How To Disable Copy and Paste from EditText

I am using following code but it is not working when cursor blink and I click on that paste button display.

edittext.setCustomSelectionActionModeCallback(new ActionMode.Callback() {

    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
        return false;
    }

    public void onDestroyActionMode(ActionMode mode) {                  
    }

    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
        return false;
    }

    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
        return false;
    }
});

I don't want to hide Cursor.

How do I solve this issue?