iOS. Pluralization. Stringdict with format that contains 2 int arguments

Question

My question is similar to How to add regular string placeholders to a translated plurals .stringdict in swift ios but I am trying to understand if it is possible to pass 2 i

Answer 1

One format is sufficient. You can use multiple placeholders in the NSStringLocalizedFormatKey entry, and for each placeholder a separate dictionary with the plural rule. Example:

    
        apples_and_pears
        
            NSStringLocalizedFormatKey
            %#@num_apples@ : %#@num_pears@
            num_apples
            
                NSStringFormatSpecTypeKey
                NSStringPluralRuleType
                NSStringFormatValueTypeKey
                ld
                zero
                no apple
                one
                1 apple
                other
                %ld apples
            
            num_pears
            
                NSStringFormatSpecTypeKey
                NSStringPluralRuleType
                NSStringFormatValueTypeKey
                ld
                zero
                no pear
                one
                1 pear
                other
                %ld pears
            
        
    

Usage:

let apples = 1
let pears = 3
let format = NSLocalizedString("apples_and_pears", comment: "")
let applesAndPears = String.localizedStringWithFormat(format, apples, pears)
print(applesAndPears) // 1 apple : 3 pears

This can be combined with positional parameters: if the format is changed to

        NSStringLocalizedFormatKey
        %2$#@num_pears@ : %1$#@num_apples@

then the output becomes “3 pears : 1 apple”.