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Enable resumption of scanning.

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This commit is contained in:
Matthew Chen 2021-07-30 14:18:54 -03:00
parent 2711169040
commit 191b95edbe
1 changed files with 6 additions and 3 deletions
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9
Signal/src/ViewControllers/AppSettings/Linked Devices/ScanQRCodeViewController.swift
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@ -86,7 +86,7 @@ class QRCodeScanViewController: OWSViewController {
private var scanner: QRCodeScanner?
private let isCompleteFlag = AtomicBool(false)
private let canDeliverResultsFlag = AtomicBool(false)
@objc
public required init(appearance: Appearance) {
@ -201,6 +201,9 @@ class QRCodeScanViewController: OWSViewController {
return
}
let couldEnable = canDeliverResultsFlag.tryToSetFlag()
owsAssertDebug(couldEnable)
view.removeAllSubviews()
let scanner = QRCodeScanner(sampleBufferDelegate: self)
@ -281,7 +284,7 @@ class QRCodeScanViewController: OWSViewController {
}()
private func processClassification(_ request: VNRequest) {
guard !isCompleteFlag.get() else {
guard !canDeliverResultsFlag.get() else {
// Already complete.
return
}
@ -359,7 +362,7 @@ class QRCodeScanViewController: OWSViewController {
qrCodeString: qrCode.qrCodeString)
switch outcome {
case .stopScanning:
guard self.isCompleteFlag.tryToSetFlag() else {
guard self.canDeliverResultsFlag.tryToSetFlag() else {
// Already complete.
return
}