Hello,
In my app the user can select files and open them in the appropriate app (using
an ACTION_VIEW intent). I need to do some work on the data before giving it to
the other app. So I'm using a streaming solution : I've implemented a
ContentProvider that implements openTypedAssetFile and writeDataToPipe (this
method fills the output ParcelFileDescriptor created by openPipeHelper).
This works : I can open .pdf files, .txt files etc. The streaming seems
correct. I can open images usings 3-party apps. However when I open an image
using the Gallery, it doesn't work (Gallery shows a black screen), and I get
the following exception :
fail to open myfile.jpg
UriImage(21890): java.io.FileNotFoundException: Not a whole file
I had a look at the Gallery source (here) and I could see that the exception is
thrown here :
try {
if (MIME_TYPE_JPEG.equalsIgnoreCase(mContentType)) {
InputStream is = mApplication.getContentResolver()
.openInputStream(mUri);
mRotation = Exif.getOrientation(is);
Utils.closeSilently(is);
}
**mFileDescriptor = mApplication.getContentResolver()
.openFileDescriptor(mUri, "r");**
if (jc.isCancelled()) return STATE_INIT;
return STATE_DOWNLOADED;
} catch (FileNotFoundException e) {
Log.w(TAG, "fail to open: " + mUri, e);
return STATE_ERROR;
}
However, once in the Gallery app, if I select "Set as wallpaper", then I can
see my image, it is then well streamed. So the problem appears when Gallery
opens.
After a deeper look (in the ContentResolver code etc.) I couldn't understand
why it behaves this way. It seems that Gallery does not support streaming
files. Is that right ? Do you have any idea ? I really lost with that right now.
Thanks
Vincent
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
---
You received this message because you are subscribed to the Google Groups
"Android Developers" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
