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finn-no/BottomSheet

Custom modal presentation style for thumb-friendly interactive views

CircleCI Carthage compatible CocoaPods compatible Swift Package Manager compatible

BottomSheet is an implementation of custom modal presentation style for thumb-friendly interactive views anchored to the bottom of the screen.

  • ☑ Custom UIViewControllerTransitioningDelegate for dismissable modal bottom sheets
  • BottomSheetView for displaying complementary content as a standard bottom sheet view
  • ☑ Expanding bottom sheets with multiple states to transition between
  • ☑ Support for automatic view height based on Auto Layout constraints
  • ☑ Beatiful spring animation

Demo

Installation

BottomSheet is available through Carthage. Append this line to your Cartfile:

github "finn-no/BottomSheet"

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

pod "FINNBottomSheet", git: "https://github.com/finn-no/BottomSheet.git"

To integrate using Apple's Swift package manager, add the following as a dependency to your Package.swift:

.package(name: "FINNBottomSheet", url: "https://github.com/finn-no/BottomSheet.git", .upToNextMajor(from: "1.0.0"))

Usage

View controller -based presentation:

import FINNBottomSheet

let transitioningDelegate = BottomSheetTransitioningDelegate(
    contentHeights: [.bottomSheetAutomatic, UIScreen.main.bounds.size.height - 200],
    startTargetIndex: 0
)
let viewController = UIViewController()
viewController.transitioningDelegate = transitioningDelegate
viewController.modalPresentationStyle = .custom

present(viewController, animated: true)

View -based presentation:

import FINNBottomSheet

let contentView = UIView()
contentView.backgroundColor = .red

let bottomSheetView = BottomSheetView(
    contentView: contentView,
    contentHeights: [100, 500]
)

// Can be presented in any UIView subclass
bottomSheetView.present(in: viewController.view, targetIndex: 0)

Known limitations

Using .bottomSheetAutomatic:

When using .bottomSheetAutomatic to calculate the content height and your view is constrained using the layoutMarginsGuide, you must be aware that the returned content height may actually be higher than the compressed layout size of your view. Also, it may result in the transition animation freezing. This problem is avoided simply by not using the layoutMarginsGuide.

BottomSheetTransitioningDelegate

To avoid "glitches" you might need to keep a strong reference to the transitioning delegate (BottomSheetTransitioningDelegate) until the bottom sheet animation is complete.

Create new releases

Setup

  • Install dependencies with bundle install (dependencies will be installed in ./bundler)
  • Fastlane will use the GitHub API, so make sure to create a personal access token here and place it within an environment variable called FINN_GITHUB_COM_ACCESS_TOKEN.
    • When creating a token, you only need to give access to the scope repo.
    • There are multiple ways to make an environment variable, for example by using a .env file or adding it to .bashrc/.bash_profile). Don't forget to run source .env (for whichever file you set the environment variables in) if you don't want to restart your shell.
    • Run bundle exec fastlane verify_environment_variable to see if it is configured correctly.
  • Run bundle exec fastlane verify_ssh_to_github to see if ssh to GitHub is working.

Make release

  • Run bundle exec fastlane and choose appropriate lane. Follow instructions, you will be asked for confirmation before all remote changes.
  • After the release has been created you can edit the description on GitHub by using the printed link.

Interesting things

Changelogs

This project has a Gemfile that specify some development dependencies, one of those is pr_changelog which is a tool that helps you to generate changelogs from the Git history of the repo. You install this by running bundle install.

To get the changes that have not been released yet just run:

$ pr_changelog

If you want to see what changes were released in the last version, run:

$ pr_changelog --last-release

You can always run the command with the --help flag when needed.

Github

link
Stars: 109
Last commit: 1 week ago

Releases

FINNBottomSheet 5.1.3 - 2021-02-17T10:02:16

  • #44: Exclude Info.plist from target in Package.swift