我在我的 android 应用程序上遇到了同样的问题。问题的原因是 FB 登录 javascript 在新窗口中打开新页面。然后它会在登录成功后尝试关闭它。请按照我的工作代码中的流动示例进行操作。
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#0099cc"
tools:context=".MyActivity"
android:id="@+id/webview_frame">
<WebView
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
ID 为“webview”的Webview 是我的内容的主视图。以下是我的活动代码。
public class MyActivity extends Activity {
/* URL saved to be loaded after fb login */
private static final String target_url="http://www.example.com";
private static final String target_url_prefix="www.example.com";
private Context mContext;
private WebView mWebview;
private WebView mWebviewPop;
private FrameLayout mContainer;
private long mLastBackPressTime = 0;
private Toast mToast;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_urimalo);
// final View controlsView =
// findViewById(R.id.fullscreen_content_controls);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.setAcceptCookie(true);
mWebview = (WebView) findViewById(R.id.webview);
//mWebviewPop = (WebView) findViewById(R.id.webviewPop);
mContainer = (FrameLayout) findViewById(R.id.webview_frame);
WebSettings webSettings = mWebview.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setAppCacheEnabled(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
webSettings.setSupportMultipleWindows(true);
mWebview.setWebViewClient(new UriWebViewClient());
mWebview.setWebChromeClient(new UriChromeClient());
mWebview.loadUrl(target_url);
mContext=this.getApplicationContext();
}
private class UriWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
String host = Uri.parse(url).getHost();
//Log.d("shouldOverrideUrlLoading", url);
if (host.equals(target_url_prefix))
{
// This is my web site, so do not override; let my WebView load
// the page
if(mWebviewPop!=null)
{
mWebviewPop.setVisibility(View.GONE);
mContainer.removeView(mWebviewPop);
mWebviewPop=null;
}
return false;
}
if(host.equals("m.facebook.com"))
{
return false;
}
// Otherwise, the link is not for a page on my site, so launch
// another Activity that handles URLs
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
return true;
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler,
SslError error) {
Log.d("onReceivedSslError", "onReceivedSslError");
//super.onReceivedSslError(view, handler, error);
}
}
class UriChromeClient extends WebChromeClient {
@Override
public boolean onCreateWindow(WebView view, boolean isDialog,
boolean isUserGesture, Message resultMsg) {
mWebviewPop = new WebView(mContext);
mWebviewPop.setVerticalScrollBarEnabled(false);
mWebviewPop.setHorizontalScrollBarEnabled(false);
mWebviewPop.setWebViewClient(new UriWebViewClient());
mWebviewPop.getSettings().setJavaScriptEnabled(true);
mWebviewPop.getSettings().setSavePassword(false);
mWebviewPop.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT));
mContainer.addView(mWebviewPop);
WebView.WebViewTransport transport = (WebView.WebViewTransport) resultMsg.obj;
transport.setWebView(mWebviewPop);
resultMsg.sendToTarget();
return true;
}
@Override
public void onCloseWindow(WebView window) {
Log.d("onCloseWindow", "called");
}
}
}
这个问题的关键是onCreateWindow。创建一个新窗口并将其插入到框架布局中，并在成功时将其删除。我在shouldOverrideUrlLoading 添加了删除。