Kotlin – Encode (Decode) File/Image to Base64
https://grokonez.com/kotlin/kotlin-encode-decode-fileimage-base64
For some purpose like transfering an image through RestfulAPI or saving an image to a DataBase, We need Encoder (Decode) the image to Base64. In the tutorial, JavaSampleApproach will guide you how to use Kotlin language for converting.
Note: Prepare an Image at folder 'C:\base64\image.jpg'
I. Kotlin Encode File/Image to Base64
fun encoder(filePath: String): String{
val bytes = File(filePath).readBytes()
val base64 = Base64.getEncoder().encodeToString(bytes)
return base64
}
II. Kotlin Decode Base64 to File/Image
fun decoder(base64Str: String, pathFile: String): Unit{
val imageByteArray = Base64.getDecoder().decode(base64Str)
File(pathFile).writeBytes(imageByteArray)
}
III. Full Sample
More at:
Kotlin – Encode (Decode) File/Image to Base64
https://grokonez.com/kotlin/kotlin-encode-decode-fileimage-base64
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