I suggest you use FileSystemStorage and save the files to the app home
directory which is a special case on Android. Things like attachments etc.
Work better when they're stored in the app home folder.
On Wednesday, February 10, 2021 at 7:24:01 PM UTC+2 P5music wrote:
> My CodenameApp can export some data by sending it by e-mail, in the form
> of json files.
> This is the method:
>
> public static void sendMyJsonFile(Form form,String fileName,String
> JSONText)
> {
> File file;
>
> try {
>
> file=new File("temp");
> if (!file.exists()) file.mkdir();
> File[] files=file.listFiles();
> for (int i=0;i<files.length;i++)
> {
> files[i].delete();
> }
>
> file=new File("temp/"+fileName+".ext");
> System.out.println("fileName "+file.getAbsolutePath());
> OutputStream os =
> Storage.getInstance().createOutputStream(file.getAbsolutePath());
> os.write(JSONText.getBytes("UTF-8"));
> os.flush();
> os.close();
> } catch (IOException e) {
> return;
> }
> Message m = new Message("");
> m.getAttachments().put(file.getAbsolutePath(), "text/plain");
> System.out.println("attachments "+m.getAttachments().size());
> getInstance().sendMessage(new String[] {""}, file.getName(), m);
>
> }
>
> A temp folder is created if it does not exist yet.
> Then its content is deleted it it contains files.
>
> The file is created and sent.
>
> An alternate method version can use
> file=new File(tempFolder,fileName+".ext");
> but it is the same, please read the following:
>
> I am testing it in the simulator and on Android device.
> I can say that:
> 1-the file is not attached at all on Android and also on Windows10 (the
> mail app opens and composes the message).
> 2-on the simulator the temp folder is created in .cn1\ but the files are
> outside, so they are not deleted the next time the method is called.
> Maybe it is also the reason for the file not being attached.
> Paths seem to be correct.
> log:
> fileName file://home/temp/prova3.ext
> attachments 1
> sending message to <- this is not from my app
>
> No errors are issued.
>
> What's wrong?
> Thanks in advance
>
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