You will have a strange long string usually with a long number in the
middle.
On Sunday, December 20, 2020 at 4:22:54 PM UTC+2 P5music wrote:
> I see. I would like to know what form has the real name of the temp file,
> if you have seen it sometimes.
> I could use this instruction:
> file=File.createTempFile(fileName"+"_",".ext");
> to have something resembling a user-created file name. It will have a
> strange string in the middle I suppose, like:
> myfilename_vjh4v444vjhv4j45445h4j5.ext
> Is it right?
> Regards
>
> Il giorno domenica 20 dicembre 2020 alle 02:58:03 UTC+1 Shai Almog ha
> scritto:
>
>> There's a minimum length to the temp file prefix/sufix. As far as I
>> recall you can't create the file with blank prefix/suffix but I might be
>> wrong.
>>
>> It very likely won't work and I would avoid mixing temp files and regular
>> files. Temp files can reside on a different volume and renaming them to a
>> regular file might not work.
>>
>> On Saturday, December 19, 2020 at 5:20:09 PM UTC+2 P5music wrote:
>>
>>> Is this going to be working as described?
>>> ....
>>> ....
>>> try {
>>> file=File.createTempFile("","");
>>> String
>>> path=file.getAbsolutePath().substring(0,file.getAbsolutePath().lastIndexOf("/"));
>>> File oldFile=new File(path+"/"+fileName+".ext");
>>> if (oldFile.exists()) {
>>> oldFile.delete();
>>> file=File.createTempFile("","");
>>> }
>>>
>>> file.renameTo(oldFile);
>>>
>>> OutputStream os = Storage.getInstance
>>> ().createOutputStream(file.getAbsolutePath());
>>> ....
>>> ....
>>> Il giorno sabato 19 dicembre 2020 alle 06:54:54 UTC+1 Shai Almog ha
>>> scritto:
>>>
>>>> Yes but then you might as well just create a non-temporary file with a
>>>> specific name and clear it when the app exits or periodically. You can
>>>> create a folder to store these files and wipe it occasionally.
>>>>
>>>> On Friday, December 18, 2020 at 10:47:40 AM UTC+2 P5music wrote:
>>>>
>>>>> Ok
>>>>> Can the temporary file be renamed with the entered filename? This is
>>>>> for the user to see and attach a file with a meaningful name.
>>>>> Thanks
>>>>>
>>>>> Il giorno venerdì 18 dicembre 2020 alle 05:53:46 UTC+1 Shai Almog ha
>>>>> scritto:
>>>>>
>>>>>> No. That's not a file name. That's a prefix and suffix. The actual
>>>>>> name would be longer.
>>>>>>
>>>>>> On Thursday, December 17, 2020 at 11:06:00 AM UTC+2 P5music wrote:
>>>>>>
>>>>>>>
>>>>>>> I want to know whether the creation of a temp file with that method
>>>>>>> will give an error if the file already exists with that file name.
>>>>>>> I think that the file name is not random because it is a parameter
>>>>>>> of the createTempFile method, is it?
>>>>>>>
>>>>>>> Il giorno giovedì 17 dicembre 2020 alle 04:35:55 UTC+1 Shai Almog ha
>>>>>>> scritto:
>>>>>>>
>>>>>>>> You need to save a reference to the created temp file to check if
>>>>>>>> it exists as the name is random.
>>>>>>>>
>>>>>>>> On Wednesday, December 16, 2020 at 12:52:09 PM UTC+2 P5music wrote:
>>>>>>>>
>>>>>>>>> Maybe what I am saying does not make sense, but if I create the
>>>>>>>>> temp file I am already going to get an error if the file exists.
>>>>>>>>> So I should use
>>>>>>>>> file=new File(fileName+".ext");
>>>>>>>>>
>>>>>>>>> and then create it with
>>>>>>>>> if (!file.exists()) file=File.createTempFile(fileName,"ext");
>>>>>>>>> ?
>>>>>>>>> Regards
>>>>>>>>>
>>>>>>>>> Il giorno mercoledì 16 dicembre 2020 alle 04:45:37 UTC+1 Shai
>>>>>>>>> Almog ha scritto:
>>>>>>>>>
>>>>>>>>>> I don't follow?
>>>>>>>>>> What's the problem with exists() ?
>>>>>>>>>>
>>>>>>>>>> On Tuesday, December 15, 2020 at 10:41:21 AM UTC+2 P5music wrote:
>>>>>>>>>>
>>>>>>>>>>> Excuse me, I have another question about this.
>>>>>>>>>>> The app has to check if the file is already present. It could
>>>>>>>>>>> happen when the user types the same file name before the temp
>>>>>>>>>>> directory has
>>>>>>>>>>> been emptied.
>>>>>>>>>>> So I have to check it and delete before creating it again.
>>>>>>>>>>> But I wonder if temp files are special files, how to check it
>>>>>>>>>>> without any uncertainty?
>>>>>>>>>>> Thanks
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Il giorno martedì 15 dicembre 2020 alle 05:16:12 UTC+1 Shai
>>>>>>>>>>> Almog ha scritto:
>>>>>>>>>>>
>>>>>>>>>>>> It should. But the only way to make 100% sure is to test on the
>>>>>>>>>>>> device.
>>>>>>>>>>>>
>>>>>>>>>>>> On Monday, December 14, 2020 at 1:25:33 PM UTC+2 P5music wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> I would like to know if this code snippet will work on iOS.
>>>>>>>>>>>>> I want to use the message send feature to export some
>>>>>>>>>>>>> application data.
>>>>>>>>>>>>> The user is asked for the filename, then a temporary file is
>>>>>>>>>>>>> created containing the JSON text to be exported (with a custom
>>>>>>>>>>>>> file
>>>>>>>>>>>>> extension), then that file is used to create an output stream and
>>>>>>>>>>>>> attached
>>>>>>>>>>>>> like plain text (or should the json mimetype be used?), with no
>>>>>>>>>>>>> subject and
>>>>>>>>>>>>> no recipients.
>>>>>>>>>>>>> Thanks in advance
>>>>>>>>>>>>>
>>>>>>>>>>>>> try {
>>>>>>>>>>>>> file=File.createTempFile(fileName,"ext");
>>>>>>>>>>>>>
>>>>>>>>>>>>> OutputStream os =
>>>>>>>>>>>>> Storage.getInstance().createOutputStream(file.getAbsolutePath());
>>>>>>>>>>>>> os.write(text.getBytes("UTF-8"));
>>>>>>>>>>>>> os.flush();
>>>>>>>>>>>>> os.close();
>>>>>>>>>>>>> } catch (IOException e) {
>>>>>>>>>>>>> return;
>>>>>>>>>>>>> }
>>>>>>>>>>>>> Message m = new Message("");
>>>>>>>>>>>>> m.getAttachments().put(file.getAbsolutePath(),
>>>>>>>>>>>>> "text/plain");
>>>>>>>>>>>>> Display.getInstance().sendMessage(new String[]
>>>>>>>>>>>>> {""}, "", m);
>>>>>>>>>>>>>
>>>>>>>>>>>>>
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