Peek和Pop功能开发（3D Touch开发之一）

来源：互联网发布：java搭建视频服务器编辑：程序博客网时间：2024/06/05 07:36

1、哪些设备支持3D Touch

iPhone 6s/Plus、iPhone 7s/Plus、iPhone 8s/Plus、iPhone X（系统必须是iOS9或者更新的版本）

2、怎么实现Peek和Pop功能

要实现Peek和Pop，必须实现UIViewControllerPreviewingDelegate，此协议只有两个接口

1）Peek接口

public func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController?

2）Pop接口

 public func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController)

实现UIViewControllerPreviewingDelegate协议示例代码

extension ViewController: UIViewControllerPreviewingDelegate {func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController? {    guard let sorce = storyboard?.instantiateViewController(withIdentifier: "GameViewController") else {        return nil;    }    // Peek弹出窗口的Size    sorce.preferredContentSize = CGSize(width: 0.0, height: 500)     // 预览区域(你所按位置附近一块区域)    previewingContext.sourceRect = CGRect(x: 0, y: location.y - 100, width: view.bounds.size.width, height: 100)    print("Peek")    return sorce}func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController) {    show(viewControllerToCommit, sender: self);    print("Pop")}}

此外还需要注册一个视图来响应3D Touch操作

   override func viewDidLoad() {    super.viewDidLoad()    // Do any additional setup after loading the view, typically from a nib.    if traitCollection.forceTouchCapability == .available {        // 注册一个View来响应 3D Touch操作(Peek Or Pop)        registerForPreviewing(with: self, sourceView: view)        print("你的设备支持3D Touch")    }}

3、Demo下载

PeekAndPop

阅读全文

0 0