I get this error even though everything is turned on, how can I solve it?
It works on IOS but I get this error on VisionOS
CoreData: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _recoverFromPartialError:forStore:inMonitor:]_block_invoke(2726): <NSCloudKitMirroringDelegate: 0x600003b0c700>: Found unknown error as part of a partial failure: <CKError 0x600000cce460: "Permission Failure" (10/2007); server message = "Invalid bundle ID for container"; op = 7FE8CD52A7B2E8FC; uuid = D8D1F2C9-2C01-45B2-BECC-270CA5520D55; container ID = "iCloud.Multitools">
let previewContainer:ModelContainer = {
do {
let config = ModelConfiguration(cloudKitDatabase: .private("iCloud.Multitools"))
let container = try ModelContainer(for: NoteModel.self, configurations: config)
return container
}
catch {
fatalError("Error to create container")
}
}()
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I want to make icloud backup using SwiftData in VisionOS and I need to use SwiftData first but I get the following error even though I do the following steps
I followed the steps below
I created a Model
import Foundation
import SwiftData
@Model
class NoteModel {
@Attribute(.unique) var id: UUID
var date:Date
var title:String
var text:String
init(id: UUID = UUID(), date: Date, title: String, text: String) {
self.id = id
self.date = date
self.title = title
self.text = text
}
}
I added modelContainer
WindowGroup(content: {
NoteView()
})
.modelContainer(for: [NoteModel.self])
And I'm making inserts to test
import SwiftUI
import SwiftData
struct NoteView: View {
@Environment(\.modelContext) private var context
var body: some View {
Button(action: { // new Note
let note = NoteModel(date: Date(), title: "New Note", text: "")
context.insert(note)
}, label: {
Image(systemName: "note.text.badge.plus")
.font(.system(size: 24))
.frame(width: 30, height: 30)
.padding(12)
.background(
RoundedRectangle(cornerRadius: 50)
.foregroundStyle(.black.opacity(0.2))
)
})
.buttonStyle(.plain)
.hoverEffectDisabled(true)
}
}
#Preview {
NoteView().modelContainer(for: [NoteModel.self])
}
Is het mogelijk om wifi en bluetooth in Swift in en uit te schakelen, hoe kan ik dat doen, er zijn altijd dingen over verbinding maken met het wifi-netwerk
Is it possible to read the battery levels of my other devices from swift uizer like widgets? can you help?
First of all, I tried MobileVLCKit but there is too much delay
Then I wrote a UDPManager class and I am writing my codes below. I would be very happy if anyone has information and wants to direct me.
Broadcast code
ffmpeg -f avfoundation -video_size 1280x720 -framerate 30 -i "0" -c:v libx264 -preset medium -tune zerolatency -f mpegts "udp://127.0.0.1:6000?pkt_size=1316"
Live View Code (almost 0 delay)
ffplay -fflags nobuffer -flags low_delay -probesize 32 -analyzeduration 1 -strict experimental -framedrop -f mpegts -vf setpts=0 udp://127.0.0.1:6000
OR
mpv udp://127.0.0.1:6000 --no-cache --untimed --no-demuxer-thread --vd-lavc-threads=1
UDPManager
import Foundation
import AVFoundation
import CoreMedia
import VideoDecoder
import SwiftUI
import Network
import Combine
import CocoaAsyncSocket
import VideoToolbox
class UDPManager: NSObject, ObservableObject, GCDAsyncUdpSocketDelegate {
private let host: String
private let port: UInt16
private var socket: GCDAsyncUdpSocket?
@Published var videoOutput: CMSampleBuffer?
init(host: String, port: UInt16) {
self.host = host
self.port = port
}
func connectUDP() {
do {
socket = GCDAsyncUdpSocket(delegate: self, delegateQueue: .global())
//try socket?.connect(toHost: host, onPort: port)
try socket?.bind(toPort: port)
try socket?.enableBroadcast(true)
try socket?.enableReusePort(true)
try socket?.beginReceiving()
} catch {
print("UDP soketi oluşturma hatası: \(error)")
}
}
func closeUDP() {
socket?.close()
}
func udpSocket(_ sock: GCDAsyncUdpSocket, didConnectToAddress address: Data) {
print("UDP Bağlandı.")
}
func udpSocket(_ sock: GCDAsyncUdpSocket, didNotConnect error: Error?) {
print("UDP soketi bağlantı hatası: \(error?.localizedDescription ?? "Bilinmeyen hata")")
}
func udpSocket(_ sock: GCDAsyncUdpSocket, didReceive data: Data, fromAddress address: Data, withFilterContext filterContext: Any?) {
if !data.isEmpty {
DispatchQueue.main.async {
self.videoOutput = self.createSampleBuffer(from: data)
}
}
}
func createSampleBuffer(from data: Data) -> CMSampleBuffer? {
var blockBuffer: CMBlockBuffer?
var status = CMBlockBufferCreateWithMemoryBlock(
allocator: kCFAllocatorDefault,
memoryBlock: UnsafeMutableRawPointer(mutating: (data as NSData).bytes),
blockLength: data.count,
blockAllocator: kCFAllocatorNull,
customBlockSource: nil,
offsetToData: 0,
dataLength: data.count,
flags: 0,
blockBufferOut: &blockBuffer)
if status != noErr {
return nil
}
var sampleBuffer: CMSampleBuffer?
let sampleSizeArray = [data.count]
status = CMSampleBufferCreateReady(
allocator: kCFAllocatorDefault,
dataBuffer: blockBuffer,
formatDescription: nil,
sampleCount: 1,
sampleTimingEntryCount: 0,
sampleTimingArray: nil,
sampleSizeEntryCount: 1,
sampleSizeArray: sampleSizeArray,
sampleBufferOut: &sampleBuffer)
if status != noErr {
return nil
}
return sampleBuffer
}
}
I didn't know how to convert the data object to video, so I searched and found this code and wanted to try it
func createSampleBuffer(from data: Data) -> CMSampleBuffer? {
var blockBuffer: CMBlockBuffer?
var status = CMBlockBufferCreateWithMemoryBlock(
allocator: kCFAllocatorDefault,
memoryBlock: UnsafeMutableRawPointer(mutating: (data as NSData).bytes),
blockLength: data.count,
blockAllocator: kCFAllocatorNull,
customBlockSource: nil,
offsetToData: 0,
dataLength: data.count,
flags: 0,
blockBufferOut: &blockBuffer)
if status != noErr {
return nil
}
var sampleBuffer: CMSampleBuffer?
let sampleSizeArray = [data.count]
status = CMSampleBufferCreateReady(
allocator: kCFAllocatorDefault,
dataBuffer: blockBuffer,
formatDescription: nil,
sampleCount: 1,
sampleTimingEntryCount: 0,
sampleTimingArray: nil,
sampleSizeEntryCount: 1,
sampleSizeArray: sampleSizeArray,
sampleBufferOut: &sampleBuffer)
if status != noErr {
return nil
}
return sampleBuffer
}
And I tried to make CMSampleBuffer a player but it just shows a white screen and doesn't work
struct SampleBufferPlayerView: UIViewRepresentable {
typealias UIViewType = UIView
var sampleBuffer: CMSampleBuffer
func makeUIView(context: Context) -> UIView {
let view = UIView(frame: .zero)
let displayLayer = AVSampleBufferDisplayLayer()
displayLayer.videoGravity = .resizeAspectFill
view.layer.addSublayer(displayLayer)
context.coordinator.displayLayer = displayLayer
return view
}
func updateUIView(_ uiView: UIView, context: Context) {
context.coordinator.sampleBuffer = sampleBuffer
context.coordinator.updateSampleBuffer()
}
func makeCoordinator() -> Coordinator {
Coordinator()
}
class Coordinator {
var displayLayer: AVSampleBufferDisplayLayer?
var sampleBuffer: CMSampleBuffer?
func updateSampleBuffer() {
guard let displayLayer = displayLayer, let sampleBuffer = sampleBuffer else { return }
if displayLayer.isReadyForMoreMediaData {
displayLayer.enqueue(sampleBuffer)
} else {
displayLayer.requestMediaDataWhenReady(on: .main) {
if displayLayer.isReadyForMoreMediaData {
displayLayer.enqueue(sampleBuffer)
print("isReadyForMoreMediaData")
}
}
}
}
}
}
And I tried to use it but I couldn't figure it out, can anyone help me?
struct ContentView: View {
// udp://@127.0.0.1:6000
@ObservedObject var udpManager = UDPManager(host: "127.0.0.1", port: 6000)
var body: some View {
VStack {
if let buffer = udpManager.videoOutput{
SampleBufferDisplayLayerView(sampleBuffer: buffer)
.frame(width: 300, height: 200)
}
}
.onAppear(perform: {
udpManager.connectUDP()
})
}
}