我正在webview中加载一个网站,我们在网站上使用了Ajax,它在网页浏览器和移动浏览器上也运行良好,但在android webview中ajax无法正常工作,控制台中没有错误.这是我的代码： –

public class Activity_WebView extends AppCompatActivity implements

ConnectivityReceiver.ConnectivityReceiverListener {

WebView webview;

ProgressDialog pro_dialog;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_web_view);

webview = (WebView) findViewById(R.id.webview);

webview.getSettings().setPluginState(WebSettings.PluginState.ON);

webview.setWebViewClient(new loadinsame());

pro_dialog = new ProgressDialog(Activity_WebView.this);

webview.getSettings().setJavaScriptEnabled(true);

webview.getSettings().setDomStorageEnabled(true);

webview.getSettings().setAllowUniversalAccessFromFileURLs(true);

boolean connection = checkConnection();

if (connection) {

webview.loadUrl("website url");

} else {

Toast.makeText(Activity_WebView.this, "Sorry! Not connected to

internet", Toast.LENGTH_SHORT).show();

dialog_Show(webview, "Please check you Inernet connect and Reload.",

false);

}

}

@Override

public void onNetworkConnectionChanged(boolean isConnected) {

if (!isConnected) {

Toast.makeText(Activity_WebView.this, "Sorry! Not connected to

internet", Toast.LENGTH_SHORT).show();

}

}

private class loadinsame extends WebViewClient {

@Override

public void onPageStarted(WebView view, String url, Bitmap favicon) {

super.onPageStarted(view, url, favicon);

pro_dialog.setCancelable(false);

pro_dialog.setMessage("Loading...");

pro_dialog.show();

}

@Override

public boolean shouldOverrideUrlLoading(WebView view, String url) {

view.loadUrl(url);

return true;

}

@Override

public void onPageFinished(WebView view, String url) {

super.onPageFinished(view, url);

pro_dialog.dismiss();

}

@Override

public void onReceivedError(final WebView webview, WebResourceRequest

request, WebResourceError error) {

super.onReceivedError(webview, request, error);

pro_dialog.dismiss();

// dialog_Show(webview, "Error Occur, Do you want to Reload?", true);

}

}

@Override

public void onBackPressed() {

if (webview.canGoBack()) {

webview.goBack();

} else {

super.onBackPressed();

}

}

private boolean checkConnection() {

boolean isConnected = ConnectivityReceiver.isConnected();

return isConnected;

}

@Override

protected void onResume() {

super.onResume();

MyApplication.getInstance().setConnectivityListener(this);

}

}

当我使用模拟器检查chrome中的网站时,发现我的ajax保持挂起状态,然后在一段时间后取消.

提前致谢.

解决方法:

通过覆盖shouldInterceptRequest拦截你的ajax调用是这样的：

private class LoadInSame extends WebViewClient {

@Override

public WebResourceResponse shouldInterceptRequest(WebView webview, WebResourceRequest webrequest)

{

Log.d("test", "shouldInterceptRequest");

return this.handleRequest(webrequest.getUrl().toString());

}

@NonNull

private WebResourceResponse handleRequest(@NonNull String urlString) {

try {

URL url = new URL(urlString);

HttpURLConnection connection = (HttpURLConnection)url.openConnection();

connection.setRequestProperty("User-Agent", "");

connection.setRequestMethod("GET");

connection.setDoInput(true);

connection.connect();

InputStream inputStream = connection.getInputStream();

return new WebResourceResponse("text/json", "utf-8", inputStream);

} catch (MalformedURLException e) {

e.printStackTrace();

return null;

}

catch (ProtocolException e) {

e.printStackTrace();

return null;

}catch (IOException e) {

e.printStackTrace();

return null;

}

}

}

还请遵循JAVA命名约定.

标签：android,ajax,android-webview,webview

来源： https://codeday.me/bug/20190627/1309168.html