/// <summary>
/// Initializes all the parts and controls of the parallaxing screen.
/// </summary>
/// <param name="background"></param>
void Initialize()
{
// Set up the parallax.
parallaxScrollView = new UIScrollView(this.Frame);
// Set the default scroll height for the frame.
// This is the offset where the content goes when it's snapped to the top.
defaultScrollOffset = this.Frame.Height - 130 - 60 - 40;
// Set up our darkening layer.
darkerLayer = new UIView(this.Frame);
darkerLayer.BackgroundColor = UIColor.Black;
darkerLayer.Alpha = 0;
// Set up our scrolling.
scrollView = new Views.FadingScrollView(this.Frame)
{
ShowsHorizontalScrollIndicator = false,
ShowsVerticalScrollIndicator = false,
DecelerationRate = UIScrollView.DecelerationRateNormal
};
// Add some events to handle the scrolling.
scrollView.Scrolled += ScrollViewDidScroll;
scrollView.DraggingEnded += ScrollViewDraggingEnded;
scrollView.DecelerationEnded += ScrollViewDecelerationEnded;
// Makes sure that a tap scrolls the view up a bit.
var tap = new UITapGestureRecognizer();
tap.AddTarget(() => { if (scrollView.ContentOffset.Y == 0) ScrollTo(0, defaultScrollOffset); });
scrollView.AddGestureRecognizer(tap);
// Setup the picture frame. We make it higher then the view is due to parallax.
RectangleF frame = this.Frame;
frame.Size = new SizeF(frame.Width, frame.Height + frame.Height / parallaxSpeedRatio);
// Set up the pictures.
backgroundPhoto = new UIImageView(frame) {
AutoresizingMask = UIViewAutoresizing.FlexibleHeight,
ContentMode = UIViewContentMode.ScaleAspectFill
};
backgroundPhotoWithImageEffects = new UIImageView(frame) {
ContentMode = UIViewContentMode.ScaleAspectFill,
AutoresizingMask = UIViewAutoresizing.FlexibleHeight,
Alpha = 0
};
// Create the header.
header = new ParallaxBlurHeaderView(new RectangleF(0, 0, 320, 50));
header.OnTapped += HeaderOnTapped;
// Add our items to the view.
parallaxScrollView.Add(backgroundPhoto);
parallaxScrollView.Add(backgroundPhotoWithImageEffects);
// Do the actual cross dissolve effect.
CrossDissolvePhotos(backgroundPhoto.Image, backgroundPhotoWithImageEffects.Image);
// Add our elements to the view.
this.Add(parallaxScrollView);
this.Add(darkerLayer);
this.Add(scrollView);
this.Add(header);
}
/// <summary>
/// Initializes all the parts and controls of the parallaxing screen.
/// </summary>
/// <param name="background"></param>
void Initialize()
{
// Set up the parallax.
parallaxScrollView = new UIScrollView(this.Frame);
// Set the default scroll height for the frame.
// This is the offset where the content goes when it's snapped to the top.
defaultScrollOffset = this.Frame.Height - 130 - 60 - 40;
// Set up our darkening layer.
darkerLayer = new UIView(this.Frame);
darkerLayer.BackgroundColor = UIColor.Black;
darkerLayer.Alpha = 0;
// Set up our scrolling.
scrollView = new Views.FadingScrollView(this.Frame)
{
ShowsHorizontalScrollIndicator = false,
ShowsVerticalScrollIndicator = false,
DecelerationRate = UIScrollView.DecelerationRateNormal
};
// Add some events to handle the scrolling.
scrollView.Scrolled += ScrollViewDidScroll;
scrollView.DraggingEnded += ScrollViewDraggingEnded;
scrollView.DecelerationEnded += ScrollViewDecelerationEnded;
// Makes sure that a tap scrolls the view up a bit.
var tap = new UITapGestureRecognizer();
tap.AddTarget(() => { if (scrollView.ContentOffset.Y == 0)
{
ScrollTo(0, defaultScrollOffset);
}
});
scrollView.AddGestureRecognizer(tap);
// Setup the picture frame. We make it higher then the view is due to parallax.
RectangleF frame = this.Frame;
frame.Size = new SizeF(frame.Width, frame.Height + frame.Height / parallaxSpeedRatio);
// Set up the pictures.
backgroundPhoto = new UIImageView(frame)
{
AutoresizingMask = UIViewAutoresizing.FlexibleHeight,
ContentMode = UIViewContentMode.ScaleAspectFill
};
backgroundPhotoWithImageEffects = new UIImageView(frame)
{
ContentMode = UIViewContentMode.ScaleAspectFill,
AutoresizingMask = UIViewAutoresizing.FlexibleHeight,
Alpha = 0
};
// Create the header.
header = new ParallaxBlurHeaderView(new RectangleF(0, 0, 320, 50));
header.OnTapped += HeaderOnTapped;
// Add our items to the view.
parallaxScrollView.Add(backgroundPhoto);
parallaxScrollView.Add(backgroundPhotoWithImageEffects);
// Do the actual cross dissolve effect.
CrossDissolvePhotos(backgroundPhoto.Image, backgroundPhotoWithImageEffects.Image);
// Add our elements to the view.
this.Add(parallaxScrollView);
this.Add(darkerLayer);
this.Add(scrollView);
this.Add(header);
}