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get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...UnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond ) fromDate:[[NSDate alloc] init]];
[components setHour:-[components hour]];
[components setMinute:-[components minute]];
[components setSecond:-[components second]];
NSDate *today = [cal dateByAddingComponents:components toDate:[[NSDate alloc] ...
Different dependencies for different build profiles
...
Your groupId, artifactId should be tokenized in your profiles as properties and you can move your dependencies to the generic section.
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Can we open pdf file using UIWebView on iOS?
... in your web view directly:
Objective-C
UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(10, 10, 200, 200)];
NSURL *targetURL = [NSURL URLWithString:@"https://www.example.com/document.pdf"];
NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
[webView loadRequest:requ...
Does the default constructor initialize built-in types?
...tually a source for really strange errors as modern OSs tend to fill newly allocated memory regions with zeroes. If you expect that, it might work the first time. However, as your application keeps running, delete-ing and new-ing objects, you will sooner or later end up in a situation where you expe...
UITableView Cell selected Color?
...ed).
Therefore, if you're using a plain-style table, then you'll need to alloc-init a new UIView having your desired background colour and then assign it to selectedBackgroundView.
Alternatively, you could use:
cell.selectionStyle = UITableViewCellSelectionStyleGray;
if all you wanted was a gr...
Is leaked memory freed up when the program exits?
...o, and thus can no longer free. The OS still keeps track of all the memory allocated to a process, and will free it when that process terminates.
In the vast majority of cases the OS will free the memory - as is the case with normal "flavors" of Windows, Linux, Solaris, etc. However it is important...
What should I use Android AccountManager for?
...hat the authorization be done by Company B (authenticator) by issuing some token called Access Token for the eligible users (third party) and then providing Company A (resource owner) with the token. So no token means no eligibility.
I have elaborated more on this and more on AccountManager on my w...
How do I initialize an empty array in C#?
...r of places that return an empty byte array to avoid
// unnecessary memory allocation.
internal static class EmptyArray<T>
{
public static readonly T[] Value = new T[0];
}
(code contract related code removed for clarity)
See also:
Array.Empty source code on Reference Source
Introducti...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
...s'
There are things that your code cannot do from user mode - things like allocating memory or accessing hardware (HDD, network, etc.). These are under the supervision of the kernel, and it alone can do them. Some operations like malloc orfread/fwrite will invoke these kernel functions and that the...
Is there any use for unique_ptr with array?
...
Some people do not have the luxury of using std::vector, even with allocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector or ...