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android - get null in AsyncTask

my AsyncTask codes return null when try to login. I got confused, why on device it can throw the ... system.NativeStart.main(Native Method) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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list - Making an undo function for a 7x7 board in Python

I am currently trying to program a game called Pah Tum. The game involves a board that is 7x7. For the board ... can use them for this scenario. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Javascript Canvas Get images pixel data

I have a two part question about javascript canvas: Part 1: I have a .jpg in the same file as my html document. ... for the site but not for me. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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swift - Why do I need to cast this generic return value?

I'm confused about generics here. The static keyword is making it difficult for me to understand. import ... Performer.fetchAll(in: context) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to use apache fop with extensions (f.e. barcode4j) in java applet

I want to have a barcode (Code128) generated during the xsl fop translation. As it is said in the apache fop ... 1. What am I doing wrong? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Adding custom style to button added in QTableview

I have created one table by using QTableview and QAbstractTableModel. In the last column, I am also able to add a ... any way to achieve this? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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bitcoin - Using importXML results in "Imported Content is Empty" error on Google Spreadsheets

What I'm trying to do: Dynamically import the bitcoin/BTC price, from https://www.luno.com/en/price/, OR https: ... is Empty " error. Any help? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Formatting XML with JAXB

I've been trying to find a similar answered question but I haven't had any luck. I basically need to read ... author; private String b; } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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floating point - How to weigh up calculation error

Consider the following example. There is an image where user can select rectangular area (part of it). ... conditions are extremely unlikely. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Generating XML in Python

I'm developing an API using Python which makes server calls using XML. I am debating on whether to use a ... dynamically will be a benefit. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to make 3D object from random points using three.js?

I generate 10 random points. I want connect each point to every another and get faces for every flat area. So, it ... push(objects3[ x2 ]); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to format list in PHP to be used as an NSArray in Objective C?

So I am a totally new to PHP. In fact, I know nothing about it. I am developing an iPhone app and aiming ... up... Appreciate any help. thanks! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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SecurityError: Permission denied to access property on cross-origin object laravel/javascript

I have a laravel app. i have two urls Route::get('/', function () { return view('welcome'); }); ... document.URL of iframe is "about:blank" See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - How can i show data into bootstrap panel dynamically by javascript?

How can show data into bootstrap panel dynamically when i click any panel?When i clicked each of a panel that data ... (response); } }); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Android HttpPost send empty $_POST to a PHP script

I have been trying to send a POST request to a URL from my Android App, but all that I get is a ... .permission.INTERNET" /> Any thoughts? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - expect(received).toEqual(expected) - error

I am trying to run an unit test for React JS - using jest / enzyme. The test is failing at the ... the code would be extremely helpful Thanks See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Pandas table scrape

I am trying to figure the best approach of converting a table into JSON records. At present I have the output as ... ' per item not just 2. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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haskell - how does hgearman-client work?

Unfortunately the package hgearman does not provide any test or example and I can't work it out for myself how should ... idea how to do that. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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visual studio - Setting C# Memory Parameters

While I am still new to C# I'm curious if there is a way to tell windows that it needs to set aside ... aside and then collect later. Thoughts? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - TomEE deploy failed datasource not found

I want to deploy a war file to TomEE but fails with: Caused by: javax.naming.NameNotFoundException: Name ... configuration and it works fine. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - CSS Code Structure with PHP Loops Round 2

Round 2: Trying to figure out why my content looks fine when screen size is under 992px but not when it ... insight is greatly appreciated :) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - Part of SVG Mask Is Opaque and Color Is Inverted

What I'm trying to do is add a textured frame or border to an SVG mask. Here is a working demo of what I ... have any effect. What am I missing? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ssl - Message length restriction in RSA

In RSA the message length should not exceed the (keysize/8) bytes. Why is there such a restriction? What is ... the the input string "abcde"? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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stream - How to get raw jpeg data (but no metatags / proprietary markers)

I want to get raw jpeg data - no metadata. I'm very confused looking at the jpeg "standards". How correct ... /jpeg-faq/part1/section-15.html See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Select line from paragraph using jQuery

i have a paragraph like: some text1. some text2. some text3. some text4. some text5. some text6. some text7. i ... in variable. how to do this? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ruby - Rails rspec undefined method `receive_message' for #<RSpec::ExampleGroups::

I'm trying to mock some data inside before(:each) and get NoMethodError: undefined method `receive_message' for #<RSpec: ... end How to fix it? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Displaying histogram pixel values from PGM image (p5) using Pure C without any image processing library

This question is challenging to get more understanding on Image Processing using pure C. I have done a simple ... fgets, see sample image. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - IE and FF render my table "unexpectedly"

I've been struggling with Table-Layout and now I tried to implement the lessons in my application - and that supposedly ... > </body> </html> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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