[转] How to clear cookies and cache of webview on Android(安卓)when not in webview?

阅读更多原文地址： http://stackoverflow.com/a/31950789

@SuppressWarnings("deprecation")public static void clearCookies(Context context){    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {        Log.d(C.TAG, "Using clearCookies code for API >=" + String.valueOf(Build.VERSION_CODES.LOLLIPOP_MR1));        CookieManager.getInstance().removeAllCookies(null);        CookieManager.getInstance().flush();    } else    {        Log.d(C.TAG, "Using clearCookies code for API <" + String.valueOf(Build.VERSION_CODES.LOLLIPOP_MR1));        CookieSyncManager cookieSyncMngr=CookieSyncManager.createInstance(context);        cookieSyncMngr.startSync();        CookieManager cookieManager=CookieManager.getInstance();        cookieManager.removeAllCookie();        cookieManager.removeSessionCookie();        cookieSyncMngr.stopSync();        cookieSyncMngr.sync();    }}

I call this method in the following manner from my fragment:

mWebView.clearCache(true);mWebView.clearHistory();U.clearCookies(getActivity());mWebView.loadUrl(authorizeURL);

It is possible to dump the cookies for a domain before and after the call to clearCookies by:

String yahooCookies = CookieManager.getInstance().getCookie("https://yahoo.com");Log.d(C.TAG, "Cookies for yahoo.com:" + yahooCookies);

After calling clearCookies yahooCookies will be null.

This implementation feeds my needs, I have tested it on several emulators and a prehistoric Samsung Galaxy Gio with Android 2.3.3 and Nexus 5 with Android 5.1.1.

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