Fragment With Webview Utilize Harware Back Button To Go To Previous Webpage

This appears to have been asked a lot on stack overflow, but with answers which appear to no longer be implementable with changes to the SDK (I may be wrong!). I have been trying t

Solution 1:

Try overriding onBackPressed() in your Activity and make it poke the WebView.

BTW - you could post the piece of Activity containing the onKeyDown method as well.

EDIT: Instead of making your methods static and accessing them the way you do now (BlogFragment.canGoBack()), first instantiate the fragment:

BlogFragmentblogFragment=newBlogFragment();
blogFragment.canGoBack();

and then just remove the static from your methods. :)

OPs implementation (with thanks to Klotor) At the head of MainActivity implement:

BlogFragmentblogFragment=newBlogFragment();

Then implement:

public void onBackPressed() {

    blogFragment.canGoBack();
    if(blogFragment.canGoBack()){
        blogFragment.goBack();
    }else{
        super.onBackPressed();
    }

}

The fragment is instantiated outside of the onBackPressed in order to prevent crashing when using a method to navigate between fragments. In this case you need to instantiate a newinstance of the fragment, rather than a whole new fragment.

Solution 2:

** In your Fragment Class Inside OnCreateView put below code**

@OverridepublicViewonCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        view = inflater.inflate(R.layout.your_layout, container, false);

      mWebView = (WebView) view.findViewById(R.id.webView);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.setWebViewClient(newMyWebViewClient());
        mWebView.loadUrl(expertsUrl);

        return view;
    }


privateclassMyWebViewClientextendsWebViewClient {
        @OverridepublicbooleanshouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            returntrue;
        }
    }

**In MainActivity class put below code **

@OverridepublicvoidonBackPressed() {
    if (WebViewFragment.mWebView!=null) {
        if (WebViewFragment.mWebView.canGoBack()) {
            WebViewFragment.mWebView.goBack();
        }
        else {
            super.onBackPressed();
        }
        }
    }

Replace WebViewFragment -> with your Fragment mWebView -> with your webview

Hope this will help you!!!!