BottomSheet

BottomSheet makes it easy to take advantage of the new UISheetPresentationController in SwiftUI with a simple .bottomSheet modifier on existing views.

1. Requirements
2. Integration
3. Usage
   • Presenting the Sheet
   • Customizing the Sheet

Requirements

• iOS 15+
• Xcode 13+

Integration

Swift Package Manager

BottomSheet can be added to your app via Swift Package Manager in Xcode using the following configuration:

dependencies: [
    .package(url: "https://github.com/adamfootdev/BottomSheet.git", from: "0.1.3")
]

Usage

To get started with BottomSheet, you'll need to import the framework first:

import BottomSheet

Presenting the Sheet

You can then apply the .bottomSheet modifier to any SwiftUI view, ensuring you attach a binding to the isPresented property - just like the standard .sheet modifier:

.bottomSheet(isPresented: $isPresented) {
    Text("Hello, world!")
}

BottomSheet also supports passing an Optional item to it, displaying the sheet if the item is not nil:

.bottomSheet(item: $item) {
    Text("Hello, world!")
}

Customizing the Sheet

BottomSheet can be customized in the same way a UISheetPresentationController can be customized in UIKit. This is done by specifying additional properties in the modifier:

.bottomSheet(
    isPresented: $isPresented,
    detents: [.medium(), .large()],
    largestUndimmedDetentIdentifier: .large,
    prefersGrabberVisible: true,
    prefersScrollingExpandsWhenScrolledToEdge: true,
    prefersEdgeAttachedInCompactHeight: false,
    widthFollowsPreferredContentSizeWhenEdgeAttached: false,
    onDismiss: { print("Dismissed") }
) {
    Text("Hello, world!")
}

For more information on UISheetPresentationController, read Apple's documentation: https://developer.apple.com/documentation/uikit/uisheetpresentationcontroller

Please note BottomSheet is currently missing the ability to be resized programmatically as the delegate doesn't work in iOS 15 beta 1. You may also run into issues when used on an iPad with multi-window support and have multiple instances of the same app side-by-side running.