Question

我在加载特定网址的应用中有一个WebView，但是在使用该应用时，可能会在网络视图中将用户/重定向到另一个网址，例如www.cheese.com ，不应该在应用程序中查看。是否可以在WebView内收听该网址（www.cheese.com），如果它在加载完成之前开始加载重定向到另一个网址？

public class MainActivity extends AppCompatActivity {

    private WebView mWebView;

        mWebView.loadUrl("https://example.com");

        // Enable Javascript
        WebSettings webSettings = mWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);

    }
}

Answer 1

    // Load CustomWebviewClient in webview and override shouldOverrideUrlLoading method
    mWebView.setWebViewClient(CustomWebViewClient)



class CustomWebViewClient extends WebViewClient {

    @SuppressWarnings("deprecation")
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        final Uri uri = Uri.parse(url);
        return handleUri(uri);
    }

    @TargetApi(Build.VERSION_CODES.N)
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
        final Uri uri = request.getUrl();
        return handleUri(uri);
    }

    private boolean handleUri(final Uri uri) {
        Log.i(TAG, "Uri =" + uri);
        final String host = uri.getHost();
        final String scheme = uri.getScheme();
        // Based on some condition you need to determine if you are going to load the url 
        // in your web view itself or in a browser. 
        // You can use `host` or `scheme` or any part of the `uri` to decide.

        /* here you can check for that condition for www.cheese.com */
        if (/* any condition */) {
            // Returning false means that you are going to load this url in the webView itself
            return false;
        } else {
            // Returning true means that you need to handle what to do with the url
            // e.g. open web page in a Browser
            final Intent intent = new Intent(Intent.ACTION_VIEW, uri);
            startActivity(intent);
            return true;
        }
    }
}

Answer 2

尝试使用以下内容：

webView.setWebViewClient(new WebViewClient() {
        public boolean shouldOverrideUrlLoading(WebView view, String url) {

            if (url != null && url.startsWith("http://www.cheese.com")) {
                //do what you want here
                return true;
            } else {
                return false;
            }
        }
    });

在Webview中重定向特定URL - Android

2 个答案: