362 lines
13 KiB
Swift
362 lines
13 KiB
Swift
import AVFoundation
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import Photos
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import SwiftUI
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struct AttachmentMediaPickerView: View {
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@State private var isCameraAccessGranted = AVCaptureDevice.authorizationStatus(for: .video) == .authorized
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@State private var isGalleryAccessGranted = PHPhotoLibrary.authorizationStatus() == .authorized
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@State private var images = [UIImage]()
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let gridSize = UIScreen.main.bounds.width / 3
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var body: some View {
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let columns = Array(repeating: GridItem(.flexible(), spacing: 0), count: 3)
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ScrollView(showsIndicators: false) {
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LazyVGrid(columns: columns, spacing: 0) {
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// For camera
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if isCameraAccessGranted {
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ZStack {
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CameraView()
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.aspectRatio(1, contentMode: .fit)
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.frame(maxWidth: .infinity)
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Image(systemName: "camera")
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.resizable()
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.aspectRatio(contentMode: .fit)
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.frame(width: 40, height: 40)
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.foregroundColor(.white)
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.padding(8)
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.background(Color.black.opacity(0.5))
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.clipShape(Circle())
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.padding(8)
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}
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} else {
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Button {
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openAppSettings()
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} label: {
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ZStack {
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Rectangle()
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.fill(Color.Main.backgroundLight)
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.overlay {
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VStack {
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Image(systemName: "camera")
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.foregroundColor(.Material.tortoiseLight300)
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.font(.system(size: 30))
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Text("Allow camera access")
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.foregroundColor(.Main.black)
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.font(.body3)
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}
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}
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.frame(height: 100)
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}
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}
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}
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// For pictures
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if isGalleryAccessGranted {
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ForEach(images.indices, id: \.self) { index in
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Image(uiImage: images[index])
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.resizable()
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.aspectRatio(1, contentMode: .fit)
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.frame(maxWidth: .infinity)
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.clipped()
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}
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} else {
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Button {
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openAppSettings()
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} label: {
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ZStack {
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Rectangle()
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.fill(Color.Main.backgroundLight)
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.overlay {
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VStack {
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Image(systemName: "photo")
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.foregroundColor(.Material.tortoiseLight300)
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.font(.system(size: 30))
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Text("Allow gallery access")
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.foregroundColor(.Main.black)
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.font(.body3)
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}
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}
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.frame(height: 100)
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}
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}
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}
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}
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}
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.onAppear {
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checkCameraAccess()
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checkGalleryAccess()
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}
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}
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private func checkCameraAccess() {
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let status = AVCaptureDevice.authorizationStatus(for: .video)
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switch status {
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case .authorized:
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isCameraAccessGranted = true
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case .notDetermined:
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AVCaptureDevice.requestAccess(for: .video) { granted in
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DispatchQueue.main.async {
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self.isCameraAccessGranted = granted
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}
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}
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case .denied, .restricted:
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isCameraAccessGranted = false
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@unknown default:
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isCameraAccessGranted = false
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}
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}
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private func checkGalleryAccess() {
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let status = PHPhotoLibrary.authorizationStatus()
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switch status {
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case .authorized, .limited:
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isGalleryAccessGranted = true
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fetchImages()
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case .notDetermined:
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PHPhotoLibrary.requestAuthorization { status in
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DispatchQueue.main.async {
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self.isGalleryAccessGranted = status == .authorized
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if self.isGalleryAccessGranted {
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self.fetchImages()
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}
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}
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}
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case .denied, .restricted:
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isGalleryAccessGranted = false
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@unknown default:
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isGalleryAccessGranted = false
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}
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}
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private func fetchImages() {
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let fetchOptions = PHFetchOptions()
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fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: false)]
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let assets = PHAsset.fetchAssets(with: .image, options: fetchOptions)
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let manager = PHImageManager.default()
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let option = PHImageRequestOptions()
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option.isSynchronous = true
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assets.enumerateObjects { asset, _, _ in
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manager.requestImage(
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for: asset,
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targetSize: PHImageManagerMaximumSize,
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contentMode: .aspectFill,
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options: option
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) { image, _ in
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if let image = image {
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DispatchQueue.main.async {
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if let img = scaleAndCropImage(image, toSize: CGSize(width: gridSize, height: gridSize)) {
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self.images.append(img)
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}
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}
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}
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}
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}
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}
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func openAppSettings() {
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if
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let appSettingsUrl = URL(string: UIApplication.openSettingsURLString),
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UIApplication.shared.canOpenURL(appSettingsUrl)
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{
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UIApplication.shared.open(appSettingsUrl, completionHandler: nil)
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}
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}
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func scaleAndCropImage(_ image: UIImage, toSize size: CGSize) -> UIImage? {
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let imageView = UIImageView(frame: CGRect(origin: .zero, size: size))
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imageView.contentMode = .scaleAspectFill
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imageView.image = image
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UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
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guard let context = UIGraphicsGetCurrentContext() else { return nil }
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imageView.layer.render(in: context)
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let result = UIGraphicsGetImageFromCurrentImageContext()
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UIGraphicsEndImageContext()
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return result
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}
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}
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class CameraUIView: UIView {
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var previewLayer: AVCaptureVideoPreviewLayer?
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override func layoutSubviews() {
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super.layoutSubviews()
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previewLayer?.frame = bounds
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}
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}
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struct CameraView: UIViewRepresentable {
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func makeUIView(context _: Context) -> CameraUIView {
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let view = CameraUIView()
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let captureSession = AVCaptureSession()
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guard let captureDevice = AVCaptureDevice.default(for: .video) else { return view }
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guard let input = try? AVCaptureDeviceInput(device: captureDevice) else { return view }
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captureSession.addInput(input)
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let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
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previewLayer.videoGravity = .resizeAspectFill
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view.layer.addSublayer(previewLayer)
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view.previewLayer = previewLayer
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captureSession.startRunning()
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return view
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}
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func updateUIView(_ uiView: CameraUIView, context _: Context) {
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// Update the previewLayer frame when the view updates
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uiView.previewLayer?.frame = uiView.bounds
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}
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}
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// struct AttachmentMediaPickerView: View {
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// @StateObject private var mediaManager = MediaManager()
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//
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// var body: some View {
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// ScrollView {
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// LazyVGrid(columns: Array(repeating: .init(.flexible()), count: 3)) {
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// ForEach(elements) { element in
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// element
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// }
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// }
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// .padding(.horizontal, 8)
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// }
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// .padding(.vertical, 8)
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// }
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//
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// private var elements: [GridElement] {
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// print("Creating elements")
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// var result: [GridElement] = []
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//
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// // camera
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// if let feed = mediaManager.cameraFeed, mediaManager.cameraAccessLevel == .authorized {
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// result.append(GridElement(id: UUID(), type: .cameraFeed, content: feed) {
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// print("Go to capture???")
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// })
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// print("Added camera feed")
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// } else if mediaManager.cameraAccessLevel == .restricted {
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// result.append(GridElement(id: UUID(), type: .cameraRestricted, content: nil) {
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// print("Show alert")
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// })
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// print("Added camera restricted")
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// } else {
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// result.append(GridElement(id: UUID(), type: .cameraAskButton, content: nil) {
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// mediaManager.openAppSettings()
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// })
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// print("Added camera ask button")
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// }
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//
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// // photos
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// // if mediaManager.galleryAccessLevel == .restricted {
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// // result.append(GridElement(id: UUID(), type: .photoRestricted, content: nil))
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// // } else {
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// // for photo in mediaManager.photos {
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// // result.append(GridElement(id: UUID(), type: .photo, content: photo))
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// // }
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// // if mediaManager.galleryAccessLevel != .authorized {
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// // result.append(GridElement(id: UUID(), type: .photoAskButton, content: nil))
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// // }
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// // }
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//
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// return result
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// }
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// }
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//
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// private enum GridElementType {
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// case cameraFeed
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// case cameraAskButton
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// case cameraRestricted
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// case photo
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// case photoAskButton
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// case photoRestricted
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// }
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//
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// private struct GridElement: View, Identifiable {
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// let id: UUID
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// let type: GridElementType
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// let content: UIImage?
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// let action: () -> Void
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//
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// var body: some View {
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// switch type {
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// case .cameraFeed:
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// image
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// .resizable()
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// .aspectRatio(contentMode: .fill)
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// .frame(width: 100, height: 100)
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// .clipped()
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//
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// case .cameraAskButton:
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// Button {
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// action()
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// } label: {
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// RoundedRectangle(cornerRadius: 5)
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// .stroke(Color.Main.backgroundDark, lineWidth: 2)
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// .overlay {
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// Image(systemName: "camera")
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// .foregroundColor(.Material.tortoiseLight300)
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// .font(.system(size: 40))
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// }
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// .frame(height: 100)
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// // .resizable()
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// // .aspectRatio(contentMode: .fill)
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// // .frame(width: 100, height: 100)
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// // .clipped()
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// }
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//
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// case .photo:
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// image
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// .resizable()
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// .aspectRatio(contentMode: .fill)
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// .frame(width: 100, height: 100)
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// .clipped()
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//
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// case .photoAskButton:
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// Button {
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// action()
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// } label: {
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// Image(systemName: "photo.badge.plus")
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// .resizable()
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// .aspectRatio(contentMode: .fill)
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// .frame(width: 100, height: 100)
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// .clipped()
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// }
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//
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// case .photoRestricted, .cameraRestricted:
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// Button {
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// action()
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// } label: {
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// Image(systemName: "cross")
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// .resizable()
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// .aspectRatio(contentMode: .fill)
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// .frame(width: 100, height: 100)
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// .clipped()
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// }
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// }
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// }
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//
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// private var image: Image {
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// guard let content = content else {
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// return Image(systemName: "questionmark.square.dashed")
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// }
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// return Image(uiImage: content)
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// }
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// }
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//
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// struct AttachmentMediaPickerView_Previews: PreviewProvider {
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// static var previews: some View {
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// AttachmentMediaPickerView()
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// }
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// }
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