Question

我使用android WebView加载Instagram登录页面。它加载很好，我可以在屏幕上看到它。之后我点击＆＃34;通过Facebook登录＆＃34;按钮，将我重定向到Facebook登录页面。我输入我的Facebook凭据并单击登录按钮。之后，Facebook将我重定向回Instagram以重定向URI（https://www.instagram.com/accounts/signup）并且此页面无限加载（如果我在浏览器中执行相同的操作，Facebook会将我重定向到同一页面，但此页面不会加载无限，但重定向到我的Instagram帐户的个人资料页面）。我该怎么做才能防止无限加载？这是我的Activity代码WebView以及此页面的屏幕截图

public class InstagramAuthActivity extends BaseActivity implements InstagramRepository.OnLoadListener<String> {

    public static final String EXTRA_COOKIES = "cookies_instagram";
    public static final String EXTRA_USERNAME = "username_instagram";

    private static final String URL = "https://www.instagram.com";

    private ViewHolder mViewHolder;
    private String mCookies;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_instagram_auth);
        createViewHolder();
        populateViewHolder();
    }

    private void createViewHolder() {
        mViewHolder = new ViewHolder();
        mViewHolder.mAuthWebView = (WebView) findViewById(R.id.auth);
    }

    private void populateViewHolder() {
        WebSettings settings = mViewHolder.mAuthWebView.getSettings();
        settings.setJavaScriptEnabled(true);
        mViewHolder.mAuthWebView.setWebViewClient(new InstagramWebViewClient());
        mViewHolder.mAuthWebView.loadUrl(URL);
    }

    @Override
    public void onLoad(String data) {
        if (data != null) {
            Intent intent = new Intent();
            intent.putExtra(EXTRA_COOKIES, mCookies);
            intent.putExtra(EXTRA_USERNAME, data);
            setResult(RESULT_OK, intent);
        } else {
            setResult(RESULT_CANCELED);
        }
        finish();
    }

    @Override
    public void onFail() {
        setResult(RESULT_CANCELED);
        finish();
    }

    private class ViewHolder {
        WebView mAuthWebView;
    }

    private class InstagramWebViewClient extends WebViewClient {

        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            String cookies = CookieManager.getInstance().getCookie(url);
            Log.d("tag", "url: " + url + "; cookies: " + cookies);
            if (cookies.contains("ds_user_id")) {
                mCookies = cookies;
                String[] cookieData = cookies.split("; ");
                if (cookieData != null && cookieData.length > 1) {
                    String[] idData = null;
                    for (String cookie : cookieData) {
                        if (cookie.contains("ds_user_id")) {
                            idData = cookie.split("=");
                            break;
                        }
                    }
                    if (idData != null && idData.length > 1) {
                        InstagramRepository.getInstance(InstagramAuthActivity.this).getUsername(idData[1], InstagramAuthActivity.this);
                    }
                }
            }
        }

        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
            handler.proceed();
        }

        @Override
        public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
            super.onReceivedError(view, request, error);
        }
    }
}

此处还记录了我重定向到的所有网址

09-14 10:53:14.555 21316-21316/ru.luckybook D/tag: url: https://www.instagram.com/
09-14 10:53:15.539 21316-21316/ru.luckybook D/tag: url: https://www.instagram.com/
09-14 10:53:22.048 21316-21316/ru.luckybook D/tag: url: https://m.facebook.com/login.php?skip_api_login=1&api_key=124024574287414&signed_next=1&next=https%3A%2F%2Fm.facebook.com%2Fv1.0%2Fdialog%2Foauth%3Fredirect_uri%3Dhttps%253A%252F%252Fwww.instagram.com%252Faccounts%252Fsignup%252F%26scope%3Demail%26response_type%3Dtoken%252Cgranted_scopes%26client_id%3D124024574287414%26ret%3Dlogin%26logger_id%3D7b5f7abf-6769-464a-86e9-a26e8301375d&cancel_url=https%3A%2F%2Fwww.instagram.com%2Faccounts%2Fsignup%2F%3Ferror%3Daccess_denied%26error_code%3D200%26error_description%3DPermissions%2Berror%26error_reason%3Duser_denied%23_%3D_&display=touch&locale=ru_RU&logger_id=7b5f7abf-6769-464a-86e9-a26e8301375d&_rdr
09-14 10:53:46.864 21316-21316/ru.luckybook D/tag: url: https://www.instagram.com/accounts/signup/

Answer 1

当您创建WebView时，您只需在CookieManager.getInstance().setAcceptThirdPartyCookies(mWebView,true);中启用第三方Cookie，如下所示：

WebView

在此之后，Instagram将在#include<stdio.h> int main() { char c='1'; int i=10; printf("%c", c|i); }开始正常工作。我遇到了同样的问题，我通过实施上述代码解决了这个问题。

Answer 2

我找到了一个解决方案，希望它将对其他人有所帮助。

以下块很重要，

webSettings.setDomStorageEnabled(true);  

private void populateViewHolder() {
    WebSettings settings = mViewHolder.mAuthWebView.getSettings();
    settings.setJavaScriptEnabled(true);
    webSettings.setDomStorageEnabled(true);
    mViewHolder.mAuthWebView.setWebViewClient(new InstagramWebViewClient());
    mViewHolder.mAuthWebView.loadUrl(URL);    
}

启用此选项后，Instagram正常运行。

我认为是disabled by default for space savings and security。

webview中的Android instagram页面无限加载

2 个答案: