changing colour of a part of string objective c [duplicate] - objective-c

Question

This question already has answers here:
Are there any analogues of [NSString stringWithFormat:] for NSAttributedString
(4 answers)
Closed 6 years ago.
I have a string like this
NSString * string = [[NSString alloc]initwithformat: #"The current balance left is %# out of %#",leftAmount,totalAmount];
How can i change the colour of string recieved as %# without knowing the range of the recieved string.

Answer 1

Do something like this,
NSString *leftAmount = #"1000";
NSString *totalAmount = #"2000";
UIColor *color = [UIColor redColor];
NSDictionary *attrs = #{ NSForegroundColorAttributeName : color };
NSAttributedString *attrStr = [[NSAttributedString alloc] initWithString:leftAmount attributes:attrs];
NSAttributedString *attrStr1 = [[NSAttributedString alloc] initWithString:totalAmount attributes:attrs];
NSMutableAttributedString * string = [[NSMutableAttributedString alloc] initWithString:#"The current balance left is "];
[string appendAttributedString:attrStr];
NSMutableAttributedString * string1 = [[NSMutableAttributedString alloc] initWithString:#" out of "];
[string1 appendAttributedString:attrStr1];
[string appendAttributedString:string1];
NSLog(#"Your Full String - %#", string);
Hope this will help you.

Answer 2

do something like this,
NSString *leftAmount,*totalAmount;
leftAmount = #"1000";
totalAmount = #"2000";
NSString * string = [NSString stringWithFormat:#"The current balance left is %# out of %#",leftAmount,totalAmount];
NSDictionary *attribs = #{
NSForegroundColorAttributeName: [UIColor blueColor],
NSFontAttributeName: [UIFont systemFontOfSize:12]
};
NSMutableAttributedString *attributedText =
[[NSMutableAttributedString alloc] initWithString:string
attributes:attribs];
UIColor *grayColor = [UIColor colorWithRed:186.0f/255.0f green:186.0f/255.0f blue:186.0f/255.0f alpha:1];
NSRange leftAmountTextRange = [string rangeOfString:leftAmount];
[attributedText setAttributes:#{NSForegroundColorAttributeName:grayColor}
range:leftAmountTextRange];
It'll also calculate the dynamic data value range.
I hope it will helps you,
Thanks.