/**
* Tells us about the "Target" which is the view we want to anchor to.
* We figure out where it is on screen and (optionally) how big it is.
* We also figure out whether to place our content and dismiss button above or below it.
*
* @param target
*/
public void SetTarget(Target.Target target)
{
_target = target;
// update dismiss button state
UpdateDismissButton();
if (_target != null)
{
/**
* If we're on lollipop then make sure we don't draw over the nav bar
*/
if (!_renderOverNav && Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop)
{
_bottomMargin = GetSoftButtonsBarSizePort((Activity)Context);
var contentLp = (LayoutParams)LayoutParameters;
if (contentLp != null && contentLp.BottomMargin != _bottomMargin)
{
contentLp.BottomMargin = _bottomMargin;
}
}
// apply the target position
var targetPoint = _target.Point;
var targetBounds = _target.Bounds;
Position = targetPoint;
// now figure out whether to put content above or below it
var height = MeasuredHeight;
var midPoint = height / 2;
var yPos = targetPoint.Y;
var radius = Math.Max(targetBounds.Height(), targetBounds.Width()) / 2;
if (_shape != null)
{
_shape.UpdateTarget(_target);
radius = _shape.Height / 2;
}
if (yPos > midPoint)
{
// target is in lower half of screen, we'll sit above it
_contentTopMargin = 0;
_contentBottomMargin = (height - yPos) + radius + _shapePadding;
_gravity = GravityFlags.Bottom;
}
else
{
// target is in upper half of screen, we'll sit below it
_contentTopMargin = yPos + radius + _shapePadding;
_contentBottomMargin = 0;
_gravity = GravityFlags.Top;
}
}
ApplyLayoutParams();
}
public void OnGlobalLayout()
{
try
{
SetTarget(_target);
}
catch (ObjectDisposedException e)
{
// target object is disposed, ditch the target
_target = null;
}
}
/**
* Tells us about the "Target" which is the view we want to anchor to.
* We figure out where it is on screen and (optionally) how big it is.
* We also figure out whether to place our content and dismiss button above or below it.
*
* @param target
*/
public void SetTarget(Target.Target target)
{
_target = target;
// update dismiss button state
UpdateDismissButton();
if (_target != null)
{
var lp = (LayoutParams)LayoutParameters;
/**
* If we're on lollipop then make sure we don't draw over the nav bar
*/
if (!_renderOverNav && Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop)
{
// _bottomMargin = GetSoftButtonsBarSize((Activity)Context);
// _bottomMargin = GetStatusBarSize((Activity)Context);
var activity = (Activity)Context;
var buttonSize = GetSoftButtonsBarSize(activity);
var statusSize = GetStatusBarSize(activity);
var orientation = activity.Resources.Configuration.Orientation;
if (Build.VERSION.SdkInt >= BuildVersionCodes.P)
{
var windowInsets = activity.Window.DecorView.RootWindowInsets;
statusSize = windowInsets.StableInsetTop;
buttonSize = orientation == Orientation.Landscape ? windowInsets.StableInsetRight : windowInsets.StableInsetBottom;
}
if (lp != null)
{
lp.TopMargin = statusSize;
if (orientation == Orientation.Landscape)
{
lp.RightMargin = buttonSize;
lp.BottomMargin = 0;
}
else
{
lp.BottomMargin = buttonSize;
lp.RightMargin = 0;
}
}
}
// apply the target position
var targetPoint = _target.Point;
var targetBounds = _target.Bounds;
if (lp != null)
{
targetPoint = new Point(targetPoint.X - lp.LeftMargin, targetPoint.Y - lp.TopMargin);
}
Position = targetPoint;
// now figure out whether to put content above or below it
var height = MeasuredHeight;
var midPoint = height / 2;
var yPos = targetPoint.Y;
var radius = Math.Max(targetBounds.Height(), targetBounds.Width()) / 2;
if (_shape != null)
{
_shape.UpdateTarget(_target);
radius = _shape.Height / 2;
}
if (_shape is NoShape)
{
_contentTopMargin = 0;
_contentBottomMargin = 0;
_gravity = GravityFlags.Center;
}
else
{
if (yPos > midPoint)
{
// target is in lower half of screen, we'll sit above it
_contentTopMargin = 0;
_contentBottomMargin = (height - yPos) + radius + _shapePadding;
_gravity = GravityFlags.Bottom;
}
else
{
// target is in upper half of screen, we'll sit below it
_contentTopMargin = yPos + radius + _shapePadding;
_contentBottomMargin = 0;
_gravity = GravityFlags.Top;
}
}
}
ApplyLayoutParams();
}
