calling exists on directory always return false in android

Question

I am trying to create a directory in internal storage for my app. Following is the code I am using to check if the directory exists or not. If the directory already exists, it is returned; else, the directory is created and returned. But even in the subsequent calls to the method, the exists() call on the directory always return false. What is the reason? Thanks

public File getMessageVoiceDirectory() {
    File messageVoiceDirectory = this.myContext.getDir("Voice",Context.MODE_PRIVATE);


    if (messageVoiceDirectory.exists() == false) {
        messageVoiceDirectory.mkdirs();
    }


    return messageVoiceDirectory;
}

@pratim- check the path you are getting from "this.myContext.getFilesDir()".. by debbugging... Environment.getExternalStorageDirectory() use this..if you are getting wrong path — Mr Code, Aug 09 '17 at 11:38

bremen_matt · Answer 1 · 2017-08-10T04:36:55.187

0

First off, switch your condition to

if (!messageVoiceDirectory.exists()) {
    boolean actuallyCreated = messageVoiceDirectory.mkdirs();
    if (!actuallyCreated){
       Log.e("Activity", "Woah... the mkdirs command got called, but was not successful. We need to investigate.");
    }
}

Next, you need to check the return value of mkdirs. Presumably the directory isn't being created. This could happen if you don't have the correct permissions.

edited Aug 10 '17 at 04:36

answered Aug 09 '17 at 11:37

bremen_matt

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do you think this answers the question about ***why the method always return false***?? – ΦXocę 웃 Пepeúpa ツ Aug 09 '17 at 11:39
It might help to show an example of checking the result of `mkdirs()` and taking some appropriate action for the failure case. Otherwise readers may overlook the most important half of the answer! – Toby Speight Aug 09 '17 at 12:29
You dont need any permission for internal files dir. – greenapps Aug 09 '17 at 15:09

score 0 · Answer 2 · answered Aug 09 '17 at 11:56

0

You can try this one. It will work

 File path = new File(this.getFilesDir(), "DirectoryName");
     if (!path.exists()) {
         path.mkdirs();
         Toast.makeText(this,"Created",Toast.LENGTH_LONG).show();
     }
     else
         Toast.makeText(this,"Already Exist",Toast.LENGTH_LONG).show();

answered Aug 09 '17 at 11:56

Raja

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Your first toast should check the return value of mkdirs. – bremen_matt Aug 09 '17 at 12:03

score 0 · Answer 3 · answered Aug 09 '17 at 12:00

0

When you exactly call getMessageVoiceDirectory(), ensure that you call inside onCreate(),

Check this out.

answered Aug 09 '17 at 12:00

Khaled Lela

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calling exists on directory always return false in android

3 Answers3