How to add on android back button back action for webview?

Question

React Native

Added this code to my MainActivity.java but nothing works, the back button just exits the app

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

my MainActivity.java

package com.mobile;

import android.os.Bundle;

import com.facebook.react.ReactActivity;
import com.facebook.react.ReactActivityDelegate;
import com.facebook.react.ReactRootView;
import com.swmansion.gesturehandler.react.RNGestureHandlerEnabledRootView;

import expo.modules.splashscreen.singletons.SplashScreen;
import expo.modules.splashscreen.SplashScreenImageResizeMode;

public class MainActivity extends ReactActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(null);
    // SplashScreen.show(...) has to be called after super.onCreate(...)
    // Below line is handled by '@expo/configure-splash-screen' command and it's discouraged to modify it manually
    SplashScreen.show(this, SplashScreenImageResizeMode.CONTAIN, ReactRootView.class, false);
  }


    /**
     * Returns the name of the main component registered from JavaScript.
     * This is used to schedule rendering of the component.
     */
    @Override
    protected String getMainComponentName() {
        return "main";
    }

    @Override
    protected ReactActivityDelegate createReactActivityDelegate() {
        return new ReactActivityDelegate(this, getMainComponentName()) {
            @Override
            protected ReactRootView createRootView() {
                return new RNGestureHandlerEnabledRootView(MainActivity.this);
            }
        };
    }
   @Override
    public void onBackPressed() {
        if (webView.canGoBack()) {
            webView.goBack();
        } else {
            super.onBackPressed();
        }
    }
}

Answer 1

You bind to the Back Handler. More details in the doc. And already there you process a function in which, if I'm not mistaken, you can attach roofing felts to ref roofing felts, or WebView simply has some kind of parameter to return back. I did it but I don't remember