
stickyCheckBox.CheckedChange += (sender, e) => stickyList.AreHeadersSticky = e.IsChecked;
fadeCheckBox.CheckedChange += (sender, e) => fadeHeader = e.IsChecked;
drawBehindCheckBox.CheckedChange += (sender, e) => stickyList.DrawingListUnderStickyHeader = e.IsChecked;
fastScrollCheckBox.CheckedChange += (sender, e) =>
{
stickyList.SetFastScrollEnabled(e.IsChecked);
stickyList.FastScrollAlwaysVisible = e.IsChecked;
};
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.ExpandableLayout);
// inject views
Geneticist.Splice(this);
// handle header clicks
listView.HeaderClick += (sender, e) =>
{
if (listView.IsHeaderCollapsed(e.HeaderId))
{
listView.Expand(e.HeaderId);
}
else
{
listView.Collapse(e.HeaderId);
}
};
//custom expand/collapse animation
listView.SetAnimExecutor((target, animType) =>
{
if (ExpandableStickyListHeadersListView.AnimationExpand == animType &&
target.Visibility == ViewStates.Visible)
{
return;
}
if (ExpandableStickyListHeadersListView.AnimationCollapse == animType &&
target.Visibility != ViewStates.Visible)
{
return;
}
if (!originalHeightPool.ContainsKey(target.Handle))
{
originalHeightPool.Add(target.Handle, target.Height);
}
var viewHeight = originalHeightPool[target.Handle];
var animStartY = animType == ExpandableStickyListHeadersListView.AnimationExpand ? 0f : viewHeight;
var animEndY = animType == ExpandableStickyListHeadersListView.AnimationExpand ? viewHeight : 0f;
target.Visibility = ViewStates.Visible;
var lp = target.LayoutParameters;
var animator = ValueAnimator.OfFloat(animStartY, animEndY);
animator.SetDuration(200);
animator.AnimationEnd += delegate
{
if (animType == ExpandableStickyListHeadersListView.AnimationExpand)
{
target.Visibility = ViewStates.Visible;
}
else
{
target.Visibility = ViewStates.Gone;
}
target.LayoutParameters.Height = viewHeight;
};
animator.Update += delegate
{
lp.Height = (int)animator.AnimatedValue;
target.LayoutParameters = lp;
target.RequestLayout();
};
animator.Start();
});
// set up data
adapter = new StickyAdapter(this);
listView.Adapter = adapter;
}
