iOS 10 有一个我想复制的功能。当您在 Apple Music 应用程序中对专辑进行 3D 触摸时，它会打开如下所示的菜单。然而，与普通的 peek and pop 不同，当您抬起手指时它不会消失。我如何复制这个？
问问题
2188 次
3 回答
2
我最接近复制它的是以下代码。它创建了音乐应用程序的虚拟副本。然后我添加了 PeekPop-3D-Touch 代表。
但是，在委托中，我向手势识别器添加了一个观察者，然后在偷看时取消手势，但在抬起手指时重新启用它。为了重新启用它，我做了异步操作，因为预览会在没有异步调度的情况下立即消失。我找不到解决它的方法..
现在，如果您在蓝色框外点击，它会像平常一样消失=]
http://i.imgur.com/073M2Ku.jpg http://i.imgur.com/XkwUBly.jpg
//
// ViewController.swift
// PeekPopExample
//
// Created by Brandon Anthony on 2016-07-16.
// Copyright © 2016 XIO. All rights reserved.
//
import UIKit
class MusicViewController: UITabBarController, UITabBarControllerDelegate {
var tableView: UITableView!
var collectionView: UICollectionView!
override func viewDidLoad() {
super.viewDidLoad()
self.initControllers()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func initControllers() {
let libraryController = LibraryViewController()
let forYouController = UIViewController()
let browseController = UIViewController()
let radioController = UIViewController()
let searchController = UIViewController()
libraryController.title = "Library"
libraryController.tabBarItem.image = nil
forYouController.title = "For You"
forYouController.tabBarItem.image = nil
browseController.title = "Browse"
browseController.tabBarItem.image = nil
radioController.title = "Radio"
radioController.tabBarItem.image = nil
searchController.title = "Search"
searchController.tabBarItem.image = nil
self.viewControllers = [libraryController, forYouController, browseController, radioController, searchController];
}
}
以及ForceTouch暂停的实现..
//
// LibraryViewController.swift
// PeekPopExample
//
// Created by Brandon Anthony on 2016-07-16.
// Copyright © 2016 XIO. All rights reserved.
//
import Foundation
import UIKit
//Views and Cells..
class AlbumView : UIView {
var albumCover: UIImageView!
var title: UILabel!
var artist: UILabel!
override init(frame: CGRect) {
super.init(frame: frame)
self.initControls()
self.setTheme()
self.doLayout()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func initControls() {
self.albumCover = UIImageView()
self.title = UILabel()
self.artist = UILabel()
}
func setTheme() {
self.albumCover.contentMode = .scaleAspectFit
self.albumCover.layer.cornerRadius = 5.0
self.albumCover.backgroundColor = UIColor.lightGray()
self.title.text = "Unknown"
self.title.font = UIFont.systemFont(ofSize: 12)
self.artist.text = "Unknown"
self.artist.textColor = UIColor.lightGray()
self.artist.font = UIFont.systemFont(ofSize: 12)
}
func doLayout() {
self.addSubview(self.albumCover)
self.addSubview(self.title)
self.addSubview(self.artist)
let views = ["albumCover": self.albumCover, "title": self.title, "artist": self.artist];
var constraints = Array<String>()
constraints.append("H:|-0-[albumCover]-0-|")
constraints.append("H:|-0-[title]-0-|")
constraints.append("H:|-0-[artist]-0-|")
constraints.append("V:|-0-[albumCover]-[title]-[artist]-0-|")
let aspectRatioConstraint = NSLayoutConstraint(item: self.albumCover, attribute: .width, relatedBy: .equal, toItem: self.albumCover, attribute: .height, multiplier: 1.0, constant: 0.0)
self.addConstraint(aspectRatioConstraint)
for constraint in constraints {
self.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: constraint, options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: views))
}
for view in self.subviews {
view.translatesAutoresizingMaskIntoConstraints = false
}
}
}
class AlbumCell : UITableViewCell {
var firstAlbumView: AlbumView!
var secondAlbumView: AlbumView!
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.initControls()
self.setTheme()
self.doLayout()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func initControls() {
self.firstAlbumView = AlbumView(frame: CGRect.zero)
self.secondAlbumView = AlbumView(frame: CGRect.zero)
}
func setTheme() {
}
func doLayout() {
self.contentView.addSubview(self.firstAlbumView)
self.contentView.addSubview(self.secondAlbumView)
let views: [String: AnyObject] = ["firstAlbumView": self.firstAlbumView, "secondAlbumView": self.secondAlbumView];
var constraints = Array<String>()
constraints.append("H:|-15-[firstAlbumView(==secondAlbumView)]-15-[secondAlbumView(==firstAlbumView)]-15-|")
constraints.append("V:|-15-[firstAlbumView]-15-|")
constraints.append("V:|-15-[secondAlbumView]-15-|")
for constraint in constraints {
self.contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: constraint, options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: views))
}
for view in self.contentView.subviews {
view.translatesAutoresizingMaskIntoConstraints = false
}
}
}
//Details..
class DetailSongViewController : UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = UIColor.blue()
}
/*override func previewActionItems() -> [UIPreviewActionItem] {
let regularAction = UIPreviewAction(title: "Regular", style: .default) { (action: UIPreviewAction, vc: UIViewController) -> Void in
}
let destructiveAction = UIPreviewAction(title: "Destructive", style: .destructive) { (action: UIPreviewAction, vc: UIViewController) -> Void in
}
let actionGroup = UIPreviewActionGroup(title: "Group...", style: .default, actions: [regularAction, destructiveAction])
return [actionGroup]
}*/
}
//Implementation..
extension LibraryViewController : UIViewControllerPreviewingDelegate {
func previewingContext(_ previewingContext: UIViewControllerPreviewing, viewControllerForLocation location: CGPoint) -> UIViewController? {
guard let indexPath = self.tableView.indexPathForRow(at: location) else {
return nil
}
guard let cell = self.tableView.cellForRow(at: indexPath) else {
return nil
}
previewingContext.previewingGestureRecognizerForFailureRelationship.addObserver(self, forKeyPath: "state", options: .new, context: nil)
let detailViewController = DetailSongViewController()
detailViewController.preferredContentSize = CGSize(width: 0.0, height: 300.0)
previewingContext.sourceRect = cell.frame
return detailViewController
}
func previewingContext(_ previewingContext: UIViewControllerPreviewing, commit viewControllerToCommit: UIViewController) {
//self.show(viewControllerToCommit, sender: self)
}
override func observeValue(forKeyPath keyPath: String?, of object: AnyObject?, change: [NSKeyValueChangeKey : AnyObject]?, context: UnsafeMutablePointer<Void>?) {
if let object = object {
if keyPath == "state" {
let newValue = change![NSKeyValueChangeKey.newKey]!.integerValue
let state = UIGestureRecognizerState(rawValue: newValue!)!
switch state {
case .began, .changed:
self.navigationItem.title = "Peeking"
(object as! UIGestureRecognizer).isEnabled = false
case .ended, .failed, .cancelled:
self.navigationItem.title = "Not committed"
object.removeObserver(self, forKeyPath: "state")
DispatchQueue.main.async(execute: {
(object as! UIGestureRecognizer).isEnabled = true
})
case .possible:
break
}
}
}
}
}
class LibraryViewController : UIViewController, UITableViewDelegate, UITableViewDataSource {
var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
self.initControls()
self.setTheme()
self.registerClasses()
self.registerPeekPopPreviews();
self.doLayout()
}
func initControls() {
self.tableView = UITableView(frame: CGRect.zero, style: .grouped)
}
func setTheme() {
self.edgesForExtendedLayout = UIRectEdge()
self.tableView.dataSource = self;
self.tableView.delegate = self;
}
func registerClasses() {
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Default")
self.tableView.register(AlbumCell.self, forCellReuseIdentifier: "AlbumCell")
}
func registerPeekPopPreviews() {
//if (self.traitCollection.forceTouchCapability == .available) {
self.registerForPreviewing(with: self, sourceView: self.tableView)
//}
}
func doLayout() {
self.view.addSubview(self.tableView)
let views: [String: AnyObject] = ["tableView": self.tableView];
var constraints = Array<String>()
constraints.append("H:|-0-[tableView]-0-|")
constraints.append("V:|-0-[tableView]-0-|")
for constraint in constraints {
self.view.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: constraint, options: NSLayoutFormatOptions(rawValue: 0), metrics: nil, views: views))
}
for view in self.view.subviews {
view.translatesAutoresizingMaskIntoConstraints = false
}
}
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return section == 0 ? 5 : 10
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return (indexPath as NSIndexPath).section == 0 ? 44.0 : 235.0
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return section == 0 ? 75.0 : 50.0
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 0.0001
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return section == 0 ? "Library" : "Recently Added"
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if (indexPath as NSIndexPath).section == 0 { //Library
let cell = tableView.dequeueReusableCell(withIdentifier: "Default", for: indexPath)
switch (indexPath as NSIndexPath).row {
case 0:
cell.accessoryType = .disclosureIndicator
cell.textLabel?.text = "Playlists"
case 1:
cell.accessoryType = .disclosureIndicator
cell.textLabel?.text = "Artists"
case 2:
cell.accessoryType = .disclosureIndicator
cell.textLabel?.text = "Albums"
case 3:
cell.accessoryType = .disclosureIndicator
cell.textLabel?.text = "Songs"
case 4:
cell.accessoryType = .disclosureIndicator
cell.textLabel?.text = "Downloads"
default:
break
}
}
if (indexPath as NSIndexPath).section == 1 { //Recently Added
let cell = tableView.dequeueReusableCell(withIdentifier: "AlbumCell", for: indexPath)
cell.selectionStyle = .none
return cell
}
return tableView.dequeueReusableCell(withIdentifier: "Default", for: indexPath)
}
}
于 2016-07-17T00:37:58.817 回答
1
这实际上可以使用UIPreviewInteraction API来完成。
https://developer.apple.com/documentation/uikit/uipreviewinteraction
它几乎类似于Peek 和 Pop API。
这里我们有 2 个阶段：Preview 和 Commit，对应后面 API 中的 Peek 和 Pop。我们有UIPreviewInteractionDelegate，它使我们可以访问这些阶段的过渡。
所以应该做的是，复制上面的 Apple Music Popup，
在didUpdatePreviewTransition期间手动显示模糊覆盖
构建上述菜单的 xib 并在didUpdateCommitTransition期间显示
- 您可以让视图在 commitTransition 阶段结束时停留在那里。
实际上，苹果已经以聊天应用程序的形式构建了一个演示。
从这里下载示例代码并进行测试。
于 2018-02-27T18:13:16.233 回答
0
我写了一些代码来复制，比如苹果音乐风格的 peek and pop。
像下面这样工作
解释
- TopView.xib、TopView.swift（可以自定义）
- PeekAndPopActionView.swift （查看单个操作，例如下载、分享..）
- PeekAndPopController.swift（现在，关闭视图）
- ForceTouchGestureRecognizer.swift（检测力度触摸）
用法
fileprivate let peekedViewController = PeekAndPopController()
@IBAction func presentAction(_ sender: Any) {
present(peekedViewController, animated: true)
}
let forceTouch = ForceTouchGestureRecognizer()
override func viewDidLoad() {
super.viewDidLoad()
forceTouch.addTarget(self, action: #selector(touchAction(_:)))
forceTouch.cancelsTouchesInView = false
view.addGestureRecognizer(forceTouch)
let download = PeekAndPopActionView(text: "Download", image: #imageLiteral(resourceName: "btnDownload"), handler: {
print("Download Action")
})
let playNext = PeekAndPopActionView(text: "Play Next", image: #imageLiteral(resourceName: "btnDownload"), handler: {
print("Play Next Action")
})
let playLast = PeekAndPopActionView(text: "Play Later", image: #imageLiteral(resourceName: "btnDownload"), handler: {
print("Play Last Action")
})
let share = PeekAndPopActionView(text: "Share", image: #imageLiteral(resourceName: "btnDownload"), handler: {
print("Share Action")
})
peekedViewController.addAction(download)
peekedViewController.addAction(playNext)
peekedViewController.addAction(playLast)
peekedViewController.addAction(share)
peekedViewController.topView = TopView().loadNib()
peekedViewController.topView?.handler = {
print("Play Play Play")
}
}
@objc func touchAction(_ gesture: ForceTouchGestureRecognizer) {
print(#function, gesture.touch?.location(in: view) ?? "")
present(peekedViewController, animated: true)
}
于 2018-09-27T05:53:28.907 回答