For the last few days I have been trying to create "lite" apps for services I use by writing webview applications in android studio using Java. The problem is that when I press the back button on the navigation bar, the apps exit to the launcher instead of returning to the previous webpage. ive tried using

@Override
    public void onBackPressed()
    {
        if(app.canGoBack()){
            app.goBack();
        }else{
            super.onBackPressed();
        }

even though onBackPressed is deprecated to no avail. ive also tried

@Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (event.getAction()== KeyEvent.ACTION_DOWN){
            switch (keyCode){
                case KeyEvent.KEYCODE_BACK:
                    if (app.canGoBack()) {

                        app.goBack();
                    }

                    return true;
                    }
            }
        return super.onKeyDown(keyCode, event);
    }

which again fixes nothing. im effectively posting this here as a last resort because nobody else on the entire internet seems to know whats going on and i wanna fix it :( im using the latest version of android studio on windows 11 21h2, writing in java with the latest sdk.