yuhnag

import Foundation

extension String {
	/// UTF16位置を文字位置に
	func convertPosition(utf16pos: Int) -> Index? {
		// UTF16のIndexを取得
		let utf16view = self.utf16
		let utf16index = utf16view.index(utf16view.startIndex, offsetBy: utf16pos)

		return utf16index.samePosition(in: self)

yuhnag

class ViewController: UIViewController, GADInterstitialDelegate {

	var interstitial: GADInterstitial!

	...

	/// ビューの表示アニメーションを強制変更
	override func present(_ viewControllerToPresent: UIViewController, animated flag: Bool, completion: (() -> Void)? = nil) {

		viewControllerToPresent.modalTransitionStyle = .crossDissolve

yuhnag

import UIKit

extension UIImage {
    /// alphaチャネルだけ取得する
    /// fillColor: 塗りつぶす色
    /// invert: alphaを反転するか
    func getAlphaImage(fillColor: UIColor = UIColor.white, invert: Bool = false) -> UIImage? {
        UIGraphicsBeginImageContextWithOptions(size, false, 0)

        //	塗りつぶし

yuhnag

import WebKit

/// adding "console.log" support
extension WKWebView: WKScriptMessageHandler {

    /// enabling console.log
    public func enableConsoleLog() {

        //	set message handler
        configuration.userContentController.add(self, name: "logging")

yuhnag

    override func didSelectPost() {
        //	PDFのファイルタイプ
        let typeIdentifier = "com.adobe.pdf";

        //	データ取得
        if let attachment = getFirstAttachement(extensionContext: self.extensionContext, typeIdentifier: typeIdentifier) {
            attachment.loadFileRepresentation(forTypeIdentifier: typeIdentifier, completionHandler:
            {(url, error) in    //  データ取得完了コールバック
             
                if let url = url {