INSPullToRefresh 项目教程

INSPullToRefresh 项目教程

INSPullToRefreshA simple to use very generic pull-to-refresh and infinite scrolling functionalities as a UIScrollView category.项目地址:https://gitcode.com/gh_mirrors/in/INSPullToRefresh

1. 项目的目录结构及介绍

INSPullToRefresh 项目的目录结构如下：

INSPullToRefresh/
├── Example/
│   ├── INSPullToRefreshSampleControls/
│   └── Screens/
├── INSPullToRefresh/
│   ├── UIScrollView+INSPullToRefresh/
│   └── ...
├── LICENSE
├── README.md
├── INSPullToRefresh.podspec
└── ...

目录介绍：

• Example/: 包含示例项目的代码和资源。
  • INSPullToRefreshSampleControls/: 示例项目的主要控制代码。
  • Screens/: 示例项目的屏幕截图。
• INSPullToRefresh/: 库的核心代码。
  • UIScrollView+INSPullToRefresh/: UIScrollView 的扩展，实现下拉刷新功能。
• LICENSE: 项目的许可证文件。
• README.md: 项目的说明文档。
• INSPullToRefresh.podspec: CocoaPods 的配置文件。

2. 项目的启动文件介绍

项目的启动文件位于 Example/INSPullToRefreshSampleControls/ 目录下，主要文件包括：

• AppDelegate.swift: 应用程序的入口点，负责初始化应用和设置根视图控制器。
• ViewController.swift: 示例项目的主视图控制器，包含下拉刷新的实现代码。

AppDelegate.swift

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        window = UIWindow(frame: UIScreen.main.bounds)
        window?.rootViewController = UINavigationController(rootViewController: ViewController())
        window?.makeKeyAndVisible()
        return true
    }
}

ViewController.swift

import UIKit
import INSPullToRefresh

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        // 设置下拉刷新
        let defaultFrame = CGRect(x: 0, y: 0, width: 24, height: 24)
        let pullToRefresh = INSDefaultPullToRefresh(frame: defaultFrame, backImage: UIImage(named: "default_child"), frontImage: UIImage(named: "default_user"))
        self.tableView.ins_pullToRefreshBackgroundView.delegate = pullToRefresh
        self.tableView.ins_pullToRefreshBackgroundView.addSubview(pullToRefresh)
    }
}

3. 项目的配置文件介绍

项目的配置文件主要是 INSPullToRefresh.podspec，用于通过 CocoaPods 集成库。

INSPullToRefresh.podspec

Pod::Spec.new do |spec|
  spec.name         = "INSPullToRefresh"
  spec.version      = "1.0.0"
  spec.summary      = "A simple to use very generic pull-to-refresh and infinite scrolling functionalities as a UIScrollView category."
  spec.homepage     = "https://github.com/m1entus/INSPullToRefresh"
  spec.license      = { :type => "MIT", :file => "LICENSE" }
  spec.author       = { "Michał Zaborowski" => "m1entus@gmail.com" }
  spec.source       = { :git => "https://github.com/m1entus/INSPullToRefresh.git", :tag => spec.version.to_s }
  spec.platform     = :ios, "9.0"
  spec.source_files = "INSPullToRefresh/**/*.{h,m}"
  spec.requires_arc = true
end

使用方法

在 Podfile 中添加以下内容并运行 pod install：

pod 'INSPullToRefresh'

如果尚未安装 CocoaPods，可以参考 CocoaPods 官方文档 进行安装。

INSPullToRefreshA simple to use very generic pull-to-refresh and infinite scrolling functionalities as a UIScrollView category.项目地址:https://gitcode.com/gh_mirrors/in/INSPullToRefresh