Combining Spannable with String.format()

Question

Suppose you have the following string:

String s = \"The cold hand reaches for the %1$s %2$s Ellesse\'s\";
String old = \"old\"; 
String tan = \"tan\"; 
String fo         


        

Answer 1

I made simple Kotlin extension function that should solve String.format spanned issue:

fun Context.getStringSpanned(@StringRes resId: Int, vararg formatArgs: Any): Spanned {
    var lastArgIndex = 0
    val spannableStringBuilder = SpannableStringBuilder(getString(resId, *formatArgs))
    for (arg in formatArgs) {
        val argString = arg.toString()
        lastArgIndex = spannableStringBuilder.indexOf(argString, lastArgIndex)
        if (lastArgIndex != -1) {
            (arg as? CharSequence)?.let {
                spannableStringBuilder.replace(lastArgIndex, lastArgIndex + argString.length, it)
            }
            lastArgIndex += argString.length
        }
    }

    return spannableStringBuilder
}