android - 如何使用Algolia使用ArrayList 和Date类型的KotlinX序列化

Question

我正在尝试将Algolia的kotlinx serialization用于ArrayList<String>和Date类型，但是我无法弄清serialization技术。任何指针，因为我采取了Algolia不推荐的手动方式。

Answer 1

Check this one

kotlinx.serialization

import kotlinx.serialization.*
import kotlinx.serialization.internal.*
import java.util.*

@Serializable
class DateWrapper(val date: Date)

@Serializer(forClass = Date::class)
object DateSerializer: KSerializer<Date> {
    private val df: DateFormat = SimpleDateFormat("dd/MM/yyyy HH:mm:ss.SSS")

    override fun save(output: KOutput, obj: Date) {
        output.writeStringValue(df.format(obj))
    }

    override fun load(input: KInput): Date {
        return df.parse(input.readStringValue())
    }

    override val serialClassDesc: KSerialClassDesc = SerialClassDescImpl("Date")
}

Register it at startup of your application:

kotlinx.serialization.registerSerializer("java.util.Date", DateSerializer)

JSON.stringify(DateWrapper(Date()))将为您提供{“date”:[“Date”，“10/11/2019 12:50:10.665”]}