android - using resources drawable in content provider
- by Russ Wheeler
I am trying to pass back an image through a content provider in a separate app. I have two apps, one with the activity in (app a), the other with content provider (app b)
I have app a reading an image off my SD card via app b using the following code.
App a:
public void but_update(View view)
{
ContentResolver resolver = getContentResolver();
Uri uri = Uri.parse("content://com.jash.cp_source_two.provider/note/1");
InputStream inStream = null;
try
{
inStream = resolver.openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(inStream);
image = (ImageView) findViewById(R.id.imageView1);
image.setImageBitmap(bitmap);
}
catch(FileNotFoundException e)
{
Toast.makeText(getBaseContext(), "error = "+e, Toast.LENGTH_LONG).show();
}
finally {
if (inStream != null) {
try {
inStream.close();
} catch (IOException e) {
Log.e("test", "could not close stream", e);
}
}
}
};
App b:
@Override
public ParcelFileDescriptor openFile(Uri uri, String mode)
throws FileNotFoundException {
try
{
File path = new File(Environment.getExternalStorageDirectory().getAbsolutePath(),"pic2.png");
return ParcelFileDescriptor.open(path,ParcelFileDescriptor.MODE_READ_ONLY);
}
catch (FileNotFoundException e)
{
Log.i("r", "File not found");
throw new FileNotFoundException();
}
}
In app a I am able to display an image from app a's resources folder, using setImageURi and constructing a URI using the following code.
int id = R.drawable.a2;
Resources resources = getBaseContext().getResources();
Uri uri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" +
resources.getResourcePackageName(id) + '/' +
resources.getResourceTypeName(id) + '/' +
resources.getResourceEntryName(id) );
image = (ImageView) findViewById(R.id.imageView1);
image.setImageURI(uri);
However, if I try to do the same in app b (read from app b's resources folder rather than the image on the SD card) it doesn't work, saying it can't find the file, even though I am creating the path of the file from the resource, so it is definitely there.
Any ideas? Does it restrict sending resources over the content provider somehow?
P.S. I also got an error when I tried to create the file with
File path = new File(uri); saying 'there is no applicable constructor to '(android.net.Uri)' though http://developer.android.com/reference/java/io/File.html#File(java.net.URI) Seems to think it's possible...unless java.net.URI is different to android.net.URI, in which case can I convert them?
Thanks
Russ
