decode

How to decode a Gzip Http Response in Flutter?

倖福魔咒の 提交于 2021-01-23 01:59:06
问题 I am new to Flutter. I am making a Network Request and I am getting the correct response, but the data is Gzipped. I have decompressed the same in Swift, but with Flutter, I am unable to do that. Can anyone please help? Here's what I have tried: import 'dart:convert'; import 'package:http/http.dart'; import 'package:archive/archive.dart'; import 'package:flutter_app/Constants/constants.dart'; class ServiceHelper { static final sharedInstance = ServiceHelper(); Future<Response> sendRequest(

How does decoding in UTF-8 know the byte boundaries?

点点圈 提交于 2021-01-21 07:53:04
问题 I've been doing a bunch of reading on unicode encodings, especially with regards to Python. I think I have a pretty strong understanding of it now, but there's still one small detail I'm a little unsure about. How does the decoding know the byte boundaries? For example, say I have a unicode string with two unicode characters with byte representations of \xc6\xb4 and \xe2\x98\x82 , respectively. I then write this unicode string to a file, so the file now contains the bytes \xc6\xb4\xe2\x98\x82

How does decoding in UTF-8 know the byte boundaries?

六眼飞鱼酱① 提交于 2021-01-21 07:52:29
问题 I've been doing a bunch of reading on unicode encodings, especially with regards to Python. I think I have a pretty strong understanding of it now, but there's still one small detail I'm a little unsure about. How does the decoding know the byte boundaries? For example, say I have a unicode string with two unicode characters with byte representations of \xc6\xb4 and \xe2\x98\x82 , respectively. I then write this unicode string to a file, so the file now contains the bytes \xc6\xb4\xe2\x98\x82

Fastest way to save structs iOS / Swift

孤街浪徒 提交于 2021-01-20 07:13:36
问题 I have structs like struct RGBA: Codable { var r: UInt8 var g: UInt8 var b: UInt8 var a: UInt8 } I want save large amount of this structs (>1_000_000) Decode guard let history = try? JSONDecoder().decode(HistoryRGBA.self, from: data) else { return } Encode guard let jsonData = try? encoder.encode(dataForSave) else { return false } How can I improve encoding/decoding time and amount of RAM memory? 回答1: Considering that all your properties are UInt8 (bytes) you can make your struct conform to

Fastest way to save structs iOS / Swift

狂风中的少年 提交于 2021-01-20 07:13:09
问题 I have structs like struct RGBA: Codable { var r: UInt8 var g: UInt8 var b: UInt8 var a: UInt8 } I want save large amount of this structs (>1_000_000) Decode guard let history = try? JSONDecoder().decode(HistoryRGBA.self, from: data) else { return } Encode guard let jsonData = try? encoder.encode(dataForSave) else { return false } How can I improve encoding/decoding time and amount of RAM memory? 回答1: Considering that all your properties are UInt8 (bytes) you can make your struct conform to

Generate 5 length unique code from natural number

时光怂恿深爱的人放手 提交于 2021-01-06 04:02:29
问题 I need to generate a unique code with 5 lengths with the given number. In other words, I need to encode natural number to 5 length unique code I wanna give fixed-length rememberable code to the customer, and keep the sequential number in the database and encode or decode when needed. The given number can be in the range of 1 to 9999999. But the result always must be 5 lengths. for example 1 => a56er or 2 => c7gh4 Uniqueness is important I googled a lot and I can't find a solution. 回答1: The

Generate 5 length unique code from natural number

↘锁芯ラ 提交于 2021-01-06 04:01:07
问题 I need to generate a unique code with 5 lengths with the given number. In other words, I need to encode natural number to 5 length unique code I wanna give fixed-length rememberable code to the customer, and keep the sequential number in the database and encode or decode when needed. The given number can be in the range of 1 to 9999999. But the result always must be 5 lengths. for example 1 => a56er or 2 => c7gh4 Uniqueness is important I googled a lot and I can't find a solution. 回答1: The

Decoding i386 opcodes to instructions

六月ゝ 毕业季﹏ 提交于 2021-01-03 10:45:18
问题 I'm trying to Is there any good resource available to learn 'decoding' of i386 opcodes? Most of the websites talk about how to encode instructions, but I don't find anywhere something telling as to how to decode opcodes to instructions. I've looked at the source code of some disassemblers, but I want some documentation as to how to decode opcodes to instructions. Thanks and Regards, Hrishikesh Murali 回答1: Read the processor manuals, they have it described, though maybe not in complete details

Decoding i386 opcodes to instructions

不问归期 提交于 2021-01-03 10:37:46
问题 I'm trying to Is there any good resource available to learn 'decoding' of i386 opcodes? Most of the websites talk about how to encode instructions, but I don't find anywhere something telling as to how to decode opcodes to instructions. I've looked at the source code of some disassemblers, but I want some documentation as to how to decode opcodes to instructions. Thanks and Regards, Hrishikesh Murali 回答1: Read the processor manuals, they have it described, though maybe not in complete details

Decoding i386 opcodes to instructions

試著忘記壹切 提交于 2021-01-03 10:33:01
问题 I'm trying to Is there any good resource available to learn 'decoding' of i386 opcodes? Most of the websites talk about how to encode instructions, but I don't find anywhere something telling as to how to decode opcodes to instructions. I've looked at the source code of some disassemblers, but I want some documentation as to how to decode opcodes to instructions. Thanks and Regards, Hrishikesh Murali 回答1: Read the processor manuals, they have it described, though maybe not in complete details