用这个:

lWebView.setWebViewClient(new WebViewClient());

简单回答你可以这样用

public class MainActivity extends AppCompatActivity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         WebView webView = new WebView(this);
         setContentView(webView);
         webView.setWebViewClient(new WebViewClient());
         webView.loadUrl("http://www.google.com");
   }
}

我刚刚发现，这取决于URL的格式:

https://example.com/example在浏览器中打开 https://example.com/example/(以/结尾)在webView中打开

我的代码只使用

webview.loadUrl(url)

无需设置

webView.setWebViewClient(new WebViewClient())

至少对我来说是这样。 也许这对你们有些人有用。

让你的活动像这样。

public class MainActivity extends Activity {
WebView browser;

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

    // find the WebView by name in the main.xml of step 2
    browser=(WebView)findViewById(R.id.wvwMain);

    // Enable javascript
    browser.getSettings().setJavaScriptEnabled(true);  

    // Set WebView client
    browser.setWebChromeClient(new WebChromeClient());

    browser.setWebViewClient(new WebViewClient() {

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return true;
                }
        });
     // Load the webpage
    browser.loadUrl("http://google.com/");
   }
}

我也遇到了同样的问题，但我找到了解决办法 Android关于WebView的官方文档

这是我的onCreateView()方法，在这里我使用了两个方法来打开url 方法1是在浏览器中打开url和 方法2是在你想要的WebView中打开url。 我使用方法2为我的应用程序，这是我的代码:

public class MainActivity extends Activity {
   private WebView myWebView;

     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

      View rootView = inflater.inflate(R.layout.fragment_webpage_detail, container, false);

      // Show the dummy content as text in a TextView.
      if (mItem != null) {

         /* Method : 1
          This following line is working fine BUT when we click the menu item then it opens the URL in BROWSER not in WebView */
         //((WebView)   rootView.findViewById(R.id.detail_area)).loadUrl(mItem.url);

        // Method : 2
        myWebView = (WebView) rootView.findViewById(R.id.detail_area); // get your WebView form your xml file
        myWebView.setWebViewClient(new WebViewClient()); // set the WebViewClient
        myWebView.loadUrl(mItem.url); // Load your desired url
    }

    return rootView;
}                                                                                               }

试试这段代码…

private void startWebView(String url) {

    //Create new webview Client to show progress dialog
    //When opening a url or click on link

    webView.setWebViewClient(new WebViewClient() {      
        ProgressDialog progressDialog;

        //If you will not use this method url links are opeen in new brower not in webview
        public boolean shouldOverrideUrlLoading(WebView view, String url) {              
            view.loadUrl(url);
            return true;
        }

        //Show loader on url load
        public void onLoadResource (final WebView view, String url) {
            if (progressDialog == null) {
                // in standard case YourActivity.this
                progressDialog = new ProgressDialog(view.getContext());
                progressDialog.setMessage("Loading...");
                progressDialog.show();
            }
        }
        public void onPageFinished(WebView view, String url) {
            try{
            if (progressDialog.isShowing()) {
                progressDialog.dismiss();
                progressDialog = null;
            }
            }catch(Exception exception){
                exception.printStackTrace();
            }
        }

    }); 

     // Javascript inabled on webview  
    webView.getSettings().setJavaScriptEnabled(true); 

    // Other webview options
    /*
    webView.getSettings().setLoadWithOverviewMode(true);
    webView.getSettings().setUseWideViewPort(true);
    webView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
    webView.setScrollbarFadingEnabled(false);
    webView.getSettings().setBuiltInZoomControls(true);
    */

    /*
     String summary = "<html><body>You scored <b>192</b> points.</body></html>";
     webview.loadData(summary, "text/html", null); 
     */

    //Load url in webview
    webView.loadUrl(url);
}