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Android WebView removeCookie

Android uses CookieManager to manage cookies. But there is only one method "removeAllCookies ()" to delete cookies, and this removes all cookies. Now I want to delete cookies associated only with the specified URL, and other cookies are not deleted. In this situation, how can I do this?

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2 answers

I made some minor changes to @summerxiaqing's answer, and I checked its work. (Added https, changed the empty check to TextUtils.isEmpty, passed CookieManager by argument)

     public static void clearCookieByUrl(String url, CookieManager pCookieManager, CookieSyncManager pCookieSyncManager) {
        Uri uri = Uri.parse(url);
        String host = uri.getHost();
        clearCookieByUrlInternal(url,pCookieManager,pCookieSyncManager);
        clearCookieByUrlInternal("http://." + host,pCookieManager,pCookieSyncManager);
        clearCookieByUrlInternal("https://." + host,pCookieManager,pCookieSyncManager);
    }

     private static void clearCookieByUrlInternal(String url, CookieManager pCookieManager, CookieSyncManager pCookieSyncManager) {
        if (TextUtils.isEmpty(url)) {
            return;
        }
        String cookieString = pCookieManager.getCookie(url);
        Vector<String> cookie = getCookieNamesByUrl(cookieString);
        if (cookie == null || cookie.isEmpty()) {
            return;
        }
        int len = cookie.size();
        for (int i = 0; i < len; i++) {
            pCookieManager.setCookie(url, cookie.get(i) + "=-1");
        }
        pCookieSyncManager.sync();
    }

    private static Vector<String> getCookieNamesByUrl(String cookie) {
        if (TextUtils.isEmpty(cookie)) {
            return null;
        }
        String[] cookieField = cookie.split(";");
        int len = cookieField.length;
        for (int i = 0; i < len; i++) {
            cookieField[i] = cookieField[i].trim();
        }
        Vector<String> allCookieField = new Vector<String>();
        for (int i = 0; i < len; i++) {
            if (TextUtils.isEmpty(cookieField[i])) {
                continue;
            }
            if (!cookieField[i].contains("=")) {
                continue;
            }
            String[] singleCookieField = cookieField[i].split("=");
            allCookieField.add(singleCookieField[0]);
        }
        if (allCookieField.isEmpty()) {
            return null;
        }
        return allCookieField;
    }

Inside action

mContext = getApplicationContext();
CookieManager mCookieManager = CookieManager.getInstance();
CookieSyncManager mCookieSyncManager = CookieSyncManager.createInstance(mContext);
clearCookieByUrl("http://example.com", mCookieManager, mCookieSyncManager);
+4
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1, Android do not support this interface.

2, work in our project.

sCookieManager = CookieManager.getInstance();

public static void clearCookieByUrl(String url) {

    Uri uri = Uri.parse(url);
    String host = uri.getHost();
    clearCookieByUrlInternal(url);
    clearCookieByUrlInternal("http://." + host);
  }

/**
   * clear cookie by url
   * @param url
   */
  private static void clearCookieByUrlInternal(String url) {
    if (Utils.isStringEmpty(url)) {
      return;
    }
    String cookieString = sCookieManager.getCookie(url);
    Vector<String> cookie = getCookieNamesByUrl(cookieString);
    if (cookie == null || cookie.isEmpty()) {
      return;
    }
    int len = cookie.size();
    for (int i = 0; i < len; i++) {
      sCookieManager.setCookie(url, cookie.get(i) + "=-1");
    }
    sCookieSyncManager.sync();
  }

private static Vector<String> getCookieNamesByUrl(String cookie) {
    if (Utils.isStringEmpty(cookie)) {
      return null;
    }
    String[] cookieField = cookie.split(";");
    int len = cookieField.length;
    for (int i = 0; i < len; i++) {
      cookieField[i] = cookieField[i].trim();
    }
    Vector<String> allCookieField = new Vector<String>();
    for (int i = 0; i < len; i++) {
      if (Utils.isStringEmpty(cookieField[i])) {
        continue;
      }
      if (!cookieField[i].contains("=")) {
        continue;
      }
      String[] singleCookieField = cookieField[i].split("=");
      allCookieField.add(singleCookieField[0]);
    }
    if (allCookieField.isEmpty()) {
      return null;
    }
    return allCookieField;
  }

. Android ( , - 2.3), cookie, , ".". + host cookie. , .

+1

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