Android Webview make back button go to previous page

Question

I have a web view that lets me browse through a site. When i click the back button, rather than it going to the previous page it exits the app. I have added the following method to MainActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    setContentView(R.layout.activity_main);
    WebView webview = (WebView) this.findViewById(R.id.webView);
    if (event.getAction() == KeyEvent.ACTION_DOWN) {
        switch (keyCode) {
            case KeyEvent.KEYCODE_BACK:
                if (webview.canGoBack()) {
                    webview.goBack();
                } else {
                    finish();
                }
                return true;
        }
    }
    return super.onKeyDown(keyCode, event);
}

Answer 1

I think you should override your activity OnBackPressed :

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

Answer 2

Do not override onKeyDown event, override onBackPressed, so that every time the back button is pressed, you can override it and add your own logic into it. The Code is like this:

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