Android Question How to convert list to byte array

StarinschiAndrei · May 26, 2016

Hello,
I would like to create programmatically the following command :

B4X:

aStream.Write(Array As Byte (2,Asc("?"),Asc("s"),Asc("t"),3,Asc("3"),Asc("5")))

how can i convert a list to byte array ? i try this :

B4X:

Dim cmdSecv As List
    Dim b() As Byte
    cmdSecv.Initialize
cmdSecv.Add(2)
cmdSecv.Add(Asc("?"))
cmdSecv.Add(Asc("s"))
cmdSecv.Add(Asc("t"))
cmdSecv.Add(3)
cmdSecv.Add(Asc("3"))
cmdSecv.Add(Asc("5"))
    Log(cmdSecv)
'aStream.Write(Array As Byte (2,Asc("?"),Asc("s"),Asc("t"),3,Asc("3"),Asc("5")))
'b=cmdSecv
aStream.Write(Array As Byte (cmdSecv))

Erel · May 26, 2016

You can use this sub:

B4X:

Sub ListToBytes(list As List) As Byte()
   Dim b(list.Size) As Byte
   For i = 0 To list.Size - 1
     b(i) = list.Get(i)
   Next
   Return b
End Sub

B4X:

astream.Write(ListToBytes(cmdSecv))

StarinschiAndrei · May 26, 2016

Erel said:

You can use this sub:

B4X:

Sub ListToBytes(list As List) As Byte()
   Dim b(list.Size) As Byte
   For i = 0 To list.Size - 1
     b(i) = list.Get(i)
   Next
   Return b
End Sub

B4X:

astream.Write(ListToBytes(cmdSecv))

Thank you , it works

Android Question How to convert list to byte array

StarinschiAndrei

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Erel

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StarinschiAndrei

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Android Question How to convert list to byte array

StarinschiAndrei

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Erel

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