Apps Send an Image, ACTION_SEND

Code (Text):

1.                 MapImage Img = (MapImage) ((Button) v).getTag();
2.                 ByteArrayOutputStream Os = new ByteArrayOutputStream();
3.                 Img.Bm.compress(CompressFormat.JPEG, 100, Os);
4.                 byte[] ImgBytes = null;
5.                 try {
6.                     Os.flush();
7.                     ImgBytes = Os.toByteArray();
8.                     Os.close();
9.                 } catch (IOException e) {}
10.                 Intent i = new Intent(Intent.ACTION_SEND) ;
11.                 i.setType("image/jpeg");
12.                 i.putExtra(Intent.EXTRA_STREAM, ImgBytes);
13.                 MyMv.getContext().startActivity(Intent.createChooser(i,"Send Image To:"));

The above code opens the Chooser dialog and shows all my option when when I click on any, they either throw an error (gmail), give a message saying "file not available" (picasa), or in SMS's case, opens a new message but no picture is shown.

Most of the examples I saw for sending an image using the chooser dialog are sending from a file or stored content somewhere (putExtra(EXTRA_STREAM, Uri)). Does anyone know the correct way to send when all we have is a Bitmap?

 

Ok, so I gave in and tried saving the image to the sdcar first anf then creating a file URI using the following code

Code (Text):

1.  
2.  
3.     // Omitted Class ...
4.  
5.     public Uri getThumbFileUri() {
6.         if (getThumbBm() == null) return null;
7.         File F = new File("file:///sdcard/MyProject/Images/Thumbs/" + PicId + ".jpg");
8.         Uri U = Uri.fromFile(F);
9.         return U;
10.     }
11.  

Code (Text):

1.  
2.  
3.      // New Chooser Code ...
4.  
5.                 MapImage Img = (MapImage) ((Button) v).getTag();
6.                 Intent i = new Intent(Intent.ACTION_SEND);
7.                 i.setType("image/jpeg");
8.                 i.putExtra(Intent.EXTRA_STREAM, Img.getThumbFileUri());
9.                 MyMv.getContext().startActivity(Intent.createChooser(i,"Send Image To:"));
10.  
11.  

I still get the Chooser dialog with all the same options of my previous post but when I select a send method I now get different errors

Gmail: Opens a new email showing an attachment of the file I am trying to attach with the same KB size, but when I check the email from them receiver, there is no attachment.

Messager: Shows an error "You cannot add this picture to your message"

Picasa: Shows an error "File not available"




Does that help any?

 

I tried it and it worked so I guess it gets me somewhere. However, I do not want to insert the image into the user's pictures, so is there a way to remove it once done?

 

Ok, I figured it out. Your GRANT_READ.. permission got me thinking. I use the Java.Io to save my cached images to the SdCard and I'm passing the Uri to that file to the Intent. I guess it sandboxed my sdcard files so the intent was unable to read them, even if I gave it the GRANT_READ..

When I converted to using Context.openFileInput() to write the the file everything worked as expected.

Still, out of curiosity, it would be nice to know how to save files to the SdCard so that other Intents are able to read them.

 

Sure,

I first save a Bitmap to the phone like so:

Code (Text):

1.  
2. FileOutputStream Os = getAppContext().openFileOutput("Img" + _PicId + ".jpg", Context.MODE_WORLD_READABLE);
3. Bm.compress(Bitmap.CompressFormat.JPEG, 100, Os);
4. Os.close();
5.  

Then I get a Uri to send to the Chooser intent

Code (Text):

1.  
2.                 File F = getAppContext().getFileStreamPath("Img" + _PicId + ".jpg");
3.                 Uri U = Uri.fromFile(F);
4.  
5.                 Intent i = new Intent(Intent.ACTION_SEND);
6.                 i.setType("image/jpg");
7.                 i.putExtra(Intent.EXTRA_STREAM, U);
8.                 getContext().startActivity(Intent.createChooser(i,"Send Image To:"));
9.