TWPullUpView

Create pull up view with multiple sticky points with scrollView supported.

Features

• Multiple sticky points
• Only Support's Portrait
• Support's scrollView scroll connection (like AirBnb)

Installation

TWPullUpView is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'TWPullUpView'

Usage example

import TWPullUpView

override func viewDidLoad() {
    super.viewDidLoad()
    
    let pullUpView = MyPullUpViewController()
    pullUpView.stickyPoints = [.percent(0.3), .percent(0.6), .max]
    pullUpView.addOn(self, initialStickyPoint: .percent(0.3), animated: true)
    pullUpView.isPullUpScrollEnabled = true
    
    // Remove View
    pullUpView.removeView(animate: true)
}


class MyPullUpViewController: TWPullUpViewController {
    
}

Callback

// It get called before the view move to nearest sticky point
willMoveToPoint = { point in

}

// It get called after the view moved to the nearest sticky point
didMoveToPoint = { point in

}

// It get called when the user is panning the view
didChangePoint = { point in

}

// It get called when the user is panning and return's percentage of how much the view is opened.
// You can change the starting point of the percent by overriding 'startPercentFromPoint' the default is the min point in sticky array.
percentOfMinToMax = { percent in 

}

Usage for internal scrollView

class MyPullUpViewController: TWPullUpViewController {

    private func setView() {
        attachScrollView(tableView)
    }
}

Set Custom Options

public struct TWPullUpOption {
    /// Animation option to nearest sticky point when panning is ended
    public var animationDuration: Double = 0.3
    public var animationDamping: CGFloat = 1
    public var animationSpringVelocity: CGFloat = 0.4

    /// If view can pull up then max height. (When there is no scrollview inside)
    public var overMaxHeight: Bool = true

    /// If view can pull down then min Height
    public var underMinHeight: Bool = true

    /// Velocity of the panning to go to next sticky point
    /// If it is 0 it will move to next point right away.
    /// If it is CGFloat.infinity view will need to move more than half up or down to move to the next sticky point
    /// Recommend to use between 1000 ~ 3000
    public var moveToNextPointVelocity: CGFloat = 1500
}

class MyPullUpViewController: TWPullUpViewController {

    override var option: TWPullUpOption {
        return TWPullUpOption()
    }
}

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

License

TWPullUpView is available under the MIT license. See the LICENSE file for more info.