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UIView frame, bounds and center
...to add more correct content.
First a recap on the question: frame, bounds and center and theirs relationships.
Frame A view's frame (CGRect) is the position of its rectangle in the superview's coordinate system. By default it starts at the top left.
Bounds A view's bounds (CGRect) expresses a vie...
Meaning of $? (dollar question mark) in shell scripts
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This is the exit status of the last executed command.
For example the command true always returns a status of 0 and false always returns a status of 1:
true
echo $? # echoes 0
false
echo $? # echoes 1
From the manual: (acessible by calling man bash in your shell)
$?...
Definition of a Balanced Tree
... tree for me. I have that "a tree is balanced if each sub-tree is balanced and the height of the two sub-trees differ by at most one.
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Moving UITabBarItem Image down?
Normally on each tab of a UITabBar you have a small image and a title naming the tab. The image is positioned/centred towards the top of the tab to accommodate the title underneath. My question is: if you want to have a tabBar with just an image and no title is there a way to move the image down ...
How to create a video from images with FFmpeg?
... constant frame rate. See Create a video slideshow from images – FFmpeg, and this What is the (technical) difference between -r and the fps filter?. So using -r parameter sometimes couse skipping first image..
– khan
Nov 6 '14 at 17:55
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How to add a spinner icon to button when it's in the Loading state?
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data-loading-text is deprecated since v3.3.5 and will be removed in v4.
– Jonathan
Jun 28 '15 at 19:57
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Why does GCC generate such radically different assembly for nearly the same C code?
...I've managed to see how GCC optimizes the first case.
Before we can understand why they are so different, first we must understand how GCC optimizes fast_trunc_one().
Believe it or not, fast_trunc_one() is being optimized to this:
int fast_trunc_one(int i) {
int mantissa, exponent;
mantissa...
Fastest Way to Serve a File Using PHP
...receives a file path, identifies what it is, sets the appropriate headers, and serves it just like Apache would.
8 Answers
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How do I get the row count of a pandas DataFrame?
I'm trying to get the number of rows of dataframe df with Pandas, and here is my code.
14 Answers
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Linux/Unix command to determine if process is running?
I need a platform independent (Linux/Unix|OSX) shell/bash command that will determine if a specific process is running. e.g. mysqld , httpd ...
What is the simplest way/command to do this?
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