【发布时间】：2012-01-07 04:14:01
【问题描述】：
在 Galaxy Tab 10.1 上运行 3.1 (Honeycomb)
不管有几种不同的方法，我都无法重置 WebView 的基本身份验证用户名和密码。我可以重置这些值的唯一方法是重新启动应用程序。我已经四处搜索，但尚未找到解决方案，甚至深入研究了 Android 源代码。
此代码来自每次我想显示需要基本身份验证的网页时创建的活动。有些部分不应该有任何影响，但出于沮丧而尝试。即使我退出此活动（然后被销毁）并根据我的主要活动的意图重新启动它，基本身份验证信息仍然存在，并且 WebViewClient 中的 onReceivedHttpAuthRequest 永远不会再次执行。
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.base_simple_v01);
findViewById(R.id.lyt_bsv01_layout).setBackgroundColor(0xFF000000);
baseContainer = (ViewGroup) findViewById(R.id.lyt_bsv01_baseContainer);
statusProgressBar = (ProgressBar) findViewById(R.id.lyt_bsv01_statusProgress);
resultNotificationTextView = (TextView) findViewById(R.id.lyt_bsv01_resultNotification);
// -- Attempt to prevent and clear WebView cookies
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeAllCookie();
cookieManager.removeSessionCookie();
cookieManager.setAcceptCookie(false);
// -- Attempt to clear WebViewDatabase
WebViewDatabase.getInstance(this).clearHttpAuthUsernamePassword();
WebViewDatabase.getInstance(this).clearUsernamePassword();
WebViewDatabase.getInstance(this).clearFormData();
// -- Brute force attempt to clear WebViewDatabase - didn't work
//deleteDatabase("webview.db");
//deleteDatabase("webviewCache.db");
LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
networkWebView = (WebView)vi.inflate(R.layout.social_connect, baseContainer, false);
// -- Removes white flickering in Honeycomb WebView page loading.
networkWebView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
networkWebView.getSettings().setJavaScriptEnabled(true);
networkWebView.getSettings().setSavePassword(false);
networkWebView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
networkWebView.clearSslPreferences();
networkWebView.setWebViewClient(mLocalDataRequester.endorseBackendAuthWebViewClient(
new BackendAuthWebViewClient() {
@Override
public void onReceivedHttpAuthRequest (WebView view, HttpAuthHandler handler, String host, String realm) {
Toast.makeText(getApplicationContext(), "AUTH REQUESTED", Toast.LENGTH_SHORT).show();
super.onReceivedHttpAuthRequest (view, handler, host, realm);
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
Toast.makeText(getApplicationContext(), "SSL ERROR", Toast.LENGTH_SHORT).show();
super.onReceivedSslError(view, handler, error);
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
statusProgressBar.setVisibility(View.VISIBLE);
networkWebView.setVisibility(View.INVISIBLE);
}
@Override
public void onPageFinished(WebView view, String url) {
statusProgressBar.setVisibility(View.INVISIBLE);
networkWebView.setVisibility(View.VISIBLE);
}
})
);
baseContainer.addView(networkWebView);
networkWebView.setVisibility(View.INVISIBLE);
networkWebView.setBackgroundColor(0x00000000);
clearWebView();
}
private void clearWebView() {
networkWebView.loadData("", "text/html", "utf-8");
//networkWebView.clearView();
networkWebView.clearCache(false);
networkWebView.clearCache(true);
networkWebView.clearFormData();
networkWebView.clearHistory();
networkWebView.clearCache(true);
networkWebView.clearMatches();
networkWebView.freeMemory();
}
@Override
public void onResume() {
super.onResume();
networkWebView.loadUrl(mBackendNetworkConnectUrl);
WebViewDatabase.getInstance(this).clearHttpAuthUsernamePassword();
}
@Override
public void onDestroy() {
super.onDestroy();
Toast.makeText(getApplicationContext(), "Destruction", Toast.LENGTH_SHORT).show();
networkWebView.destroy();
}
这是一个使用基本身份验证凭据初始化的 WebViewClient 子类。我已验证在进行身份验证时用户名和密码会更改。
public class BackendAuthWebViewClient extends WebViewClient {
private AuthenticateData mAuthenticateData = null;
public BackendAuthWebViewClient() {
}
public BackendAuthWebViewClient(AuthenticateData authenticateData) {
this.mAuthenticateData = authenticateData;
}
@Override
public void onReceivedHttpAuthRequest (WebView view, HttpAuthHandler handler, String host, String realm){
handler.proceed(mAuthenticateData.mUserId, mAuthenticateData.mUserPassword);
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed();
}
public void setAuthenticatedData(AuthenticateData authenticateData) {
this.mAuthenticateData = authenticateData;
}
}
我尝试了以下方法无济于事：
Android WebView - reset HTTP session
Clearing user's Facebook session in Webview
Make Android WebView not store cookies or passwords
Android WebView Cookie Problem
这很有趣，但蛮力的必要性会令人失望。不过接下来我会试试看。
编辑：没用。
【问题讨论】：
标签： android webview basic-authentication