TTGSnackbar

A Swift based implementation of the Android Snackbar for iOS

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About

TTGSnackbar is useful for showing a brief message at bottom or top of the screen with one or two action buttons. It appears above all other elements on screen.
It disappears after a timeout or after user click the action button.

Installation

Swift 5

Version 1.9.0+ Xcode 9+ iOS 8+

Swift 4

Version 1.6.0 Xcode 9
iOS 8+

Swift 3

Version 1.5.3 Xcode 8
iOS 8+

CocoaPods

You can use CocoaPods to install TTGSnackbar by adding it to your Podfile:

pod "TTGSnackbar"

Carthage

You can use Carthage to install TTGSnackbar by adding it to your Cartfile:

github "zekunyan/TTGSnackbar"

Import

And you need to import the module.

import TTGSnackbar

Usage

Show a simple message

let snackbar = TTGSnackbar(message: "TTGSnackbar !", duration: .short)
snackbar.show()

Show a simple message with an action button

let snackbar = TTGSnackbar(
    message: "TTGSnackBar !",
    duration: .middle,
    actionText: "Action!",
    actionBlock: { (snackbar) in
        print("Click action!")
    }
)
snackbar.show()

Show a simple message with a long running action

let snackbar = TTGSnackbar(
    message: "TTGSnackbar !",
    duration: .forever,
    actionText: "Action",
    actionBlock: { (snackbar) in
        print("Click action!")
        // Dismiss manually after 3 seconds
        DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(Int64(3 * Double(NSEC_PER_SEC))) / Doubl(NSEC_PER_SEC)) {
            snackbar.dismiss()
        }   
    }
)
snackbar.show()

Show a simple message with two action buttons

let snackbar = TTGSnackbar(message: "Two actions !", duration: .long)

// Action 1
snackbar.actionText = "Yes"
snackbar.actionTextColor = UIColor.green
snackbar.actionBlock = { (snackbar) in NSLog("Click Yes !") }

// Action 2
snackbar.secondActionText = "No"
snackbar.secondActionTextColor = UIColor.yellow
snackbar.secondActionBlock = { (snackbar) in NSLog("Click No !") }

snackbar.show()

Show a simple message with an icon image

let snackbar = TTGSnackbar(message: "TTGSnackbar !", duration: .long)

// Add icon image
snackbar.icon = UIImage(named: "emoji_cool_small")

snackbar.show()

[Improved!] Show custom content view in snackbar

// Instantiate the custom content view
let customContentView = UINib(nibName: "CustomView", bundle:Bundle.main).instantiate(withOwner: nil, options: nil).first as! UIView?

// Initialize the snackbar with the custom content view
let snackbar = TTGSnackbar(customContentView: customContentView, duration: .long)

snackbar.show()

Make use of the Gesture recognizers in snackbar

let snackbar = TTGSnackbar(message: "TTGSnackbar !", duration: .long)

// Add icon image
snackbar.icon = UIImage(named: "emoji_cool_small")

// Add the gesture recognizer callbacks
ssnackbar.onTapBlock = { snackbar in
    snackbar.dismiss()
}

snackbar.onSwipeBlock = { (snackbar, direction) in
    
    // Change the animation type to simulate being dismissed in that direction
    if direction == .right {
        snackbar.animationType = .slideFromLeftToRight
    } else if direction == .left {
        snackbar.animationType = .slideFromRightToLeft
    } else if direction == .up {
        snackbar.animationType = .slideFromTopBackToTop
    } else if direction == .down {
        snackbar.animationType = .slideFromTopBackToTop
    }
    
    snackbar.dismiss()
}

snackbar.show()

[New!] Automatic handling of Showing one Snackbar at a time

TTGSnackbarManager can handle automatically showing and replacing the presented Snackbars at your screen.

Usage:

Swift

let snackbar = TTGSnackbar(message: "TTGSnackbar !", duration: .long)
TTGSnackbarManager.show(snackbar)

Objective-c

TTGSnackbar *bar = [[TTGSnackbar alloc] initWithMessage:@"Bar1" duration:TTGSnackbarDurationMiddle];
[bar setDismissBlock:^(TTGSnackbar * snackBar) {
	//whatever you want for dismiss
}];
[[TTGSnackbarManager shared] showSnackbar: bar];

TTGSnackbarManager uses the dismissBlock property of a snackbar, it does not replace any functionality that you add to the snackbar, rather it just adds its own code to the existing block.

Customization

Message

message: String defines the message to display. Supports multi line text. Supports updating on the fly.

Message text color

messageTextColor: UIColor defines the message text color.

Message text font

messageTextFont: UIFont defines the message text font.

Display duration

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.

Action title

actionText: String defines the action button title.

Action title color

actionTextColor: UIColor defines the action button title color.

Action title font

actionTextFont: UIFont defines the action button title font.

Action max width

actionMaxWidth: CGFloat defines the action button max width. Min is 44.

Action text number of lines

actionTextNumberOfLines: Int defines the number of lines of action button title. Default is 1.

Action callback

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

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

Second action title, color, font and callback

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

Snackbar MaxWidth

snackbarMaxWidth: CGFloat will set the max width of the snackbar if on larger devices you don not want it full width. Default is -1 which is denotes full-width.

Dismiss callback

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

On Tap Gesture callback

onTapBlock: TTGActionBlock will be called when the user taps the snackbar.

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

On Swipe Gesture callback

onSwipeBlock: TTGSwipeBlock will be called when the user swipes on the snackbar

/// Swipe gesture callback closure
public typealias TTGSwipeBlock = (_ snackbar: TTGSnackbar, _ direction: UISwipeGestureRecognizerDirection) -> Void

Auto Dismissal using Swipe Gestures

shouldDismissOnSwipe: Bool will determine if the snackbar will automatically be dismissed when it's swiped

/// A property to make the snackbar auto dismiss on Swipe Gesture
public var shouldDismissOnSwipe: Bool = false

Animation type

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

TTGSnackbarAnimationType : fadeInFadeOut, slideFromBottomToTop, slideFromBottomBackToBottom, slideFromLeftToRight, slideFromRightToLeft, slideFromTopToBottom and slideFromTopBackToTop.

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

Animation duration

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

Margins

leftMargin: CGFloat, rightMargin: CGFloat, topMargin: CGFloat and bottomMargin: CGFloat defines the margins of snackbar

[New!] Custom Content View to follow left and right margins

shouldActivateLeftAndRightMarginOnCustomContentView: Bool will activate the left and right margins if using a customContentView

/// a property to enable left and right margin when using customContentView
public var shouldActivateLeftAndRightMarginOnCustomContentView: Bool = false

Padding (Content inset)

contentInset: UIEdgeInsets defines the padding(content inset) of content in the snackbar. Default is UIEdgeInsets.init(top: 0, left: 4, bottom: 0, right: 4).

Corner radius

cornerRadius: CGFloat def