BBSwiftUIKit

A SwiftUI library with powerful UIKit features.

Features

• Get and set scroll view contentOffset
• Set scroll view isPagingEnabled, bounces and other properties
• Pull down or up table view to refresh data or load more data
• Reload table view data or rows
• Scroll table view to the specific row
• Get and set page control currentPage

Requirements

• iOS 13.0+
• Swift 5

Installation

Install with CocoaPods:

1. Add pod 'BBSwiftUIKit' to your Podfile.
2. Run pod install or pod update.
3. Add import BBSwiftUIKit to the Swift source file.

How to Use

Scroll View

Use BBScrollView with UIScrollView features.

// Content offset binding with scroll view content offset
@State var contentOffset: CGPoint = .zero

// Set CGPoint value to scroll to the content offset with animation. After scrolling, it will reset to nil automatically
@State var contentOffsetToScrollAnimated: CGPoint? = nil

// Create a scroll view scrolling horizontally
// Get and set content offset
BBScrollView(.horizontal, contentOffset: $contentOffset) {
    // Add views
    HStack {
        ...
    }
}
.bb_bounces(false) // Disable bounces
.bb_isPagingEnabled(true) // Enable paging
.bb_alwaysBounceHorizontal(true) // Enable always bounce horizontal
.bb_showsHorizontalScrollIndicator(false) // Hide horizontal scroll indicator
.bb_contentOffsetToScrollAnimated($contentOffsetToScrollAnimated) // Set content offset with animation

Table View

Use BBTableView with UITableView features.

// Set true to reload data. After reloading, it will reset to false automatically
@State var reloadData = false

// Set row indexes to reload rows. After reloading, it will reset to empty automatically
@State var reloadRows: [Int] = []

// Set row index to scroll to the specific row. After scrolling, it will reset to nil automatically
@State var scrollToRow: Int? = nil

// Pull down to refresh data. While refreshing, this value is true. After refreshing, we need to set it false to end refreshing
@State var isRefreshing: Bool = false

// Pull up to loading more data. We should manage this value to prevent calling load more function too many times
@State var isLoadingMore: Bool = false

// Create a table view with data
BBTableView(list) { item in
    // Add views
}
.bb_reloadData($reloadData) // Reload data
.bb_reloadRows($reloadRows, animation: .automatic) // Reload rows
.bb_scrollToRow($scrollToRow, position: .none, animated: true) // Scroll to row
.bb_setupRefreshControl { refreshControl in
    // Custom refresh control appearance
    refreshControl.tintColor = .blue
    refreshControl.attributedTitle = NSAttributedString(string: "Loading...", attributes: [.font: UIFont.systemFont(ofSize: 15), .foregroundColor: UIColor.blue])
}
.bb_pullDownToRefresh(isRefreshing: $isRefreshing) {
    // Pull down to refresh data
    // Now the value of isRefreshing is true
    self.loadNewData { newData in
        self.dataSource = newData // Update data source
        self.isRefreshing = false // End refreshing
    }
}
.bb_pullUpToLoadMore(bottomSpace: 30) {
    // Pull up to load more data
    if self.isLoadingMore { return } // Do not load more if it is loading more
    self.isLoadingMore = true // Mark it is loading more
    self.loadMoreData { moreData in
        self.dataSource.append(moreData) // Update data source
        self.isLoadingMore = false // Mark it is NOT loading more
    }
}

License

BBSwiftUIKit is released under the MIT license. See LICENSE for details.