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Tell iOS to wait while we are processing to allow us to try to finish

This commit is contained in:
Maurice Parker 2019-10-31 19:20:52 -05:00
parent 0c32e8de14
commit ebed17ed2f
1 changed files with 65 additions and 21 deletions
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86
iOS/AppDelegate.swift
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@ -18,6 +18,7 @@ var appDelegate: AppDelegate!
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate, UnreadCountProvider {
private var waitBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
private var syncBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
var syncTimer: ArticleStatusSyncTimer?
@ -130,28 +131,9 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
func prepareAccountsForBackground() {
syncTimer?.invalidate()
// Schedule background app refresh
scheduleBackgroundFeedRefresh()
// Sync article status
let completeProcessing = { [unowned self] in
UIApplication.shared.endBackgroundTask(self.syncBackgroundUpdateTask)
self.syncBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
}
DispatchQueue.global(qos: .background).async {
self.syncBackgroundUpdateTask = UIApplication.shared.beginBackgroundTask {
completeProcessing()
os_log("Accounts sync processing terminated for running too long.", log: self.log, type: .info)
}
DispatchQueue.main.async {
AccountManager.shared.syncArticleStatusAll() {
completeProcessing()
}
}
}
waitForProgressToFinish()
syncArticleStatus()
}
func prepareAccountsForForeground() {
@ -256,6 +238,68 @@ private extension AppDelegate {
}
// MARK: Go To Background
private extension AppDelegate {
func waitForProgressToFinish() {
let completeProcessing = { [unowned self] in
AccountManager.shared.saveAll()
UIApplication.shared.endBackgroundTask(self.waitBackgroundUpdateTask)
self.waitBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
}
self.waitBackgroundUpdateTask = UIApplication.shared.beginBackgroundTask {
completeProcessing()
os_log("Accounts wait for progress terminated for running too long.", log: self.log, type: .info)
}
DispatchQueue.main.async { [weak self] in
self?.waitToComplete() {
completeProcessing()
}
}
}
func waitToComplete(completion: @escaping () -> Void) {
guard UIApplication.shared.applicationState != .active else {
os_log("App came back to forground, no longer waiting.", log: self.log, type: .info)
completion()
return
}
if AccountManager.shared.refreshInProgress {
os_log("Waiting for refresh progress to finish...", log: self.log, type: .info)
DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in
self?.waitToComplete() {
completion()
}
}
} else {
os_log("Refresh progress complete.", log: self.log, type: .info)
completion()
}
}
func syncArticleStatus() {
let completeProcessing = { [unowned self] in
UIApplication.shared.endBackgroundTask(self.syncBackgroundUpdateTask)
self.syncBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
}
self.syncBackgroundUpdateTask = UIApplication.shared.beginBackgroundTask {
completeProcessing()
os_log("Accounts sync processing terminated for running too long.", log: self.log, type: .info)
}
DispatchQueue.main.async {
AccountManager.shared.syncArticleStatusAll() {
completeProcessing()
}
}
}
}
// MARK: Background Tasks
private extension AppDelegate {