目标是验证颜色RaisedButton.icon
在我的小部件测试期间,我能够查找带有 的文本find.text以及带有 的图标find.byIcon。没有内置的方法来查找颜色。
一个人如何做相当于 的事情find.color?
我的代码示例是
RaisedButton.icon(
color: Color(_isAttendingEvent ? 0xFFD9FFB3 : 0xFFE3FFC7),
icon: Icon(_isAttendingEvent ? Icons.star : Icons.star_border),
label: Text(
_isAttendingEvent ? 'Attending' : 'Attend',
),
),
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我正在尝试确定是否存在color: Color(0xFFD9FFB3)或color: Color(0xFFE3FFC7)
我不确定这是否可能
我们目前正在开展一个项目,在这个项目中,网络用户创建一个具有级联问题的调查(级联意味着问题几乎没有答案,并且依赖于这些答案,其余问题会发生变化),然后移动用户应该在他们的Android应用程序中获得此调查.JSON我们认为的样本结构如下:
{
"status": "1",
"tabs": [
"Farmer Information",
"Signature",
"Crop Details",
"Land Parcel"
],
"survey":[
{
"type": "TextView",
"cascade": "0",
"value": "What is your name?",
"survey": ""
},
{
"type": "TextView",
"cascade": "0",
"value": "What is your age?",
"survey" : ""
},
{
"type": "RadioButtonGroup",
"cascade": "1",
"value": "Do you have kids?",
"survey" : [
{
"type": "TextView",
"cascade": "1",
"value": "YES",
"survey": [
{
"type": "TextView",
"cascade": "1",
"value": "How many of them below 18?",
"survey": "" …Run Code Online (Sandbox Code Playgroud) 我正在使用dot net framework 4.5编写的用C#编写的restful API.当前它的工作正常......我在JSON转换后返回结果..我期待一个纯粹的JSON结果......我是我目前没有...我期待简单的解决方案在根元素处省略字符串XMLNS,我返回JSON ...结果我得到:

我的代码:
public String GetAllSalesInvoices(string customer_id, string Startdate, string Enddate)
{
System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
string query = "SELECT * FROM sales_invoice WHERE customer_id =" + customer_id + " AND invoice_date BETWEEN '" + Startdate + "' AND '" + Enddate + "'";
DataSet ds = conObj.execQuery(query);
DataTable dt = new DataTable();
dt = ds.Tables[0];
List<sales_invoice> result = new List<sales_invoice>();
foreach (DataRow dr in dt.Rows)
{
sales_invoice inv = new sales_invoice()
{
Invoice_id = …Run Code Online (Sandbox Code Playgroud) 我正在开发一个Java解决方案,它通过属于不同供应商的REST API与一组设备进行通信.因此,对于每个供应商,我必须在我的解决方案中执行一组流程.但是,这些过程将根据每个供应商进行更改.以下是需要执行的高级过程.
Retrieve an XML file from a folderProcess the XML filePerform some image processingSchedule a job and execute it on the scheduled timeStoring data on a MySQL DB and perform some REST calls to outside APIs因此,对于一个供应商可能具有上述所有过程.但对于另一个,可能没有一些过程(例如:图像处理).以下事情应该能够从所选择的解决方案中获得.
I should be able to create custom workflows for new vendorsNeed to identify any failures that have been occurred within the workflow and perform retry mechanisms.Should be able to execute some functions parallelly (Eg: Image processing) …Microsoft 发布了一个新的Azure API管理开发人员门户。
我正在寻找一种从API开发人员门户导出所有文件和配置并能够将其导入另一个的方法。因此,我可以将相同的自定义应用于我的所有APIM实例。
有没有办法做到这一点?
我正在开发一个处理 xml 文件并返回接口数据结构的服务。
起初我以为服务已经正确返回了所有数据,但后来我意识到一些不清楚的事情,特别是当我要读取组件中的数据结构时。
这是我的服务:
import { HttpClient } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { AppConfig } from 'src/app/app.config';
import { forkJoin, Subscription } from 'rxjs';
@Injectable({
providedIn: 'root'
})
export class BibliographyParserService {
private editionUrls = AppConfig.evtSettings.files.editionUrls || [];
private bibliographicCitations: Array<BibliographicCitation> = [];
private subscriptions: Array<Subscription> = [];
constructor(
private http: HttpClient,
) {
}
private getHttpCallsOBSStream() {
return this.editionUrls.map((path) => this.http.get(path, { responseType: 'text'}));
}
public getBibliographicCitations(): Array<BibliographicCitation> {
const parser = new …Run Code Online (Sandbox Code Playgroud) 我正在检查 S3 存储桶中是否存在对象。以下是我正在使用的代码片段。
obj是文件名。
s3 = boto3.resource('s3')
try:
s3.head_object(Bucket=bucket_name, Key=obj)
except ClientError as e:
return False
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但它抛出了我的异常:
An exception occurred in python_code : 's3.ServiceResource' object has no attribute 'head_object'
我用于此 API 的参考 - https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/s3.html#S3.Client.head_object
谁能帮我解决这个问题?
我尝试使用以下代码绘制在tkinter中创建一行的点:
import tkinter as tk
from time import sleep
def myfunction(event):
x, y = event.x, event.y
x1 = (x+1)
y1 = (y+1)
canvas.create_line(x, y, x1, y1)
sleep(0.5)
root = tk.Tk()
canvas = tk.Canvas(root, width=400, height=400)
canvas.pack()
root.bind('d', myfunction)
root.mainloop()
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可以理解的是,当我按下"d"时,该程序只能说明一点.我试过在myfunction函数中使用循环,如下所示:
def myfunction(event):
x, y = event.x, event.y
x1 = (x+1)
y1 = (y+1)
for x in range(0,5):
canvas.create_line(x, y, x1, y1)
sleep(0.1)
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但这不起作用.我尝试了很多其他解决方案,但似乎都没有.
有这个问题的解决方案吗?
我有一个像这样的方法,static List<int> Compare(List<int> a, List<int> b)
我希望这个函数return [aPoints bPoints]类似于[2 1]
但是,我坚持在循环后使用if语句存储值并将它们放入分数中。我试过这个:
static List<int> Compare(List<int> a, List<int> b)
{
int aPoints = 0;
int bPoints = 0;
List<int> score = new List<int>() { aPoints, bPoints };
for (int i = 0; i < 3; i++)
{
if (a[i] > b[i])
{
aPoints++;
}
else if (a[i] < b[i])
{
bPoints++;
}
}
return score;
}
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并将它们打印在:
static void Main(string[] args){}
Run Code Online (Sandbox Code Playgroud) 嗨,以下是我的查询,用于获取大量数据,query想知道我们如何格式化date和time stamp
SELECT
*
FROM (
SELECT
(
SELECT
x.value
FROM
UNNEST(user_properties) x
WHERE
x.key='restaurantName'
AND x.value IS NOT NULL).string_value AS restaurantName,
event_date AS date,
event_timestamp AS time,
event_name AS Event,
(
SELECT
x.value
FROM
UNNEST(user_properties) x
WHERE
x.key='restaurantId'
AND x.value IS NOT NULL).string_value AS restaurantID,
(
SELECT
x.value
FROM
UNNEST(user_properties) x
WHERE
x.key='user_id'
AND x.value IS NOT NULL).string_value AS user
FROM
`analytics.events_*`
WHERE
event_name = "OrderSummary"
AND app_info.id = "app_Id"
ORDER BY
event_timestamp ASC) …Run Code Online (Sandbox Code Playgroud) 在我的 angular 应用程序中,我无法使用以下命令导入 Observables -
import { Observable } from 'rxjs/Observable';
面对以下错误 -
ERROR in node_modules/rxjs/Observable.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/Observable'.
node_modules/rxjs/Rx.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat'.
src/app/home/home.component.ts(2,10): error TS2305: Module '"../../../node_modules/rxjs/Observable"' has no exported member 'Observable'
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任何人都可以提出一些答案吗?