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Code Issues Packages Projects Releases Wiki Activity

Adds placeholder view to NewsViewController and BrowseViewController

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This commit is contained in:
Riley Testut
2019-09-19 15:18:21 -07:00
parent 73c44c5e29
commit 9ea584c1fb
4 changed files with 128 additions and 6 deletions
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57
AltStore/Browse/BrowseViewController.swift
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@@ -15,9 +15,16 @@ import Nuke
class BrowseViewController: UICollectionViewController
{
private lazy var dataSource = self.makeDataSource()
private lazy var placeholderView = RSTPlaceholderView(frame: .zero)
private let prototypeCell = BrowseCollectionViewCell.instantiate(with: BrowseCollectionViewCell.nib!)!
private var loadingState: LoadingState = .loading {
didSet {
self.update()
}
}
private var cachedItemSizes = [String: CGSize]()
override func viewDidLoad()
@@ -32,6 +39,8 @@ class BrowseViewController: UICollectionViewController
self.collectionView.prefetchDataSource = self.dataSource
self.registerForPreviewing(with: self, sourceView: self.collectionView)
self.update()
}
override func viewWillAppear(_ animated: Bool)
@@ -135,6 +144,8 @@ private extension BrowseViewController
}
}
dataSource.placeholderView = self.placeholderView
return dataSource
}
@@ -152,21 +163,61 @@ private extension BrowseViewController
func fetchSource()
{
self.loadingState = .loading
AppManager.shared.fetchSource() { (result) in
do
{
{
let source = try result.get()
try source.managedObjectContext?.save()
DispatchQueue.main.async {
self.loadingState = .finished(.success(()))
}
}
catch
{
DispatchQueue.main.async {
let toastView = ToastView(text: error.localizedDescription, detailText: nil)
toastView.show(in: self.navigationController?.view ?? self.view, duration: 2.0)
if self.dataSource.itemCount > 0
{
let toastView = ToastView(text: error.localizedDescription, detailText: nil)
toastView.show(in: self.navigationController?.view ?? self.view, duration: 2.0)
}
self.loadingState = .finished(.failure(error))
}
}
}
}
func update()
{
switch self.loadingState
{
case .loading:
self.placeholderView.textLabel.isHidden = true
self.placeholderView.detailTextLabel.isHidden = false
self.placeholderView.detailTextLabel.text = NSLocalizedString("Loading...", comment: "")
self.placeholderView.activityIndicatorView.startAnimating()
case .finished(.failure(let error)):
self.placeholderView.textLabel.isHidden = false
self.placeholderView.detailTextLabel.isHidden = false
self.placeholderView.textLabel.text = NSLocalizedString("Unable to Fetch Apps", comment: "")
self.placeholderView.detailTextLabel.text = error.localizedDescription
self.placeholderView.activityIndicatorView.stopAnimating()
case .finished(.success):
self.placeholderView.textLabel.isHidden = true
self.placeholderView.detailTextLabel.isHidden = true
self.placeholderView.activityIndicatorView.stopAnimating()
}
}
}
private extension BrowseViewController