Skip to content

Share settings (nightscout url and remote settings) with QR code #452

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 3 commits into from
Oct 1, 2025
Merged

Share settings (nightscout url and remote settings) with QR code #452

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
e0ec5f6
Add sharing remote settings with QR code
codebymini Aug 12, 2025
d5c5f8f
Merge branch 'dev' into share-setting-with-qr
codebymini Aug 27, 2025
222c19d
Merge branch 'dev' into share-setting-with-qr
codebymini Sep 21, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 16 additions & 0 deletions LoopFollow.xcodeproj/project.pbxproj
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,10 @@
654134182E1DC09700BDBE08 /* OverridePresetsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 654134172E1DC09700BDBE08 /* OverridePresetsView.swift */; };
6541341A2E1DC27900BDBE08 /* OverridePresetData.swift in Sources */ = {isa = PBXBuildFile; fileRef = 654134192E1DC27900BDBE08 /* OverridePresetData.swift */; };
6541341C2E1DC28000BDBE08 /* DateExtensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6541341B2E1DC28000BDBE08 /* DateExtensions.swift */; };
656F8C102E49F36F0008DC1D /* QRCodeDisplayView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 656F8C0F2E49F36F0008DC1D /* QRCodeDisplayView.swift */; };
656F8C122E49F3780008DC1D /* QRCodeGenerator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 656F8C112E49F3780008DC1D /* QRCodeGenerator.swift */; };
656F8C142E49F3D20008DC1D /* RemoteCommandSettings.swift in Sources */ = {isa = PBXBuildFile; fileRef = 656F8C132E49F3D20008DC1D /* RemoteCommandSettings.swift */; };
65E153C32E4BB69100693A4F /* URLTokenValidationView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 65E153C22E4BB69100693A4F /* URLTokenValidationView.swift */; };
6584B1012E4A263900135D4D /* TOTPService.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6584B1002E4A263900135D4D /* TOTPService.swift */; };
DD0247592DB2E89600FCADF6 /* AlarmCondition.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD0247582DB2E89600FCADF6 /* AlarmCondition.swift */; };
DD0247712DB4337700FCADF6 /* BuildExpireCondition.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD02475B2DB2E8FB00FCADF6 /* BuildExpireCondition.swift */; };
Expand Down Expand Up @@ -398,6 +402,10 @@
654134172E1DC09700BDBE08 /* OverridePresetsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OverridePresetsView.swift; sourceTree = "<group>"; };
654134192E1DC27900BDBE08 /* OverridePresetData.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OverridePresetData.swift; sourceTree = "<group>"; };
6541341B2E1DC28000BDBE08 /* DateExtensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DateExtensions.swift; sourceTree = "<group>"; };
656F8C0F2E49F36F0008DC1D /* QRCodeDisplayView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QRCodeDisplayView.swift; sourceTree = "<group>"; };
656F8C112E49F3780008DC1D /* QRCodeGenerator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QRCodeGenerator.swift; sourceTree = "<group>"; };
656F8C132E49F3D20008DC1D /* RemoteCommandSettings.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RemoteCommandSettings.swift; sourceTree = "<group>"; };
65E153C22E4BB69100693A4F /* URLTokenValidationView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = URLTokenValidationView.swift; sourceTree = "<group>"; };
6584B1002E4A263900135D4D /* TOTPService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TOTPService.swift; sourceTree = "<group>"; };
A7D55B42A22051DAD69E89D0 /* Pods_LoopFollow.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_LoopFollow.framework; sourceTree = BUILT_PRODUCTS_DIR; };
DD0247582DB2E89600FCADF6 /* AlarmCondition.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AlarmCondition.swift; sourceTree = "<group>"; };
Expand Down Expand Up @@ -914,6 +922,8 @@
DD4878062C7B2E9E0048F05C /* Settings */ = {
isa = PBXGroup;
children = (
65E153C22E4BB69100693A4F /* URLTokenValidationView.swift */,
656F8C132E49F3D20008DC1D /* RemoteCommandSettings.swift */,
DD4878072C7B30BF0048F05C /* RemoteSettingsView.swift */,
DD4878092C7B30D40048F05C /* RemoteSettingsViewModel.swift */,
);
Expand Down Expand Up @@ -1218,6 +1228,7 @@
DDF6999C2C5AAA4C0058A8D9 /* Views */ = {
isa = PBXGroup;
children = (
656F8C0F2E49F36F0008DC1D /* QRCodeDisplayView.swift */,
DDE75D2C2DE71401007C1FC1 /* TogglableSecureInput.swift */,
DDE75D222DE5E505007C1FC1 /* Glyph.swift */,
DD8316492DE4C504004467AA /* SettingsStepperRow.swift */,
Expand Down Expand Up @@ -1486,6 +1497,7 @@
FCC688542489367300A0279D /* Helpers */ = {
isa = PBXGroup;
children = (
656F8C112E49F3780008DC1D /* QRCodeGenerator.swift */,
DD4A407D2E6AFEE6007B318B /* AuthService.swift */,
DD1D52B82E1EB5DC00432050 /* TabPosition.swift */,
DD83164B2DE4DB3A004467AA /* BinaryFloatingPoint+localized.swift */,
Expand Down Expand Up @@ -1877,10 +1889,12 @@
DDF6999B2C5AA32E0058A8D9 /* TempTargetPreset.swift in Sources */,
DD7F4C0F2DD51EC200D449E9 /* TempTargetStartCondition.swift in Sources */,
DDBD19962DFB44B0005C2D69 /* Alarm+byPriorityThenSpec.swift in Sources */,
656F8C102E49F36F0008DC1D /* QRCodeDisplayView.swift in Sources */,
DDC6CA3D2DD7C6090060EE25 /* TemporaryCondition.swift in Sources */,
DD9ACA0E2D340BFF00415D8A /* AlarmTask.swift in Sources */,
DDCF9A822D85FD15004DF4DD /* AlarmType.swift in Sources */,
DD7FFAFD2A72953000C3A304 /* EKEventStore+Extensions.swift in Sources */,
656F8C122E49F3780008DC1D /* QRCodeGenerator.swift in Sources */,
6541341A2E1DC27900BDBE08 /* OverridePresetData.swift in Sources */,
FCC6886724898F8000A0279D /* UserDefaultsValue.swift in Sources */,
DD7F4C092DD504A700D449E9 /* OverrideStartCondition.swift in Sources */,
Expand All @@ -1897,6 +1911,7 @@
DD7F4C072DD5042F00D449E9 /* OverrideStartAlarmEditor.swift in Sources */,
DDCC3A4B2DDBB5E4006F1C10 /* BatteryCondition.swift in Sources */,
DDDF6F492D479AF000884336 /* NoRemoteView.swift in Sources */,
656F8C142E49F3D20008DC1D /* RemoteCommandSettings.swift in Sources */,
DD12D4872E1705E6004E0112 /* AlarmsContainerView.swift in Sources */,
DD83164A2DE4C504004467AA /* SettingsStepperRow.swift in Sources */,
DD0650ED2DCE9371004D3B41 /* HighBgAlarmEditor.swift in Sources */,
Expand Down Expand Up @@ -2049,6 +2064,7 @@
DD0650EF2DCE96FF004D3B41 /* HighBGCondition.swift in Sources */,
DDC6CA472DD8D9010060EE25 /* PumpChangeAlarmEditor.swift in Sources */,
DD4878132C7B750D0048F05C /* TempTargetView.swift in Sources */,
65E153C32E4BB69100693A4F /* URLTokenValidationView.swift in Sources */,
DD0C0C682C48529400DBADDF /* Metric.swift in Sources */,
FCC6886D2489909D00A0279D /* AnyConvertible.swift in Sources */,
DDC6CA432DD8CED20060EE25 /* SensorAgeCondition.swift in Sources */,
Expand Down
95 changes: 95 additions & 0 deletions LoopFollow/Helpers/QRCodeGenerator.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,95 @@
// LoopFollow
// QRCodeGenerator.swift
// Created by codebymini.

import CoreImage
import UIKit

enum QRCodeGenerator {
/// Generates a QR code image from a string
/// - Parameters:
/// - string: The string to encode in the QR code
/// - size: The size of the generated image (default: 200x200)
/// - correctionLevel: The error correction level (default: .M)
/// - Returns: A UIImage containing the QR code, or nil if generation fails
static func generateQRCode(
from string: String,
size: CGSize = CGSize(width: 200, height: 200),
correctionLevel: String = "M"
) -> UIImage? {
// Create a CIFilter for QR code generation
guard let filter = CIFilter(name: "CIQRCodeGenerator") else {
return nil
}

// Set the input data (the string to encode)
let data = string.data(using: .utf8)
filter.setValue(data, forKey: "inputMessage")

// Set the error correction level
filter.setValue(correctionLevel, forKey: "inputCorrectionLevel")

// Get the output image
guard let outputImage = filter.outputImage else {
return nil
}

// Scale the image to the desired size
let scaleX = size.width / outputImage.extent.size.width
let scaleY = size.height / outputImage.extent.size.height
let scaledImage = outputImage.transformed(by: CGAffineTransform(scaleX: scaleX, y: scaleY))

// Convert CIImage to UIImage
let context = CIContext()
guard let cgImage = context.createCGImage(scaledImage, from: scaledImage.extent) else {
return nil
}

return UIImage(cgImage: cgImage)
}

/// Generates a QR code image with custom colors
/// - Parameters:
/// - string: The string to encode in the QR code
/// - size: The size of the generated image (default: 200x200)
/// - foregroundColor: The color of the QR code (default: black)
/// - backgroundColor: The background color (default: white)
/// - correctionLevel: The error correction level (default: .M)
/// - Returns: A UIImage containing the QR code, or nil if generation fails
static func generateQRCode(
from string: String,
size: CGSize = CGSize(width: 200, height: 200),
foregroundColor: UIColor = .black,
backgroundColor: UIColor = .white,
correctionLevel: String = "M"
) -> UIImage? {
// First generate the basic QR code
guard let qrCodeImage = generateQRCode(from: string, size: size, correctionLevel: correctionLevel) else {
return nil
}

// Create a new image context with the desired size
UIGraphicsBeginImageContextWithOptions(size, false, 0)
defer { UIGraphicsEndImageContext() }

guard let context = UIGraphicsGetCurrentContext() else {
return nil
}

// Fill the background
backgroundColor.setFill()
context.fill(CGRect(origin: .zero, size: size))

// Draw the QR code with the foreground color
context.setFillColor(foregroundColor.cgColor)
context.setBlendMode(.sourceIn)

// Create a mask from the original QR code
if let cgImage = qrCodeImage.cgImage {
let maskImage = UIImage(cgImage: cgImage)
maskImage.draw(in: CGRect(origin: .zero, size: size))
}

return UIGraphicsGetImageFromCurrentImageContext()
}
}
77 changes: 77 additions & 0 deletions LoopFollow/Helpers/Views/QRCodeDisplayView.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,77 @@
// LoopFollow
// QRCodeDisplayView.swift
// Created by codebymini.

import SwiftUI
import UIKit

struct QRCodeDisplayView: View {
let qrCodeString: String
let size: CGSize
let foregroundColor: UIColor
let backgroundColor: UIColor

@State private var qrCodeImage: UIImage?

init(
qrCodeString: String,
size: CGSize = CGSize(width: 250, height: 250),
foregroundColor: UIColor = .black,
backgroundColor: UIColor = .white
) {
self.qrCodeString = qrCodeString
self.size = size
self.foregroundColor = foregroundColor
self.backgroundColor = backgroundColor
}

var body: some View {
VStack(spacing: 16) {
if let qrCodeImage = qrCodeImage {
Image(uiImage: qrCodeImage)
.resizable()
.aspectRatio(contentMode: .fit)
.frame(width: size.width, height: size.height)
.cornerRadius(12)
.shadow(radius: 4)
} else {
RoundedRectangle(cornerRadius: 12)
.fill(Color.gray.opacity(0.3))
.frame(width: size.width, height: size.height)
.overlay(
ProgressView()
.scaleEffect(1.5)
)
}

Text("Scan this QR code with another LoopFollow app to import remote command settings")
.font(.caption)
.foregroundColor(.secondary)
.multilineTextAlignment(.center)
.padding(.horizontal, 20)
}
.onAppear {
generateQRCode()
}
}

private func generateQRCode() {
DispatchQueue.global(qos: .userInitiated).async {
let image = QRCodeGenerator.generateQRCode(
from: qrCodeString,
size: size,
foregroundColor: foregroundColor,
backgroundColor: backgroundColor
)

DispatchQueue.main.async {
self.qrCodeImage = image
}
}
}
}

#Preview {
QRCodeDisplayView(qrCodeString: "https://example.com/test")
.padding()
}
1 change: 1 addition & 0 deletions LoopFollow/Log/LogManager.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@ class LogManager {
case alarm = "Alarm"
case calendar = "Calendar"
case deviceStatus = "Device Status"
case remote = "Remote"
}

init() {
Expand Down
Loading