I have this string:
Test: String
And I want to select the text before the :, as if that were the result: "Test";
Any tip?
Thanks,
Alberto
You can split the string:
NSArray *words = [string componentsSeparatedByString:#":"];
Then select array's first element.
NSString *select = [words objectAtIndex:0];
NSLog(select);
NSString *firstWord = [[string componentsSeparatedByString:#":"] objectAtIndex:0];
you can use
NSString *str = #"Test: String";
NSSArray *Arrstr = [str componentsSeparatedByCharactersInSet:#":"];
Now you will have two strings in the array. Take first by :
NSString *str1 = [Arrstr objectatindex : 0];
Hope that helps you.
Related
I want to remove only first space in below string.
NSString *str = #"IF_Distance (GET_Mi mi=km*1.4,STRING1,STRING2)";
Note: There is a space after IF_Distance and another space after
GET_Mi. I am unable to remove the space after IF_Distance.
Use rangeOfString: to locate the first space, then use stringByReplacingCharactersInRange:withString: to replace it with the empty string.
Remove space by using below code.
NSString *str = #"IF_Distance (GET_Mi mi=km*1.4,STRING1,STRING2)";
NSString *secondString = [str stringByReplacingOccurrencesOfString:#"IF_Distance " withString:#"IF_Distance"];
Try This:
NSString *str = #"IF_Distance (GET_Mi mi=km*1.4,STRING1,STRING2)";
NSString *firstStringContainingSpace = [[str componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] firstObject];//firstStringContainingSpace = IF_Distance
str = [str stringByReplacingCharactersInRange:[str rangeOfString:[NSString stringWithFormat:#"%# ",firstStringContainingSpace]] withString:firstStringContainingSpace];
Output:
str = #"IF_Distance(GET_Mi mi=km*1.4,STRING1,STRING2)";
You can remove first space by using following code:
First find space by using rangeOfString: and then remove by using stringByReplacingCharactersInRange:withString: method.
Like,
NSString *str = #"IF_Distance (GET_Mi mi=km*1.4,STRING1,STRING2)";
NSString *strSpace = #" ";
NSRange range = [str rangeOfString:strSpace];
NSString *strFinal;
if (NSNotFound != range.location) {
strFinal = [str stringByReplacingCharactersInRange:range withString:#""];
}
If you are looking for some more universal way - this is the variant of it:
- (NSString *)removeWhitespaces:(NSString *)string {
NSMutableArray * stringComponents = [[string componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] mutableCopy];
NSString * fStringComponent = [stringComponents firstObject];
[stringComponents removeObject:fStringComponent];
return [fStringComponent stringByAppendingString:[stringComponents componentsJoinedByString:#" "]];
}
I have some NSString object, for example:
NSString *inputString1 = #"Name is \"Mark\"";
NSString *inputString2 = #"Name is \"Joe\"";
I need to extract Mark and Joe values substrings from input.
Are there any solutions?
Thank you, in advance.
NSString *firstName =
[[inputString1 componentsSeparatedByString:#"\""] objectAtIndex:1];
NSString *name = [[inputString componentsSeparatedByString:#" "] lastObject];
name = [name stringByReplacingOccurencesOfString:#"\"" withString:#""];
I want to place a string within a string. Basically in pseudo code:
"first part of string" + "(varying string)" + "third part of string"
How can I do this in objective-c? Is there a way to easily concatenate in obj-c? Thanks!
Yes, do
NSString *str = [NSString stringWithFormat: #"first part %# second part", varyingString];
For concatenation you can use stringByAppendingString
NSString *str = #"hello ";
str = [str stringByAppendingString:#"world"]; //str is now "hello world"
For multiple strings
NSString *varyingString1 = #"hello";
NSString *varyingString2 = #"world";
NSString *str = [NSString stringWithFormat: #"%# %#", varyingString1, varyingString2];
//str is now "hello world"
Variations on a theme:
NSString *varying = #"whatever it is";
NSString *final = [NSString stringWithFormat:#"first part %# third part", varying];
NSString *varying = #"whatever it is";
NSString *final = [[#"first part" stringByAppendingString:varying] stringByAppendingString:#"second part"];
NSMutableString *final = [NSMutableString stringWithString:#"first part"];
[final appendFormat:#"%# third part", varying];
NSMutableString *final = [NSMutableString stringWithString:#"first part"];
[final appendString:varying];
[final appendString:#"third part"];
NSString * varyingString = ...;
NSString * cat = [NSString stringWithFormat:#"%s%#%#",
"first part of string",
varyingString,
#"third part of string"];
or simply -[NSString stringByAppendingString:]
You would normally use -stringWithFormat here.
NSString *myString = [NSString stringWithFormat:#"%#%#%#", #"some text", stringVariable, #"some more text"];
Just do
NSString* newString=[NSString stringWithFormat:#"first part of string (%#) third part of string", #"foo"];
This gives you
#"first part of string (foo) third part of string"
Iam amazed that none of the top answers pointed out that under recent Objective-C versions (after they added literals), you can concatenate just like this:
#"first" #"second"
And it will result in:
#"firstsecond"
You can not use it with NSString objects, only with literals, but it can be useful in some cases.
simple one:
[[#"first" stringByAppendingString:#"second"] stringByAppendingString:#"third"];
if you have many STRINGS to Concatenate, you should use NSMutableString for better performance
I am adding string into a pickerView like this :
NSString *string = [NSString stringWithFormat:#"%# %#", xxx, xxx];
[pickerViewObjects addObject:string];
what i want to do is to hide the first part of the string, or of there's something to use like charachterAtIndex it will be useful because the first part of my string has a specific number of characters.
Use this method to get "(whitespaces) John"
NSString *string = #"Hello John";
NSUInteger spacePosition = [string rangeOfString:#" "].location;
NSMutableString *newString = [[NSMutableString alloc]init ];
for (int i=0; i<spacePosition; i++)
[newString appendString:#" "];
NSString *otherPartofString = [string substringFromIndex:(spacePosition)];
[newString appendString:otherPartofString];
NSLog(#"new String is '%#'",newString);
[newString release];
You can use [string substringWithRange:NSMakeRange(start, count)], that way you will only get a new string that you can use for displaying.
you can do like this:
find the position of space between two strings like this:
NSUInteger spacePosition = [string rangeOfString:#" "].location
then use:
NSString *otherPartofString = [string substringFromIndex:(spacePosition+1)];
I have a string like #"(256) 435-8115" or #"256-435-81-15". I need only the digits (this is a phone number). Is this possible? I haven't found an NSString method to do that.
I think there is much simpler way:
-(NSString*)getNumbersFromString:(NSString*)String{
NSArray* Array = [String componentsSeparatedByCharactersInSet:
[[NSCharacterSet decimalDigitCharacterSet] invertedSet]];
NSString* returnString = [Array componentsJoinedByString:#""];
return (returnString);
}
Input:
NSString *stringWithPhoneNumber=#"(256) 435-8115";
NSArray *plainNumbersArray=
[stringWithPhoneNumber componentsSeparatedByCharactersInSet:
[[NSCharacterSet decimalDigitCharacterSet]invertedSet]];
NSString *plainNumbers = [plainNumbersArray componentsJoinedByString:#""];
NSLog(#"plain number is : %#",plainNumbers);
OutPut:
plain number is : 2564358115
You can use stringByReplacingOccurrencesOfString: withString: to remove characters you don't want such as #"(" with #""