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Detect the specific iPhone/iPod touch model [duplicate]
...
BOOL hasHighResScreen = NO;
if ([UIScreen instancesRespondToSelector:@selector(scale)]) {
CGFloat scale = [[UIScreen mainScreen] scale];
if (scale > 1.0) {
hasHighResScreen = YES;
}
}
...
How to send a simple string between two programs using pipes?
...ave program 1 write the string to stdout (as if you'd like it to appear in screen). Then the second program should read a string from stdin, as if a user was typing from a keyboard. then you run:
$ program_1 | program_2
sh...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
...can add on. Props for coming up with a totally much better answer than the screen-scraping I was typing up, BTW :).
– Domenic
May 12 '10 at 17:21
...
剖析程序的内存布局 - C/C++ - 清泛网 - 专注C/C++及内核技术
...nux中是一种“灵活布局”（flexible layout），而且以此作为默认方式已经有些年头了。它假设我们有值RLIMIT_STACK。当情况不是这样时，Linux退回使用“经典布局”（classic layout），如下图所示：
对虚拟地址空间的布局就...
Pure CSS to make font-size responsive based on dynamic amount of characters
...
The only way would probably be to set different widths for different screen sizes, but this approach is pretty inacurate and you should use a js solution.
h1 {
font-size: 20px;
}
@media all and (max-device-width: 720px){
h1 {
font-size: 18px;
}
}
@media all and (max-devi...
Android map v2 zoom to show all the markers
...ith an appropriate Runnable. This is exactly the reason why getting marker screen coordinates can't be done in onCreate - see stackoverflow.com/q/14429877/1820695 However you can use some methods even before layout has happened - eg. CameraUpdateFactory.newLatLngBounds() with 4 params.
...
Is there a portable way to print a message from the C preprocessor?
...ed before the C code. There are no preprocessor directives to print to the screen, because preprocessor code isn't executed, it is used to generate the C code which will be compiled into executable code.
Anything wrong with:
#ifdef ...
printf("Hello");
#endif
Because this is all you can do as fa...
iOS 5 fixed positioning and virtual keyboard
I have a mobile website which has a div pinned to the bottom of the screen via position:fixed. All works fine in iOS 5 (I'm testing on an iPod Touch) until I'm on a page with a form. When I tap into an input field and the virtual keyboard appears, suddenly the fixed position of my div is lost. The d...
pdftk compression option
...ifferently):
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH -dQUIET -sOutputFile=output.pdf input.pdf
Edit: I just discovered another option (for lossless compression), which avoids the nasty gs command. qpdf is a neat tool that converts PDFs (compression/...
How to change the Push and Pop animations in a navigation based app
... the one that you pop on top, do nothing. Easy.
So your class...
class SomeScreen: UIViewController {
}
becomes...
class FrontScreen: UIViewController,
UIViewControllerTransitioningDelegate, UINavigationControllerDelegate {
let simpleOver = SimpleOver()
override func view...