How do I Lock user in home directory

Question

I've created a directory at Environment.getExternalStorage() called '/My Webs'. When the app starts it loads the contents of the directory files and sub directories into a list I have a button to go to parent directories, but I don't want the user to go any higher than the root /My Webs directory.

Here is what I've tried:

 private void upOneLevel(){
                if(this.currentDirectory.getParent() != null || this.currentDirectory.getParent() != Environment.getExternalStorageDirectory().getPath() + "My Webs")
                        this.browseTo(this.currentDirectory.getParentFile());
        }

    private void browseTo(final File aDirectory){
            // On relative we display the full path in the title.
            if(this.displayMode == DISPLAYMODE.RELATIVE)
                    this.setTitle(aDirectory.getAbsolutePath() + " :: " +
                                    getString(R.string.app_name));
            if (aDirectory.isDirectory()){
                    this.currentDirectory = aDirectory;
                    fill(aDirectory.listFiles());
            }else{
                    openFile(aDirectory);
            }
    }

Answer 1

Your problem is here:

this.currentDirectory.getParent() != Environment.getExternalStorageDirectory().getPath() + "My Webs"

That is not how you compare strings in Java. Instead, use equals() such as:

!this.currentDirectory.getParent().equals( Environment.getExternalStorageDirectory().getPath() + "My Webs" )