I want to have a percentage sign in my string after a digit. Something like this: 75%.
How can I have this done? I tried:
[NSString stringWithFormat:#"%d\%", someDigit];
But it didn't work for me.
The code for percent sign in NSString format is %%. This is also true for NSLog() and printf() formats.
The escape code for a percent sign is "%%", so your code would look like this
[NSString stringWithFormat:#"%d%%", someDigit];
Also, all the other format specifiers can be found at Conceptual Strings Articles
If that helps in some cases, it is possible to use the unicode character:
NSLog(#"Test percentage \uFF05");
The accepted answer doesn't work for UILocalNotification. For some reason, %%%% (4 percent signs) or the unicode character '\uFF05' only work for this.
So to recap, when formatting your string you may use %%. However, if your string is part of a UILocalNotification, use %%%% or \uFF05.
seems if %% followed with a %#, the NSString will go to some strange codes
try this and this worked for me
NSString *str = [NSString stringWithFormat:#"%#%#%#", #"%%",
[textfield text], #"%%"];
uese following code.
NSString *searchText = #"Bhupi"
NSString *formatedSearchText = [NSString stringWithFormat:#"%%%#%%",searchText];
will output: %Bhupi%
iOS 9.2.1, Xcode 7.2.1, ARC enabled
You can always append the '%' by itself without any other format specifiers in the string you are appending, like so...
int test = 10;
NSString *stringTest = [NSString stringWithFormat:#"%d", test];
stringTest = [stringTest stringByAppendingString:#"%"];
NSLog(#"%#", stringTest);
For iOS7.0+
To expand the answer to other characters that might cause you conflict you may choose to use:
- (NSString *)stringByAddingPercentEncodingWithAllowedCharacters:(NSCharacterSet *)allowedCharacters
Written out step by step it looks like this:
int test = 10;
NSString *stringTest = [NSString stringWithFormat:#"%d", test];
stringTest = [[stringTest stringByAppendingString:#"%"]
stringByAddingPercentEncodingWithAllowedCharacters:
[NSCharacterSet alphanumericCharacterSet]];
stringTest = [stringTest stringByRemovingPercentEncoding];
NSLog(#"percent value of test: %#", stringTest);
Or short hand:
NSLog(#"percent value of test: %#", [[[[NSString stringWithFormat:#"%d", test]
stringByAppendingString:#"%"] stringByAddingPercentEncodingWithAllowedCharacters:
[NSCharacterSet alphanumericCharacterSet]] stringByRemovingPercentEncoding]);
Thanks to all the original contributors. Hope this helps. Cheers!
Related
I'm doing this to encode my URL in this way,
but its not working,
i got the result in NSLog but its the same url nothing is changing.
Please help me to sort this issue.
below is my code :
NSString *unencodedUrlString =
[#"http://www.demii.com/demo/dooponz/admin/index.php/chat/new_message/4/1/you/2,7"
stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(#" %#", unencodedUrlString);
Thanks in advance
The comma is a legal URL character, therefore stringByAddingPercentEscapesUsingEncoding leaves "2,7" as it is and does not replace it by "2%2C7".
If you want the comma to be replaced by a percent escape (as I understand from your
comment to the question), you can use CFURLCreateStringByAddingPercentEscapes
instead:
NSString *str = #"http://www.demii.com/demo/dooponz/admin/index.php/chat/new_message/4/1/you/2,7";
NSString *encoded = CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
(__bridge CFStringRef)(str), NULL, CFSTR(","), kCFStringEncodingUTF8));
NSLog(#"%#", encoded);
Output:
http://www.demii.com/demo/dooponz/admin/index.php/chat/new_message/4/1/you/2%2C7
The fourth parameter CFSTR(",") specifies that the comma should be replaced by
a percent escape even if it is a legal URL character.
Use this
NSString *str = [NSString stringWithFormat:#"http://www.demii.com/demo/dooponz/admin/index.php/chat/new_message/4/1/you/2,7"];
NSString *path = [str stringByReplacingOccurrencesOfString:#"," withString:#"/"];
NSLog(#"%#",path);
This will do nothing but will make , to /.
I have seen this question that talks about getting the last part of a NSString.
I require a slight variation on this.
How do I get everything after the http://
Would be good if it was almost as simple as 1 line of code:-)
Cheers
NSString *str = #"http://www.abc.com/news/read/welcome-new-gig/03276";
str = [str stringByReplacingOccurrencesOfString:#"http://"
withString:#""];
hope this will help you.....
substringFromIndex:. You'd be wise to do some bounds checking too. Also, I'd advice taking a look at the documentation before asking a question.
NSString *originalString = #"http://google.com";
NSString *substring = [originalString stringByReplacingOccurrencesOfString:#"http://" withString:#""];
May want to actually check that you are using "http://" at the front and not replace it in every instance. How about this:
if([[str substringToIndex:#"http://".length] isEqualToString:#"http://"])
str = [str substringFromIndex:#"http://".length];
That would be more robust and will actually make sure it starts with "http://" and not replace every instance of it.
Hi I am having a string as G531 Other Dough Products.
Here I want only Other Dough Products, reply me with code.
I tried with substring but that is not working.
Thanks in advance .
You don't actually say what you tried but substringFromIndex:
NSString *str = #"G531 Other Dough Products";
str = [str substringFromIndex:5];
should do the trick.
You'll probably find that you want to use 5 unless you want the leading space in your new string.
NSString* s = [#"G531 Other Dough Products" substringFromIndex:5];
Try using "substringFromIndex" (see documentation)
He He, you can also do this as below,
NSString * newString = [NSString stringWithCString:(const char*)&"G531 Other Dough Products"[5] encoding:NSUTF8StringEncoding];
NSLog(#"%#", newString);
I want to decode my string. I have used parsing and get a string from RSS feed. In a string these special characters are not allowed &,<,> in my app. In server side encoding those characters and give it to the string. So now i got the string like,
Actual String : <Tom&Jerry> (only these characters are not allowed in node data & < >).
After Encoding: %3CTom%26Jerry%3E.
But i need to display the string is
<Tom&Jerry>
So how can i decode the string.
Please help me out.
Thanks.
Use the -stringByReplacingPercentEscapesUsingEncoding: method.
[#"%3CTom%26Jerry%3E"
stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
Look for
- (NSString *)stringByReplacingPercentEscapesUsingEncoding:(NSStringEncoding)encoding
Or by example:
NSString *input = #"Hello%20World";
NSString *output = [text stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(#"%# becomes %#",input,output);
Log: Hello%20World becomes Hello World
I got the answer and my code is,
NSString *currentString =#"%3CTom%26Jerry%3E";
NSString * decodeString = [currentString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
lblTitle.text = decodeString;
Thanks.
How to connect string "Hello" and string "World" to "HelloWorld"? Looks like "+" doesn't work.
NSString *string = [NSString stringWithFormat:#"%#%#", #"Hello", #"World"];
NSLog(#"%#", string);
That should do the trick, although I am sure there is a better way to do this, just out of memory. I also must say this is untested so forgive me. Best thing is to find the stringWithFormat documentation for NSString.
How about:
NSString *hello = #"Hello";
NSString *world = #"World";
NSString *helloWorld = [hello stringByAppendingString:world];
If you have two literal strings, you can simply code:
NSString * myString = #"Hello" #"World";
This is a useful technique to break up long literal strings within your code.
However, this will not work with string variables, where you'd want to use stringWithFormat: or stringByAppendingString:, as mentioned in the other responses.
there's always NSMutableString..
NSMutableString *myString = [NSMutableString stringWithString:#"Hello"];
[myString appendString: #"World"];
Note:
NSMutableString *myString = #"Hello"; // won't work, literal strings aren't mutable
t3.text=[t1.text stringByAppendingString:t2.text];
Bill, I like yout simple solution and I'd like to note that you can also eliminate the space between the two NSStrings:
NSString * myString = #"Hello"#"World";