calvingit

import UIKit

extension UIView {
    /// UIView 添加 Auto Layout
    @objc func layout(_ constraints: [NSLayoutConstraint]) {
        translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate(constraints)
    }

calvingit

/// 简化多次赋值的变量初始化
public protocol Then {}
extension Then {
    @discardableResult
    @inlinable
    public func `do`(_ block: (Self) throws -> Void) rethrows -> Self  {
        try block(self)
        return self
    }
}

calvingit

https 代理

在 ~/.gitconfig 文件里配置

[http]
  proxy = socks5://127.0.0.1:1080
[https "github.com"]
  proxy = socks5://127.0.0.1:1080
 sslverify = false

calvingit

1. UITableView 在编辑模式下可以实现默认的排序功能

    // Override to support rearranging the table view.
    override func tableView(_ tableView: UITableView, moveRowAt fromIndexPath: IndexPath, to: IndexPath) {
        tableView.moveRow(at: fromIndexPath, to: to)
    }
       
    // Override to support conditional rearranging of the table view.
    override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {

calvingit

extension UIGestureRecognizer {
  
  private struct AssociatedKeys {
    static var action = "action"
  }
  
  private typealias GestureAction = ((UIGestureRecognizer) -> Void)
  
  private var action: GestureAction? {
    get {

calvingit

Popover

class ViewController: UIViewController {

    @IBAction func clicked(_ sender: Any) {

        let vc = UIHostingController(rootView: AlertView(cancel: {
            //
            self.dismiss(animated: true)

calvingit

extension View {
    func hideNavigationBar(_ hidden: Bool = true) -> some View {
        if #available(iOS 16.0, *) {
            return  self.toolbar(hidden ? .hidden : .visible)
        } else {
            // Fallback on earlier versions
           return self.navigationBarHidden(hidden)
        }
    }
}

calvingit

import UIKit

// MARK: - Initializers
extension UIAlertController {
	
    /// Create new alert view controller.
    ///
    /// - Parameters:
    ///   - style: alert controller's style.
    ///   - title: alert controller's title.

calvingit

import SwiftUI
import UIKit

/// 创建一个SwiftUI的容器View，将UIViewControler包含在内，即可预览
///
/// 如果要预览这个ViewController
///
/// ```swift
/// class ViewController: UIViewController {

calvingit

extension String {
    
    // 移除空白
    func removingWhitespace() -> String {
        let whitespacePattern = "\\s+"
        let regex = try? NSRegularExpression(pattern: whitespacePattern, options: .caseInsensitive)
        let range = NSRange(location: 0, length: count)
        return regex?.stringByReplacingMatches(in: self, options: [], range: range, withTemplate: "") ?? self
    }