Android Question Base64 encode/decode image library error

[Alberto Michelis]

Hi, trying to test this library
https://www.b4x.com/android/forum/threads/base64-encode-decode-image-library.31031/
Using a button and a text field to see the resulting blob2base64.
Im getting an error in the folowing code:

Sub btnVerBlob64_Click
    Log("Pasando " & TesteoPHP.ViendoImagen & " a base64")
    Dim B64Str As String = Base64Con.EncodeFromImage(File.DirDefaultExternal, TesteoPHP.ViendoImagen)
    txtBlob64.Text = B64Str
End Sub

TesteoPHP.ViendoImagen is the mage name and it really exists.

The error is :
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String anywheresoftware.b4a.objects.StringUtils.EncodeBase64(byte[])' on a null object reference

 

[KMatle]

Check the filename (case sensitive)

 

[Erel]

You don't need to use a library other than StringUtils.

Get the bytes and convert to image: https://www.b4x.com/android/forum/threads/b4x-bytes-to-file.70111/#post-445167

 

[GabrielQ]

You don't need to use a library other than StringUtils.

Get the bytes and convert to image: https://www.b4x.com/android/forum/threads/b4x-bytes-to-file.70111/#post-445167

Hi! I've the same error... but, Alberto and me needs past image to base64 string, not bytes to image.
TKHS!

 

[Erel]

Convert the image to bytes: https://www.b4x.com/android/forum/threads/b4x-bytes-to-file.70111/#post-445167
Convert the bytes to base64 string with StringUtils.EncodeBase64.

 

[GabrielQ]

Convert the image to bytes: https://www.b4x.com/android/forum/threads/b4x-bytes-to-file.70111/#post-445167
Convert the bytes to base64 string with StringUtils.EncodeBase64.

Hi Erel, thks !!! I can with:

Dim auxStringUtils As StringUtils
auxStringUtils.EncodeBase64(Bit.InputStreamToBytes(File.OpenInput(genDirectorioCamara, "me_picture.jpg")))

Regards !!!