Clicking URLs opens default browser

问题:

I have loaded an external URL in my WebView. Now what I need is that when the user clicks on the links on the page loaded, it has to work like a normal browser and open the link in the same WebView. But it\'s opening the default browser and loading the page there?

I have enabled JavaScript. But still it\'s not working. Have I forgotten something?

回答1:

If you\'re using a WebView you\'ll have to intercept the clicks yourself if you don\'t want the default Android behaviour.

You can monitor events in a WebView using a WebViewClient. The method you want is shouldOverrideUrlLoading(). This allows you to perform your own action when a particular URL is selected.

You set the WebViewClient of your WebView using the setWebViewClient() method.

If you look at the WebView sample in the SDK there\'s an example which does just what you want. It\'s as simple as:

private class HelloWebViewClient extends WebViewClient {
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
    }
}

回答2:

in some cases you might need an override of onLoadResource if you get a redirect which doesn\'t trigger the url loading method. in this case i tried the following:

@Override
public void onLoadResource(WebView view, String url)
{
    if (url.equals(\"http://redirectexample.com\"))
    {
        //do your own thing here
    }
    else
    {
        super.onLoadResource(view, url);
    }           
}

回答3:

Official documentation says, click on a link in a WebView will launch application that handles URLs. You need to override this default behavior

    myWebView.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            return false;
        }
    });

or if there is no conditional logic in the method simply do this

myWebView.setWebViewClient(new WebViewClient());

回答4:

Add this 2 lines in your code -

mWebView.setWebChromeClient(new WebChromeClient()); 
mWebView.setWebViewClient(new WebViewClient());

回答5:

Arulx Z\'s answer was exactly what I was looking for.

I\'m writing an app with Navigation Drawer with recyclerview and webviews, for keeping the web browsing inside the app regardless of hyperlinks clicked (thus not launching the external web browser). For that it will suffice to put the following 2 lines of code:

mWebView.setWebChromeClient(new WebChromeClient()); mWebView.setWebViewClient(new WebViewClient());

exactly under your WebView statement.

Here\'s a example of my implemented WebView code:

public class WebView1 extends AppCompatActivity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    WebView wv = (WebView) findViewById(R.id.wv1); //webview statement
    wv.setWebViewClient(new WebViewClient());    //the lines of code added
    wv.setWebChromeClient(new WebChromeClient()); //same as above

    wv.loadUrl(\"http://www.google.com\");
}}

this way, every link clicked in the website will load inside your WebView. (Using Android Studio 1.2.2 with all SDK\'s updated)

回答6:

The method boolean shouldOverrideUrlLoading(WebView view, String url) was deprecated in API 24. If you are supporting new devices you should use boolean shouldOverrideUrlLoading (WebView view, WebResourceRequest request).

You can use both by doing something like this:

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
    newsItem.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
            view.loadUrl(request.getUrl().toString());
            return true;
        }
    });
} else {
    newsItem.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    });
}