Android Question HEX to byte array

Tayfur · Feb 13, 2014

Hello;

I have data hex.

B4X:

dim data as string = "FFAACC1237A1D676"
dim bytes() as byte
bytes=data.tobyte '......(like tihs.)........

how is convert? i cant add bytearray.

thank you for you feedback

ernschd · Feb 13, 2014

With the ByteConverter library:

B4X:

Dim b As ByteConverter
bytes = b.HexToBytes(Data)

Tayfur · Feb 13, 2014

ernschd said:
With the ByteConverter library:

B4X:

Dim b As ByteConverter bytes = b.HexToBytes(Data)

I want to things.

I convert to image file

B4X:

'****** THIS CODE VB.NET on PC ***********************
Dim bytes = My.Computer.FileSystem.ReadAllBytes("X:\image.jpg")
        path = ""
        For i = 0 To bytes.Length - 1
            If Conversion.Hex(bytes(i)).ToString.Length = 1 Then
                path = path & "0" & Conversion.Hex(bytes(i)) '.ToString
            Else
                path = path & Conversion.Hex(bytes(i)) '.ToString
            End If
            boy = path.Length
        Next i
        send_to_phone(path)

I recived HEx data from server.

After I save to phone image file "test.jpg"

I cant save image. (I revice all hex data from server "data ="FF25AB1678A1B5C5.......")

How can I save it image file

Erel · Feb 13, 2014

I recommend you to encode the bytes with Base64 string instead. It will be more efficient. You can then decode it with StringUtils.

BaGRoS · Sep 3, 2017

I have similar problem
Now I have

B4X:

Private address(8) As Byte = Array As Byte(0x28, 0xFF, 0x8F, 0xB1, 0x68, 0x14, 0x03, 0x47)

how convert 28FF8FB168140347 to address()?

OliverA · Sep 3, 2017

BaGRoS said:
how convert 28FF8FB168140347 to address()

Is 28FF8FB168140347 a string? If so, follow @ernschd's example.

Erel · Sep 4, 2017

Please start a new thread for your question.

Android Question HEX to byte array

Tayfur

Well-Known Member

ernschd

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Tayfur

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Erel

B4X founder

BaGRoS

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OliverA

Expert

Erel

B4X founder

Android Question HEX to byte array

Tayfur

Well-Known Member

ernschd

Active Member

Tayfur

Well-Known Member

Erel

B4X founder

BaGRoS

Active Member

OliverA

Expert

Erel

B4X founder

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