library/src/main/java/net/rdrei/android/dirchooser/DirectoryChooserFragment.java
private boolean isValidFile(final File file) {
        return (file != null && file.isDirectory() && file.canRead() &&
                (mConfig.allowReadOnlyDirectory() || file.canWrite()));
    }
private boolean isValidFile(final File file) {
        return (file != null && file.isDirectory() && file.canRead() &&
                (mConfig.allowReadOnlyDirectory() || file.canWrite()));
    }
private boolean isValidFile ( final File file ) { return ( file != null && file . isDirectory ( ) && file . canRead ( ) && ( mConfig . allowReadOnlyDirectory ( ) || file . canWrite ( ) ) ) ; }
Returns true if the selected file or directory would be valid selection.
Returns true if the selected file or directory would be valid selection .