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// |
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// CBManagerState.swift |
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// USB Meter |
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// |
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// Created by Bogdan Timofte on 02/03/2020. |
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// Copyright © 2020 Bogdan Timofte. All rights reserved. |
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// |
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//import Foundation |
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import CoreBluetooth |
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import SwiftUI |
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//Manager States |
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//.poweredOff A state that indicates Bluetooth is currently powered off. |
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//.poweredOn A state that indicates Bluetooth is currently powered on and available to use. |
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//.resetting A state that indicates the connection with the system service was momentarily lost. |
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//.unauthorized A state that indicates the application isn’t authorized to use the Bluetooth low energy role. |
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//.unknown The manager’s state is unknown. |
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//.unsupported A state that indicates this device doesn’t support the Bluetooth low energy central or client role. |
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extension CBManagerState {
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var description: String {
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switch self {
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case .poweredOff: |
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return "CBManagerState.poweredOff" |
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case .poweredOn: |
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return "CBManagerState.poweredOn" |
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case .resetting: |
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return "CBManagerState.resetting" |
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case .unauthorized: |
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return "CBManagerState.unauthorized" |
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case .unknown: |
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return "CBManagerState.unknown" |
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case .unsupported: |
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return "CBManagerState.unsupported" |
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default: |
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return "CBManagerState.other" |
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} |
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} |
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var color: Color {
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switch self {
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case .poweredOff: |
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return Color.red |
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case .poweredOn: |
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return Color.blue |
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case .resetting: |
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return Color.green |
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case .unauthorized: |
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return Color.orange |
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case .unknown: |
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return Color.secondary |
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case .unsupported: |
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return Color.gray |
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default: |
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return Color.yellow |
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} |
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} |
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var helpView: AnyView {
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switch self {
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case .poweredOff: |
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return AnyView(poweredOffHelperView()) |
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case .poweredOn: |
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return AnyView(poweredOnHelperView()) |
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case .resetting: |
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return AnyView(resettingHelperView()) |
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case .unauthorized: |
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return AnyView(unauthorizedHelperView()) |
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case .unknown: |
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return AnyView(unknownHelperView()) |
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case .unsupported: |
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return AnyView(unsupportedHelperView()) |
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default: |
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return AnyView(defaultHelperView()) |
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} |
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} |
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private struct poweredOffHelperView: View {
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var body: some View {
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Text("Bluetooth is turned off on this device. Tou can turn it on in Settings->Bluetooth")
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} |
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} |
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private struct poweredOnHelperView: View {
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var body: some View {
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Text("Bluetooth is up an running")
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} |
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} |
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private struct resettingHelperView: View {
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var body: some View {
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VStack {
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Text("Bluetooth is resetting")
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Text("Maybe wait for a while...")
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} |
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} |
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} |
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private struct unauthorizedHelperView: View {
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var body: some View {
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HStack {
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Text("This application does not have permission to access Bluetooth. You can give it in ")
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Button(action: { UIApplication.shared.open(URL(string: UIApplication.openSettingsURLString)!, options: [:], completionHandler: nil) }) {
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Text("Settings")
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} |
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} |
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} |
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} |
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private struct unknownHelperView: View {
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var body: some View {
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VStack {
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Text("Bluetooth state is unknown!")
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Text("There is no help available for this situation.")
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} |
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} |
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} |
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private struct unsupportedHelperView: View {
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var body: some View {
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VStack {
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Text("Your device does not have required capabilities to establish Bluetooth connections with USB Meters")
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Text("There is no help available for this situation.")
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} |
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} |
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} |
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private struct defaultHelperView: View {
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var body: some View {
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VStack {
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Text("Unknown Bluetooth state.")
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Text("You may contact develloper.")
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} |
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} |
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} |
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} |