/// <summary>Helps to force width value before calling requestLayout by the system.</summary>
public static void SetWidth(Android.Views.View view, int width)
{
// Change width value from params
((RecyclerView.LayoutParams)view.LayoutParameters).Width = width;
int widthMeasureSpec = View.MeasureSpec.MakeMeasureSpec(width, MeasureSpecMode.Exactly);
int heightMeasureSpec = View.MeasureSpec.MakeMeasureSpec(view.MeasuredHeight, MeasureSpecMode.Exactly);
view.Measure(widthMeasureSpec, heightMeasureSpec);
view.RequestLayout();
}
internal static void MaybeRequestLayout(this AView view)
{
var isInLayout = false;
if ((int)Build.VERSION.SdkInt >= 18)
{
isInLayout = view.IsInLayout;
}
if (!isInLayout && !view.IsLayoutRequested)
{
view.RequestLayout();
}
}
private void possiblyResizeChildOfContent()
{
int usableHeightNow = computeUsableHeight();
if (usableHeightNow != usableHeightPrevious)
{
int usableHeightSansKeyboard = mChildOfContent.RootView.Height;
int heightDifference = usableHeightSansKeyboard - usableHeightNow;
frameLayoutParams.Height = usableHeightSansKeyboard - heightDifference;
mChildOfContent.RequestLayout();
usableHeightPrevious = usableHeightNow;
}
}
void UpdateIsVisible()
{
VisualElement view = _renderer.Element;
AView aview = _renderer.View;
if (view.IsVisible && aview.Visibility != ViewStates.Visible)
{
aview.Visibility = ViewStates.Visible;
}
if (!view.IsVisible && aview.Visibility != ViewStates.Gone)
{
aview.Visibility = ViewStates.Gone;
}
aview.Invalidate();
aview.RequestLayout();
}
void AnimateImageView( View imageView, PointF startPos, PointF endPos, System.Drawing.SizeF startSize, System.Drawing.SizeF endSize, float duration, SimpleAnimator.AnimationComplete completeDelegate )
{
// calculate the deltas once before we start
float xDelta = endPos.X - startPos.X;
float yDelta = endPos.Y - startPos.Y;
float deltaWidth = endSize.Width - startSize.Width;
float deltaHeight = endSize.Height - startSize.Height;
// create an animator
SimpleAnimator_Float imageAnimator = new SimpleAnimator_Float( 0.00f, 1.00f, duration,
delegate( float percent, object value )
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
// each update, interpolate the deltas and apply
imageView.SetX( startPos.X + ( xDelta * percent ) );
imageView.SetY( startPos.Y + ( yDelta * percent ) );
imageView.LayoutParameters.Width = (int)( startSize.Width + ( deltaWidth * percent ) );
imageView.LayoutParameters.Height = (int)( startSize.Height + ( deltaHeight * percent ) );
// force the image to re-evaluate its size
imageView.RequestLayout( );
} );
},
//ANIMATION COMPLETE
delegate
{
if ( completeDelegate != null )
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
completeDelegate( );
} );
}
} );
imageAnimator.Start( );
}
