UIWebView iOS not display Yahoo confirm SMS Security

Question

I try to develop an Application using Yahoo SDK. When App show a webview with url :

https://api.login.yahoo.com/oauth/v2/request_auth?oauth_token=....

Then I input my username and account to login. Then webview displays Confirm SMS security view. But the webview do not display the "verify" button, like the Image below:

My webview also set _webView.scalesPageToFit = YES;

How do I resolve this problem?

Thanks.

Answer 1

correct the webview frame using

    [_webView setFrame:CGRectMake(x, y, width, height)];

Answer 2

Use yahoo mobile login URL for login and set the yahoo api URL in "done" parameter. It redirect to yahoo api for your app authorization.

https://login.yahoo.com/m?&.src=oauth&.lang=en-us&.intl=us&.done=https://api.login.yahoo.com/oauth/v2/request_auth?oauth_token=.....