I have an application that needs to Base64 decode on the fly a bitmap image
& render it on the ImageView.
I am using a custom content provider to do this. When the openFile method
is called - I in this case chose to use a normal non-encoded file for
testing purpose.
Now I create a MemoryFile from the imagefile (after decoding) & have to
return a ParcelFileDescriptor of the MemoryFile.
I tried reflection & got the FileDescriptor of the MemoryFile but am unable
to get the ParcelFileDescriptor from the FileDescriptor
I tried the dup, adoptFD methods but the ParcelFileDescriptor was invalid.
Kindly help me out here.
Cheers
Indru
public ParcelFileDescriptor openFile(Uri uri, String mode)
throws FileNotFoundException {
File openFile = new File(uri.toString());
try {
MemoryFile file = new MemoryFile(null, (int) openFile.length());
ParcelFileDescriptor pfd = ParcelFileDescriptor.open(openFile,
ParcelFileDescriptor.MODE_READ_ONLY);
AutoCloseInputStream in = new AutoCloseInputStream(pfd);
byte[] buffer = new byte[in.available()];
//Should do decoding here - skipped to test the code
in.read(buffer, 0, buffer.length);
file.writeBytes(buffer, 0, 0, buffer.length);
Method getFileDescriptorMethod = file.getClass().getMethod(
"getFileDescriptor");
FileDescriptor out = (FileDescriptor) getFileDescriptorMethod
.invoke(file);
// I have the FD, now how to return a PFD?? Any ideas? dup & adoptFD dont
work - the PFD is invalid.
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