Convert from String of ByteArray to String

Question

I am trying to convert string to UTF-8 and store it in shared preferences but after getting its value I can't convert string which contains byte array to string

var myString ="hello world"
var bytes :ByteArray = myString.toUtf8Bytes()    

value of Bytes // [104, 101, 108, 108, 111, 32, 109, 121, 32, 119, 111, 114, 108, 100]

var result :String =   bytes.contentToString()

value of result // "[104, 101, 108, 108, 111, 32, 109, 121, 32, 119, 111, 114, 108, 100]"

How can I get the value of myString from the result?

thanks in advance

Experimental, but see https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/decode-to-string.html — Slaw, Mar 25 '20 at 05:21
Does this answer your question? [Convert byte array to String](https://stackoverflow.com/questions/14950019/convert-byte-array-to-string) — MMG, Mar 25 '20 at 05:24
See here: https://stackoverflow.com/questions/14950019/convert-byte-array-to-string — MMG, Mar 25 '20 at 05:24
all this methods use bytearray as input , i want to use string of bytearray as input and get result string — Mohamed Ali, Mar 25 '20 at 14:39

score 0 · Answer 1 · answered Mar 25 '20 at 07:52

0

You can use String(byteArray) to convert ByteArray to 'String' in kotlin

    val str = "hello world."
    val byte = str.toByteArray(Charsets.UTF_8)
    val newStr = String(byte)
    assert(str == newStr)

answered Mar 25 '20 at 07:52

Mehdi Yari

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Note: it will use the platform's default charset, which may not be UTF-8. – Alexey Romanov Mar 25 '20 at 08:53
let say we have byte variable as String contains the value how you can get str in this case – Mohamed Ali Mar 25 '20 at 14:41
i have byteArray in String variable and i want to get its actual string Value – Mohamed Ali Mar 25 '20 at 15:41
for encode any byteArray to String and decode. you can use binary-to-text encoding algorithms like Base64, ASCII85 or etc... – Mehdi Yari Mar 26 '20 at 12:37

score 0 · Answer 2 · answered Mar 29 '20 at 21:30

0

i found the answer here , error was in the way in storing data in shared Preferences and way to get it from string:

Storing ByteArray in sharedPreferences

answered Mar 29 '20 at 21:30

Mohamed Ali

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2
9

Convert from String of ByteArray to String

2 Answers2