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Android basics: running code in the UI thread

In the viewpoint of running code in the UI thread, is there any difference between: MainActivity.this.runOnUiThread(new Runnable( ... "I am the UI thread"); } } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - How to set input type date's default value to today?

Given an input element: <input type="date" /> Is there any way to set the default value of the date field to today's date? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Access Control Request Headers, is added to header in AJAX request with jQuery

I would like to add a custom header to an AJAX POST request from jQuery. I have tried this: $.ajax({ ... value My-Second-Header: second value Is it possible? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Why is Java's SimpleDateFormat not thread-safe?

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Convert UTC Epoch to local date

I have been fighting with this for a bit now. I'm trying to convert epoch to a date object. The epoch ... under 1000, which is in milliseconds. Any suggestions? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Convert python datetime to epoch with strftime

I have a time in UTC from which I want the number of seconds since epoch. I am using strftime to ... libraries unless standard. (I have portability concerns). Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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apache - How to Set AllowOverride all

I want to set the AllowOverride all But I don't know how to do it. I have found the following code by searching the ... where to put this code or how to do it? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Calling Python in Java?

I am wondering if it is possible to call python functions from java code using jython, or is it only for calling java code from python? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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excel - How to return a result from a VBA function

How do I return a result from a function? For example: Public Function test() As Integer return 1 End Function ... do I make this function return an integer? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to add transparent watermark in center of a video with ffmpeg?

I am currently using these commands: Top left corner ffmpeg -i inputvideo.avi -vf "movie=watermarklogo.png [ ... to place watermark center of the video ? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - DRF: Simple foreign key assignment with nested serializers?

With Django REST Framework, a standard ModelSerializer will allow ForeignKey model relationships to be assigned or changed ... not class Meta: model = Parent Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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262 views

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ios - Status bar and navigation bar issue in IOS7

I am migrating my application to iOS 7. For handing the status bar issue I have added this code if([[[ ... :reader animated:YES]; Ref: Thanks in advance. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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272 views

1 answer

jsf 2 - Spawning threads in a JSF managed bean for scheduled tasks using a timer

I would like to know if it's ok to use Timer inside application scoped beans. Example, lets say that I want to ... this or should I stick with the old pattern? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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284 views

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jQuery and AJAX response header

So I've got this jQuery AJAX call, and the response comes from the server in the form of a 302 redirect. ... with the parsing of the header would be fantastic. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - WChars, Encodings, Standards and Portability

The following may not qualify as a SO question; if it is out of bounds, please feel free to tell me to go ... of "character" in the first place. Caveat emptor. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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335 views

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optimization - Handling very large numbers in Python

I've been considering fast poker hand evaluation in Python. It occurred to me that one way to speed the ... allow me to perform arithmetic operations on it? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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94 views

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c# - How do I reflect over the members of dynamic object?

I need to get a dictionary of properties and their values from an object declared with the dynamic keyword ... IDictionary<string, object> propertyValues = ??? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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98 views

1 answer

c# - How to get started with developing Internet Explorer extensions?

Does anyone here have experience with/in developing IE extensions that can share their knowledge? This would include code samples, ... in C++, I can do that. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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179 views

1 answer

java - What is @ModelAttribute in Spring MVC?

What is the purpose and usage of @ModelAttribute in Spring MVC? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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704 views

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github - Git, fatal: The remote end hung up unexpectedly

When I tried to run git push origin master --force I just got Counting objects: 2649, done. Delta compression using up to ... the key? If so, how do I use it? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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324 views

1 answer

linux - Regex (grep) for multi-line search needed

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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221 views

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c++ - Will two atomic writes to different locations in different threads always be seen in the same order by other threads?

Similar to my previous question, consider this code -- Initially -- std::atomic<int> x{0}; std::atomic ... would prevent the weird outcome. Can anyone explain? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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191 views

1 answer

c - Why does unaligned access to mmap'ed memory sometimes segfault on AMD64?

I have this piece of code which segfaults when run on Ubuntu 14.04 on an AMD64 compatible CPU: #include ... , and why only under such specific circumstances? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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123 views

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c++ - Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition

One of the most interesting projects I've worked on in the past couple of years was a project about image ... only people who ask questions should learn. :) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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167 views

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c++ - Why are elementwise additions much faster in separate loops than in a combined loop?

Suppose a1, b1, c1, and d1 point to heap memory, and my numerical code has the following core loop. const int n ... (It shows FLOP/s for different values of n.) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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302 views

1 answer

linux - How to change permissions for a folder and its subfolders/files in one step

I would like to change the permissions of a folder and all its subfolders and files in one step (command) in ... set a default 'chmod' in a Linux terminal? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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86 views

1 answer

android - Get root view from current activity

I know how to get the root view with View.getRootView(). I am also able to get the view from a button's onClick ... But how can I get the view in an activity? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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217 views

1 answer

javascript - Call async/await functions in parallel

As far as I understand, in ES7/ES2016 putting multiple await's in code will work similar to chaining .then() with ... I'm asking about a more general use case. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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