public static UIView MakeViewForMessage(this UIView self,string message,string title,UIImage image)
{
/***********************************************************************************
* *
* Dynamically build a toast view with any combination of message, title, & image. *
* *
***********************************************************************************/
if((message == null) && (title == null) && (image == null)) return null;
UILabel messageLabel = null;
UILabel titleLabel = null;
UIImageView imageView = null;
// create the parent view
WrapperView wrapperView = new WrapperView();
wrapperView.AutoresizingMask=(UIViewAutoresizing.FlexibleLeftMargin | UIViewAutoresizing.FlexibleRightMargin | UIViewAutoresizing.FlexibleTopMargin | UIViewAutoresizing.FlexibleBottomMargin);
wrapperView.Layer.CornerRadius=kCornerRadius;
if (kDisplayShadow)
{
wrapperView.Layer.ShadowColor=UIColor.Black.CGColor;
wrapperView.Layer.ShadowOpacity=0.8f;
wrapperView.Layer.ShadowRadius=6.0f;
wrapperView.Layer.ShadowOffset=CGSizeMake(4.0f, 4.0f);
}
wrapperView.BackgroundColor=UIColor.Black.ColorWithAlpha(kOpacity);
if(image != null)
{
imageView = new UIImageView(image);
imageView.ContentMode=UIViewContentMode.ScaleAspectFit;
imageView.Frame=CGRectMake(kHorizontalPadding, kVerticalPadding, kImageWidth, kImageHeight);
}
float imageWidth, imageHeight, imageLeft;
// the imageView frame values will be used to size & position the other views
if(imageView != null)
{
imageWidth = imageView.Bounds.Size.Width;
imageHeight = imageView.Bounds.Size.Height;
imageLeft = kHorizontalPadding;
}
else
{
imageWidth = imageHeight = imageLeft = 0.0f;
}
if (title != null)
{
titleLabel = new UILabel();
titleLabel.Lines = kMaxTitleLines;
titleLabel.Font = UIFont.BoldSystemFontOfSize(kFontSize);
titleLabel.TextAlignment=UITextAlignment.Left;
titleLabel.LineBreakMode=UILineBreakMode.WordWrap;
titleLabel.TextColor=UIColor.White;
titleLabel.BackgroundColor=UIColor.Clear;
titleLabel.Alpha=1.0f;
titleLabel.Text=title;
NSString titleS = new NSString(title);
// size the title label according to the length of the text
SizeF maxSizeTitle = CGSizeMake((self.Bounds.Size.Width * kMaxWidth) - imageWidth, self.Bounds.Size.Height * kMaxHeight);
SizeF expectedSizeTitle = titleS.StringSize(titleLabel.Font,maxSizeTitle,titleLabel.LineBreakMode);
titleLabel.Frame=CGRectMake(0.0f, 0.0f, expectedSizeTitle.Width, expectedSizeTitle.Height);
}
if (message != null)
{
messageLabel = new UILabel();
messageLabel.Lines=kMaxMessageLines;
messageLabel.Font=UIFont.SystemFontOfSize(kFontSize);
messageLabel.LineBreakMode=UILineBreakMode.WordWrap;
messageLabel.TextColor=UIColor.White;
messageLabel.BackgroundColor=UIColor.Clear;
messageLabel.Alpha=1.0f;
messageLabel.Text=message;
// size the message label according to the length of the text
NSString messageS = new NSString(message);
SizeF maxSizeMessage = CGSizeMake((self.Bounds.Size.Width * kMaxWidth) - imageWidth, self.Bounds.Size.Height * kMaxHeight);
SizeF expectedSizeMessage = messageS.StringSize(messageLabel.Font,maxSizeMessage,messageLabel.LineBreakMode);
messageLabel.Frame=CGRectMake(0.0f, 0.0f, expectedSizeMessage.Width, expectedSizeMessage.Height);
}
// titleLabel frame values
float titleWidth, titleHeight, titleTop, titleLeft;
if(titleLabel != null)
{
titleWidth = titleLabel.Bounds.Size.Width;
titleHeight = titleLabel.Bounds.Size.Height;
titleTop = kVerticalPadding;
titleLeft = imageLeft + imageWidth + kHorizontalPadding;
}
else
{
titleWidth = titleHeight = titleTop = titleLeft = 0.0f;
}
// messageLabel frame values
float messageWidth, messageHeight, messageLeft, messageTop;
if(messageLabel != null)
{
messageWidth = messageLabel.Bounds.Size.Width;
messageHeight = messageLabel.Bounds.Size.Height;
messageLeft = imageLeft + imageWidth + kHorizontalPadding;
messageTop = titleTop + titleHeight + kVerticalPadding;
}
else
{
messageWidth = messageHeight = messageLeft = messageTop = 0.0f;
}
float longerWidth = Math.Max(titleWidth, messageWidth);
float longerLeft = Math.Max(titleLeft, messageLeft);
// wrapper width uses the longerWidth or the image width, whatever is larger. same logic applies to the wrapper height
float wrapperWidth = Math.Max((imageWidth + (kHorizontalPadding * 2)), (longerLeft + longerWidth + kHorizontalPadding));
float wrapperHeight = Math.Max((messageTop + messageHeight + kVerticalPadding), (imageHeight + (kVerticalPadding * 2)));
wrapperView.Frame=CGRectMake(0.0f, 0.0f, wrapperWidth, wrapperHeight);
if(titleLabel != null)
{
titleLabel.Frame=CGRectMake(titleLeft, titleTop, titleWidth, titleHeight);
wrapperView.AddSubview(titleLabel);
}
if(messageLabel != null)
{
messageLabel.Frame=CGRectMake(messageLeft, messageTop, messageWidth, messageHeight);
wrapperView.AddSubview(messageLabel);
}
if(imageView != null)
{
wrapperView.AddSubview(imageView);
}
return wrapperView;
}
