From an idea of the Great Peter ( https://www.b4x.com/android/forum/threads/base64-encode-decode-image-library.31031/ ) "...in attached the library for decoding base64 image stings, so I quickly put together this simple but effective base64 encode/decode images library for others to use..."
In version 1.13 also added the BaseAnyFileToString + Base64StringToAnyFile method. To convert any file to Base64.
The library is for B4X (Tested with B4J, B4A, B4i)
The Example Code:
Example Code B4A --> https://www.dropbox.com/s/mohtg21cnfvaj1p/CONVERTBMPTOCODE64B4.zip?dl=0
Example Code B4i --> https://www.dropbox.com/s/97x5hcexy9xgkm6/CONVERTBMPTOCODE64.zip?dl=0
Example Code B4J -->https://www.dropbox.com/s/888ic5l1m18f4d1/B4J-CONVERTBMPTOCODE64.zip?dl=0
In attachment library b4xlib
Have a nice day
Marco
18.04.2021
Rel. 1.13 --> Add Base64AnyFileToString
In version 1.13 also added the BaseAnyFileToString + Base64StringToAnyFile method. To convert any file to Base64.
The library is for B4X (Tested with B4J, B4A, B4i)
The Example Code:
B4X:
'File 653 kb
File.Copy(File.DirAssets, "653.jpg", File.DirInternal,"653.jpg")
Sleep(300)
'Image to Encode64
Dim base As String = Base64EncodeDecodeImage.Base64ImageToString(File.DirInternal,"653.jpg")
'Check if Valid Base64
If Base64EncodeDecodeImage.ValidBase64(base) Then
ImageView1.Bitmap = Base64EncodeDecodeImage.Base64StringToImage(base)
End If
Sleep(2000)
'Convert without Dir / File as request #8
Dim bitmap1 As B4XBitmap = ImageView1.Bitmap
Dim base As String = Base64EncodeDecodeImage.Base64ImageToString2(bitmap1)
ImageView2.Bitmap = Base64EncodeDecodeImage.Base64StringToImage(base)
'Any File to Encode64
Dim pdf_base64 As String = Base64EncodeDecodeImage.Base64AnyFileToString(File.DirApp, "example_5_pages.pdf")
'Check if Valid Base64
If Base64EncodeDecodeImage.ValidBase64(pdf_base64) Then
Base64EncodeDecodeImage.Base64StringToAnyFile(pdf_base64, File.DirApp, "convert.pdf")
End IfExample Code B4A --> https://www.dropbox.com/s/mohtg21cnfvaj1p/CONVERTBMPTOCODE64B4.zip?dl=0
Example Code B4i --> https://www.dropbox.com/s/97x5hcexy9xgkm6/CONVERTBMPTOCODE64.zip?dl=0
Example Code B4J -->https://www.dropbox.com/s/888ic5l1m18f4d1/B4J-CONVERTBMPTOCODE64.zip?dl=0
In attachment library b4xlib
Have a nice day
Marco
18.04.2021
Rel. 1.13 --> Add Base64AnyFileToString
Attachments
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