Android Question how to control input text format?i need in put HEX code.

[hears]

if user input wrong format,here will have a massage box.tell he input wrong,how to know user input is in HEX format ?

 

[Erel]

Try
 Dim bc As ByteConverter
 bc.HexToBytes(EditText1.Text)
Catch
 Log("bad input")
End Try

 

[hears]

Try
 Dim bc As ByteConverter
 bc.HexToBytes(EditText1.Text)
Catch
 Log("bad input")
End Try

thank you ,this code work good