What could be wrong with this formatting code. The same input for `format` works for JVM and Android...

# compose-ios

[Rafs]

What could be wrong with this formatting code. The same input for format works for JVM and Android but throws the exception on iOS

actual fun LocalDate.format(format: String): String {
    val formatter = NSDateFormatter().apply { dateFormat = format }

    return formatter.stringFromDate(
        toNSDateComponents().date
            ?: throw IllegalStateException("Error converting Kotlin LocalDate to NSDate")
    )
}

[tylerwilson]

What is the format you are trying to use. It is possible it is not compatible with iOS, since the formats are not always the same cross platform.

[Rafs]

I'm just using dd.MM.yy as the pattern. What I ended up doing is converting the date to an Instant and calling toNSDate() on it. toNSDateComponents().date keeps on returning null

actual fun LocalDate.format(format: String): String {
    val formatter = NSDateFormatter().apply {
        dateFormat = format
        timeZone = TimeZone.currentSystemDefault().toNSTimeZone()
    }

    return formatter.stringFromDate(
        atStartOfDayIn(TimeZone.currentSystemDefault()).toNSDate()
    )
}

[Shoaib khalid]

@Rafs any update on this?

[Rafs]

Are you facing a similar problem @Shoaib khalid? This is how I solved it.

actual fun LocalDate.format(format: String): String {
    val formatter = NSDateFormatter().apply {
        dateFormat = format
        timeZone = TimeZone.currentSystemDefault().toNSTimeZone()
    }

    return formatter.stringFromDate(
        atStartOfDayIn(TimeZone.currentSystemDefault()).toNSDate(),
    )
}

[Shoaib khalid]

I've no't implemented anything yet. I was just looking around how can i format DateTime. would be great if you please share expect/actual for both platforms. thank you

[Rafs]

This is how the expect looks like

expect fun LocalDate.format(format: String): String

[Shoaib khalid]

Great, thanks buddy

[Rafs]

For Android and JVM,

actual fun LocalDate.format(format: String): String {
    return DateTimeFormatter.ofPattern(format).format(this.toJavaLocalDate())
}

[Shoaib khalid]

@Rafs LocalDate isn't found.

[Shoaib khalid]

with expect.

[Rafs]

You need to import kotlinx datetime dependency

[Shoaib khalid]

ahh in common main. right?

[Rafs]

Yeah