stream

问题 Hey guys so I'm trying to read a stream from a bluetooth device continuously streaming integers like this: -11 121 123 1234 -11 I have everything working with some code I found online, but to do some of the processing the numbers need to be ints as opposed to Strings, parseInt is taking up too much CPU, and I tried using a buffered stream with no avail. Here is the current method: void beginListenForData() { final Handler handler = new Handler(); final byte delimiter = 10; //This is the ASCII

问题 I'm trying to map my JSONArray to a Array<String?> . I'm doing it like this: fun getTextResponse(responseJson: JSONObject): Array<String?>{ val resultData = responseJson.getJSONArray("data") .getJSONObject(0) .getJSONArray("result") return resultData.map{ it.getString("label") }.toTypedArray() } But it is not typed as a JSONObject , is there any way I can force type it to JSONObject ? 回答1: The problem is that resultData has a type of JSONArray , which is a JSON utility class that doesn't

问题 I'm trying to map my JSONArray to a Array<String?> . I'm doing it like this: fun getTextResponse(responseJson: JSONObject): Array<String?>{ val resultData = responseJson.getJSONArray("data") .getJSONObject(0) .getJSONArray("result") return resultData.map{ it.getString("label") }.toTypedArray() } But it is not typed as a JSONObject , is there any way I can force type it to JSONObject ? 回答1: The problem is that resultData has a type of JSONArray , which is a JSON utility class that doesn't

问题 I have a URL of online-radio and I'd like to play it. So, I've done it this way: reading stream and writing it to byte array and playing it with audioTrack class. Here's the code: private static async Task Play() { using (WebClient wcDownload = new WebClient()) { // Create a request to the file we are downloading WebRequest webRequest = (HttpWebRequest)WebRequest.Create("http://media.vmariel.ru:8000/puls"); // Set default authentication for retrieving the file webRequest.Credentials =

问题 I have around 96 gzip of JSON which is over 350 GB of JSON file after unzipping with following structure { "structe": {}, "beta": {}, "flow": { "1023": { "0101": { "-LEjllNyHqdHYGntO6vu": { "status": "1", "t": 1528736191996 }, "-LEjllcXKaVOQu3BDpHF": { "status": "1", "t": 1528736192996 } }, "0102": { "-LEjllNyHqdHYGntO6vu": { "status": "1", "t": 1528736191996 }, "-LEjllcXKaVOQu3BDpHF": { "status": "1", "t": 1528736192996 } } }, "1024": { "0103": { "-LEjllNyHqdHYGntO6vu": { "lat": 51

问题 I'm trying to understand Streams and wrote some code. Everything seems to work, the program exits with status code 0. But it doesn't print the 'loop done' and 'main done' strings. I can't figure out why. import 'dart:async'; Stream<int> countStream(int to) async* { for (int i = 1; i <= to; i++) { yield i; } } class Retry { StreamController<int> _outgoing; Retry(Stream<int> incoming) { _outgoing = StreamController<int>(); _outgoing.addStream(incoming); } Future<void> process() async { await

问题 I'm trying to understand Streams and wrote some code. Everything seems to work, the program exits with status code 0. But it doesn't print the 'loop done' and 'main done' strings. I can't figure out why. import 'dart:async'; Stream<int> countStream(int to) async* { for (int i = 1; i <= to; i++) { yield i; } } class Retry { StreamController<int> _outgoing; Retry(Stream<int> incoming) { _outgoing = StreamController<int>(); _outgoing.addStream(incoming); } Future<void> process() async { await

问题 I'm trying to understand Streams and wrote some code. Everything seems to work, the program exits with status code 0. But it doesn't print the 'loop done' and 'main done' strings. I can't figure out why. import 'dart:async'; Stream<int> countStream(int to) async* { for (int i = 1; i <= to; i++) { yield i; } } class Retry { StreamController<int> _outgoing; Retry(Stream<int> incoming) { _outgoing = StreamController<int>(); _outgoing.addStream(incoming); } Future<void> process() async { await

问题 I'm currently working on a Card DLL in which I would need the image files for each card as an embedded resource, the current project looks like this: Note: The card images (.png) are in the Resources folder. The code I've been trying & is pretty much the only code I can find, is this: Assembly _assembly; Stream _imageStream; private Image img; public Image Img { get { return img; } } public Kaart() : this(5, "Spades") { } public Kaart(int val, string s) { this.KaartWaarde = val; this.Figuur =

问题 I have this code: cout << std::setiosflags(std::ios::right); cout << setw(3) << 1 << setw(3) << 2 << '\n'; // Output two values cout << std::setiosflags(std::ios::left); cout << setw(3) << 1 << setw(3) << 2 << '\n'; // Output two values but the output doesnt come like i expected. instead of: 1 2 1 2 this comes out: 1 2 1 2 What is the problem? I set 'std::ios::left' but it makes no difference? 回答1: You have to clear the previous value in adjustfield before you can set a new one. Try this: