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back button callback in navigationController in iOS
...
William Jockusch's answer solve this problem with easy trick.
-(void) viewWillDisappear:(BOOL)animated {
if ([self.navigationController.viewControllers indexOfObject:self]==NSNotFound) {
// back button was pressed. We know this is true because self is no longer
// in the ...
What is a handle in C++?
...hing from an integer index to a pointer to a resource in kernel space. The idea is that they provide an abstraction of a resource, so you don't need to know much about the resource itself to use it.
For instance, the HWND in the Win32 API is a handle for a Window. By itself it's useless: you can't ...
What is `git diff --patience` for?
...S-based diff at its core, but with an important difference, as it only considers the longest common subsequence of the signature lines:
Find all lines which occur exactly once on both sides, then do longest common subsequence on those lines, matching them up.
When should you use patience diff? A...
Sorting data based on second column of a file
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This doesn't consider spaces in the first column neither works if there are more columns after the second, since -k read until the line end. Supposing it is a TSV file a better solution is sort -t$'\t' -k2 -n FILE
– tuxE...
Is it possible for a unit test to assert that a method calls sys.exit()
...s excellent answer you can also check for specific statuses if they're provided in the function you're testing. For example if your_method() contained the following sys.exit("Error") it would be possible to test for "Error" specifically:
with self.assertRaises(SystemExit) as cm:
your_method()
...
JavaScript Nested function
...on.
The functions defined within another function won't be accessible outside the function unless they have been attached to an object that is accessible outside the function:
function foo(doBar)
{
function bar()
{
console.log( 'bar' );
}
function baz()
{
console.log( 'baz' );
...
How to compare times in Python?
...ieslander's answer (and generally should wait a few more minutes than you did :P), as it's a bit more specific to exactly what you asked.
– Roger Pate
Dec 2 '09 at 8:40
add a ...
Is it possible to adjust x,y position for titleLabel of UIButton?
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I didn't even need the first two lines... setTitleEdgeInsets: was all I found necessary to shift the text around.
– ArtOfWarfare
Jan 1 '13 at 18:34
...
What is the difference between gsub and sub methods for Ruby Strings
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Spring 3 MVC accessing HttpRequest from controller
...**
* Generate a PDF report...
*/
@RequestMapping(value = "/report/{objectId}", method = RequestMethod.GET)
public @ResponseBody void generateReport(
@PathVariable("objectId") Long objectId,
HttpServletRequest request,
HttpServletResponse response) {
// ...
// Her...