Binary Converter object for the Binary Converter Android App on the SSaurel's Channel

BinaryConverter2.kt

package com.ssaurel.binaryconverter

object BinaryConverter {

    // ...

    fun binaryToString(binary:String) : String {
        if (!isBinary(binary))
            return "Not a binary value";

        val chars = CharArray(binary.length / 8)
        var i = 0

        while (i < binary.length) {
            val str = binary.substring(i, i + 8)
            val nb = Integer.parseInt(str, 2)
            chars[i / 8] = nb.toChar()
            i += 8
        }

        return String(chars)
    }
    
    fun isBinary(txt:String?):Boolean {
        if (txt != null  &&  txt.length % 8 == 0) {
            for (c in txt.toCharArray()) {
                if (c != '0'  &&  c!= '1')
                    return false
            }

            return true
        }

        return false
    }
}