swift

问题 What is the correct way to alter a Request performing an asynchronous task before the Request happens? So any request Rn need to become transparently Tn then Rn. A little of background here : The Task is a 3rd party SDK that dispatch a Token I need to use as Header for the original request. My idea is to decorate the Rn, but in doing this I need to convert my Tn task into a Siesta Request I can chain then. So I wrapped the Asynchronous Task and chained to my original request. Thus any Rn will

问题 i want to hide certain html elements in wkwebview using swift 4, xcode 9. i know how to do it in android and have added the code below. i just need an equivalent code for ios in swift 4 for wkwebView. myWebView.setWebViewClient(new WebViewClient() { @Override public void onPageFinished(WebView view, String url) { myWebView.loadUrl("javascript:(function() { " + "document.getElementById('divHeader') [0].style.display='none'; " + "})()"); } }); myWebView.loadUrl(URL); 回答1: Use WKWebView import

问题 i want to hide certain html elements in wkwebview using swift 4, xcode 9. i know how to do it in android and have added the code below. i just need an equivalent code for ios in swift 4 for wkwebView. myWebView.setWebViewClient(new WebViewClient() { @Override public void onPageFinished(WebView view, String url) { myWebView.loadUrl("javascript:(function() { " + "document.getElementById('divHeader') [0].style.display='none'; " + "})()"); } }); myWebView.loadUrl(URL); 回答1: Use WKWebView import

问题 I have 3 pickers like this: the 1st one is the generalPicker, the 2nd and 3rd are the same. In the generalPicker, I have an array (menu): ["Length", "Volume", "Mass"] and every time I want to choose, for example Mass from the generalPicker, I want to get in the 2nd and 3rd pickers this array: ["Milligram", "Centigram", "Gram", "Kilogram", "Stone", "Pound", "Ounce"]. Or, if I chose in the generalPicker, let's say, Length, then I want to get in the 2nd and 3rd pickers: ["Millimeter",

问题 Thanks to this great article(http://machinethink.net/blog/coreml-custom-layers/), I understood how to write converting using coremltools and Lambda with Keras custom layer. But, I cannot understand on the situation, function with two parameters. #python def scaling(x, scale): return x * scale Keras layer is here. #python up = conv2d_bn(mixed, K.int_shape(x)[channel_axis], 1, activation=None, use_bias=True, name=name_fmt('Conv2d_1x1')) x = Lambda(scaling, # HERE !! output_shape=K.int_shape(up)

问题 Below is example code of MessageKit library. Currently, its behavior is that all image messages must be loaded completely before displaying to end user so it takes a lot of time to wait. What i want is to load image after all messages have been loaded. Look at 1/ you will see that the "kind" variable which will be a mediaItem Look at 2/ you will see that the mediaItem has "url" variable Look at 3/ you will see that the message is created with above mediaItem The question is how to get the url

问题 I'm carrying this on from this question, since the focus has changed. I am trying to send string data from a vapor server over a websocket. The client side is where the main question is. This code successfully receives the string, which is expected to be JSON (but not absolutely guaranteed -- out of scope). switch message { case .data(let data): print("data: \(data)") case .string(let str): // let data = str.message(using: .utf8) let jsonData = Data(str.utf8) print("string: \(jsonData)") do {

问题 I have a program, it is an editor for Twitter tweets, it's counting the text to make it less than 280 character as twitter restriction. I use for that utf8 property like this: var str = "℞" let r = str.utf8.count The result = 3 This symbol (℞) and more like it takes only 2 character in twitter counter but the result in this code gave me 3, so i can't give the user the exact character count! How can I get the correct count: 2 回答1: Counting characters Tweet length is measured by the number of

问题 I'm attempting to put a collection view within the navigation bar, as seen in iMessage group chats where all members have their initials in circles in the nav bar. I found an answer here on SO and I did my best to convert it to iOS10/Swift 3, but the collection view cells are not showing up in the nav bar correctly. Here's my code: import UIKit weak var collectionView: UICollectionView? class ChatController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource { override

问题 I'm attempting to put a collection view within the navigation bar, as seen in iMessage group chats where all members have their initials in circles in the nav bar. I found an answer here on SO and I did my best to convert it to iOS10/Swift 3, but the collection view cells are not showing up in the nav bar correctly. Here's my code: import UIKit weak var collectionView: UICollectionView? class ChatController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource { override