It is possibly because the sharing app (FB, twitter, etc) may not have permissions to read the image.
Google's document says:
The receiving application needs permission to access the data the Uri points to. The recommended ways to do this are:
http://developer.android.com/training/sharing/send.html
I am not sure the sharing apps have permissions to read an image in the bundle of our apps. But my files saved in
Activity.getFilesDir()
cannot be read. As suggested in the above link, we may consider to store images in the MediaStore, where the sharing apps have permissions to read.
Update1:
The following is working code to share image with text in Android 4.4.
Bitmap bm = BitmapFactory.decodeFile(file.getPath());
intent.putExtra(Intent.EXTRA_TEXT, Constant.SHARE_MESSAGE
+ Constant.SHARE_URL);
String url= MediaStore.Images.Media.insertImage(this.getContentResolver(), bm, "title", "description");
intent.putExtra(Intent.EXTRA_STREAM, Uri.parse(url));
intent.setType("image/*");
startActivity(Intent.createChooser(intent, "Share Image"));
The side effect is we add an image in the MediaStore.