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Android phone orientation overview including compass

I've been trying to get my head around the Android orientation sensors for a while. I thought I understood ... confused people even further!) See Question&Answers more detail:os...

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

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307 views

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node.js - Restart node upon changing a file

For someone who is coming from PHP background the process of killing node and starting it again after every code ... when code change is saved? See Question&Answers more detail:os...

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

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513 views

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android - Fragment transaction animation: slide in and slide out

I've check some tutorials for animate transaction between fragments. I've used this method for animation and it works: ... How can I do it? See Question&Answers more detail:os...

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

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svn - Can you do a partial checkout with Subversion?

If I had 20 directories under trunk/ with lots of files in each and only needed 3 of those directories, ... those 3 directories under trunk? See Question&Answers more detail:os...

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

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node.js - On EC2: sudo node command not found, but node without sudo is ok

I have just installed nodejs on a new EC2 micro instance. I installed it normally, ./configure -> make -> ... path while running "sudo node"? See Question&Answers more detail:os...

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

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android - How to center progress indicator in ProgressDialog easily (when no title/text passed along)

When calling progressDialog = ProgressDialog.show(this, null, null, true); usually the developers wants to ... using AnimatedDrawable there. See Question&Answers more detail:os...

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

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sublimetext - How to customise file type to syntax associations in Sublime Text?

I'd like Sublime 2 editor to treat *.sbt files (to highlight syntax) as Scala language, same as *.scala, but I ... up. Do you happen to know? See Question&Answers more detail:os...

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

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debugging - Printing a variable memory address in swift

Is there anyway to simulate the [NSString stringWithFormat:@"%p", myVar], from Objective-C, in the new Swift language ... (str) has address: ?") See Question&Answers more detail:os...

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

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python - Why is there no xrange function in Python3?

Recently I started using Python3 and it's lack of xrange hurts. Simple example: Python2: from time import time as t ... PEP, I can't find it. See Question&Answers more detail:os...

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

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r - Set margin size when converting from Markdown to PDF with pandoc

I have created an RMarkdown file in RStudio and managed to knit it with knitr into an HTML and .md file. ... but haven't found anything useful. See Question&Answers more detail:os...

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

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javascript - Ways to save Backbone.js model data?

I am more into front end development and have recently started exploring Backbone.js into my app. I want ... process with some simple example. See Question&Answers more detail:os...

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

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javascript - npm WARN ... requires a peer of ... but none is installed. You must install peer dependencies yourself

I tried to run a project downloaded from github. Unfortunately, during npm install the following warnings were shown. I tried ... -directive.d.ts (14,27): Cannot find module '@an...

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

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installation - Install IPA with iTunes 12

I have an IPA signed for ad-hoc distribution. I can install it fine with Flash Builder. I'd like to install a ... this with the new iTunes 12? See Question&Answers more detail:os...

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

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actionscript 3 - What are the major performance hitters in AS3 aside from rendering vectors?

In ActionScript 3, using vector graphics is a guaranteed way to cause massive damage to the performance of your ... my own coding style. See Question&Answers more detail:os...

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

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How do you use the Android Volley API?

I am thinking of implementing the Android Volley library in my next projects (Google IO presentation about Volley) ... using Volley? Source code See Question&Answers more detail:os...

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

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297 views

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sql - How do I interpret precision and scale of a number in a database?

I have the following column specified in a database: decimal(5,2) How does one interpret this? ... stackoverflow for future reference. See Question&Answers more detail:os...

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

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640 views

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android - image size (drawable-hdpi/ldpi/mdpi/xhdpi)

Study android, now I've some images to put into drawable dirs (hdpi/ldpi/mdpi/xhdpi). I read a lot but ... be an image for every directories? See Question&Answers more detail:os...

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

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384 views

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Difference between string and text in rails?

I'm making a new web app using Rails, and was wondering, what's the difference between string and text? And when should each be used? See Question&Answers more detail:os...

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

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How to change size of split screen emacs windows?

I have emacs split horizontally - on top I'm editing Perl code, the bottom is the shell. By default emacs ... wondering how I could do that. See Question&Answers more detail:os...

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

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javascript - What's the difference between a continuation and a callback?

I've been browsing all over the web in search of enlightenment about continuations, and it's mind boggling how the ... { return x + y; } See Question&Answers more detail:os...

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

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363 views

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ios - UITableView - scroll to the top

In my table view I have to scroll to the top. But I cannot guarantee that the first object is going to be ... scroll to the top of table view? See Question&Answers more detail: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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How to display request headers with command line curl

Command line curl can display response header by using -D option, but I want to see what request header it is sending. How can I do that? See Question&Answers more detail:os...

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

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126 views

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How do I find the .NET version?

How do I find out which version of .NET is installed? I'm looking for something as simple as "java -version ... to know about a client machine. See Question&Answers more detail:os...

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

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320 views

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c# - What is a callback?

What's a callback and how is it implemented in C#? See Question&Answers more detail:os...

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

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python - What is the source code of the "this" module doing?

If you open a Python interpreter, and type "import this", as you know, it prints: The Zen of Python, by Tim Peters ... (c, c) for c in s]) See Question&Answers more detail:os...

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

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943 views

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mysql - SQL keys, MUL vs PRI vs UNI

What is the difference between MUL, PRI and UNI in MySQL? I'm working on a MySQL query, using the command: desc mytable; ... -------+-------+ See Question&Answers more detail:os...

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

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226 views

1 answer

javascript - When to prefer JSON over XML?

My requirement is just to display a set of values retrieved from database on a spread. I am using jquery. See Question&Answers more detail:os...

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

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489 views

1 answer

php - What Are the Differences Between PSR-0 and PSR-4?

Recently I've read about namespaces and how they are beneficial. I'm currently creating a project in ... difference would be appreciated. See Question&Answers more detail:os...

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

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