Android-WebView's onReceivedHttpAuthRequest() not called again

android, android-webview, basic-authentication, webview, webviewclient

Solution

before load the url,set Authorization information in http headers

Map extraHeaders = new HashMap<>(); extraHeaders.put("Authorization", "TlRM");//the value is Casually set. webView.loadUrl(url, extraHeaders);

in WebViewClient

@Override public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) { view.loadUrl(url);//reload the url. handler.proceed(account, password); }

I resolve this issue,but I can not speak English very well. Hope it can help you.

Problem

I am using a webview based application where i am rendering a url in the webview. The Url has a HTTP auth . When i launch the url very first time,its onReceivedHttpAuthRequest() is called and I display a dialog for user to enter the authentication credentials that is auth username and password. ``` @Override public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) { final WebView mView = view; final HttpAuthHandler mHandler = handler; final EditText usernameInput = new EditText(mActivity); usernameInput.setHint("Username"); final EditText passwordInput = new EditText(mActivity); passwordInput.setHint("Password"); passwordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD); LinearLayout ll = new LinearLayout(mActivity); ll.setOrientation(LinearLayout.VERTICAL); ll.addView(usernameInput); ll.addView(passwordInput); Builder authDialog = new AlertDialog .Builder(mActivity) .setTitle("Authentication") .setView(ll) .setCancelable(false) .setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { mHandler.proceed(usernameInput.getText().toString(), passwordInput.getText().toString()); dialog.dismiss(); } }) .setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { dialog.dismiss(); mView.stopLoading(); onLoadListener.onAuthCancel((MyWebView)mView, mTitleTextView); } }); if(view!=null) authDialog.show(); } ``` On Submitting the request proceed well and the url is loaded. But After I exit the app using back button(not sending in background), if i launch it again and tru to load the same url it directly load the url without asking for credentials that is onReceivedHttpAuthRequest() is never called again. I am also clearing the credentials on app exit using following code: ``` WebViewDatabase webDB = WebViewDatabase.getInstance(BrowserActivity.this); if(webDB!=null){ if(webDB.hasFormData()) webDB.clearFormData(); if(webDB.hasUsernamePassword()) webDB.clearUsernamePassword(); if(webDB.hasHttpAuthUsernamePassword()) webDB.clearHttpAuthUsernamePassword(); } webView.clearCache(true); ``` Also i am clearing all the webview cache, cookies, and application's cache directory and the webview databases: ``` BrowserActivity.this.deleteDatabase("webview.db"); BrowserActivity.this.deleteDatabase("webviewCache.db"); ``` I don't know why this is happening. Is there anybody who can help me on this. At least on the issue that why onReceivedHttpAuthRequest() is not called?

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