Convert NSArray to NSString in Objective-C

Question

I am wondering how to convert an NSArray    Apple     Pear    323    Orange   to a string in Objective-C

User · Answer

I recently found a really good tutorial on Objective-C Strings:

http://ios-blog.co.uk/tutorials/objective-c-strings-a-guide-for-beginners/

And I thought that this might be of interest:

If you want to split the string into an array use a method called componentsSeparatedByString to achieve this:

NSString *yourString = @"This is a test string";
    NSArray *yourWords = [myString componentsSeparatedByString:@" "];

    // yourWords is now: [@"This", @"is", @"a", @"test", @"string"]

if you need to split on a set of several different characters, use NSString’s componentsSeparatedByCharactersInSet:

NSString *yourString = @"Foo-bar/iOS-Blog";
NSArray *yourWords = [myString componentsSeparatedByCharactersInSet:
                  [NSCharacterSet characterSetWithCharactersInString:@"-/"]
                ];

// yourWords is now: [@"Foo", @"bar", @"iOS", @"Blog"]

Note however that the separator string can’t be blank. If you need to separate a string into its individual characters, just loop through the length of the string and convert each char into a new string:

NSMutableArray *characters = [[NSMutableArray alloc] initWithCapacity:[myString length]];
for (int i=0; i < [myString length]; i++) {
    NSString *ichar  = [NSString stringWithFormat:@"%c", [myString characterAtIndex:i]];
    [characters addObject:ichar];
}

User · Answer

One approach would be to iterate over the array  calling the description message on each item   NSMutableString   result     NSMutableString alloc  init   for  NSObject   obj in array         result appendString  obj description      NSLog   The concatenated string is      result     Another approach would be to do something based on each item s class   NSMutableString   result     NSMutableString alloc  init   for  NSObject   obj in array        if   obj isKindOfClass  NSNumber class                     append something           else                result appendString  obj description            NSLog   The concatenated string is      result     If you want commas and other extraneous information  you can just do   NSString   result    array description

User · Answer

NSArray  array    NSArray arrayWithObjects   One    Two    Three   nil   NSString  stringFromArray    array componentsJoinedByString          The first line initializes an array with objects  The second line joins all elements of that array by adding the string inside the    and returns a string

User · Answer

Objective C Solution  NSArray   array       1     2     3    NSString   stringFromArray     array valueForKey   description   componentsJoinedByString   -          1-2-3    Those who are looking for a solution in Swift  If the array contains strings  you can use the String s join method   var array     1    2    3    let stringFromArray    -  join array      1-2-3    In Swift 2   var array     1    2    3    let stringFromArray   array joinWithSeparator  -       1-2-3    In Swift 3  amp  4  var array     1    2    3    let stringFromArray   array joined separator   -       1-2-3

User · Answer

I think Sanjay s answer was almost there but i used it this way   NSArray  myArray     NSArray alloc  initWithObjects   Hello    World   nil   NSString  greeting    myArray componentsJoinedByString        NSLog       greeting     Output    2015-01-25 08 47 14 830 StringTest 11639 394302  Hello World   As Sanjay had hinted - I used method componentsJoinedByString from NSArray that does joining and gives you back NSString  BTW NSString has reverse method componentsSeparatedByString that does the splitting and gives you NSArray back

User · Answer

The way I know is easy   var NSArray variable   NSArray Object n  var stringVarible   NSArray variable as String   n is the inner position in the array This in SWIFT Language   It might work in Objective C

User · Answer

Swift 3 0 solution   let string   array joined separator

User · Answer

NSString   str    componentsJoinedByString         and you have dic or multiple array then used bellow                              NSString   result     array valueForKey   description   componentsJoinedByString

User · Answer

NSString   result     array valueForKey   description   componentsJoinedByString

[objective-c] Convert NSArray to NSString in Objective-C

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