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Can I use Objective-C blocks as properties?
...impleBlock)(void);
@property (nonatomic, copy) BOOL (^blockWithParamter)(NSString *input);
If you are going to be repeating the same block in several places use a type def
typedef void(^MyCompletionBlock)(BOOL success, NSError *error);
@property (nonatomic) MyCompletionBlock completion;
...
What characters do I need to escape in XML documents?
... library, they will do the escaping for you. Many XML issues are caused by string concatenation.
XML escape characters
There are only five:
" "
' '
< &lt;
> &gt;
& &amp;
Escaping characters depends on where the special character is used.
The ex...
Capitalize or change case of an NSString in Objective-C
I was wondering how to capitalize a string found in an object in an NSMutableArray .
3 Answers
...
Location Services not working in iOS 8
...t wanna show custom explanation to the user, just set this key to an empty string.
– nonamelive
Sep 12 '14 at 23:43
7
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Is there a built-in method to compare collections?
...ust specify a correct IComparer<T> for those keys. For example, with string keys (which exhibit this issue), you must do the following in order to get correct results:
dictionary1.OrderBy(kvp => kvp.Key, StringComparer.Ordinal).SequenceEqual(dictionary2.OrderBy(kvp => kvp.Key, StringCom...
Most efficient conversion of ResultSet to JSON?
The following code converts a ResultSet to a JSON string using JSONArray and JSONObject .
14 Answers
...
How to replace multiple strings in a file using PowerShell
... customising a configuration file. I want to replace multiple instances of strings within this file, and I tried using PowerShell to do the job.
...
How to change language of app when user selects language?
...om list of languages. Have a method like below which accepts the locale as String (like 'en' for English, 'hi' for hindi), configure the locale for your App and refresh your current activity to reflect the change in language. The locale you applied will not be changed until you manually change it ag...
structure vs class in swift language
... everywhere that Bob was ever referenced.
class SomeClass {
var name: String
init(name: String) {
self.name = name
}
}
var aClass = SomeClass(name: "Bob")
var bClass = aClass // aClass and bClass now reference the same instance!
bClass.name = "Sue"
println(aClass.name) // "Sue...
How do you effectively model inheritance in a database?
...t elements.
So for example:
class Person {
public int ID;
public string FirstName;
public string LastName;
}
class Employee : Person {
public DateTime StartDate;
}
Would result in tables like:
table Person
------------
int id (PK)
string firstname
string lastname
table Employe...