Koze’s gists

Koze / JapaneseFontProblem.swift

Last active May 8, 2020 22:24

Japanese font without Japanese character causes the clip at the bottom.

	import SwiftUI

	struct SmapleView: View {

	let font = Font.custom("HiraginoSans-W3", size: 50)
	let borderColor = Color(.systemBlue)

	var body: some View {
	VStack(spacing: 10) {
	Text("Copy")

Koze / CKRecord+KeyPath.swift

Last active March 15, 2020 12:29

	extension CKRecord {
	public subscript<Root, Value: CKRecordValueProtocol>(keyPath keyPath: WritableKeyPath<Root, Value>) -> Value? {
	get {
	let key = NSExpression(forKeyPath: keyPath).keyPath
	return self[key]
	}
	set {
	let key = NSExpression(forKeyPath: keyPath).keyPath
	self[key] = newValue
	}

Koze / CKRecord+DynamicMemberLookup.swift

Created March 15, 2020 12:05

Type-safe CKRecord with dynamicMemberLookup

	extension CKRecord {
	subscript<Root, Value: CKRecordValueProtocol>(dynamicMember keyPath: WritableKeyPath<Root, Value>) -> Value? {
	get {
	let key = NSExpression(forKeyPath: keyPath).keyPath
	return self[key]
	}
	set {
	let key = NSExpression(forKeyPath: keyPath).keyPath
	// Fatal error: Could not extract a String from KeyPath Swift.ReferenceWritableKeyPath
	self[key] = newValue

Koze / CKRecord+KeyPath.swift

Created March 15, 2020 09:14

Type-safe CKRecord extension by Objective-C keyPath.

	extension CKRecord {
	public subscript<Root, Value: CKRecordValueProtocol>(keyPath keyPath: WritableKeyPath<Root, Value>) -> Value? {
	get {
	let key = NSExpression(forKeyPath: keyPath).keyPath
	return self[key]
	}
	set {
	let key = NSExpression(forKeyPath: keyPath).keyPath
	self[key] = newValue
	}

Koze / CKRecord+RawRepresentable.swift

Last active March 15, 2020 09:13

A little type-safe CKRecord extension to prevent typo.

	extension CKRecord {
	subscript<T: RawRepresentable>(key: T) -> CKRecordValueProtocol? where T.RawValue == CKRecord.FieldKey {
	get {
	return self[key.rawValue]
	}
	set {
	self[key.rawValue] = newValue
	}
	}
	}

Koze / TableViewCell.swift

Last active July 27, 2021 13:46

Adding SwiftUI preview implementation to existing view class

	//
	// TableViewCell.swift
	// iOS12App
	//
	// Created by Kazuma Koze on 2020/03/05.
	// Copyright © 2020 Climb App. All rights reserved.
	//

	import UIKit
	import SwiftUI

Koze / TableViewCell.swift

Last active March 6, 2020 05:40

Accessible TableViewCell like system UITableViewCell

	//
	// TableViewCell.swift
	// iOS12App
	//
	// Created by Kazuma Koze on 2020/03/05.
	// Copyright © 2020 Climb App. All rights reserved.
	//

	import UIKit

Koze / TableViewCellPreview.swift

Last active March 5, 2020 19:24

Using SwiftUI preview with UIView

	//
	// TableViewCellPreview.swift
	// iOS12App
	//
	// Created by Kazuma Koze on 2020/03/05.
	// Copyright © 2020 Climb App. All rights reserved.
	//

	import SwiftUI

Koze / AVSpeechSynthesisVoice+iOS13Workaround.swift

Created October 27, 2019 17:46

Workaround for that AVSpeechSynthesisVoice currentLanguageCode returns application language.

	extension AVSpeechSynthesisVoice {

	class func currentLanguageCodeWorkaround() -> String {
	if #available(iOS 13, *) {
	for preferredLanguage in Locale.preferredLanguages {
	let locale = Locale(identifier: preferredLanguage)

	if let languageCode = locale.languageCode {
	var voiceLanguage = languageCode
	if let regionCode = locale.regionCode {

Koze / AVSpeechSynthesisVoice+iOS13Workaround.swift

Last active October 27, 2019 17:47

Workaround for that AVSpeechSynthesisVoice currentLanguageCode returns application language.

	extension AVSpeechSynthesisVoice {

	private static let availableLanguages: Set<String> = Set(AVSpeechSynthesisVoice.speechVoices().map{ $0.language })

	class func currentLanguageCodeWorkaround() -> String {
	if #available(iOS 13, *) {
	if let preferredLanguage = Locale.preferredLanguages.first {
	let locale = Locale(identifier: preferredLanguage)

	if let languageCode = locale.languageCode,

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