bitmap
Converts the Base64-encoded QR code content to a displayable Bitmap.
This method:
Extracts the Base64 data from the content string (after "base64,")
Decodes the Base64 string to a byte array
Converts the byte array to a Bitmap using BitmapFactory
Content Format
The method expects content to be in data URI format:
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...Content copied to clipboard
The substring after "base64," is extracted and decoded.
Return
A Bitmap representation of the QR code, or null if decoding fails