Problem in converting QByteArray to Qstring

[mazeemanwar]

QByteArray bytes = /*at start it having non ascii charcter */
QString string(bytes);
as a result i got empty string. what should i do now.
i used bytes to write bytes to write in text file there i find this (  Info OA new version with) when i remove these starting characters form bytes then above conversion works fine but i want to now what should i do to handle this as if i dont now where these non ascii characters are in bytes.

[mahbub_s60]

See the following example, I copied code example.
Also see the Qt doc for QString.

QByteArray payloaddata = record.payload();
QByteArray btadd = payloaddata.mid(2, 6);
QByteArray reverseaddress;
for(int i = 5; i>= 0; i--)
{
reverseaddress.append(btadd[i]);
}
ui->btaddress->setText(reverseaddress.toHex());

QByteArray btname = payloaddata.mid(10, payloaddata[8]-1);
//btname is byte array and we make a QString from it
QString myString(btname);
ui->btname->setText(myString);

[gnuton]

Hi,
if you get an empty string you have a '\0' char at beginning.
If you have a NULL char, the only option is to remove it using a QString::remove.
If that's not a NULL char the following static functions are what you need.
You have to chose those according to the codec used to encode the text.

Usually one of those function is enough to convert data to string:
QString fromAscii ( const char * str, int size = -1 )
QString fromLatin1 ( const char * str, int size = -1 )
QString fromLocal8Bit ( const char * str, int size = -1 )
QString fromRawData ( const QChar * unicode, int size )
QString fromStdString ( const std::string & str )
QString fromStdWString ( const std::wstring & str )
QString fromUcs4 ( const uint * unicode, int size = -1 )
QString fromUtf8 ( const char * str, int size = -1 )
QString fromUtf16 ( const ushort * unicode, int size = -1 )
QString fromWCharArray ( const wchar_t * string, int size = -1 )