Why file.exists() return false?

Question

I have Uri image which I store from ActivityOnResult. I would like to remove this image few steps later.

File file=new File(uri.toString());
//I tried file.mkdir() too, but without change
if(file.exists())
     file.delete();

But file.exists() return false. I have no idea what can be the reason. I will be gratefull for any tipis

There is no way to answer your question as is. The only answer we could give is that the File simply *does not exist*. What is the URI? — Kevin Coppock, Aug 06 '14 at 20:01

score 2 · Accepted Answer · edited Aug 06 '14 at 20:45

2

It's a content:// URI meaning you can't treat it as a normal file. Instead try this. getContentResolver().delete(uri, null, null);

edited Aug 06 '14 at 20:45

Kevin Coppock

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answered Aug 06 '14 at 20:06

Simon

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Works! And it's simple too ;) Thank you – pupilx Aug 06 '14 at 20:16
But I have one question, I am new in it:) Is any possibility that image Uri from ActivityForResult won't be in content://.. and this solution won't work? – pupilx Aug 06 '14 at 20:22
Well that depends on the Intent you are using in `startActivityForResult`. – Simon Aug 06 '14 at 20:27
It's Intent(Intent.ACTION_PICK, Media.EXTERNAL_CONTENT_URI) – pupilx Aug 06 '14 at 20:30
Then yes. Because you always request for a content uri. – Simon Aug 06 '14 at 20:35

score 0 · Answer 2 · answered Aug 06 '14 at 19:52

0

Try this

File file=new File(uri.getPath());
//I tried file.mkdir() too, but without change
if(file.exists())
     file.delete();

answered Aug 06 '14 at 19:52

Gokhan Arik

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Can you log what `uri.getPath()` is returning? Where the image is located and do you have permission to write? You can check that with `file.canRead()` – Gokhan Arik Aug 06 '14 at 19:56
Yes, I have permission in manifest. Image is located content://media/external/images/media/84 and getPAth() return /external/images/media/84 – pupilx Aug 06 '14 at 20:00
1

That is not a file path. That's a content provider URI. `/external/images/media/84` is not a file and therefore, does not exist. – Kevin Coppock Aug 06 '14 at 20:02
Check that solution - http://stackoverflow.com/questions/3401579/get-filename-and-path-from-uri-from-mediastore?rq=1 – Gokhan Arik Aug 06 '14 at 20:06

score 0 · Answer 3 · answered Aug 06 '14 at 20:00

0

Do you know what is the value in uri? toString should work, getPath will return the decoded path which might not be valid.

answered Aug 06 '14 at 20:00

Amrut

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score 0 · Answer 4 · answered Aug 06 '14 at 20:02

0

You need to check exists on getAbsoluteFile().

Try this

 File file=new File(uri.toString());
//I tried file.mkdir() too, but without change
 if(file.getAbsoluteFile().exists()) {
   file.delete();
 }

answered Aug 06 '14 at 20:02

AnkitSomani

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Unfortunatelly, the same – pupilx Aug 06 '14 at 20:07

score 0 · Answer 5 · edited May 23 '17 at 12:05

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The uri whihc you are getting in onActivityResult might be content scheme uri..Please print the uri.Toi convert content scheme uri to file uri refer the following SO question:

Get filename and path from URI from mediastore

edited May 23 '17 at 12:05

Community

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answered Aug 06 '14 at 20:11

rupesh jain

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Why file.exists() return false?

5 Answers5