void updateImage()
{
UIImage effectImage = null;
effectImage = image.ApplyLightEffect();
loginBackgroundImage.Image = effectImage;
}
partial void Update(UITapGestureRecognizer sender)
{
UIImage effectImage = null;
var effectText = string.Empty;
var effectColor = UIColor.White;
switch (currentEffect)
{
case EffectType.None:
currentEffect = EffectType.Light;
effectImage = image.ApplyLightEffect();
effectText = "Light";
break;
case EffectType.Light:
currentEffect = EffectType.ExtraLight;
effectImage = image.ApplyExtraLightEffect();
effectText = "Extra Light";
effectColor = UIColor.LightGray;
break;
case EffectType.ExtraLight:
currentEffect = EffectType.Dark;
effectImage = image.ApplyDarkEffect();
effectText = "Dark";
effectColor = UIColor.DarkGray;
break;
case EffectType.Dark:
currentEffect = EffectType.ColorTint;
effectImage = image.ApplyTintEffect(UIColor.Blue);
effectText = "Color tint";
effectColor = UIColor.DarkGray;
break;
case EffectType.ColorTint:
currentEffect = EffectType.None;
effectImage = image;
break;
}
imageView.Image = effectImage;
effectLabel.Text = effectText;
effectLabel.TextColor = effectColor;
}
void UpdateImage(UITapGestureRecognizer recognizer)
{
if (imageIndex > 4)
{
imageIndex = 0;
}
string effectText = "";
UIImage effectImage = null;
switch (imageIndex)
{
case 0:
effectImage = image;
break;
case 1:
effectImage = image.ApplyLightEffect();
effectText = "Light";
effectLabel.TextColor = UIColor.White;
break;
case 2:
effectImage = image.ApplyExtraLightEffect();
effectText = "Extra Light";
effectLabel.TextColor = UIColor.LightGray;
break;
case 3:
effectImage = image.ApplyDarkEffect();
effectText = "Dark";
effectLabel.TextColor = UIColor.DarkGray;
break;
case 4:
effectImage = image.ApplyTintEffect(UIColor.Blue);
effectText = "Color tint";
effectLabel.TextColor = UIColor.DarkGray;
break;
default:
break;
}
imageView.Image = effectImage;
effectLabel.Text = effectText;
imageIndex++;
}
void ApplyBackgroundToView(UIButton button, UIView backgroundView)
{
// This makes sure we have the coordinates relative to the backgroundView. Without this, the image drawn
// for the button would be at the incorrect place of the background.
RectangleF buttonRectInBGViewCoords = button.ConvertRectToView(button.Bounds, backgroundView);
UIGraphics.BeginImageContextWithOptions(button.Frame.Size, false, window.Screen.Scale);
// Make a new image of the backgroundView (basically a screenshot of the view)
backgroundView.DrawViewHierarchy(new RectangleF(-buttonRectInBGViewCoords.X, -buttonRectInBGViewCoords.Y,
backgroundView.Frame.Width, backgroundView.Frame.Height), true);
UIImage newBGImage = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
// Apply the blur effect
newBGImage = newBGImage.ApplyLightEffect();
// Set the blurred image as the background for the button
button.SetBackgroundImage(newBGImage, UIControlState.Normal);
button.Layer.CornerRadius = 4.0f;
button.Layer.MasksToBounds = true;
}
