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How do I set bold and italic on UILabel of iPhone/iPad?
... Using the font descriptor you need no names:
UILabel * label = [[UILabel alloc] init]; // use your label object instead of this
UIFontDescriptor * fontD = [label.font.fontDescriptor
fontDescriptorWithSymbolicTraits:UIFontDescriptorTraitBold
| UIFontDescripto...
Load resources from relative path using local html in uiwebview
...
I simply do this:
UIWebView *webView = [[[UIWebView alloc] init] autorelease];
NSURL *url = [[NSBundle mainBundle] URLForResource:@"index" withExtension:@"html"];
NSURLRequest* request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
Where "in...
MySQL: multiple tables or one table with many columns?
...ple the date-of-birth of a user will not be updated ever, but the back end token may be invalidated after a period of time and will require frequent updates. Would it be better if I separate the tables in this manner to improve the performance? I'll now go read about the wiki that you mentioned :)
...
apc vs eaccelerator vs xcache
...ich were things under my control. 1) Don't let APC fill up. Make sure to allocate enough memory 2) Don't use apc_clear_cache() on an active server 3) APC doesn't really cope well with heavy lock contention -- don't try to write to a single key from multiple processes simultaneously.
...
What does the “at” (@) symbol do in Python?
...tors, which includes @, which makes it also an operator:
The following tokens are operators:
+ - * ** / // % @
<< >> & | ^ ~
< > <= >= == !=
and in the next page, the Dat...
Convert InputStream to byte array in Java
...'s answer shows how you can avoid using an intermediate buffer, but rather allocate an array of the correct size. Unless you're dealing with large files I personally prefer the code above, which is more elegant and can be used for InputStreams where the number of bytes to read is not known in advan...
Navigation bar show/hide
...l help you.
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]
initWithTarget:self action:@selector(showHideNavbar:)];
[self.view addGestureRecognizer:tapGesture];
-(void) showHideNavbar:(id) sender
{
// write code to show/hide nav bar here
// check if the Navigation Bar is s...
Difference between fprintf, printf and sprintf?
...dout)
fprintf goes to a file handle (FILE*)
sprintf goes to a buffer you allocated. (char*)
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How to convert a string into double and vice versa?
...separators, also.
NSNumberFormatter * myNumFormatter = [[NSNumberFormatter alloc] init];
[myNumFormatter setLocale:[NSLocale currentLocale]]; // happen by default?
[myNumFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
// next line is very important!
[myNumFormatter setNumberStyle...
When should I use nil and NULL in Objective-C?
...e object. Let's have an example:
NSMutableArray *check = [[NSMutableArray alloc] init];
[check addObject:[NSNull null]];
[check addObject:nil];
On the second line, we will not get any error, because it is perfectly fair to insert a NSNull object into a collection type object. On the third line, w...