void DismissWorker()
{
SetFadeoutTimer(null);
UIView.Animate(0.3, 0, UIViewAnimationOptions.CurveEaseIn | UIViewAnimationOptions.AllowUserInteraction,
delegate {
HudView.Transform.Scale(0.8f, 0.8f);
this.Alpha = 0;
}, delegate {
if (Alpha == 0)
{
InvokeOnMainThread(delegate {
NSNotificationCenter.DefaultCenter.RemoveObserver(this);
CancelRingLayerAnimation();
StringLabel.RemoveFromSuperview();
SpinnerView.RemoveFromSuperview();
ImageView.RemoveFromSuperview();
CancelHudButton.RemoveFromSuperview();
StringLabel = null;
SpinnerView = null;
ImageView = null;
CancelHudButton = null;
HudView.RemoveFromSuperview();
HudView = null;
OverlayView.RemoveFromSuperview();
OverlayView = null;
this.RemoveFromSuperview();
});
}
});
}
void ShowImageWorker(UIImage image, string status, TimeSpan duration)
{
_progress = -1;
CancelRingLayerAnimation();
//this should happen when Dismiss is called, but it happens AFTER the animation ends
// so sometimes, the cancel button is left on :(
if (CancelHudButton != null)
{
CancelHudButton.RemoveFromSuperview();
CancelHudButton = null;
}
if (!IsVisible)
{
Show();
}
ImageView.Image = image;
ImageView.Hidden = false;
StringLabel.Text = status;
UpdatePosition();
SpinnerView.StopAnimating();
StartDismissTimer(duration);
}
void ShowProgressWorker(float progress = -1, string status = null, MaskType maskType = MaskType.None, bool textOnly = false,
ToastPosition toastPosition = ToastPosition.Center, string cancelCaption = null, Action cancelCallback = null,
double timeoutMs = 1000, bool showContinuousProgress = false, UIImage displayContinuousImage = null)
{
Ring.ResetStyle(IsiOS7ForLookAndFeel, (IsiOS7ForLookAndFeel ? TintColor : UIColor.White));
if (OverlayView.Superview == null)
{
var windows = UIApplication.SharedApplication.Windows;
Array.Reverse(windows);
foreach (UIWindow window in windows)
{
if (!window.Hidden && window.IsKeyWindow)
{
window.AddSubview(OverlayView);
break;
}
}
}
if (Superview == null)
{
OverlayView.AddSubview(this);
}
_fadeoutTimer = null;
ImageView.Hidden = true;
_maskType = maskType;
_progress = progress;
StringLabel.Text = status;
if (!string.IsNullOrEmpty(cancelCaption))
{
CancelHudButton.SetTitle(cancelCaption, UIControlState.Normal);
CancelHudButton.TouchUpInside += delegate
{
Dismiss();
if (cancelCallback != null)
{
obj.InvokeOnMainThread(() => cancelCallback.DynamicInvoke(null));
//cancelCallback.DynamicInvoke(null);
}
};
}
UpdatePosition(textOnly);
if (showContinuousProgress)
{
if (displayContinuousImage != null)
{
_displayContinuousImage = true;
ImageView.Image = displayContinuousImage;
ImageView.Hidden = false;
}
RingLayer.StrokeEnd = 0.0f;
StartProgressTimer(TimeSpan.FromMilliseconds(Ring.ProgressUpdateInterval));
}
else
{
if (progress >= 0)
{
ImageView.Image = null;
ImageView.Hidden = false;
SpinnerView.StopAnimating();
RingLayer.StrokeEnd = progress;
}
else if (textOnly)
{
CancelRingLayerAnimation();
SpinnerView.StopAnimating();
}
else
{
CancelRingLayerAnimation();
SpinnerView.StartAnimating();
}
}
bool cancelButtonVisible = _cancelHud != null && _cancelHud.IsDescendantOfView(_hudView);
// intercept user interaction with the underlying view
if (maskType != MaskType.None || cancelButtonVisible)
{
OverlayView.UserInteractionEnabled = true;
//AccessibilityLabel = status;
//IsAccessibilityElement = true;
}
else
{
OverlayView.UserInteractionEnabled = false;
//hudView.IsAccessibilityElement = true;
}
OverlayView.Hidden = false;
this.toastPosition = toastPosition;
PositionHUD(null);
if (Alpha != 1)
{
RegisterNotifications();
HudView.Transform.Scale(1.3f, 1.3f);
if (isClear)
{
Alpha = 1f;
HudView.Alpha = 0f;
}
UIView.Animate(0.15f, 0,
UIViewAnimationOptions.AllowUserInteraction | UIViewAnimationOptions.CurveEaseOut | UIViewAnimationOptions.BeginFromCurrentState,
delegate
{
HudView.Transform.Scale((float)1 / 1.3f, (float)1f / 1.3f);
if (isClear)
{
HudView.Alpha = 1f;
}
else
{
Alpha = 1f;
}
}, delegate
{
//UIAccessibilityPostNotification(UIAccessibilityScreenChangedNotification, string);
if (textOnly)
{
StartDismissTimer(TimeSpan.FromMilliseconds(timeoutMs));
}
});
SetNeedsDisplay();
}
}
void UpdatePosition(bool textOnly = false)
{
nfloat hudWidth = 100f;
nfloat hudHeight = 100f;
nfloat stringWidth = 0f;
nfloat stringHeight = 0f;
nfloat stringHeightBuffer = 20f;
nfloat stringAndImageHeightBuffer = 80f;
CGRect labelRect = new CGRect();
string @string = StringLabel.Text;
// False if it's text-only
bool imageUsed = (ImageView.Image != null) || (ImageView.Hidden);
if (textOnly)
{
imageUsed = false;
}
if (imageUsed)
{
hudHeight = stringAndImageHeightBuffer + stringHeight;
}
else
{
hudHeight = (textOnly ? stringHeightBuffer : stringHeightBuffer + 40);
}
if (!string.IsNullOrEmpty(@string))
{
int lineCount = Math.Min(10, @string.Split('\n').Length + 1);
if (IsIOS7OrNewer)
{
var stringSize = new NSString(@string).GetBoundingRect(new CGSize(200, 30 * lineCount), NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes {
Font = StringLabel.Font
},
null);
stringWidth = stringSize.Width;
stringHeight = stringSize.Height;
}
else
{
var stringSize = new NSString(@string).StringSize(StringLabel.Font, new CGSize(200, 30 * lineCount));
stringWidth = stringSize.Width;
stringHeight = stringSize.Height;
}
hudHeight += stringHeight;
if (stringWidth > hudWidth)
{
hudWidth = (float)Math.Ceiling(stringWidth / 2) * 2;
}
float labelRectY = imageUsed ? 66 : 9;
if (hudHeight > 100)
{
labelRect = new CGRect(12, labelRectY, hudWidth, stringHeight);
hudWidth += 24;
}
else
{
hudWidth += 24;
labelRect = new CGRect(0, labelRectY, hudWidth, stringHeight);
}
}
// Adjust for Cancel Button
var cancelRect = new CGRect();
string @cancelCaption = _cancelHud == null ? null : CancelHudButton.Title(UIControlState.Normal);
if (!string.IsNullOrEmpty(@cancelCaption))
{
const int gap = 20;
if (IsIOS7OrNewer)
{
var stringSize = new NSString(@cancelCaption).GetBoundingRect(new CGSize(200, 300), NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes {
Font = StringLabel.Font
},
null);
stringWidth = stringSize.Width;
stringHeight = stringSize.Height;
}
else
{
var stringSize = new NSString(@cancelCaption).StringSize(StringLabel.Font, new CGSize(200, 300));
stringWidth = stringSize.Width;
stringHeight = stringSize.Height;
}
if (stringWidth > hudWidth)
{
hudWidth = (float)Math.Ceiling(stringWidth / 2) * 2;
}
// Adjust for label
nfloat cancelRectY = 0f;
if (labelRect.Height > 0)
{
cancelRectY = labelRect.Y + labelRect.Height + (nfloat)gap;
}
else
{
if (string.IsNullOrEmpty(@string))
{
cancelRectY = 76;
}
else
{
cancelRectY = (imageUsed ? 66 : 9);
}
}
if (hudHeight > 100)
{
cancelRect = new CGRect(12, cancelRectY, hudWidth, stringHeight);
labelRect = new CGRect(12, labelRect.Y, hudWidth, labelRect.Height);
hudWidth += 24;
}
else
{
hudWidth += 24;
cancelRect = new CGRect(0, cancelRectY, hudWidth, stringHeight);
labelRect = new CGRect(0, labelRect.Y, hudWidth, labelRect.Height);
}
CancelHudButton.Frame = cancelRect;
hudHeight += (cancelRect.Height + (string.IsNullOrEmpty(@string) ? 10 : gap));
}
HudView.Bounds = new CGRect(0, 0, hudWidth, hudHeight);
if (!string.IsNullOrEmpty(@string))
{
ImageView.Center = new CGPoint(HudView.Bounds.Width / 2, 36);
}
else
{
ImageView.Center = new CGPoint(HudView.Bounds.Width / 2, HudView.Bounds.Height / 2);
}
StringLabel.Hidden = false;
StringLabel.Frame = labelRect;
if (!textOnly)
{
if (!string.IsNullOrEmpty(@string) || !string.IsNullOrEmpty(@cancelCaption))
{
SpinnerView.Center = new CGPoint((float)Math.Ceiling(HudView.Bounds.Width / 2.0f) + 0.5f, 40.5f);
if (_progress != -1)
{
BackgroundRingLayer.Position = RingLayer.Position = new CGPoint(HudView.Bounds.Width / 2, 36f);
}
}
else
{
SpinnerView.Center = new CGPoint((float)Math.Ceiling(HudView.Bounds.Width / 2.0f) + 0.5f, (float)Math.Ceiling(HudView.Bounds.Height / 2.0f) + 0.5f);
if (_progress != -1)
{
BackgroundRingLayer.Position = RingLayer.Position = new CGPoint(HudView.Bounds.Width / 2, HudView.Bounds.Height / 2.0f + 0.5f);
}
}
}
}
void UpdatePosition(bool textOnly = false)
{
float hudWidth = 100f;
float hudHeight = 100f;
float stringWidth = 0f;
float stringHeight = 0f;
RectangleF labelRect = new RectangleF();
string @string = StringLabel.Text;
// False if it's text-only
bool imageUsed = (ImageView.Image != null) || (ImageView.Hidden);
if (textOnly)
{
imageUsed = false;
}
if (imageUsed)
{
hudHeight = 80;
}
else
{
hudHeight = (textOnly ? 20 : 60);
}
if (!string.IsNullOrEmpty(@string))
{
SizeF stringSize = new NSString(@string).StringSize(StringLabel.Font, new SizeF(200, 300));
stringWidth = stringSize.Width;
stringHeight = stringSize.Height;
hudHeight += stringHeight;
if (stringWidth > hudWidth)
{
hudWidth = (float)Math.Ceiling(stringWidth / 2) * 2;
}
float labelRectY = imageUsed ? 66 : 9;
if (hudHeight > 100)
{
labelRect = new RectangleF(12, labelRectY, hudWidth, stringHeight);
hudWidth += 24;
}
else
{
hudWidth += 24;
labelRect = new RectangleF(0, labelRectY, hudWidth, stringHeight);
}
}
// Adjust for Cancel Button
var cancelRect = new RectangleF();
string @cancelCaption = CancelHudButton.Title(UIControlState.Normal);
if (!string.IsNullOrEmpty(@cancelCaption))
{
const int gap = 20;
SizeF stringSize = new NSString(@cancelCaption).StringSize(StringLabel.Font, new SizeF(200, 300));
stringWidth = stringSize.Width;
stringHeight = stringSize.Height;
if (stringWidth > hudWidth)
{
hudWidth = (float)Math.Ceiling(stringWidth / 2) * 2;
}
// Adjust for label
float cancelRectY = 0f;
if (labelRect.Height > 0)
{
cancelRectY = labelRect.Y + labelRect.Height + gap;
}
else
{
cancelRectY = (imageUsed ? 66 : 9);
}
if (hudHeight > 100)
{
cancelRect = new RectangleF(12, cancelRectY, hudWidth, stringHeight);
labelRect = new RectangleF(12, labelRect.Y, hudWidth, stringHeight);
hudWidth += 24;
}
else
{
hudWidth += 24;
cancelRect = new RectangleF(0, cancelRectY, hudWidth, stringHeight);
labelRect = new RectangleF(0, labelRect.Y, hudWidth, stringHeight);
}
CancelHudButton.Frame = cancelRect;
hudHeight += (cancelRect.Height + gap);
}
HudView.Bounds = new RectangleF(0, 0, hudWidth, hudHeight);
if (!string.IsNullOrEmpty(@string))
{
ImageView.Center = new PointF(HudView.Bounds.Width / 2, 36);
}
else
{
ImageView.Center = new PointF(HudView.Bounds.Width / 2, HudView.Bounds.Height / 2);
}
StringLabel.Hidden = false;
StringLabel.Frame = labelRect;
if (!textOnly)
{
if (!string.IsNullOrEmpty(@string))
{
SpinnerView.Center = new PointF((float)Math.Ceiling(HudView.Bounds.Width / 2.0f) + 0.5f, 40.5f);
if (_progress != -1)
{
BackgroundRingLayer.Position = RingLayer.Position = new PointF(HudView.Bounds.Width / 2, 36f);
}
}
else
{
SpinnerView.Center = new PointF((float)Math.Ceiling(HudView.Bounds.Width / 2.0f) + 0.5f, (float)Math.Ceiling(HudView.Bounds.Height / 2.0f) + 0.5f);
if (_progress != -1)
{
BackgroundRingLayer.Position = RingLayer.Position = new PointF(HudView.Bounds.Width / 2, HudView.Bounds.Height / 2.0f + 0.5f);
}
}
}
}
/*
* void ShowProgressWorker(string cancelCaption, Delegate cancelCallback, float progress = -1, string status = null, MaskType maskType = MaskType.None){
* CancelHudButton.SetTitle(cancelCaption, UIControlState.Normal);
* CancelHudButton.TouchUpInside += delegate {
* BTProgressHUD.Dismiss();
* if(cancelCallback != null){
* cancelCallback.DynamicInvoke(null);
* }
* };
* UpdatePosition();
* ShowProgressWorker(progress, status, maskType);
* }
*/
void ShowProgressWorker(float progress = -1, string status = null, MaskType maskType = MaskType.None, bool textOnly = false,
bool showToastCentered = true, string cancelCaption = null, Action cancelCallback = null, double timeoutMs = 1000)
{
if (OverlayView.Superview == null)
{
UIApplication.SharedApplication.KeyWindow.AddSubview(OverlayView);
}
if (Superview == null)
{
OverlayView.AddSubview(this);
}
_fadeoutTimer = null;
ImageView.Hidden = true;
_maskType = maskType;
_progress = progress;
StringLabel.Text = status;
if (!string.IsNullOrEmpty(cancelCaption))
{
CancelHudButton.SetTitle(cancelCaption, UIControlState.Normal);
CancelHudButton.TouchUpInside += delegate {
BTProgressHUD.Dismiss();
if (cancelCallback != null)
{
obj.InvokeOnMainThread(() => cancelCallback.DynamicInvoke(null));
//cancelCallback.DynamicInvoke(null);
}
};
}
UpdatePosition(textOnly);
if (progress >= 0)
{
ImageView.Image = null;
ImageView.Hidden = false;
SpinnerView.StopAnimating();
RingLayer.StrokeEnd = progress;
}
else if (textOnly)
{
CancelRingLayerAnimation();
SpinnerView.StopAnimating();
}
else
{
CancelRingLayerAnimation();
SpinnerView.StartAnimating();
}
if (maskType != MaskType.None)
{
OverlayView.UserInteractionEnabled = true;
//AccessibilityLabel = status;
//IsAccessibilityElement = true;
}
else
{
OverlayView.UserInteractionEnabled = true;
//hudView.IsAccessibilityElement = true;
}
OverlayView.Hidden = false;
this.showToastCentered = showToastCentered;
PositionHUD(null);
if (Alpha != 1)
{
RegisterNotifications();
HudView.Transform.Scale(1.3f, 1.3f);
UIView.Animate(0.15f, 0,
UIViewAnimationOptions.AllowUserInteraction | UIViewAnimationOptions.CurveEaseOut | UIViewAnimationOptions.BeginFromCurrentState,
delegate {
HudView.Transform.Scale((float)1 / 1.3f, (float)1f / 1.3f);
Alpha = 1;
}, delegate {
//UIAccessibilityPostNotification(UIAccessibilityScreenChangedNotification, string);
if (textOnly)
{
StartDismissTimer(TimeSpan.FromMilliseconds(timeoutMs));
}
});
SetNeedsDisplay();
}
}
