Android cannot get app to read file

Asked Dec 30 '17 at 13:39

Active Dec 30 '17 at 13:42

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I'm having the following problem. I've created a new version of an app that requires to read a file (that exists). Partial logcat output:

W/System.err: File /storage/emulated/0/ccrypt/data.aux exists.

Also here is the code that prints this:

    System.err.println("File " + dataFile + " exists.");
    System.err.println("R: " + file.canRead() + ". W: " + file.canWrite());
    file.setReadable(true);
    file.setWritable(true);
    System.err.println("R: " + file.canRead() + ". W: " + file.canWrite());

The problem is that the output from the above code is:

W/System.err: R: false. W: false
W/System.err: R: false. W: false

So whenever I try to read it, I get the permission denied error. I have added these two lines at the bottom of my manifest file:

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

What could be the problem? Why am I not able to read/write the file?

edited Dec 30 '17 at 13:42

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asked Dec 30 '17 at 13:39

aarelovich

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https://stackoverflow.com/questions/32635704/android-permission-doesnt-work-even-if-i-have-declared-it – CommonsWare Dec 30 '17 at 13:41
Thank you. I'll try the solution in that answer – aarelovich Dec 30 '17 at 13:45

Android cannot get app to read file

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