A C#/Xamarin based implementation of the Android Snackbar for iOS.

TTGSnackbar is useful for showing a brief message at the bottom of the screen with an action button.
It appears above all other elements on screen and only one can be displayed at a time.
It disappears after a timeout or after user click the action button.

iOS 8+

var snackbar = new TTGSnackbar("Message", TTGSnackbarDuration.Short);
snackbar.Show();

var snackbar = new TTGSnackbar("Message", TTGSnackbarDuration.Long, "Cancel", () => { Console.WriteLine("clicked");});   
snackbar.Show();

var snackbar = new TTGSnackbar("Message", TTGSnackbarDuration.Forever, "Cancel", async (s) => {
				await Task.Delay(3000);
				s.dismiss();
			});
snackbar.Show();

var snackbar = new TTGSnackbar("Message", TTGSnackbarDuration.Long, "Cancel", () => { Console.WriteLine("clicked");});
snackbar.Icon = UIImage.FromBundle("EmojiCool");
snackbar.Show();

var snackbar = new TTGSnackbar("Message", TTGSnackbarDuration.Middle);

// Action 1
snackbar.ActionText = "Yes";
snackbar.ActionTextColor = UIColor.Green;
snackbar.ActionBlock = (t) => { Console.WriteLine("clicked yes"); };

// Action 2
snackbar.SecondActionText = "No";
snackbar.SecondActionTextColor = UIColor.Purple;
snackbar.SecondActionBlock = (t) => { Console.WriteLine("clicked no"); };

snackbar.Show();

message: String defines the message to diaplay.

messageTextColor: UIColor defines the message text color.

messageTextFont: UIFont defines the message text font.

duration: TTGSnackbarDurationdefines the display duration.
TTGSnackbarDuration : Short, Middle, Long and Forever.
When you set Forever, the snackbar will show an activity indicator after user click the action button and you must dismiss the snackbar manually.

actionText: String defines the action button title.

actionTextColor: UIColor defines the action button title color.

actionTextFont: UIFont defines the action button title font.

actionBlock: TTGActionBlock? will be called when user click the action button.

// TTGActionBlock definition.
public Action<TTGSnackbar> ActionBlock

secondActionText: String  
secondActionTextColor: UIColor  
secondActionTextFont: UIFont  
secondActionBlock: TTGActionBlock?

dismissBlock: TTGDismissBlock? will be called when snackbar dismiss automatically or when user click action button to dismiss the snackbar.

// TTGDismissBlock definition.
public typealias TTGDismissBlock = (snackbar: TTGSnackbar) -> Void

animationType: TTGSnackbarAnimationType defines the style of snackbar when it show and dismiss.

TTGSnackbarAnimationType : FadeInFadeOut, SlideFromBottomToTop, SlideFromBottomBackToBottom, SlideFromLeftToRight, SlideFromRightToLeft and Flip.

The default value of animationType is SlideFromBottomBackToBottom, which is the same as Snackbar in Android.

animationDuration: NSTimeInterval defines the duration of show and hide animation.

leftMargin: CGFloat, rightMargin: CGFloat and bottomMargin: CGFloat define the margins of snackbar.

height: CGFloat defines the height of snackbar.

cornerRadius: CGFloat defines the corner radius of snackbar.

This is a port of https://github.com/zekunyan/TTGSnackbar/. All credits go to zekunynan.