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如何在KOTLIN Android中从JSON中获取数据

I want to fetch some data from json(see in the image the green arrow) The problem is that the android studio doesn't let me get the data i want.It stops until a step before(i think). And

更新作曲文件

I'm trying to update a .bna file, however, I'm facing this issue when I run the following command : composer network upgrade -c PeerAdmin@hlfv1 -n xxx -V 0.0.2 it says the following : Upgrading

使用Express Multer在PostgreSQL中存储图像

I'm trying to save images from my react app to backend using nodejs(express) and multer, I tried from these How to upload image using javascript fetch api and express multer after I got the message

Git流完成一个特性而不删除分支

Recently I've started to use gitflow to enchance my git experience. I often do start a new feature, work a little bit on it, and then I can finish it. What git flow does with git flow feature finish

Java哈希速度

I'm testing the speed of 3 hash functions in Java (Blake2b-256, SHA1, and SHA-256) and I'm getting some results that I'm curious about. AFAIK, Java does not have a built in Blake2b implementation, so

警告:可以

Full error image: error image I am making a fetch request and when I want to set the state to save some errors that happens. How do I fix this? Code: onClickLogIn = (username, password) =>

当元素在视图中时动画CSS?jQuery帮助!(使用WOW.JS,但我

I have some percentage circles that I would like to animate when you scroll down to them as at the moment they animate as soon as the page loads whether you can see them or not I thought about

通过API调用删除集合中的单个ActudiStRead附件

I can see two ways to achieve this: (1) Serialize the attachments (with id and url attributes), thus providing an id to the FE that they can use to DELETE /attachments/:id which would then call

无法在Android版发布版中打开数据库

I used this function to check if the database already exist to avoid re-copying the file each time you open the application in Oreo.But in Android Pie it only works for debug version ,not working for

我可以限制GITHUB中的约定吗?

I want to disable commits for certain branches in github and only allow merging via Pull Requests. I can do this in VSTS Git repos, but how do I do the same in GitHub? Is this even possible?

缩放转换

I wonder, if it's possible to consider some 'scaling snap' value while using "scale" mode for the "Transform Controls"? The expectation here is to snap "endpoint" while scaling. Thanks, Roman.

如何在4角之间画出一个按钮到另一个按钮之间的水平线

Here I am trying to draw a horizontal line between the buttons .I have tried in many ways but I can't get it .I think I need to do some magics in CSS but I am new to HTML and CSS That's why I can't

未定义的引用错误:未定义VUE(尽管包含在文件中的直接脚本)

I have been trying to implement this vue.js template into my vue project and it has been returning "Uncaught ReferenceError: Vue is not defined" despite the direct script set on the first line. <

TunSoFrase/MultuNeTePrime/ValueError:不支持的输入

I'm trying to traing Mobilenet to recognize custom objects. I'm following this guide: https://towardsdatascience.com/how-to-train-your-own-object-detector-with-tensorflows-object-detector-api-

“组件扫描”不检测bean

I have the following multi-project structure: -ParentProject -project1 -src -package1 -package1.1 -package1.2 Scan.java Main.java -src -

儿童(

I have two js files Child.js and App.js. Child.js import React from 'react'; const Child = (props) =>{ <div> <button onClick={props.doWhatever}>{props.title}</button&

如何在更新/合并历史时执行Git合并

To start off with, I'm aware of --squash but that doesn't solve my problem on its own. I have two branches, A and B, where A needs to be merged into B periodically. For all intents and purposes these

空间num,num,2 num值意味着什么?

Hi I'm new to mips and I understand that .space num allocates a space that is num bytes, but what does the second num after comma signify?

如何将图像插入到门属性中

I'M probably just overlooking something obvious, but I can't figure out how to insert an image (a png of a chart created by plantuml) into a DOORS attribute. If I drag and drop the image into the

QT5.9中TySerACT OCR应用程序崩溃

I followed this link http://www.life2coding.com/opencv-ocr-tutoiral-build-tesseract-ocr-library-3-02-02-with-qt-5-4-mingw-on-windows/ to build the tesseract library in qt5.9(mingw compiler) under

在使用ELER或其他方式定义类型文件中的属性时,定义它的最佳实践或规则是什么?

Relatively new here to TypeScript, so please excuse me if this is a noob question The ability to define a property and set it's type with TypeScript is certainly a beautiful thing for all the

Woocommerce:在访问特定页面后,将产品添加到购物车中

After visiting a page, the visitor is going directly to the checkout page. The product is now added to the cart. This works all fine. Problem: If the visitor decides to add other product(s) and likes

PHP:为什么在布尔型返回上抛出BoOL总是错误的

I want just to know why if I typecast — using (bool) — boolean value of an expression — e.g 2 < 1 — return always false even if expresion return true ? An example will say more clear <?php $

对象。键(AbObjor)返回对象

I'm reading Eloquent JavaScript's Map section and I'm having trouble understanding its last paragraph: If you do have a plain object that you need to treat as a map for some reason, it is useful to

销售人员的Gmail附加

I am looking for a Gmail add-on which can show the Salesforce page in the Gmail right side panel. I tried using Apps-script but giving an error like "need permissions to fetch the URl". Any help is

通知外观发送静态方法捕获异常

How can I catch Notification::send exception? try{ $send = Notification::send($users, $notification); $status = "success"; } catch (\Exception $exception){ $status

从OpenHAB云连接到MunGdB:MungError的错误:身份验证失败

my mongodb auth is false but it getting error my mongodb.conf file have no authenication # Turn on/off security. Off is currently the default #noauth = true #auth = true my mongodb user conf file

PHP谷歌日历推送通知问题

I'm using the google PHP client library.I created a calendar event then create push notification channel. both created well . but cannot change resourseId with this method $channel->setResourceId(

谷歌Apple API为同一名称的两个不同的地方返回相同的位置

I am using Google place API. While it works fine there is a case where it fails. Place API returns same place for "Gorakhpur, Uttar pradesh" and "Gorakhpur, Haryana". It returns "Gorakhpur, Haryana"

天蓝空组索赔

I am using the authentication workflow sampled in this github project: https://github.com/Azure-Samples/active-directory-java-webapp-openidconnect/ Everything looks fine except for the fact that I do

Bto3每个服务获得可操作的动作

I want to programatically get all the actions a user is allowed to do across aws services. I've tried to fiddle with simulate_principal_policy but it seems this method expects a list of all actions,

类字符串

I am trying to get a specific character from a String that is received from userinput I'm getting the error message: class 'String' has no member named 'at' while(Serial.available() == 0) {}

不显示输出的分析器-ANTLR

[Idea] I would like to add new line of code at the end of the method when it has attribute called "SemanticLog". Example: using adrianProba; using System ; namespace adrianProba { class

请解释JAXB映射类和模式派生类之间的区别是什么?

JAXBContext.newInstance( "com.acme.foo:com.acme.bar" ) The JAXBContext instance is initialized from a list of colon separated Java package names. Each java package contains JAXB mapped classes,

如何用PHP复制[复制]?

I have this following code I made to create a social media site. Please tell me how can I add pagination with this code. <?php $query = $conn->query("select * from post_pic where

在iOS应用程序中,RTMP vs HLS vs WeBRTC哪个更适合流媒体直播?

I have to run a live stream on the native swift based iOS app, what should I use? Is Apple recommends or prefer to its own HLS over RTMP?

TestSert命令不工作,并导致文件错误

I have installed tesseract version 4.0 in ubuntu. I am able to perform all the actions of tesseract using Tesseract CLI like simple OCR text generation. I want to train the LSTM. I read this article

用Babele在IE11中未定义的符号

Using grunt with a babel task throws following error in IE11: 'symbol' is undefined. It seams that the variable _iteratorError is undefined. Where does the error come from? I tried different babel

LARAVLE侦听器队列VAR错误

I'm trying to queue an listener using ˜database˜, it works ok with ˜sync˜ but if i use database and send the variable trough the event it fires an error, i dont know what is happening. the error is: [

PimeFACE从时间选择器验证器输入时间仅在保存按钮上运行

this is my xhtml code. I need to validate the input field of arrival time after losing focus and not after using the save button. How can I do that? <h:outputLabel for="arrivalTime" value="

弹性搜索中的交叉点

I am encountering a problem about intersection functionality. I have the following mapping: { "message": {"type": "text"}, "created_at": {"type": "date", "format": "yyyy-MM-dd HH:mm:ss||yyyy-

我必须为ORM中的每个表分配主键吗?

I want to design database that have 3 tables. 1st table ___> UUID, username, password 2nd table ___> fname, lname, gender, birthdate 3rd table ___> bloood glucose value, date_time In first table,

隐藏选中的选项

I`m wondering if I could in a select of angular material 2 hide the selected option. So I have this right now: <mat-form-field> <mat-select placeholder="{{ 'NAVBAR.LANG' | translate }}"

我怎样才能让我的OnCLICKEELTENER用于我的多选择器工作?

I have a Multiselectorspinner (with checkboxes on the side) and want to get a call when something is clicked on. Now I implemented the OnClickListener, but it only opens once the app starts and isnt

CURL:无法获得具有自签名证书的本地颁发者证书

I have read many posts mentioning issues with local issuer certificate, but I failed to find an answer for my case. I have setup a nginx proxy, that accepts client certificates for authorization.

从Java中的DyjoDB本地选择数据

Hi I have created a table in my local dynamoDB. The fields are, id (N) name (S) school (S) classname (S) Now I want to retrieve all the records which school equels to "xschool" and print. Tried the

使用Seabn,我们如何在大熊猫的单一情节中显示多个列的关系?

I cannot share the dataset but i have columns like class , Q1, Q2 to Q28 and so on. Each column has numerical values. Q have values from 1-5 and class have 1-13. I want to check the relation of class

使用Python插入XML元素

I'm trying to make xml files like this; <root> <a type="AAA"> <value1>1</value1> <value2>2</value2> <value3>3</value3> </a> <b

谷歌地图上没有控制按钮图标,如何修复?

As seen on screenshot, icons from zoom in, zoom out and street view buttons disappeared The code, i'm using to set the map: function _setMap() { if (typeof google === 'object' && typeof

HTML5导航与搜索引擎优化

I'm trying to use HTML5 navigation for AngularJS application. Everything works well, until SEO optimisation. For hashbang sub-urls (example.com/#!/siuburl) most of crawlers (google, facebook) which

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