B4R Question dynamic string

[peacemaker]

Hi, All

I asked in vain here: https://www.b4x.com/android/forum/threads/why-strange-strings.163520/ and today found that if the web-server name is static string - no trouble !
But if to use the variable string that is got by such sub - it's messed interface:

    UI.begin(APname, "", "", 80)

Public Sub APname As String
Return JoinStrings(Array As String(title, "_", Main.bc.HexFromBytes(MacArray)))
End Sub

like:

Like got from the heap memory, where already placed previous strings (JSON of HTTP requests).
But why ?

 

[thetrueman]

I think the following link has your answer.

Strings and Bytes

Strings and Bytes

B4R strings are different than in other B4X tools. The reasons for these differences are: 1. Very limited memory. 2. Lack of Unicode encoders. A String object in B4R is the same as C char* string. It is an array of bytes with an additional zero byte at the end. The requirement of the last zero...

www.b4x.com